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Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:02:31,128 --> 00:02:32,995 - No, I don't know. - A few people. 2 00:02:36,728 --> 00:02:38,660 I was... it was terrible. 3 00:02:38,661 --> 00:02:40,028 Tomorrow's will be better. 4 00:02:50,760 --> 00:02:52,426 I don't think I can say that. 5 00:02:52,427 --> 00:02:54,225 Say it in a public forum. 6 00:02:54,226 --> 00:02:55,967 I need... I need evidence. 7 00:03:13,795 --> 00:03:15,127 It's big, no? 8 00:03:20,661 --> 00:03:22,186 Ever since I entered physics, 9 00:03:22,559 --> 00:03:25,160 people have been talking about this machine. 10 00:03:25,161 --> 00:03:27,828 The Large Hadron Collider, 11 00:03:27,829 --> 00:03:30,492 the biggest machine ever built by human beings, 12 00:03:30,493 --> 00:03:32,960 is finally going to turn on. 13 00:03:32,961 --> 00:03:37,060 And after many, many years 14 00:03:37,061 --> 00:03:39,427 of waiting and theorizing 15 00:03:39,428 --> 00:03:41,226 about how matter got created 16 00:03:41,227 --> 00:03:44,092 and about what the deep fundamental theory 17 00:03:44,093 --> 00:03:45,793 of nature is... 18 00:03:45,794 --> 00:03:49,425 all those theories are finally going to be tested, 19 00:03:49,426 --> 00:03:51,260 and we're gonna know something. 20 00:03:51,261 --> 00:03:53,260 And we don't know what it's gonna be now, 21 00:03:53,262 --> 00:03:54,627 but we will know, 22 00:03:54,628 --> 00:03:56,312 and it's gonna change everything. 23 00:03:58,559 --> 00:04:02,161 And if the LHC sees new particles, 24 00:04:02,162 --> 00:04:04,428 we're on the right track. 25 00:04:04,429 --> 00:04:08,295 And if it doesn't, not only have we missed something, 26 00:04:08,296 --> 00:04:14,061 but we may not ever know how to proceed. 27 00:04:15,060 --> 00:04:16,958 We are at a fork in the road, 28 00:04:16,959 --> 00:04:20,660 and it's either going to be a golden era... 29 00:04:20,661 --> 00:04:22,326 Oh! 30 00:04:22,327 --> 00:04:25,260 Or it's going to be quite stark. 31 00:04:25,261 --> 00:04:29,727 And I've never heard of a moment like this in history, 32 00:04:29,728 --> 00:04:34,593 where an entire field is hinging on a single event. 33 00:04:34,594 --> 00:04:35,894 - Hi. - Hi. 34 00:04:35,895 --> 00:04:37,160 - I'm David. - I'm Fabiola. 35 00:04:37,161 --> 00:04:38,793 Fabiola, nice to meet you. 36 00:04:38,794 --> 00:04:42,260 - So, look, I have suggested to be on this side 37 00:04:42,261 --> 00:04:45,225 because this big wheel is quite spectacular. 38 00:04:45,226 --> 00:04:47,727 Yeah, yeah. 39 00:04:47,728 --> 00:04:49,125 More than ever, 40 00:04:49,126 --> 00:04:50,960 this will require the collaboration 41 00:04:50,961 --> 00:04:52,993 between the theory and experimentalists, 42 00:04:52,994 --> 00:04:54,274 so it would be a very nice period 43 00:04:54,460 --> 00:04:56,393 where we work together and, uh... 44 00:04:56,394 --> 00:04:59,792 - Well, it's fun to finally interact with experimentalists. 45 00:04:59,793 --> 00:05:01,928 I mean, I used to be just in my office, 46 00:05:01,929 --> 00:05:05,101 coming up with, you know, crazy ideas. 47 00:05:11,093 --> 00:05:12,893 It's a big thing. 48 00:05:12,894 --> 00:05:15,893 There is a general sense waiting for this machine to start, 49 00:05:15,894 --> 00:05:20,227 this massive machine that has taken so many years to build. 50 00:05:20,228 --> 00:05:23,927 We are all in great anticipation of what it might find. 51 00:05:23,928 --> 00:05:26,293 And every time there's even a rumor 52 00:05:26,294 --> 00:05:28,560 that a new particle is discovered... 53 00:05:28,561 --> 00:05:30,759 even before it turns on... 54 00:05:30,760 --> 00:05:35,325 the entire field goes into a fever pitch. 55 00:05:35,326 --> 00:05:40,327 The experiment was designed initially in the mid '80s 56 00:05:40,328 --> 00:05:43,493 and has taken this long to construct. 57 00:05:43,494 --> 00:05:48,293 There are 10,000 people of over 100 nationalities. 58 00:05:48,294 --> 00:05:50,059 That includes countries 59 00:05:50,060 --> 00:05:52,160 which are mortal enemies of each other, 60 00:05:52,161 --> 00:05:55,926 like India and Pakistan, and Georgia and Russia, 61 00:05:55,927 --> 00:05:57,627 and Iran and Israel. 62 00:05:57,628 --> 00:06:00,560 All have physicists working on this machine. 63 00:06:00,561 --> 00:06:03,395 These big blue things are 7-ton 64 00:06:04,394 --> 00:06:06,160 superconducting magnets, 65 00:06:06,161 --> 00:06:08,827 which have to be cooled with liquid helium 66 00:06:08,828 --> 00:06:10,993 to the coldest temperatures on Earth, 67 00:06:10,994 --> 00:06:12,393 colder than empty space. 68 00:06:13,393 --> 00:06:16,794 There are 100,000 computers 69 00:06:16,795 --> 00:06:20,493 connected all over the world to deal with the data. 70 00:06:20,495 --> 00:06:23,260 In fact, the worldwide web was invented at CERN 71 00:06:23,261 --> 00:06:24,794 so that physicists all over the planet 72 00:06:24,795 --> 00:06:26,626 could share the data. 73 00:06:26,627 --> 00:06:30,294 The United States was building a machine just like this, 74 00:06:30,295 --> 00:06:33,460 in fact, a bigger machine, in Texas, 75 00:06:33,461 --> 00:06:37,926 but they ran into a small technical difficulty. 76 00:06:37,927 --> 00:06:42,660 - I doubt anyone believes that the most pressing issues 77 00:06:42,661 --> 00:06:48,426 facing the nation include an insufficient understanding 78 00:06:48,426 --> 00:06:51,326 of the origins of the universe. 79 00:06:51,326 --> 00:06:54,661 - Unfortunately, the Superconducting Super Collider 80 00:06:54,662 --> 00:06:58,160 was canceled by Congress in 1993. 81 00:06:58,161 --> 00:07:00,224 - And finally, he's saying, "Well, if we don't do it, 82 00:07:00,226 --> 00:07:01,925 the Europeans will do it." 83 00:07:01,926 --> 00:07:03,793 Let them do it! 84 00:07:03,794 --> 00:07:05,959 We'll steal their technology like they steal our technology. 85 00:07:05,960 --> 00:07:08,725 It got very political. 86 00:07:08,726 --> 00:07:13,393 It was very expensive, very complicated. 87 00:07:13,394 --> 00:07:15,727 It's hard for physicists to explain 88 00:07:15,728 --> 00:07:18,459 why we do these kinds of experiments. 89 00:07:18,460 --> 00:07:22,658 The purpose of the machine is not military application. 90 00:07:22,660 --> 00:07:24,826 It's not commercial application. 91 00:07:24,827 --> 00:07:28,659 It's to understand something about the basic laws of physics. 92 00:07:28,660 --> 00:07:31,760 There are two kinds of particle physicists: 93 00:07:31,761 --> 00:07:33,660 there are the experimentalists. 94 00:07:33,661 --> 00:07:37,459 They built the big machines, run the experiments, 95 00:07:37,460 --> 00:07:40,294 analyze the data, and try to discover things, 96 00:07:41,294 --> 00:07:43,794 like new particles; 97 00:07:43,795 --> 00:07:47,294 And then there are the theorists, like me. 98 00:07:48,292 --> 00:07:50,426 We construct the theories 99 00:07:50,427 --> 00:07:53,926 that try to explain everything we see in nature. 100 00:07:53,927 --> 00:07:58,425 Without us, the experimentalists are in the dark, 101 00:07:58,426 --> 00:08:00,493 but without them, 102 00:08:00,494 --> 00:08:02,929 we'll never know the truth. 103 00:08:06,060 --> 00:08:08,125 - I mean, if you go, it won't be so terrible. 104 00:08:08,126 --> 00:08:10,393 When I was at Stanford, I had a mentor: 105 00:08:10,394 --> 00:08:12,825 Savas Dimopoulos. 106 00:08:12,826 --> 00:08:17,060 Savas only likes to work on the biggest puzzles. 107 00:08:17,061 --> 00:08:18,927 Now, just for fun, 108 00:08:18,928 --> 00:08:22,059 I wanted to tell you that the enabling technologies that... 109 00:08:22,059 --> 00:08:24,659 - He has some of the most famous theories 110 00:08:24,660 --> 00:08:26,792 that will be tested at the LHC, 111 00:08:26,793 --> 00:08:30,627 but he doesn't know if any of them are true, 112 00:08:30,628 --> 00:08:34,160 so there's an intensity with which he approaches physics. 113 00:08:34,161 --> 00:08:37,793 If he works on a paper that could result in a Nobel Prize, 114 00:08:37,794 --> 00:08:40,659 he doesn't allow more than three people on the paper, 115 00:08:40,660 --> 00:08:42,725 because you can only share the Nobel Prize 116 00:08:42,726 --> 00:08:44,392 with three people. 117 00:08:44,393 --> 00:08:47,893 That's the level at which he's operating 118 00:08:47,894 --> 00:08:49,928 and the impact he's trying to have. 119 00:08:49,929 --> 00:08:52,452 - Takes us beyond the confines of atomic physics. 120 00:08:53,226 --> 00:08:54,893 In particle physics, 121 00:08:54,894 --> 00:08:58,458 you have to have a threshold amount of intelligence, 122 00:08:58,459 --> 00:09:01,125 whatever that means. 123 00:09:01,127 --> 00:09:03,658 But the thing that differentiates scientists 124 00:09:03,659 --> 00:09:07,260 is purely an artistic ability 125 00:09:07,261 --> 00:09:11,893 to discern what is a good idea, 126 00:09:11,894 --> 00:09:13,559 what is a beautiful idea, 127 00:09:13,560 --> 00:09:15,993 what is worth spending time on, 128 00:09:15,994 --> 00:09:19,125 and, most importantly, 129 00:09:19,126 --> 00:09:24,225 what is a problem that is sufficiently interesting, 130 00:09:24,227 --> 00:09:26,559 yet sufficiently difficult 131 00:09:26,560 --> 00:09:29,258 that it hasn't yet been solved, 132 00:09:29,259 --> 00:09:34,959 but the time for solving it has come now? 133 00:09:58,561 --> 00:10:01,125 - So people have been waiting for this experiment, 134 00:10:01,126 --> 00:10:03,162 the LHC, for a very long time. 135 00:10:03,824 --> 00:10:05,558 Nothing like it has ever happened. 136 00:10:05,559 --> 00:10:07,058 All the superlatives are justified. 137 00:10:07,059 --> 00:10:10,226 This is the case where the hype is... 138 00:10:10,228 --> 00:10:12,125 the hype is approximately accurate. 139 00:10:12,126 --> 00:10:14,660 To get, you know, 3,000 people 140 00:10:14,661 --> 00:10:16,092 to work on an experiment together, 141 00:10:16,093 --> 00:10:17,791 whose goal is to understand 142 00:10:17,792 --> 00:10:19,958 what's going on at distances a thousand times smaller 143 00:10:19,959 --> 00:10:21,625 than the proton... 144 00:10:21,626 --> 00:10:24,593 this is... this is a really extraordinary testament 145 00:10:24,594 --> 00:10:29,225 to what... to some of the highest ideals 146 00:10:29,226 --> 00:10:31,492 we can have as human beings. 147 00:10:31,493 --> 00:10:33,160 It's... 148 00:10:33,161 --> 00:10:36,159 - Nima and I got our PhDs around the same time. 149 00:10:36,159 --> 00:10:37,958 He's a couple years ahead of me. 150 00:10:37,959 --> 00:10:42,094 And Nima is the star of our generation, 151 00:10:42,095 --> 00:10:45,993 and he's the guy we all followed and looked up to 152 00:10:45,994 --> 00:10:47,390 and tried to keep up with 153 00:10:47,391 --> 00:10:50,464 and tried to outpace if we could. 154 00:10:54,460 --> 00:10:56,224 Since the mid '70s, 155 00:10:56,225 --> 00:10:58,959 we've had an amazingly successful theory of nature 156 00:10:58,960 --> 00:11:01,593 that we call the Standard Model of particle physics. 157 00:11:01,594 --> 00:11:04,259 But sitting in the heart of the theory is a sickness, 158 00:11:04,260 --> 00:11:07,826 very, very glaring conceptual problems 159 00:11:07,828 --> 00:11:10,036 that infected this fantastic understanding. 160 00:11:11,926 --> 00:11:14,258 Why is the universe big? 161 00:11:14,259 --> 00:11:16,925 Why is gravity so much weaker than all the other forces? 162 00:11:16,926 --> 00:11:19,658 The kinds of answers that this theory gives to these questions 163 00:11:19,659 --> 00:11:22,259 seems so patently absurd 164 00:11:22,260 --> 00:11:26,492 that we think that we're missing something very, very big. 165 00:11:26,493 --> 00:11:28,625 And on top of all of that, 166 00:11:28,626 --> 00:11:30,793 there is one prediction of this theory... 167 00:11:30,794 --> 00:11:32,392 absolutely crucial for it to even make 168 00:11:32,393 --> 00:11:34,492 internal theoretical sense... 169 00:11:34,493 --> 00:11:36,959 and this is the famous Higgs particle. 170 00:11:36,960 --> 00:11:38,759 The Higgs, or something like it, must show up. 171 00:11:38,760 --> 00:11:40,261 If it doesn't show up, 172 00:11:40,262 --> 00:11:42,591 there's something truly, deeply wrong, 173 00:11:42,592 --> 00:11:43,925 very, very, deeply wrong 174 00:11:43,926 --> 00:11:45,792 with the way we think about physics. 175 00:11:45,793 --> 00:11:47,226 There are strong reasons 176 00:11:47,227 --> 00:11:48,591 to think that some of these questions 177 00:11:48,592 --> 00:11:50,659 will find answers at the LHC. 178 00:11:50,660 --> 00:11:52,091 There's been no shortage of ideas 179 00:11:52,092 --> 00:11:54,459 for what they might be, 180 00:11:54,460 --> 00:11:57,926 but this is really this generation of people's... 181 00:11:57,927 --> 00:11:59,925 my generation of people's... only shot. 182 00:12:12,793 --> 00:12:14,959 Ah, so the boss comes. 183 00:12:23,628 --> 00:12:26,992 I first came to CERN in 1987. 184 00:12:26,993 --> 00:12:30,124 I was a very young undergraduate student, 185 00:12:30,125 --> 00:12:33,127 and I remember the first time I entered the site. 186 00:12:33,128 --> 00:12:35,660 I was a bit scared by the corridors 187 00:12:35,661 --> 00:12:38,159 in the CERN main site, 188 00:12:38,160 --> 00:12:40,926 so I was almost lost in those corridors. 189 00:12:40,927 --> 00:12:42,658 For me, it has been a wonderful experience, 190 00:12:42,659 --> 00:12:44,391 because I had the chance of being involved 191 00:12:44,392 --> 00:12:46,158 right from the beginning 192 00:12:46,159 --> 00:12:50,159 and to see, really, an experiment from starting and... 193 00:12:50,160 --> 00:12:51,826 from zero, essentially. 194 00:12:51,827 --> 00:12:53,626 - I've seen two inventors place out of the ten, 195 00:12:53,627 --> 00:12:55,059 and we probably have seen... 196 00:12:55,060 --> 00:12:56,593 - I don't think I can describe right now 197 00:12:56,594 --> 00:12:58,458 the excitement about first beam. 198 00:12:58,459 --> 00:13:00,892 I mean, the entire control room 199 00:13:00,893 --> 00:13:05,325 is like a group of six-year-olds 200 00:13:05,326 --> 00:13:07,793 whose birthday is next week, you know, 201 00:13:07,794 --> 00:13:09,159 and there's going to be cake, 202 00:13:09,160 --> 00:13:10,758 and there's going to be presents, 203 00:13:10,759 --> 00:13:12,424 and all their friends are going to be there, 204 00:13:12,425 --> 00:13:13,894 and they just, you know... 205 00:13:13,894 --> 00:13:16,492 they just know it's going to be great. 206 00:13:16,493 --> 00:13:18,558 You know, they're kind of scattered, 207 00:13:18,559 --> 00:13:20,791 and I can't imagine, 'cause they're not that big, right? 208 00:13:20,792 --> 00:13:22,226 I've been a postdoc here for a year, 209 00:13:22,226 --> 00:13:23,591 so I'm a relative newcomer. 210 00:13:23,592 --> 00:13:25,275 But my timing is sort of perfect. 211 00:13:25,960 --> 00:13:27,660 I mean, to be on the ground floor 212 00:13:27,661 --> 00:13:29,259 when the data first comes... 213 00:13:29,260 --> 00:13:30,492 it's awesome. 214 00:13:30,493 --> 00:13:32,926 That means I have 5,000 emails. 215 00:13:32,927 --> 00:13:35,291 There's a huge difference 216 00:13:35,292 --> 00:13:38,159 between theorists and experimentalists. 217 00:13:38,160 --> 00:13:40,225 I mean, when I started college, 218 00:13:40,226 --> 00:13:43,758 I absolutely did not want to do physics. 219 00:13:43,759 --> 00:13:46,179 Physics meant to me everything that was boring: 220 00:13:46,926 --> 00:13:50,892 textbooks, theories, proofs. 221 00:13:50,893 --> 00:13:53,155 But then I discovered the experimental side, 222 00:13:53,927 --> 00:13:57,894 and the experimental side is the hands-on aspect. 223 00:13:57,895 --> 00:13:59,758 It's about taking a theory, 224 00:13:59,759 --> 00:14:03,625 which is abstract, and making it real. 225 00:14:03,626 --> 00:14:05,204 How do you build an experiment 226 00:14:05,926 --> 00:14:09,760 to discover something that the theory predicts? 227 00:14:09,761 --> 00:14:12,927 And that aspect is what I love. 228 00:14:27,628 --> 00:14:30,325 Of course, when constructing the whole thing, 229 00:14:30,326 --> 00:14:32,258 we several times thought, 230 00:14:32,259 --> 00:14:35,158 "What if the whole thing just does not work?" 231 00:14:35,159 --> 00:14:37,092 I really believe now this will work, 232 00:14:37,093 --> 00:14:40,124 but the next thing is, will we ever find something? 233 00:14:40,125 --> 00:14:43,126 So maybe we will just find nothing new. 234 00:14:43,127 --> 00:14:45,426 It would be a catastrophe for physics. 235 00:14:45,427 --> 00:14:47,291 We would, somehow... 236 00:14:47,292 --> 00:14:49,958 none of the open questions which we have at the moment 237 00:14:49,959 --> 00:14:53,092 would've been answered. 238 00:14:53,094 --> 00:14:59,224 - So the LHC is basically the most fundamental of experiments. 239 00:14:59,225 --> 00:15:01,993 It's like what any child would design as an experiment. 240 00:15:01,994 --> 00:15:06,126 You take two things, and you smash them together. 241 00:15:06,127 --> 00:15:09,057 And you get a lot of stuff that comes out of that collision, 242 00:15:09,058 --> 00:15:12,292 and you try to understand that stuff. 243 00:15:12,294 --> 00:15:14,158 Now, in this case, 244 00:15:14,159 --> 00:15:17,224 what we're smashing together is tiny protons, 245 00:15:17,225 --> 00:15:20,726 which are inside the center of every atom. 246 00:15:20,727 --> 00:15:23,491 And in order to get them going as fast as possible, 247 00:15:23,492 --> 00:15:27,557 we have to build this huge 17-mile ring, 248 00:15:27,558 --> 00:15:31,125 and we run those protons around the ring multiple times 249 00:15:31,126 --> 00:15:34,792 to build up speed, almost to the speed of light, 250 00:15:34,792 --> 00:15:38,091 and then we collide two beams going in opposite directions 251 00:15:38,092 --> 00:15:39,993 at four points, 252 00:15:39,994 --> 00:15:43,325 and at those four points are four different experiments: 253 00:15:43,326 --> 00:15:48,292 ATLAS, LHCb, CMS, and ALICE. 254 00:15:48,293 --> 00:15:50,260 Now, I work on the ATLAS experiment. 255 00:15:50,261 --> 00:15:52,795 And ATLAS is like a huge seven-story camera 256 00:15:53,793 --> 00:15:57,959 that takes a snapshot of every single collision, 257 00:15:57,960 --> 00:16:00,726 and that's billions of collisions. 258 00:16:00,727 --> 00:16:04,659 And the hope is that we'll see the very famous Higgs particle. 259 00:16:04,660 --> 00:16:07,459 But every time we've turned on the new accelerator 260 00:16:07,460 --> 00:16:08,892 at a higher energy, 261 00:16:08,893 --> 00:16:10,659 we've always been surprised. 262 00:16:10,660 --> 00:16:14,159 So the real hope is that we'll see the Higgs, 263 00:16:14,160 --> 00:16:16,528 but that there's also something amazingly new. 264 00:16:19,094 --> 00:16:24,259 - You can liken it to when we put a man on the moon. 265 00:16:24,260 --> 00:16:25,956 It's that level of collaborative effort. 266 00:16:25,957 --> 00:16:27,925 I would say, even bigger than that. 267 00:16:27,926 --> 00:16:29,591 This is closer to something like 268 00:16:29,592 --> 00:16:32,324 human beings building the Pyramids. 269 00:16:32,325 --> 00:16:33,792 Why did they do it? 270 00:16:33,793 --> 00:16:35,093 Why are we doing it? 271 00:16:35,094 --> 00:16:36,792 We actually have two answers. 272 00:16:36,793 --> 00:16:39,059 One answer is what we tell people, 273 00:16:39,060 --> 00:16:41,893 and the other answer is the truth. 274 00:16:43,127 --> 00:16:44,992 I'll tell you both. 275 00:16:44,993 --> 00:16:47,791 And there's nothing incorrect about the first answer. 276 00:16:47,792 --> 00:16:50,725 It's just... it doesn't... it's not the thing that drives us. 277 00:16:50,726 --> 00:16:52,491 It's not how we think about it, 278 00:16:52,492 --> 00:16:54,491 but it's something you can say quickly, 279 00:16:54,727 --> 00:16:58,125 and the person you're talking to won't, you know, 280 00:16:58,126 --> 00:17:01,492 get diverted or pass out or pick up the SkyMall catalog 281 00:17:01,493 --> 00:17:03,924 if you happen to be next to them on an airplane. 282 00:17:03,925 --> 00:17:05,459 Answer number one: 283 00:17:05,460 --> 00:17:09,558 we are reproducing the physics, 284 00:17:09,559 --> 00:17:12,560 the conditions, just after the big bang. 285 00:17:12,561 --> 00:17:14,425 We're doing it in this collider, 286 00:17:14,426 --> 00:17:17,225 and we're reproducing that so we can see what it was like 287 00:17:17,226 --> 00:17:18,991 when the universe just started. 288 00:17:18,992 --> 00:17:20,423 This is what we tell people. 289 00:17:20,425 --> 00:17:23,091 Okay, answer two: 290 00:17:23,092 --> 00:17:25,759 we are trying to understand the basic laws of nature. 291 00:17:25,760 --> 00:17:28,325 It sounds slightly more mild, 292 00:17:28,326 --> 00:17:32,159 but this is really where we are and what we're trying to do. 293 00:17:32,160 --> 00:17:35,591 We study particles, because just after the big bang, 294 00:17:35,592 --> 00:17:37,792 all there was was particles, 295 00:17:37,793 --> 00:17:42,892 and they carried the information about how our universe started 296 00:17:42,893 --> 00:17:45,759 and how it got to be the way it is 297 00:17:45,760 --> 00:17:49,123 and its future. 298 00:17:49,124 --> 00:17:51,592 At the beginning of the 1900s, 299 00:17:51,593 --> 00:17:55,158 it became clear that all known matter, 300 00:17:55,159 --> 00:17:56,958 everything that we know about, 301 00:17:56,959 --> 00:17:58,459 is made of atoms, 302 00:17:58,460 --> 00:18:01,993 and that atoms are made of just three particles: 303 00:18:01,994 --> 00:18:05,995 the electron, the proton, and the neutron. 304 00:18:07,993 --> 00:18:11,725 In the '30s, other particles were discovered, 305 00:18:11,726 --> 00:18:13,793 and by the 1960s, 306 00:18:13,794 --> 00:18:15,825 there were hundreds of new particles, 307 00:18:15,826 --> 00:18:18,792 with a new particle discovered every week. 308 00:18:18,793 --> 00:18:21,424 And there was mass confusion, 309 00:18:21,425 --> 00:18:25,558 until a number of theorists realized 310 00:18:25,559 --> 00:18:27,793 that there was a simple mathematical structure 311 00:18:27,794 --> 00:18:30,591 that explained all of this, 312 00:18:30,592 --> 00:18:32,391 that most of these particles 313 00:18:32,392 --> 00:18:34,159 were made of the same three little bits 314 00:18:34,160 --> 00:18:36,160 we call quarks, 315 00:18:36,160 --> 00:18:37,439 and that there are only a handful 316 00:18:37,626 --> 00:18:39,492 of truly fundamental particles, 317 00:18:39,493 --> 00:18:42,424 which all fit together in a nice, neat pattern. 318 00:18:42,425 --> 00:18:45,394 And there was born the Standard Model. 319 00:18:48,391 --> 00:18:51,290 Eventually, all the particles in the theory 320 00:18:51,291 --> 00:18:55,427 were discovered, except one: the Higgs. 321 00:18:57,425 --> 00:19:01,591 And the Higgs is unlike any other particle. 322 00:19:01,592 --> 00:19:04,924 It's the linchpin of the Standard Model. 323 00:19:04,925 --> 00:19:08,659 Its theory was written down in the 1960s by Peter Higgs 324 00:19:08,660 --> 00:19:11,125 and a number of other theorists. 325 00:19:11,126 --> 00:19:13,892 We believe it is the crucial piece 326 00:19:13,893 --> 00:19:16,823 responsible for holding matter together. 327 00:19:16,824 --> 00:19:21,124 It is connected to a field which fills all of space 328 00:19:21,125 --> 00:19:24,625 and which gives particles, like the electron, mass 329 00:19:24,626 --> 00:19:27,659 and allowed them to get caught in atoms 330 00:19:27,660 --> 00:19:30,560 and thus is responsible for the creation of atoms, 331 00:19:30,561 --> 00:19:33,159 molecules, planets, and people. 332 00:19:33,160 --> 00:19:36,594 Without the Higgs, life as we know it wouldn't exist. 333 00:19:38,592 --> 00:19:40,424 But to prove that it's true, 334 00:19:40,425 --> 00:19:43,758 we have to smash particles together at high enough energy 335 00:19:43,760 --> 00:19:48,425 to disturb the field and create a Higgs particle. 336 00:19:48,426 --> 00:19:50,291 If the Higgs exists, 337 00:19:50,292 --> 00:19:53,491 the LHC is the machine that will discover it. 338 00:19:53,491 --> 00:19:56,124 - Let's assume you're successful and everything comes out okay. 339 00:19:56,125 --> 00:19:58,224 - Sure. - What do we gain from it? 340 00:19:58,225 --> 00:19:59,826 What's the economic return? 341 00:19:59,826 --> 00:20:01,423 How do you justify all this? 342 00:20:01,424 --> 00:20:03,325 By the way, I am an economist. 343 00:20:03,326 --> 00:20:06,392 I don't hold it against you. 344 00:20:06,393 --> 00:20:10,392 The question by an economist was, 345 00:20:10,393 --> 00:20:14,292 "What is the financial gain of running an experiment like this 346 00:20:14,293 --> 00:20:17,891 and the discoveries that we will make in this experiment?" 347 00:20:17,892 --> 00:20:20,325 And it's a very, very simple answer. 348 00:20:20,326 --> 00:20:23,592 I have no idea. 349 00:20:23,593 --> 00:20:25,124 We have no idea. 350 00:20:25,125 --> 00:20:27,158 When radio waves were discovered, 351 00:20:27,159 --> 00:20:29,090 they weren't called radio waves, 352 00:20:29,091 --> 00:20:30,991 because there were no radios. 353 00:20:30,992 --> 00:20:33,925 They were discovered as some sort of radiation. 354 00:20:33,926 --> 00:20:37,723 Basic science for big breakthroughs 355 00:20:37,724 --> 00:20:39,423 needs to occur at a level 356 00:20:39,424 --> 00:20:42,159 where you're not asking, "What is the economic gain?" 357 00:20:42,160 --> 00:20:44,458 You're asking, "What do we not know, 358 00:20:44,459 --> 00:20:46,259 and where can we make progress?" 359 00:20:46,260 --> 00:20:49,423 So what is the LHC good for? 360 00:20:49,424 --> 00:20:53,324 Could be nothing other than just understanding everything. 361 00:21:03,660 --> 00:21:06,724 - The first time I ever saw ATLAS was in 2005. 362 00:21:06,725 --> 00:21:09,057 I had come out just to see what ATLAS would look like 363 00:21:09,058 --> 00:21:11,591 because there was a possibility that I could be working on it 364 00:21:11,592 --> 00:21:14,624 as a postdoc. 365 00:21:14,626 --> 00:21:18,291 I can remember walking in and just being like... 366 00:21:18,292 --> 00:21:19,924 You know, just stunned. 367 00:21:19,925 --> 00:21:21,758 I mean, me, stunned, you know, just, you know, 368 00:21:21,759 --> 00:21:23,824 already kind of having an idea of the magnitude. 369 00:21:23,825 --> 00:21:26,124 People tell you, "Oh, it's five stories tall." 370 00:21:26,125 --> 00:21:27,791 And you go, "Oh, okay, five stories tall." 371 00:21:27,792 --> 00:21:29,658 And then you see. 372 00:21:29,659 --> 00:21:35,328 Five stories completely filled with microelectronics... 373 00:21:38,326 --> 00:21:41,991 All custom designed, all hand-soldered. 374 00:21:41,992 --> 00:21:46,626 You know, it's like as if it's a five-story Swiss watch. 375 00:23:51,627 --> 00:23:53,958 - There was this issue about the BCIDs. 376 00:23:53,959 --> 00:23:55,591 - We had our extended barrel out earlier, 377 00:23:55,592 --> 00:23:58,757 but it should be back in, and we should be... 378 00:23:58,758 --> 00:24:01,056 everything running normal. 379 00:24:01,058 --> 00:24:03,391 - Okay, so one more announcement. 380 00:24:03,392 --> 00:24:06,092 We have to be extremely careful 381 00:24:06,094 --> 00:24:07,124 what we do to the system. 382 00:24:07,324 --> 00:24:08,825 I mean, we know that anybody 383 00:24:08,826 --> 00:24:11,124 who's even updating a number somewhere 384 00:24:11,125 --> 00:24:13,924 might stop our system for more than an hour quite easily. 385 00:24:13,925 --> 00:24:17,558 So please be absolutely sure that you yourself 386 00:24:17,559 --> 00:24:20,091 and everybody in your system is not touching the system, 387 00:24:20,092 --> 00:24:23,390 unless it's been agreed by the shift leader, yeah? 388 00:24:23,392 --> 00:24:26,559 Nothing should be touched, yeah? 389 00:24:26,560 --> 00:24:27,992 And that includes all things 390 00:24:27,993 --> 00:24:29,458 that you're absolutely dead certain 391 00:24:29,459 --> 00:24:31,143 they will not do anything wrong. 392 00:24:32,124 --> 00:24:33,459 Especially those things. 393 00:24:35,225 --> 00:24:38,956 - It's being called the largest scientific experiment 394 00:24:38,957 --> 00:24:40,458 in history, 395 00:24:40,459 --> 00:24:43,391 and some say one that could cause Armageddon. 396 00:24:43,392 --> 00:24:45,725 - It's the strangest experiment ever: 397 00:24:45,726 --> 00:24:47,625 mankind's most ambitious attempt 398 00:24:47,626 --> 00:24:50,759 to understand how we all got here. 399 00:24:52,592 --> 00:24:54,991 - Thousands of scientists from around the world 400 00:24:54,992 --> 00:24:58,590 spent 20 years designing an extraordinary machine. 401 00:24:58,591 --> 00:25:03,123 It cost �5 billion and will switching on very soon. 402 00:25:03,124 --> 00:25:05,225 This is a genesis machine, 403 00:25:05,226 --> 00:25:06,493 a window on creation. 404 00:25:11,558 --> 00:25:14,492 Five months of testing on... 405 00:25:17,566 --> 00:25:20,458 - They're looking for something called the God Particle, 406 00:25:20,459 --> 00:25:22,891 but skeptics are saying nobody knows what will happen 407 00:25:22,892 --> 00:25:24,626 when they turn on the switch. 408 00:25:24,627 --> 00:25:27,558 - A group of French scientists believe the collider 409 00:25:27,559 --> 00:25:29,056 might create a black hole 410 00:25:29,057 --> 00:25:30,958 that could swallow up the earth, 411 00:25:30,959 --> 00:25:34,461 and they filed suit to stop the project from going forward. 412 00:25:38,392 --> 00:25:40,726 Hello? 413 00:25:40,727 --> 00:25:42,458 No, absolutely not. 414 00:25:42,459 --> 00:25:45,590 Well, no, there is no scientific ground to what they say. 415 00:25:45,591 --> 00:25:48,624 It's not possible that the LHC is going to destroy the world. 416 00:25:48,624 --> 00:25:50,158 It's absolutely ridiculous. 417 00:25:50,159 --> 00:25:52,390 Okay, it is 9:15. 418 00:25:52,391 --> 00:25:56,290 We are 15 minutes away from beam. 419 00:25:56,291 --> 00:25:58,659 We've been sitting here, about 7:00, 420 00:25:58,660 --> 00:26:01,992 and absolutely nobody brought food. 421 00:26:01,993 --> 00:26:03,757 Again, 15 minutes to beam. 422 00:26:03,758 --> 00:26:05,125 - Ciao, ciao. - Stress levels are high. 423 00:26:05,126 --> 00:26:06,725 Ciao. 424 00:26:06,726 --> 00:26:08,391 - But since I'm in a room full of Italians, 425 00:26:08,392 --> 00:26:09,891 the stress level's pretty cool here. 426 00:26:09,892 --> 00:26:11,292 But we have no coffee either. 427 00:26:11,293 --> 00:26:13,058 No coffee. Who didn't bring coffee? 428 00:26:13,059 --> 00:26:14,589 What we're going to see today 429 00:26:14,590 --> 00:26:18,257 is the launch of the first beam of protons 430 00:26:18,258 --> 00:26:20,758 around this enormous ring. 431 00:26:22,292 --> 00:26:25,757 Very shortly, Lyn Evans, the project director, 432 00:26:25,758 --> 00:26:28,423 is going to be addressing CERN staff, 433 00:26:28,424 --> 00:26:30,457 who are gathered at different points 434 00:26:30,458 --> 00:26:33,824 around this massive complex. 435 00:26:33,825 --> 00:26:39,658 - It's just the first glimpse at the fact the machine can run. 436 00:26:39,659 --> 00:26:41,226 I mean, so what you need, really, 437 00:26:41,227 --> 00:26:42,924 is, you need two beams colliding together 438 00:26:42,926 --> 00:26:44,624 for quite a few... 439 00:26:44,625 --> 00:26:46,557 quite a long period of time before you calculate, 440 00:26:46,558 --> 00:26:48,091 get enough... 441 00:26:48,092 --> 00:26:50,791 sufficient statistics in which to actually 442 00:26:50,792 --> 00:26:52,924 be able to look for the new physics. 443 00:26:52,925 --> 00:26:54,991 But single beam, the first beam, isn't even that. 444 00:26:54,992 --> 00:26:56,625 You're not even getting any collisions. 445 00:26:56,626 --> 00:26:59,092 It's just one beam going around in a circle, 446 00:26:59,093 --> 00:27:00,757 not even at the high energies. 447 00:27:00,758 --> 00:27:02,724 Just one beam going around in the low energy circle, 448 00:27:02,725 --> 00:27:04,892 that sort of says, "Okay, we made it around the ring once 449 00:27:04,893 --> 00:27:05,924 for the first time." 450 00:27:06,125 --> 00:27:07,659 And it's a huge event. 451 00:27:07,660 --> 00:27:09,659 Right, after 19 years, you've been waiting 452 00:27:09,660 --> 00:27:11,322 for this first step. 453 00:27:11,323 --> 00:27:13,056 Let's get started, everybody. 454 00:27:13,058 --> 00:27:15,990 Now comes the day of reckoning. 455 00:27:15,991 --> 00:27:20,157 Five, four, three, 456 00:27:20,158 --> 00:27:23,090 two, one... 457 00:27:23,091 --> 00:27:25,490 Now. 458 00:27:25,491 --> 00:27:26,991 No beam. 459 00:27:28,957 --> 00:27:30,423 Yeah. 460 00:27:30,424 --> 00:27:34,324 So where are we with the injection kicker? 461 00:27:34,325 --> 00:27:37,159 Oh, well... they're out. 462 00:27:37,160 --> 00:27:40,157 Okay, never mind. 463 00:27:40,158 --> 00:27:41,656 Let's go. 464 00:27:41,657 --> 00:27:45,423 Five, four, three, 465 00:27:45,424 --> 00:27:49,591 two, one, zero. 466 00:27:57,092 --> 00:27:58,657 We get a beam on this pulse? 467 00:27:58,657 --> 00:28:00,992 I hope so. 468 00:28:13,826 --> 00:28:14,324 Yes! 469 00:28:30,359 --> 00:28:32,825 - Well, last night I was, like, waking up constantly. 470 00:28:32,826 --> 00:28:34,390 Like, "Did we set that right? 471 00:28:34,391 --> 00:28:36,704 What about... did we disable... oh, my gosh!" 472 00:28:40,423 --> 00:28:41,824 Marzio. 473 00:28:41,825 --> 00:28:44,556 I have a plot for you. 474 00:28:44,557 --> 00:28:46,655 Okay, check this out. 475 00:28:46,656 --> 00:28:48,058 This is Z. 476 00:28:48,059 --> 00:28:50,325 This is timing, in nanoseconds, 477 00:28:50,326 --> 00:28:52,159 which we knew from the cosmic data. 478 00:28:52,160 --> 00:28:54,292 - That is very nice. - Yes. 479 00:28:54,293 --> 00:28:56,723 - Upstairs, I think people were more excited about this. 480 00:28:56,724 --> 00:28:59,490 - If you're in Google, that means... that's the world. 481 00:28:59,491 --> 00:29:01,391 This is the most important thing today. 482 00:29:01,392 --> 00:29:02,658 This is the first, 483 00:29:02,659 --> 00:29:03,991 and this tells us a lot of things. 484 00:29:03,992 --> 00:29:05,656 It tells us that the magnetic properties 485 00:29:05,657 --> 00:29:06,956 of the machine are good, 486 00:29:06,957 --> 00:29:08,656 that the aperture is clear. 487 00:29:08,657 --> 00:29:11,123 There's nothing is sticking into the beam pipe anywhere. 488 00:29:11,124 --> 00:29:15,157 So a very, very encouraging sign and remarkable progress. 489 00:29:15,158 --> 00:29:17,057 - Did you guys see our beautiful plot? 490 00:29:17,058 --> 00:29:18,790 - What? - Okay, I want to show you this. 491 00:29:18,990 --> 00:29:20,490 Come on, show them the plot. 492 00:29:20,491 --> 00:29:22,457 You can take a picture of... here you go. 493 00:29:22,458 --> 00:29:24,824 Well, see if you can get it. 494 00:29:24,825 --> 00:29:26,158 I don't think there's anyone else 495 00:29:26,159 --> 00:29:28,223 I can show my plot to, so... 496 00:29:28,225 --> 00:29:29,591 It worked. 497 00:29:29,592 --> 00:29:31,391 It just worked. 498 00:29:31,392 --> 00:29:33,657 And there are so few times in life where it just works. 499 00:29:33,658 --> 00:29:36,057 And there are so even fewer times in life 500 00:29:36,058 --> 00:29:38,891 where it just works great. 501 00:29:38,891 --> 00:29:40,158 We rocked. 502 00:29:40,158 --> 00:29:42,494 I mean, Tile, first beam... 503 00:29:44,493 --> 00:29:46,392 We destroyed that shit. 504 00:29:46,393 --> 00:29:48,724 They got a beam circulating. 505 00:29:48,725 --> 00:29:52,390 They've had beams circulating for a full 30 seconds. 506 00:29:52,391 --> 00:29:53,625 So let me understand. 507 00:29:53,626 --> 00:29:56,724 This is one beam going one way? 508 00:29:56,725 --> 00:29:58,490 - They have one beam going one way, 509 00:29:58,491 --> 00:30:00,623 and then they went to the other beam going the other way. 510 00:30:00,623 --> 00:30:01,728 Well, does it work? 511 00:30:01,928 --> 00:30:03,557 The second beam, did it go fully around? 512 00:30:03,558 --> 00:30:05,790 - Everything... - they both went around. 513 00:30:05,791 --> 00:30:07,990 I think they had the beam go around 514 00:30:07,991 --> 00:30:09,256 about a million times. 515 00:30:09,257 --> 00:30:10,725 Something like that. 516 00:30:10,726 --> 00:30:14,123 - Yeah, their Twitter feed said 10 million. 517 00:30:14,124 --> 00:30:18,124 - Now we'll become, you know, CERN Twitter junkies. 518 00:30:21,559 --> 00:30:23,590 I guess this is exciting. 519 00:30:23,591 --> 00:30:27,290 My logical self wants to be excited. 520 00:30:27,291 --> 00:30:31,737 My psychological self is very cautious. 521 00:30:45,724 --> 00:30:47,489 My parents are both Iranian 522 00:30:47,491 --> 00:30:50,591 and both physicists, 523 00:30:50,592 --> 00:30:54,758 and my father in particular had real political difficulties 524 00:30:54,759 --> 00:30:55,893 with the regime, 525 00:30:56,891 --> 00:30:59,757 and we had to go underground for a number of years, 526 00:30:59,757 --> 00:31:02,992 and we ended up escaping from Iran 527 00:31:02,993 --> 00:31:07,158 through the border of Turkey. 528 00:31:07,159 --> 00:31:11,757 But then, through a number of wonderful accidents, 529 00:31:11,758 --> 00:31:13,557 we ended up in Canada. 530 00:31:13,558 --> 00:31:16,256 I got interested in physics 531 00:31:16,257 --> 00:31:18,257 when I was 13 or 14 years old. 532 00:31:18,258 --> 00:31:21,790 It just offered the way to combine the two things 533 00:31:21,791 --> 00:31:23,291 I really loved: 534 00:31:23,292 --> 00:31:26,091 mathematics and things in the natural world. 535 00:31:26,092 --> 00:31:27,623 You almost done? 536 00:31:27,624 --> 00:31:29,389 Yeah. 537 00:31:29,390 --> 00:31:31,588 - It's just saying "What if?" - It's, uh... yeah. 538 00:31:31,589 --> 00:31:33,456 - You're preparing a broader audience for this. 539 00:31:33,457 --> 00:31:35,989 - Okay, now I'm going to just do something fun. 540 00:31:35,990 --> 00:31:37,657 Just do something fun. 541 00:31:37,658 --> 00:31:39,791 What would be fun? 542 00:31:39,792 --> 00:31:41,424 - No, don't write "hell." It's a public... 543 00:31:41,425 --> 00:31:42,925 All right, I'm sorry! 544 00:31:44,125 --> 00:31:45,755 - How about that? - There we go. 545 00:31:45,756 --> 00:31:48,223 - Thinking about the LHC has been the center 546 00:31:48,224 --> 00:31:53,921 of my intellectual life for about 15, 16 years now. 547 00:31:53,922 --> 00:31:56,556 Depending on what happens with the LHC, 548 00:31:56,557 --> 00:31:58,157 you know, these are 15 years 549 00:31:58,157 --> 00:32:00,289 I could come to see as the best possible thing 550 00:32:00,290 --> 00:32:02,289 I could've been doing with this time, 551 00:32:02,290 --> 00:32:04,990 or it could just be that the entire 15 years 552 00:32:04,991 --> 00:32:06,390 might as well have not happened, 553 00:32:06,391 --> 00:32:07,990 had no impact, 554 00:32:07,991 --> 00:32:10,257 and then that's just 15 years that are gone. 555 00:32:10,258 --> 00:32:11,626 It's not the sort of thing 556 00:32:11,825 --> 00:32:14,591 where there's a consolation prize. 557 00:32:14,592 --> 00:32:19,125 You know, it's a fairly binary situation. 558 00:32:19,126 --> 00:32:21,124 I definitely won't feel, "Oh, well, 559 00:32:21,125 --> 00:32:22,957 "I gave it a good old college try. 560 00:32:22,958 --> 00:32:24,223 "It's all fine anyway. 561 00:32:24,224 --> 00:32:25,456 It's just trying that counts." 562 00:32:25,457 --> 00:32:27,089 I don't believe that. 563 00:32:27,090 --> 00:32:28,656 I don't believe it's just trying that counts. 564 00:32:28,657 --> 00:32:30,156 I believe getting it right is what counts. 565 00:32:30,157 --> 00:32:32,891 Okay, please take your seats. 566 00:32:32,892 --> 00:32:36,657 Now it's time for the entertainment part. 567 00:32:36,658 --> 00:32:40,089 So as with every great physics event, 568 00:32:40,090 --> 00:32:43,158 we're going to start with a big bang, 569 00:32:43,158 --> 00:32:45,157 the ATLAS big bang event, 570 00:32:45,159 --> 00:32:48,557 and that's going to follow with music all evening, 571 00:32:48,558 --> 00:32:51,158 people from ATLAS, who are going to be performing for you. 572 00:32:51,159 --> 00:32:53,557 So let's get started. 573 00:32:53,558 --> 00:32:58,056 - Take 2,000 intelligent, ambitious, 574 00:32:58,057 --> 00:32:59,625 type "A" personalities. 575 00:32:59,626 --> 00:33:02,791 You make them work 16-hour days, 576 00:33:02,792 --> 00:33:06,822 high-pressure situation, lots of stress. 577 00:33:06,823 --> 00:33:10,391 You know, that's the recipe for disaster. 578 00:33:10,392 --> 00:33:13,443 Or at least it's a recipe for a reality television program. 579 00:33:14,458 --> 00:33:16,091 But all that physics, 580 00:33:16,092 --> 00:33:20,589 Higgs, extra dimensions, supersymmetry, 581 00:33:20,590 --> 00:33:23,223 microscopic black holes, macroscopic black holes, 582 00:33:23,224 --> 00:33:26,057 Z-primes, you name it, 583 00:33:26,058 --> 00:33:31,391 the physics that the theorists only dream of 584 00:33:31,392 --> 00:33:33,225 is ours to discover. 585 00:33:34,657 --> 00:33:37,991 Thank you. 586 00:34:16,224 --> 00:34:17,170 ? Oh, yeah ? 587 00:34:23,123 --> 00:34:25,423 ? Thanks to the Large Hadron Collider ? 588 00:34:25,424 --> 00:34:27,666 Thank you, ATLAS! 589 00:34:36,657 --> 00:34:39,990 - I grew up in Turkey from Greek parents 590 00:34:39,991 --> 00:34:44,223 and a middle-class family, 591 00:34:44,224 --> 00:34:48,558 and then, in the '60s, we became refugees. 592 00:34:48,559 --> 00:34:50,158 We had to leave Turkey 593 00:34:50,159 --> 00:34:53,123 because of ethnic tensions between Greeks and Turks 594 00:34:53,124 --> 00:34:55,956 over the island of Cyprus, 595 00:34:55,957 --> 00:34:59,490 and there were a lot of political cross currents, 596 00:34:59,491 --> 00:35:01,089 left, right, 597 00:35:01,090 --> 00:35:04,258 and I was a young, impressionable 13-year-old 598 00:35:04,259 --> 00:35:06,990 hearing the pro-left and pro-right arguments, 599 00:35:06,991 --> 00:35:09,891 so one day I would be convinced that one side was right. 600 00:35:09,892 --> 00:35:11,290 The other day, I would be convinced 601 00:35:11,291 --> 00:35:12,922 the other side was right. 602 00:35:12,923 --> 00:35:14,457 And then I was getting confused. 603 00:35:14,458 --> 00:35:16,257 How could both of these things be true 604 00:35:16,258 --> 00:35:18,655 if they were contrary to each other? 605 00:35:18,656 --> 00:35:22,490 So I decided to focus on a field 606 00:35:22,491 --> 00:35:26,423 where the truth didn't depend on the eloquence of the speaker. 607 00:35:26,424 --> 00:35:28,259 The truth was absolute. 608 00:35:30,257 --> 00:35:32,323 Of course, when I started out, 609 00:35:32,324 --> 00:35:35,289 I thought that within maybe five years 610 00:35:35,290 --> 00:35:38,090 the theories that I was working on 611 00:35:38,091 --> 00:35:39,989 were going to be tested 612 00:35:39,990 --> 00:35:43,290 and I was going to know the experimental truth 613 00:35:43,291 --> 00:35:46,557 and move on to the next round of ideas after that. 614 00:35:46,558 --> 00:35:49,455 Little did I know that the experiments 615 00:35:49,456 --> 00:35:51,091 would take far longer, 616 00:35:51,092 --> 00:35:53,723 and here I am, 30 years after, 617 00:35:53,724 --> 00:35:56,761 still not knowing the truth. 618 00:36:01,757 --> 00:36:04,289 Peter? 619 00:36:04,290 --> 00:36:05,991 - I can show you here a nice event. 620 00:36:05,991 --> 00:36:07,421 Did you see this from... 621 00:36:07,422 --> 00:36:09,289 - Ah, no. - Andreas showed me this. 622 00:36:09,290 --> 00:36:11,321 - I haven't seen it. - This is from yesterday night. 623 00:36:11,322 --> 00:36:14,290 This is now a real beam gas event. 624 00:36:14,291 --> 00:36:16,823 So you see the tracks also bent... 625 00:36:16,824 --> 00:36:18,956 - Bent by the field? - Very nice. 626 00:36:18,957 --> 00:36:20,271 Ah, no, I haven't seen... 627 00:36:20,471 --> 00:36:22,590 In some sense, I started form the wrong perspective 628 00:36:22,591 --> 00:36:24,257 and in the wrong way, 629 00:36:24,258 --> 00:36:26,624 because I'd been studying a lot of literature 630 00:36:26,626 --> 00:36:29,223 when I was at high school level. 631 00:36:29,224 --> 00:36:32,623 So literature, art, philosophy, history, 632 00:36:32,624 --> 00:36:35,589 and very little physics and mathematics. 633 00:36:35,590 --> 00:36:37,256 I'd also been studying music, piano, 634 00:36:37,257 --> 00:36:39,624 and so I was very much attracted by art. 635 00:36:42,290 --> 00:36:46,157 There are many similarities between music and physics. 636 00:36:46,158 --> 00:36:49,823 Classical music follows rules of harmony, 637 00:36:49,824 --> 00:36:52,958 which are really rules of physics and mathematics. 638 00:36:55,591 --> 00:36:58,957 But, also, I was fascinated by big questions. 639 00:36:58,958 --> 00:37:00,824 That is the possibility of addressing 640 00:37:00,825 --> 00:37:04,390 and answering big questions about nature, the universe, 641 00:37:04,391 --> 00:37:06,623 why, when, how, 642 00:37:06,624 --> 00:37:08,789 and when I finished high school, 643 00:37:08,790 --> 00:37:12,122 I thought that physics allow us 644 00:37:12,123 --> 00:37:14,258 to address this big question 645 00:37:14,259 --> 00:37:18,158 in a more practical way than, for instance, philosophy. 646 00:37:18,158 --> 00:37:20,957 That's why I decided to study physics. 647 00:37:39,557 --> 00:37:41,758 - Yes, we lost these two there... 648 00:37:52,707 --> 00:37:54,389 I managed to go through, like, 649 00:37:54,390 --> 00:37:57,336 the four gallons of milk that I had in the fridge, but... 650 00:38:00,376 --> 00:38:02,322 - We were just waiting for collisions, 651 00:38:02,323 --> 00:38:03,756 waiting for collisions. 652 00:38:03,757 --> 00:38:07,156 and finally, then this helium leak, 653 00:38:07,157 --> 00:38:11,223 which really, uh... it's really frustrating. 654 00:38:11,223 --> 00:38:16,257 We cannot even go there and investigate what happened. 655 00:38:16,258 --> 00:38:19,422 You have to warm up the magnets, 656 00:38:19,423 --> 00:38:21,991 and warming up the magnets needs to be done 657 00:38:21,992 --> 00:38:26,489 on a very slow pace and... in order not to break them... 658 00:38:26,490 --> 00:38:29,066 then you can investigate and cool them down again. 659 00:38:50,590 --> 00:38:52,724 - The world's largest atom smasher, 660 00:38:52,725 --> 00:38:55,589 the Large Hadron Collider, 661 00:38:55,590 --> 00:38:57,722 is to be shut down for at least two months. 662 00:38:57,723 --> 00:38:59,990 CERN, the European Organization for Nuclear Research... 663 00:38:59,991 --> 00:39:02,655 - Scientists at CERN are trying to put on a brave face. 664 00:39:02,655 --> 00:39:05,656 A faulty electrical connection between two magnets 665 00:39:05,657 --> 00:39:07,222 led to a ton of liquid helium 666 00:39:07,223 --> 00:39:09,990 being leaked into the 27-kilometer tunnel. 667 00:39:09,990 --> 00:39:12,090 The first high-speed particle collisions 668 00:39:12,091 --> 00:39:14,124 were due to take place later this month. 669 00:39:14,125 --> 00:39:15,823 The goal now 670 00:39:15,824 --> 00:39:21,108 is simply to get this vastly complex machine working. 671 00:40:08,457 --> 00:40:10,056 Fucking hell, look at that. 672 00:40:10,057 --> 00:40:12,091 This is just unbelievable. 673 00:40:12,092 --> 00:40:15,257 You've got magnets just sheared off their jacks. 674 00:40:15,258 --> 00:40:17,045 We've actually put in enough energy 675 00:40:17,323 --> 00:40:21,454 to melt it and to vaporize a whole tube of... 676 00:40:21,455 --> 00:40:24,824 - And the stuff's all covered in a sort of black, metallic dust. 677 00:40:24,825 --> 00:40:26,089 Completely catastrophic, eh? 678 00:40:26,090 --> 00:40:27,755 Completely catastrophic. 679 00:40:27,756 --> 00:40:29,722 - There's no more vacuum in the beam vacuum, 680 00:40:29,723 --> 00:40:32,589 so can as well open it up and see whether there's any dust, 681 00:40:32,590 --> 00:40:33,923 because if there's dust, 682 00:40:33,924 --> 00:40:36,055 it means we have to clean all the way 683 00:40:36,056 --> 00:40:37,488 until it's... 684 00:40:37,489 --> 00:40:39,156 I hope, in the worst case, 685 00:40:39,157 --> 00:40:45,266 we have not to take out more than 20 or so magnets. 686 00:40:54,256 --> 00:40:58,456 Both my family and my students 687 00:40:58,457 --> 00:41:02,489 detect a definite level of... 688 00:41:02,490 --> 00:41:05,827 let's say pessimism and disappointment. 689 00:41:08,824 --> 00:41:10,989 The built expectation 690 00:41:10,990 --> 00:41:14,589 that now we were going to know the truth, 691 00:41:14,590 --> 00:41:16,922 it fizzled and delayed, 692 00:41:16,923 --> 00:41:19,327 and it's just, uh... 693 00:41:24,322 --> 00:41:27,226 I thought I was stronger than this. 694 00:41:29,224 --> 00:41:32,288 It surprised me. 695 00:41:32,289 --> 00:41:34,489 - I did say that I thought it was a mistake 696 00:41:34,491 --> 00:41:36,223 for CERN to have this gigantic celebration 697 00:41:36,223 --> 00:41:38,890 for things just when it just had a few protons 698 00:41:38,891 --> 00:41:41,290 wandering around in one direction around the ring, 699 00:41:41,291 --> 00:41:43,724 that it was just a bad idea to have so much hoopla 700 00:41:43,725 --> 00:41:45,422 before anything was actually happening. 701 00:41:45,424 --> 00:41:46,922 At the time when people were asking me 702 00:41:46,923 --> 00:41:48,321 if I was going to CERN to celebrate, 703 00:41:48,322 --> 00:41:49,888 I said, "I'm going to go to CERN 704 00:41:49,890 --> 00:41:51,755 "when there's a reason to celebrate, you know, 705 00:41:51,756 --> 00:41:53,554 "when things are colliding into each other, 706 00:41:53,555 --> 00:41:55,156 "when something is starting to happen, 707 00:41:55,157 --> 00:41:58,089 not for some crappy PR reason." 708 00:41:58,090 --> 00:41:59,656 And that backfired. 709 00:41:59,657 --> 00:42:01,456 That, I think... really, that really backfired, 710 00:42:01,457 --> 00:42:03,391 and I think that was a PR disaster. 711 00:42:03,391 --> 00:42:05,589 It was a PR disaster largely of CERN's own making. 712 00:42:05,590 --> 00:42:07,290 You don't go around, you know, 713 00:42:07,291 --> 00:42:10,024 having gigantic parties before anything has happened. 714 00:42:36,557 --> 00:42:40,256 - So the magnets that have come out are being refurbished, 715 00:42:40,257 --> 00:42:42,122 and so they're sort of trundling through 716 00:42:42,123 --> 00:42:43,822 about six magnets a week now. 717 00:42:43,823 --> 00:42:46,556 So that's no longer the bottleneck. 718 00:42:46,557 --> 00:42:48,588 Now they're kind of getting to the state 719 00:42:48,589 --> 00:42:51,122 where they're ready to start redoing the interconnects 720 00:42:51,123 --> 00:42:52,956 in the tunnel, 721 00:42:52,957 --> 00:42:56,421 and they're already about a week or two behind on that. 722 00:42:56,422 --> 00:42:57,922 Given the complexity... 723 00:42:57,923 --> 00:42:59,590 - The other thing is that they're drilling 724 00:42:59,591 --> 00:43:01,289 these bloody holes in the magnets. 725 00:43:01,290 --> 00:43:03,822 - Because they, like... - what I heard this last time, 726 00:43:03,823 --> 00:43:06,055 they were saying that all their tools are breaking 727 00:43:06,056 --> 00:43:07,489 and that sort of business. 728 00:43:07,490 --> 00:43:08,656 - But it begs the question, of course, 729 00:43:08,657 --> 00:43:10,254 you know, what are the risks? 730 00:43:10,255 --> 00:43:12,054 I mean, you kind of basically, you're going... 731 00:43:12,055 --> 00:43:13,289 I don't know. 732 00:43:13,290 --> 00:43:14,822 We didn't actually think so much 733 00:43:14,823 --> 00:43:16,588 about the collateral effects of the helium. 734 00:43:16,589 --> 00:43:17,823 - Nobody has. - Yeah, nobody. 735 00:43:17,823 --> 00:43:19,322 - Yeah. - Nobody. 736 00:43:19,323 --> 00:43:21,055 Well, there's been a lot of investigations 737 00:43:21,056 --> 00:43:22,655 into the cause of the original problem, 738 00:43:22,657 --> 00:43:24,621 and the general agreement is that we run 739 00:43:24,622 --> 00:43:26,955 at half design energy. 740 00:43:26,956 --> 00:43:30,222 - Experimentalists aren't going to be happy. 741 00:43:30,223 --> 00:43:31,724 Well... 742 00:43:31,725 --> 00:43:34,889 - So, yeah... so the latest schedule is this: 743 00:43:34,890 --> 00:43:36,924 we just put out is D-Day, 744 00:43:36,925 --> 00:43:39,054 beams back on the 21st of September. 745 00:43:39,055 --> 00:43:41,287 Isn't that a bit optimistic? 746 00:43:41,288 --> 00:43:43,922 Isn't that a bit optimistic for, uh, this year? 747 00:43:43,923 --> 00:43:45,922 - When you're dealing with something 748 00:43:45,923 --> 00:43:47,588 that is a long-term project... 749 00:43:47,589 --> 00:43:49,890 and the LHC is a long-term project. 750 00:43:49,891 --> 00:43:52,489 It's a 20-year project. 751 00:43:52,490 --> 00:43:54,389 You can't think about the end. 752 00:43:54,390 --> 00:43:55,828 Ever. 753 00:43:58,824 --> 00:44:01,489 If you start out a marathon thinking, 754 00:44:01,490 --> 00:44:03,389 "I can't wait to get to the finish line; 755 00:44:03,390 --> 00:44:06,221 "I'm gonna have my Gatorade at the finish line; 756 00:44:06,222 --> 00:44:09,388 I'm gonna have my greasy french fries at the finish line," 757 00:44:09,389 --> 00:44:11,622 or whatever motivates you... 758 00:44:11,623 --> 00:44:13,556 if you start thinking that at mile one 759 00:44:13,557 --> 00:44:16,389 and it's, like, ten minutes into the race, 760 00:44:16,390 --> 00:44:18,055 and you're thinking to yourself, 761 00:44:18,056 --> 00:44:20,656 "Wow, I'm only at mile one. 762 00:44:20,657 --> 00:44:26,390 I've got 25.2 miles to go." 763 00:44:26,391 --> 00:44:28,655 And if you're thinking that at the start, 764 00:44:28,656 --> 00:44:29,923 then you're done. 765 00:44:29,924 --> 00:44:31,257 Mentally, you are done. 766 00:44:32,790 --> 00:44:35,103 - This is what doing discovery physics means. 767 00:44:36,089 --> 00:44:38,056 This is what doing discovery means. 768 00:44:59,624 --> 00:45:02,288 Why do people have curiosity? 769 00:45:02,289 --> 00:45:06,723 Why do we care about how distant parts of the universe, 770 00:45:06,724 --> 00:45:08,821 things that happened billion years ago, 771 00:45:08,822 --> 00:45:10,289 like the big bang, 772 00:45:10,290 --> 00:45:11,890 why do we find them that interesting? 773 00:45:11,891 --> 00:45:14,588 It doesn't affect what we do day-to-day. 774 00:45:14,589 --> 00:45:18,256 But nevertheless, once you have curiosity, 775 00:45:18,257 --> 00:45:20,222 you can't control it. 776 00:45:24,123 --> 00:45:26,323 - It'll ask questions about the universe. 777 00:45:26,324 --> 00:45:30,055 It will ask questions about harmonic patterns 778 00:45:30,056 --> 00:45:34,755 that create art, music. 779 00:45:34,756 --> 00:45:36,723 - That's a sculpture? - That's a sculpture. 780 00:45:36,723 --> 00:45:38,790 - Yeah, doesn't it look like a bunch of broken tiles? 781 00:45:38,791 --> 00:45:40,454 - That's what it's supposed to look like. 782 00:45:40,455 --> 00:45:42,288 And it's, uh... and when I saw it, 783 00:45:42,290 --> 00:45:44,590 I thought it was just rubble left over from the construction. 784 00:45:44,591 --> 00:45:45,823 Right, yeah. 785 00:45:45,824 --> 00:45:47,156 - You can, in principle, move it. 786 00:45:47,157 --> 00:45:48,756 - So people go up and move pieces? 787 00:45:48,757 --> 00:45:51,755 - No, people don't. - But people could. 788 00:45:51,756 --> 00:45:53,556 Why would they have it so you can move it around 789 00:45:53,557 --> 00:45:55,089 if you weren't going to move it around? 790 00:45:55,090 --> 00:45:56,556 No, I think you're right. 791 00:45:56,556 --> 00:45:58,221 - I think you're allowed to move it around. 792 00:45:58,222 --> 00:46:00,121 - It's certainly a different experience of it. 793 00:46:00,122 --> 00:46:01,487 I agree. 794 00:46:01,489 --> 00:46:03,421 See, I thought that that belonged here. 795 00:46:03,422 --> 00:46:04,790 It's just... it's the perfect spot. 796 00:46:04,791 --> 00:46:06,222 - It certainly changes everything. 797 00:46:06,223 --> 00:46:08,822 - It does. - Slate and granite. 798 00:46:08,823 --> 00:46:11,954 I guess that's the granite, and that's the slate. 799 00:46:11,955 --> 00:46:13,726 Hmm. 800 00:46:16,724 --> 00:46:19,322 It's interesting. 801 00:46:19,323 --> 00:46:20,990 - There's something philosophically 802 00:46:20,991 --> 00:46:23,656 about this piece of art that bothers me. 803 00:46:23,657 --> 00:46:25,989 It's taking a lot of sort of random things 804 00:46:25,990 --> 00:46:27,288 and making some order out of it. 805 00:46:27,289 --> 00:46:28,821 Yes. 806 00:46:28,822 --> 00:46:30,588 - It's trying to make order out of something 807 00:46:30,589 --> 00:46:32,122 where there isn't any, 808 00:46:32,123 --> 00:46:34,155 instead of taking things that don't seem ordered 809 00:46:34,156 --> 00:46:36,921 and figuring out that there is order. 810 00:46:36,922 --> 00:46:40,557 - The way we try to reduce the complexity of the world 811 00:46:40,558 --> 00:46:44,054 is by looking for patterns, 812 00:46:44,055 --> 00:46:46,322 what we call symmetries. 813 00:46:46,323 --> 00:46:49,622 We take all the particles we know today, 814 00:46:49,623 --> 00:46:51,055 and we attempt to fit them 815 00:46:51,056 --> 00:46:53,054 into some kind of underlying structure. 816 00:46:53,957 --> 00:46:57,390 Are they the remnants of some more beautiful 817 00:46:57,391 --> 00:47:01,591 and complete picture of the laws of nature? 818 00:47:03,589 --> 00:47:08,256 It's like, you go to Egypt, and you see ruins. 819 00:47:08,257 --> 00:47:10,789 If you look at it the right way, 820 00:47:10,790 --> 00:47:11,946 I could draw a pyramid 821 00:47:12,923 --> 00:47:14,955 and see that these chunks of stone 822 00:47:14,956 --> 00:47:18,288 are actually the remains of something very clean 823 00:47:18,290 --> 00:47:19,788 and very symmetric, 824 00:47:19,789 --> 00:47:22,722 very beautiful. 825 00:47:22,723 --> 00:47:26,057 We know that the Standard Model is incomplete. 826 00:47:28,055 --> 00:47:30,288 We know that there's other stuff out there, 827 00:47:30,289 --> 00:47:33,489 that there are other particles that we haven't seen yet. 828 00:47:33,490 --> 00:47:36,589 Dark matter is a speculated particle 829 00:47:36,590 --> 00:47:40,221 which we think actually dominates the universe, 830 00:47:40,222 --> 00:47:42,722 and yet we've never seen it directly, 831 00:47:42,723 --> 00:47:45,422 and it's not part of the Standard Model. 832 00:47:45,423 --> 00:47:48,155 That's one of those rocks. 833 00:47:48,156 --> 00:47:50,823 We think, possibly, 834 00:47:50,824 --> 00:47:54,488 that that and many other particles are still out there 835 00:47:54,489 --> 00:47:56,891 and are all part of a much bigger symmetry, 836 00:47:57,890 --> 00:47:59,555 a much bigger theory 837 00:47:59,556 --> 00:48:02,427 that includes the Standard Model, but much more. 838 00:48:08,421 --> 00:48:12,256 The most popular theory is called supersymmetry, 839 00:48:12,257 --> 00:48:14,422 or SUSY for short. 840 00:48:14,423 --> 00:48:18,623 Supersymmetry was a theory that sort of started to develop 841 00:48:18,624 --> 00:48:20,087 in the late '70s. 842 00:48:20,088 --> 00:48:22,654 Savas was one of the first authors 843 00:48:22,655 --> 00:48:26,922 of the first theories of supersymmetry. 844 00:48:26,923 --> 00:48:30,123 - It is the unfathomable depths of... 845 00:48:30,124 --> 00:48:35,990 - Supersymmetry is our best guess of what else is out there, 846 00:48:35,991 --> 00:48:38,089 the bigger theory that incorporates 847 00:48:38,090 --> 00:48:39,656 our current theories, 848 00:48:39,657 --> 00:48:41,955 the Standard Model. 849 00:48:41,956 --> 00:48:44,088 But for it to be true, 850 00:48:44,089 --> 00:48:47,665 we have to discover those other particles. 851 00:48:57,652 --> 00:48:59,755 - If I could choose a dream of any theory 852 00:48:59,756 --> 00:49:01,488 that the LHC could find, 853 00:49:01,489 --> 00:49:04,122 actually, I would love for them to see supersymmetry. 854 00:49:04,123 --> 00:49:10,056 Supersymmetry says, for every type of particle, 855 00:49:10,057 --> 00:49:11,588 say the electron, 856 00:49:11,590 --> 00:49:14,256 there's a heavy superpartner. 857 00:49:14,257 --> 00:49:15,953 So you have the... 858 00:49:15,954 --> 00:49:17,922 and they have really stupid names, unfortunately, 859 00:49:17,923 --> 00:49:19,454 called the selectron. 860 00:49:19,455 --> 00:49:21,654 You just add an S to the name. The squark. 861 00:49:21,655 --> 00:49:25,722 Uh, the sup, the sdown. 862 00:49:25,722 --> 00:49:27,555 Supersymmetry, or SUSY, 863 00:49:27,557 --> 00:49:30,822 is extremely important for the theoretical community 864 00:49:30,823 --> 00:49:33,456 because it solves many mathematical problems 865 00:49:33,457 --> 00:49:35,388 with the Standard model. 866 00:49:35,389 --> 00:49:39,122 Now, experimentally, it would be the experimentalists' dream. 867 00:49:39,123 --> 00:49:42,322 You know, tons of particles that are just coming out, 868 00:49:42,323 --> 00:49:44,154 and you just don't even know what to do with... 869 00:49:44,155 --> 00:49:45,988 you know, can't even write the data fast enough 870 00:49:45,989 --> 00:49:47,321 in order to discover them. 871 00:49:47,322 --> 00:49:50,592 So that'd be my dream. 872 00:49:53,394 --> 00:49:55,655 It used to be that in the control room life, 873 00:49:55,656 --> 00:49:56,955 it was kind of a luxury. 874 00:49:56,956 --> 00:49:58,787 You know, you could kind of... 875 00:49:58,788 --> 00:50:00,820 you could, you know, kind of style your hair for the day 876 00:50:00,822 --> 00:50:02,954 because you didn't have to wear a hard helmet all day. 877 00:50:02,955 --> 00:50:04,656 You could wear nice shoes, you know, 878 00:50:04,657 --> 00:50:06,724 because you were in the control room environment. 879 00:50:06,725 --> 00:50:09,389 Now, it's all back to, you know, 880 00:50:09,390 --> 00:50:11,556 bring the dirtiest clothes that you own to work 881 00:50:11,757 --> 00:50:14,054 because you're gonna be crawling around in, like, 882 00:50:14,055 --> 00:50:15,755 you know, hard helmets, steel-toed boots. 883 00:50:15,756 --> 00:50:17,121 Not the most attractive shoes, 884 00:50:17,122 --> 00:50:18,909 but, you know, I kind of like them. 885 00:50:21,556 --> 00:50:23,389 We're pulling out the electronics. 886 00:50:23,390 --> 00:50:25,488 We're fixing things that we didn't actually have time 887 00:50:25,489 --> 00:50:28,656 to get to during the last shutdown. 888 00:50:28,656 --> 00:50:30,754 The goal of this is that it would be 889 00:50:30,755 --> 00:50:34,126 in even better shape for next beam. 890 00:50:37,122 --> 00:50:43,622 Okay, so that is, I think, all that I have to say. 891 00:50:43,623 --> 00:50:47,388 Hope the theorists aren't driving you crazy. 892 00:50:47,389 --> 00:50:49,721 Don't listen to them, by the way, 893 00:50:49,722 --> 00:50:51,654 because theorists, 894 00:50:51,655 --> 00:50:55,556 they can sometimes... 895 00:50:56,556 --> 00:50:58,155 Just telling you. 896 00:50:58,156 --> 00:50:59,921 You got to come back to the experimental world 897 00:50:59,922 --> 00:51:04,056 so that you can touch bases with reality. 898 00:51:04,057 --> 00:51:07,090 All right, I'll talk to you soon. 899 00:51:11,316 --> 00:51:13,788 - One of the most basic facts about the universe 900 00:51:13,789 --> 00:51:14,989 is that it's big. 901 00:51:14,990 --> 00:51:17,487 So you might wonder, 902 00:51:17,488 --> 00:51:21,321 "Why is the universe big?" 903 00:51:21,322 --> 00:51:23,388 There's actually a single number, 904 00:51:23,389 --> 00:51:24,988 called the cosmological constant, 905 00:51:24,989 --> 00:51:27,056 that plays a crucial role 906 00:51:27,057 --> 00:51:29,621 in determining what the universe looks like. 907 00:51:29,622 --> 00:51:32,389 In fact, around ten years ago, 908 00:51:32,390 --> 00:51:35,221 astronomers discovered a really remarkable fact: 909 00:51:35,222 --> 00:51:38,121 the universe is getting bigger and bigger 910 00:51:38,122 --> 00:51:40,557 at a faster and faster rate. 911 00:51:42,555 --> 00:51:45,955 But this rate is a million, billion, 912 00:51:45,956 --> 00:51:50,587 billion, billion, billion, billion, billion times slower 913 00:51:50,588 --> 00:51:52,824 than what we'd actually predict. 914 00:51:54,422 --> 00:51:56,990 When you're off by a factor of a million, billion, 915 00:51:56,991 --> 00:51:59,156 billion, billion, billion, billion, billion, 916 00:51:59,158 --> 00:52:00,823 there's something very wrong 917 00:52:00,824 --> 00:52:05,088 with your understanding of basic physics. 918 00:52:05,089 --> 00:52:06,554 Even worse, 919 00:52:06,555 --> 00:52:08,588 this one number, the cosmological constant, 920 00:52:08,589 --> 00:52:10,920 needs to have this extremely precise value. 921 00:52:10,921 --> 00:52:14,054 And if the value is different even by a tiny bit, 922 00:52:14,054 --> 00:52:17,491 we would radically change what the world looks like around us. 923 00:52:20,488 --> 00:52:22,722 If you saw a situation where, 924 00:52:22,723 --> 00:52:25,088 if the parameter has a very dangerous value 925 00:52:25,089 --> 00:52:27,122 and you change it a little bit, 926 00:52:27,123 --> 00:52:28,488 the world would change radically, 927 00:52:28,489 --> 00:52:29,754 and we'd be dead. 928 00:52:29,755 --> 00:52:31,622 We couldn't possibly live. 929 00:52:31,622 --> 00:52:33,453 You would wonder where that came from. 930 00:52:33,454 --> 00:52:35,954 You know, how is that possible? 931 00:52:35,955 --> 00:52:37,555 So just on the face of it, 932 00:52:37,557 --> 00:52:39,389 you would look at the situation and say, 933 00:52:39,390 --> 00:52:42,621 "Wow, someone really cared to put this parameter 934 00:52:42,622 --> 00:52:45,121 "at just the right value so that we get to be here 935 00:52:45,122 --> 00:52:47,256 "and that it's a pleasant universe 936 00:52:47,257 --> 00:52:50,490 and really cares a lot." 937 00:52:52,488 --> 00:52:55,659 This is the sort of thing that really keeps you up at night. 938 00:52:57,257 --> 00:52:59,822 It really makes you wonder, "Maybe we've got something 939 00:52:59,823 --> 00:53:01,988 "about the whole picture, the big picture, 940 00:53:01,989 --> 00:53:03,673 totally, totally, totally wrong." 941 00:53:19,556 --> 00:53:22,255 - Before I went to elementary school, 942 00:53:22,256 --> 00:53:27,420 my mother started telling me biblical stories. 943 00:53:27,421 --> 00:53:29,655 She told me that if we are good, 944 00:53:29,656 --> 00:53:31,320 we'll go to paradise, 945 00:53:31,321 --> 00:53:33,825 and we will stay there forever. 946 00:53:35,822 --> 00:53:38,553 And when she said "forever," 947 00:53:38,554 --> 00:53:41,988 I started panicking. 948 00:53:41,989 --> 00:53:43,487 I kept asking, "Forever?" 949 00:53:43,488 --> 00:53:44,753 "Forever?" 950 00:53:44,754 --> 00:53:46,454 You mean, it never ends? 951 00:53:46,455 --> 00:53:49,089 Like, you wake up, and you know that then, 952 00:53:49,090 --> 00:53:50,420 you go back to sleep, 953 00:53:50,421 --> 00:53:52,655 and this never ends, never ends, 954 00:53:52,656 --> 00:53:54,127 never ends. 955 00:53:58,122 --> 00:54:00,121 I started crying. 956 00:54:00,122 --> 00:54:01,788 She told me, "What's wrong with you? 957 00:54:01,789 --> 00:54:03,054 "This is paradise. 958 00:54:03,055 --> 00:54:05,420 "It will be a lot of fun. 959 00:54:05,421 --> 00:54:06,997 You'll be very happy there." 960 00:54:15,989 --> 00:54:19,154 But this idea of eternity, 961 00:54:19,155 --> 00:54:21,989 something infinite, 962 00:54:21,990 --> 00:54:24,288 scared me. 963 00:54:47,823 --> 00:54:49,722 - There is a scientific alternative 964 00:54:49,723 --> 00:54:52,122 to believing there's someone out there who loves us, 965 00:54:52,123 --> 00:54:55,787 twiddling the dials very finely for things to work out. 966 00:54:55,788 --> 00:54:58,220 And this alternative, said briefly, 967 00:54:58,221 --> 00:55:00,655 is that everything we see in our observed universe 968 00:55:00,656 --> 00:55:02,820 is actually a very small part 969 00:55:02,821 --> 00:55:06,954 of a much, much vaster multiverse. 970 00:55:06,955 --> 00:55:08,722 You might literally imagine that, 971 00:55:08,723 --> 00:55:10,487 from some bird's eye point of view, 972 00:55:10,488 --> 00:55:13,321 if you went to enormous distances, 973 00:55:13,322 --> 00:55:15,955 you would see that our universe is actually a little pocket 974 00:55:15,956 --> 00:55:19,392 inside a vastly bigger space. 975 00:55:22,389 --> 00:55:25,155 In this picture, these mysterious numbers, 976 00:55:25,156 --> 00:55:26,887 like the cosmological constant, 977 00:55:26,888 --> 00:55:30,124 are actually basically random. 978 00:55:32,122 --> 00:55:35,720 And out there in the multiverse, next to us somewhere, 979 00:55:35,721 --> 00:55:38,721 is another region where these numbers take on 980 00:55:38,723 --> 00:55:39,953 some other random value, 981 00:55:39,954 --> 00:55:41,621 and then another region 982 00:55:41,622 --> 00:55:43,822 where they take on some other random value still. 983 00:55:43,823 --> 00:55:46,555 Only in a tiny sliver, a minuscule part 984 00:55:46,556 --> 00:55:48,256 of this gigantic multiverse, 985 00:55:48,257 --> 00:55:50,653 for completely accidental reasons, 986 00:55:50,654 --> 00:55:53,420 do these numbers take on the very, very special values 987 00:55:53,421 --> 00:55:55,119 which allows structures to grow, 988 00:55:55,120 --> 00:55:58,721 stars to form, galaxies to form. 989 00:55:58,722 --> 00:56:00,593 Ultimately, things like us to form. 990 00:56:03,589 --> 00:56:07,420 This is the really opposite extreme interpretation 991 00:56:07,421 --> 00:56:09,555 of the presence of fine-tuning 992 00:56:09,556 --> 00:56:12,989 as intelligent designers would want to give. 993 00:56:12,990 --> 00:56:15,420 If you believe that someone out there cares 994 00:56:15,421 --> 00:56:18,287 and twiddles the parameters so that you can exist, 995 00:56:18,288 --> 00:56:21,889 that puts our existence at the very core of reality. 996 00:56:21,889 --> 00:56:24,754 If you believe that our entire universe 997 00:56:24,755 --> 00:56:27,321 is a tiny, little, minuscule spec 998 00:56:27,321 --> 00:56:30,288 in a gigantic multiverse which is mostly lethal, 999 00:56:30,289 --> 00:56:32,454 that's a polar opposite philosophy 1000 00:56:32,455 --> 00:56:36,155 for what the universe looks like. 1001 00:56:36,156 --> 00:56:39,621 In fact, it's an idea that many physicists loathe, 1002 00:56:39,622 --> 00:56:41,954 because certain questions then become things 1003 00:56:41,955 --> 00:56:45,325 that we will not hope to be able to understand. 1004 00:56:47,322 --> 00:56:51,120 - Nima is now an advocate for this idea 1005 00:56:51,121 --> 00:56:53,388 that the laws of physics are different 1006 00:56:53,389 --> 00:56:56,454 in different parts of this multiverse, 1007 00:56:56,455 --> 00:56:59,455 that what we measure in experiments 1008 00:56:59,456 --> 00:57:02,955 are not deep mysteries of nature, 1009 00:57:02,956 --> 00:57:06,288 but they're just random accidents in our universe, 1010 00:57:06,289 --> 00:57:08,554 that maybe even the Higgs itself 1011 00:57:08,555 --> 00:57:11,586 is a random accident that has occurred in our universe 1012 00:57:11,588 --> 00:57:15,154 and let's life exist, but has no explanation. 1013 00:57:18,220 --> 00:57:21,092 In a sense, it's the end of physics. 1014 00:57:24,088 --> 00:57:26,486 - On the one hand, we have the direction 1015 00:57:26,487 --> 00:57:28,921 that we've been on for the last 400 years, 1016 00:57:28,922 --> 00:57:34,053 towards increasing beauty, simplicity, symmetry, 1017 00:57:34,054 --> 00:57:36,622 and a path that has time and time again 1018 00:57:36,623 --> 00:57:38,888 paid off with deeper and deeper insights 1019 00:57:38,889 --> 00:57:40,562 about the way the world works. 1020 00:57:46,553 --> 00:57:50,553 On the other hand, we have the idea of the multiverse, 1021 00:57:50,555 --> 00:57:53,554 which would move us to a real picture 1022 00:57:53,555 --> 00:57:56,788 not of symmetry and beauty and order, 1023 00:57:56,789 --> 00:58:01,792 but fundamentally of chaos on enormous distances. 1024 00:58:04,788 --> 00:58:08,722 This is the really very, very big-scale question 1025 00:58:08,723 --> 00:58:10,563 which the LHC is going to push us in 1026 00:58:11,255 --> 00:58:14,103 one way or the other. 1027 00:58:34,253 --> 00:58:35,989 - What happens, for example, if... 1028 00:58:35,991 --> 00:58:37,256 Oh, blimey. 1029 00:58:37,257 --> 00:58:38,888 Yeah, there's a lot of... 1030 00:58:38,889 --> 00:58:41,093 Hi, Katja. You all right? 1031 00:58:47,788 --> 00:58:49,788 Oh, you're not recording this, huh? 1032 00:58:49,789 --> 00:58:51,156 Yes, we're all on the... 1033 00:59:00,487 --> 00:59:02,801 - Yeah, don't worry about all the other crap. 1034 00:59:06,288 --> 00:59:08,721 We've got the beams going around again. 1035 00:59:08,722 --> 00:59:10,420 The magnet repairs are holding up well, 1036 00:59:10,421 --> 00:59:12,387 and our next challenge is to take these beams 1037 00:59:12,388 --> 00:59:13,754 up to high energy and collide them. 1038 00:59:13,755 --> 00:59:15,255 Okay. 1039 00:59:15,256 --> 00:59:18,221 - We're very, very aware of the damage we can do. 1040 00:59:18,222 --> 00:59:19,887 Here we go. 1041 00:59:19,888 --> 00:59:23,265 - That's what worries me stiff at the moment. 1042 00:59:33,256 --> 00:59:38,821 - The original proposal for ATLAS was in 1989. 1043 00:59:38,822 --> 00:59:40,821 And you're kind of riding this idea. 1044 00:59:40,822 --> 00:59:43,487 You've got this dream of physics. 1045 00:59:43,488 --> 00:59:45,554 This dream of physics is what pulled everyone along 1046 00:59:45,555 --> 00:59:46,555 for those 19 years. 1047 00:59:47,155 --> 00:59:50,654 And so here, now, today, finally, 1048 00:59:50,655 --> 00:59:53,121 with high-energy collisions, 1049 00:59:53,122 --> 00:59:58,255 we can start to look for that dream of new physics. 1050 00:59:58,256 --> 00:59:59,156 Uh, blue. 1051 01:00:00,155 --> 01:00:03,052 The control room, yes. 1052 01:00:03,053 --> 01:00:04,320 The control room. 1053 01:00:04,321 --> 01:00:05,728 This is the control room. 1054 01:00:12,721 --> 01:00:17,087 - The pressure of it being an event, of course, is there. 1055 01:00:17,088 --> 01:00:20,787 And, of course, anything can go wrong, and it has. 1056 01:00:20,788 --> 01:00:23,821 Last weekend was a complete disaster. 1057 01:00:23,822 --> 01:00:25,254 We were discussing the possibility 1058 01:00:25,255 --> 01:00:27,587 that we do collisions during the night 1059 01:00:27,588 --> 01:00:30,388 rather than the plan, 9:00 in the morning. 1060 01:00:30,389 --> 01:00:33,319 Of course, this has caused major, 1061 01:00:33,320 --> 01:00:35,887 sort of knock-ons for, one, the experiments, 1062 01:00:35,888 --> 01:00:38,977 and two, for the media service. 1063 01:01:01,955 --> 01:01:03,387 Good morning, everybody. 1064 01:01:03,388 --> 01:01:04,920 I propose we start. 1065 01:01:04,921 --> 01:01:06,655 I will take you briefly over the whole summary 1066 01:01:06,656 --> 01:01:08,120 of the weekend, 1067 01:01:08,120 --> 01:01:10,220 just to get you up to date what happened. 1068 01:01:10,221 --> 01:01:11,987 During the night, we tried to set up again 1069 01:01:11,988 --> 01:01:13,254 for high intensities, 1070 01:01:13,255 --> 01:01:14,787 for 450 GeV collisions, 1071 01:01:14,788 --> 01:01:16,255 but then we were cut short 1072 01:01:16,256 --> 01:01:18,419 because we encountered a vacuum. 1073 01:01:18,420 --> 01:01:22,155 - What everybody wants, from a physics point of view 1074 01:01:22,156 --> 01:01:23,454 and from being sure, 1075 01:01:23,455 --> 01:01:25,454 is doing it secretly before 1076 01:01:25,455 --> 01:01:27,487 and showing it to the media during the day. 1077 01:01:27,488 --> 01:01:29,619 And I think this was also the wish of Fabiola. 1078 01:01:29,620 --> 01:01:31,586 It's the wish of everybody, 1079 01:01:31,587 --> 01:01:33,887 because this is, of course, then you're much more certain. 1080 01:01:33,888 --> 01:01:36,585 But this does not work nowadays. 1081 01:01:36,587 --> 01:01:38,220 Media wants to see this little risk. 1082 01:01:38,221 --> 01:01:39,720 I understand. 1083 01:01:39,720 --> 01:01:42,155 So that means we have to adapt to that. 1084 01:01:42,156 --> 01:01:43,056 Let's see. 1085 01:01:44,054 --> 01:01:47,587 This... this is not it. 1086 01:01:47,588 --> 01:01:48,955 It doesn't seem like... 1087 01:01:48,955 --> 01:01:50,454 You got to hit the reload. 1088 01:01:50,455 --> 01:01:52,887 I'm reloading it. 1089 01:01:52,888 --> 01:01:55,752 Yeah, I wonder if we should stop. 1090 01:01:55,753 --> 01:01:57,554 Everyone is reloading it. 1091 01:01:57,554 --> 01:01:59,290 Maybe we should stop. 1092 01:02:01,288 --> 01:02:02,554 There you go. 1093 01:02:02,555 --> 01:02:04,654 - Hey! - All right. 1094 01:02:04,655 --> 01:02:06,756 Okay, now. 1095 01:02:08,754 --> 01:02:10,620 And, indeed, welcome to CERN, 1096 01:02:10,621 --> 01:02:12,620 the European Organization for Nuclear Research, 1097 01:02:12,621 --> 01:02:13,919 in Geneva. 1098 01:02:13,920 --> 01:02:15,722 Welcome to the CERN control center. 1099 01:02:43,755 --> 01:02:45,287 And here on the screen 1100 01:02:45,288 --> 01:02:47,386 we can see the four different experiments: 1101 01:02:47,387 --> 01:02:51,753 ATLAS, CMS, LHCb, and ALICE. 1102 01:02:51,754 --> 01:02:55,954 And the program for today is to first send one beam 1103 01:02:55,955 --> 01:02:58,821 in one direction, a second beam in the opposite direction. 1104 01:02:58,822 --> 01:03:01,720 They will circulate in parallel for a while, 1105 01:03:01,721 --> 01:03:04,752 and when everything is ready and under control, 1106 01:03:04,753 --> 01:03:06,454 the separation is going to be removed, 1107 01:03:06,455 --> 01:03:09,621 and the beams are going to be made to collide 1108 01:03:09,622 --> 01:03:12,386 in the four points around the LHC machine. 1109 01:03:12,387 --> 01:03:14,386 - I just think to myself, if you imagine, like, 1110 01:03:14,387 --> 01:03:16,453 Thomas Edison, like, inventing the lightbulb... 1111 01:03:16,454 --> 01:03:18,588 if he had tried to invent the lightbulb with, like, 1112 01:03:18,589 --> 01:03:20,453 a hundred camera crews in his workshop, 1113 01:03:20,454 --> 01:03:22,119 and they would've been like, "Oh, my God, 1114 01:03:22,120 --> 01:03:23,418 "you can't even turn it on? 1115 01:03:23,419 --> 01:03:24,786 "Come on! Turn it on now! 1116 01:03:24,787 --> 01:03:26,620 "Come... ugh, we're still waiting? 1117 01:03:26,621 --> 01:03:28,719 Come on. Ah, come on. What's wrong with this guy?" 1118 01:03:28,720 --> 01:03:34,620 - So the violet... there's always one vertical, horizontal beam. 1119 01:03:34,621 --> 01:03:36,055 One beam. 1120 01:03:39,389 --> 01:03:40,788 Shh! 1121 01:03:42,088 --> 01:03:43,419 Please. 1122 01:03:43,420 --> 01:03:45,220 So a few minutes. 1123 01:03:45,221 --> 01:03:46,063 Okay, thank you. 1124 01:03:46,922 --> 01:03:48,492 Thank you, bye. 1125 01:03:53,488 --> 01:03:54,753 Wow. 1126 01:03:54,754 --> 01:03:56,293 Everybody hear? 1127 01:04:02,286 --> 01:04:05,620 Few minutes away. 1128 01:04:05,622 --> 01:04:09,120 - So we should watch that one, our trigger rate, 1129 01:04:09,121 --> 01:04:11,654 this one, the separation bumps, and the event displays. 1130 01:04:11,655 --> 01:04:13,421 Okay, these are the three screens to watch. 1131 01:04:13,422 --> 01:04:15,154 If you have three eyes, one there, one here, 1132 01:04:15,155 --> 01:04:18,386 and one over there. 1133 01:04:18,387 --> 01:04:21,154 - So, okay, both beams are at 3.5 TeV, 1134 01:04:21,155 --> 01:04:24,052 and we've just collapsed the separation bumps 1135 01:04:24,053 --> 01:04:25,653 and brought the beams into collision 1136 01:04:25,654 --> 01:04:26,986 inside the four experiments. 1137 01:04:26,987 --> 01:04:28,288 - Starting. - They're starting. 1138 01:04:28,289 --> 01:04:29,920 They're starting. 1139 01:04:29,921 --> 01:04:32,587 - Oh. - Ooh. 1140 01:04:34,888 --> 01:04:36,219 Okay, they're starting. 1141 01:04:36,220 --> 01:04:38,553 - Two beams, one in blue, one in red, 1142 01:04:38,554 --> 01:04:42,421 each circulating in opposite directions. 1143 01:04:42,422 --> 01:04:44,953 They have to get closer and closer. 1144 01:04:44,954 --> 01:04:48,787 When the numbers on the four readers say zero, 1145 01:04:48,787 --> 01:04:51,922 it means that the beams are finally aligned. 1146 01:05:12,288 --> 01:05:14,969 This is the historical moment we were all expecting. 1147 01:05:15,821 --> 01:05:18,457 It can be anytime now. 1148 01:06:19,420 --> 01:06:22,419 Wow! Wow! 1149 01:06:22,420 --> 01:06:23,654 Fantastic! 1150 01:06:23,655 --> 01:06:25,620 Beautiful. 1151 01:06:25,621 --> 01:06:28,889 - Wow. - We are ready. 1152 01:06:38,888 --> 01:06:40,153 First things first. 1153 01:06:40,154 --> 01:06:43,720 I just have to say: "data." 1154 01:06:43,721 --> 01:06:48,888 It's... it's unbelievable how fantastic data is. 1155 01:07:08,059 --> 01:07:09,585 You have this invariant mass. 1156 01:07:09,586 --> 01:07:11,386 This is for the Z to mu-mu channel. 1157 01:07:11,387 --> 01:07:13,153 And you have this mass peak of the Z, 1158 01:07:13,155 --> 01:07:15,130 in order to estimate your backgrounds. 1159 01:07:24,121 --> 01:07:28,986 It's like the world at ATLAS and LHC and CMS 1160 01:07:28,987 --> 01:07:30,819 and all those places has suddenly changed. 1161 01:07:30,820 --> 01:07:33,287 I mean, it's like, all of a sudden, there's data. 1162 01:07:33,288 --> 01:07:35,220 And after so many years of not having data 1163 01:07:35,220 --> 01:07:36,585 and new data, new physics, 1164 01:07:36,586 --> 01:07:38,219 there's just so much possibility, 1165 01:07:38,220 --> 01:07:39,819 and even though you're rediscovering 1166 01:07:39,820 --> 01:07:41,751 the Standard Model, that is more exciting. 1167 01:07:41,752 --> 01:07:43,952 But the most exciting thing about the data 1168 01:07:43,954 --> 01:07:45,818 is not the first collision. 1169 01:07:45,819 --> 01:07:47,552 Because the first collision, okay, great. 1170 01:07:47,553 --> 01:07:50,118 First collision, everyone loves the first. 1171 01:07:50,119 --> 01:07:53,087 But the most exciting thing about the data is the, you know, 1172 01:07:53,088 --> 01:07:55,121 1 millionth collision or the 2 millionth collision 1173 01:07:55,122 --> 01:07:57,287 or the fact that collisions just keep coming and coming 1174 01:07:57,288 --> 01:07:58,821 and coming and coming, 1175 01:07:58,822 --> 01:08:00,821 and the more and more collisions we have, 1176 01:08:00,822 --> 01:08:02,453 the more and more chance we have 1177 01:08:02,454 --> 01:08:04,284 to look at the interesting physics, 1178 01:08:04,285 --> 01:08:07,453 because it just means more and more and more data for us. 1179 01:08:07,454 --> 01:08:08,886 The running is pretty good. 1180 01:08:08,887 --> 01:08:10,918 - But right now, it's running amazingly. 1181 01:08:10,919 --> 01:08:12,453 Yeah, right now, 1182 01:08:12,454 --> 01:08:14,252 but the day of reckoning is in several months. 1183 01:08:14,253 --> 01:08:15,754 We heard rumors on that. 1184 01:08:15,755 --> 01:08:17,320 - Well, we should be hearing rumors now. 1185 01:08:17,321 --> 01:08:18,953 We really should be hearing rumors now. 1186 01:08:18,954 --> 01:08:20,287 - I'm a little worried, actually. 1187 01:08:20,288 --> 01:08:21,987 Yeah. 1188 01:08:21,988 --> 01:08:23,921 - Well, we're hearing murmurs. - What, what's... 1189 01:08:23,922 --> 01:08:25,320 Murmurs. We're hearing murmurs. 1190 01:08:25,321 --> 01:08:27,086 There either... there isn't much there, 1191 01:08:27,087 --> 01:08:29,154 or they're doing a very good job keeping a poker face. 1192 01:08:29,155 --> 01:08:30,987 - Or they're still at the point where half of... 1193 01:08:30,988 --> 01:08:32,620 where they're still trying to figure out 1194 01:08:32,621 --> 01:08:34,485 what's a murmur and what's a rumor, internally. 1195 01:08:34,486 --> 01:08:36,319 And I think that's probably actually true. 1196 01:08:36,320 --> 01:08:37,587 Right. 1197 01:08:37,588 --> 01:08:38,885 The problem is that, also, 1198 01:08:38,886 --> 01:08:40,585 I take completely innocent remarks 1199 01:08:40,586 --> 01:08:42,418 and vastly over-interpret them. 1200 01:08:42,419 --> 01:08:44,785 - Obviously, we're going to learn about the first discovery 1201 01:08:44,787 --> 01:08:46,386 on Twitter and Facebook. 1202 01:08:46,386 --> 01:08:47,886 - That's so sad, but I think it's true. 1203 01:08:47,887 --> 01:08:49,385 It is. 1204 01:08:49,386 --> 01:08:51,219 - You mean, I shouldn't check the arXiv 1205 01:08:51,220 --> 01:08:53,420 first thing in the morning... I need to check my Facebook? 1206 01:08:53,421 --> 01:08:55,553 - The arXiv is the last thing. - The arXiv is the last... 1207 01:08:55,554 --> 01:08:57,254 - First, like, check Nima's Twitter feed. 1208 01:08:57,254 --> 01:08:58,586 Then check the arXiv. 1209 01:08:58,587 --> 01:09:00,319 If Nima has a Twitter feed, 1210 01:09:00,320 --> 01:09:02,528 then there's something has been discovered. 1211 01:09:04,154 --> 01:09:09,052 It is August 7, 2011, 1212 01:09:09,053 --> 01:09:15,153 and, this is a significant time for the LHC. 1213 01:09:15,154 --> 01:09:17,419 The first big set of data 1214 01:09:17,420 --> 01:09:21,719 was presented at the end of July. 1215 01:09:21,720 --> 01:09:26,087 The data has little extra bits in it 1216 01:09:26,088 --> 01:09:29,487 which could be interpreted as a Higgs. 1217 01:09:29,487 --> 01:09:32,752 Even though the LHC is running at half power, 1218 01:09:32,752 --> 01:09:35,919 it actually has gotten data much, much faster 1219 01:09:35,919 --> 01:09:37,786 than anybody expected. 1220 01:09:37,787 --> 01:09:42,153 And that allowed them to be sensitive to the Higgs boson. 1221 01:09:42,154 --> 01:09:43,985 It's fucking cool right now. 1222 01:09:43,986 --> 01:09:45,885 There was huge excitement 1223 01:09:45,886 --> 01:09:48,719 because the Higgs' results of the two main detectors, 1224 01:09:48,720 --> 01:09:50,620 CMS and ATLAS, were first shown, 1225 01:09:50,621 --> 01:09:52,953 together, in the same meeting. 1226 01:09:52,954 --> 01:09:54,787 For me, as Run Coordinator, 1227 01:09:54,788 --> 01:09:56,355 I discussed every little problem 1228 01:09:56,555 --> 01:09:58,286 where we lost here a little bit of data 1229 01:09:58,287 --> 01:09:59,919 and there a little bit of data, 1230 01:09:59,920 --> 01:10:04,118 so somehow I really feel attached to this data set. 1231 01:10:04,119 --> 01:10:07,954 So somehow it makes me proud if the Higgs is found 1232 01:10:07,955 --> 01:10:09,555 or not with this data set. 1233 01:10:10,555 --> 01:10:12,952 - The three, two, ones, so the effect... 1234 01:10:12,953 --> 01:10:16,419 - The mass of the Higgs, namely the weight of the Higgs, 1235 01:10:16,420 --> 01:10:18,986 can actually tell us or give us a hint 1236 01:10:18,987 --> 01:10:20,320 about what comes next. 1237 01:10:20,321 --> 01:10:25,586 If the mass is on the lighter side, 1238 01:10:25,587 --> 01:10:28,887 then that's consistent with some of the standard things 1239 01:10:28,887 --> 01:10:30,286 we've been looking for. 1240 01:10:30,288 --> 01:10:33,619 Supersymmetry generally favors 1241 01:10:33,620 --> 01:10:35,719 that the Higgs is as light as possible. 1242 01:10:35,720 --> 01:10:38,753 About 115 times the mass of the proton. 1243 01:10:38,754 --> 01:10:40,919 It's 115 GeV: 1244 01:10:40,920 --> 01:10:42,888 Giga electron volts. 1245 01:10:42,889 --> 01:10:47,285 If, on the other hand, the Higgs is 140 GeV, 1246 01:10:47,286 --> 01:10:49,952 140 times the mass of the proton, 1247 01:10:49,953 --> 01:10:51,058 it's a terrible mass, 1248 01:10:51,487 --> 01:10:56,052 because 140 GeV is associated with theories 1249 01:10:56,053 --> 01:10:58,418 that rely on the multiverse. 1250 01:10:58,419 --> 01:11:01,251 ATLAS has a little bump here, 1251 01:11:01,252 --> 01:11:04,386 a small excess visible near 140. 1252 01:11:04,387 --> 01:11:06,420 And now, holy crap. 1253 01:11:06,421 --> 01:11:08,285 It's 140! 1254 01:11:08,286 --> 01:11:11,385 It's starting to look like nature has made its choice. 1255 01:11:11,386 --> 01:11:13,619 - What do we learn if the LHC does discover 1256 01:11:13,620 --> 01:11:15,719 a Higgs at 140 and nothing else? 1257 01:11:15,721 --> 01:11:17,985 Chaos. Okay? 1258 01:11:17,986 --> 01:11:19,618 - The problem with the multiverse 1259 01:11:19,620 --> 01:11:21,086 is that it says the Higgs 1260 01:11:21,087 --> 01:11:23,454 might be the last particle we ever see. 1261 01:11:24,453 --> 01:11:27,585 - So what we should do... - I think the Higgs mass issue... 1262 01:11:27,586 --> 01:11:30,554 - If we don't see any new particles besides the Higgs, 1263 01:11:30,554 --> 01:11:33,384 we don't get any explanation for dark matter. 1264 01:11:33,385 --> 01:11:36,787 We don't know how the Higgs itself got a mass. 1265 01:11:36,788 --> 01:11:41,253 We never get access to the deeper theory. 1266 01:11:41,254 --> 01:11:43,121 All that information 1267 01:11:43,122 --> 01:11:46,257 could be in the other universes. 1268 01:11:48,255 --> 01:11:51,951 We may be at the end of the road. 1269 01:11:51,952 --> 01:11:54,321 That's it. 1270 01:11:56,319 --> 01:12:00,822 I guess, um... 1271 01:12:01,821 --> 01:12:05,986 Well, if it's right at that number, 1272 01:12:05,987 --> 01:12:07,985 then it would be so fucking astounding. 1273 01:12:08,419 --> 01:12:10,452 Where the F is SUSY, right? 1274 01:12:10,453 --> 01:12:11,919 I mean, there's nothing. 1275 01:12:11,920 --> 01:12:13,318 I mean, where's all the other stuff? 1276 01:12:13,319 --> 01:12:14,719 Where are the other particles? 1277 01:12:14,720 --> 01:12:16,553 What happened to dark matter? I mean... 1278 01:12:16,553 --> 01:12:18,385 - I've heard of many theories saying that new particles 1279 01:12:18,386 --> 01:12:19,651 might be at even higher energies, so... 1280 01:12:19,652 --> 01:12:21,320 Right. 1281 01:12:21,321 --> 01:12:23,553 - Who knows? I mean, it always comes differently. 1282 01:12:23,554 --> 01:12:25,219 Who knows if there are other interesting things. 1283 01:12:25,220 --> 01:12:26,752 You know, somehow it always comes differently 1284 01:12:26,753 --> 01:12:28,418 than you expect. 1285 01:12:28,419 --> 01:12:30,920 - I know that the theorists are all up in arms, 1286 01:12:30,921 --> 01:12:32,652 because, you know, it could be a heavy Higgs, 1287 01:12:32,653 --> 01:12:34,217 but, you know, I've always said, like, 1288 01:12:34,218 --> 01:12:35,587 the worst-case scenario, 1289 01:12:35,588 --> 01:12:37,753 I think, would be Higgs and Higgs only. 1290 01:12:37,754 --> 01:12:39,253 - Who knows? - I know. I know. 1291 01:12:39,254 --> 01:12:40,886 - Come on, it's just a little excess. 1292 01:12:40,888 --> 01:12:42,753 - If this doesn't show up by the end of next year, 1293 01:12:42,754 --> 01:12:44,319 then we can change subject, I think. 1294 01:12:44,320 --> 01:12:46,319 If you don't see any supersymmetric signal... 1295 01:12:46,320 --> 01:12:48,551 - Well, but if it's 140, that would be serious. 1296 01:12:48,552 --> 01:12:49,951 Yeah, yeah. 1297 01:12:49,952 --> 01:12:52,230 Yeah. 1298 01:13:03,220 --> 01:13:05,154 Don't tell me. 1299 01:13:05,155 --> 01:13:06,955 This is my nightmare. 1300 01:13:08,953 --> 01:13:11,788 It's only 30 for me. 1301 01:13:16,086 --> 01:13:17,820 At the moment, it's scary. 1302 01:13:17,821 --> 01:13:19,975 - At the moment, it's scary. - It's scary. 1303 01:13:29,554 --> 01:13:32,752 - Yes, then we have to wait another couple of years 1304 01:13:32,753 --> 01:13:34,890 for the next round. 1305 01:13:36,888 --> 01:13:39,158 No, another two years, I'm saying... 1306 01:13:42,822 --> 01:13:44,452 But still, it doesn't matter. 1307 01:13:44,453 --> 01:13:45,824 You'll be working harder. 1308 01:13:48,707 --> 01:13:50,285 No, but independent of that, 1309 01:13:50,286 --> 01:13:54,753 I think you'll know the truth. 1310 01:13:54,754 --> 01:13:56,486 Yes, yes, no. 1311 01:13:56,487 --> 01:13:58,955 - And that's the important thing. 1312 01:13:59,954 --> 01:14:03,222 No, you're right. Yes, of course. 1313 01:14:06,219 --> 01:14:08,008 - Coffee is a very serious business 1314 01:14:08,287 --> 01:14:10,418 in the life of a theorist. 1315 01:14:10,419 --> 01:14:12,551 It's not like physics research, 1316 01:14:12,552 --> 01:14:14,419 where you can wait for 30 years 1317 01:14:14,420 --> 01:14:19,052 before you know if you are right. 1318 01:14:19,053 --> 01:14:22,986 Within a few minutes, it pays off. 1319 01:14:22,987 --> 01:14:26,288 If you succeed, it's great. 1320 01:14:27,287 --> 01:14:30,219 If you fail, you get to try another one 1321 01:14:30,220 --> 01:14:32,153 in another minute. 1322 01:14:32,154 --> 01:14:34,087 In particle physics, 1323 01:14:34,089 --> 01:14:38,084 you construct a theory 20 years ago, 1324 01:14:38,086 --> 01:14:40,086 and it may take that long 1325 01:14:40,087 --> 01:14:43,118 before you know if you're on the right track. 1326 01:14:43,120 --> 01:14:45,619 Jumping from failure to failure 1327 01:14:45,620 --> 01:14:48,051 with undiminished enthusiasm 1328 01:14:48,052 --> 01:14:52,218 is the big secret to success. 1329 01:14:52,219 --> 01:14:58,553 - Well, the hint that the Higgs was 140 GeV 1330 01:14:58,554 --> 01:15:01,285 has disappeared. 1331 01:15:01,286 --> 01:15:06,419 All of the new data that just came in 1332 01:15:06,420 --> 01:15:08,919 didn't make the peak bigger. 1333 01:15:08,920 --> 01:15:11,719 It sort of filled in the gaps. 1334 01:15:11,720 --> 01:15:15,885 And now the peak doesn't look very good. 1335 01:15:15,886 --> 01:15:20,086 In fact, the belief is that it's gone away 1336 01:15:20,087 --> 01:15:25,420 and that the Higgs can't be 140 GeV. 1337 01:15:25,421 --> 01:15:28,720 In order for us to believe that we've discovered it, 1338 01:15:28,721 --> 01:15:30,420 that peak needs to be big 1339 01:15:30,420 --> 01:15:33,653 and basically keep growing as the data comes in. 1340 01:15:33,654 --> 01:15:36,485 It's a statistical thing. 1341 01:15:36,486 --> 01:15:38,919 We call it the Greek letter "sigma." 1342 01:15:38,920 --> 01:15:42,252 If you reach a height of 5 sigma, 1343 01:15:42,253 --> 01:15:45,651 that's when you know that you've seen something. 1344 01:15:45,652 --> 01:15:49,119 And the probability that that just happens by accident 1345 01:15:49,120 --> 01:15:52,623 is 1 in 31/2 million. 1346 01:15:55,619 --> 01:15:59,485 But the Higgs, it's not at 140, 1347 01:15:59,486 --> 01:16:01,886 which is a bit of a relief, 1348 01:16:01,887 --> 01:16:06,552 because there's still hope it might be down around 115. 1349 01:16:06,553 --> 01:16:08,153 We like 115, 1350 01:16:08,154 --> 01:16:10,552 because if the Higgs is that light, 1351 01:16:10,553 --> 01:16:13,551 the theory says there has to be new particles, 1352 01:16:13,552 --> 01:16:15,451 like supersymmetry, 1353 01:16:15,452 --> 01:16:20,119 otherwise the universe is unstable. 1354 01:16:20,120 --> 01:16:22,922 It wouldn't have survived this long. 1355 01:16:25,219 --> 01:16:29,284 - This is one of the one of the few truly perfect 1356 01:16:29,285 --> 01:16:30,918 academic institutions in the world. 1357 01:16:30,919 --> 01:16:33,219 I mean, there's no excuse... 1358 01:16:33,220 --> 01:16:34,918 no excuse at all... 1359 01:16:34,919 --> 01:16:39,452 not to think and work 1360 01:16:39,453 --> 01:16:41,052 and get things done. 1361 01:16:41,052 --> 01:16:42,385 That's its only problem. 1362 01:16:42,386 --> 01:16:43,985 There's no excuse at all not to think 1363 01:16:43,986 --> 01:16:45,885 and work and get things done. 1364 01:16:45,886 --> 01:16:48,119 You can't blame it on anything if it doesn't work. 1365 01:16:48,120 --> 01:16:52,052 - Okay, supersymmetry versus multiverse. 1366 01:16:52,053 --> 01:16:54,286 Oh, boy. 1367 01:16:57,453 --> 01:16:58,886 All right. 1368 01:16:58,886 --> 01:17:00,385 That's, uh... 1369 01:17:00,386 --> 01:17:01,784 If we're going to start doing that, 1370 01:17:01,785 --> 01:17:03,921 this is going to be interesting. 1371 01:17:05,919 --> 01:17:08,752 We have been anticipating that whatever happens 1372 01:17:08,753 --> 01:17:11,086 is going to throw the field in one direction or another. 1373 01:17:11,087 --> 01:17:13,886 Oh, shit! 1374 01:17:13,887 --> 01:17:15,585 Now that we're really on the doorstep 1375 01:17:15,586 --> 01:17:18,486 of actually knowing the actual number, 1376 01:17:18,487 --> 01:17:22,754 I really care intensely about what that number is. 1377 01:17:36,219 --> 01:17:38,252 Well, faster than we thought, 1378 01:17:38,253 --> 01:17:41,153 there's news that there's going to be another announcement 1379 01:17:41,154 --> 01:17:43,418 about the Higgs. 1380 01:17:43,419 --> 01:17:45,153 I've heard tons of rumors, 1381 01:17:45,154 --> 01:17:47,052 and I've heard they're things on blogs, 1382 01:17:47,053 --> 01:17:49,819 and there's already stuff in the newspaper. 1383 01:17:49,820 --> 01:17:52,417 - 18 hours or so until the announcement, 1384 01:17:52,418 --> 01:17:56,552 so I'm really looking forward to what they're going to say, 1385 01:17:56,553 --> 01:17:58,785 and I want to be there. 1386 01:17:58,786 --> 01:18:01,418 Actually, I'm thinking of going early in the morning, 1387 01:18:01,419 --> 01:18:04,284 or I'll send my young colleagues, 1388 01:18:04,285 --> 01:18:09,652 who have more stamina to sit and occupy a chair for me. 1389 01:18:09,653 --> 01:18:12,417 It is July 3rd... 1390 01:18:12,418 --> 01:18:15,287 the night of July 3, 2012, 1391 01:18:15,288 --> 01:18:19,586 and I am driving to Princeton, to the Institute, 1392 01:18:19,587 --> 01:18:22,652 to hang out with Nima and a big crowd, 1393 01:18:22,653 --> 01:18:26,384 who are all staying up until 3:00 in the morning 1394 01:18:26,385 --> 01:18:30,785 because they're going to present the Higgs data at CERN 1395 01:18:30,786 --> 01:18:33,486 at 9:00 in the morning Geneva time. 1396 01:18:33,487 --> 01:18:35,619 Certainly the biggest thing that's happened... 1397 01:18:35,620 --> 01:18:37,986 the discovery of new fundamental particles... 1398 01:18:37,988 --> 01:18:39,584 in my lifetime. 1399 01:18:39,585 --> 01:18:42,418 And the Higgs is a particle like no other, 1400 01:18:42,419 --> 01:18:44,618 like nothing we've ever seen before, 1401 01:18:44,619 --> 01:18:47,152 and it is weird, and we do not understand it, 1402 01:18:47,153 --> 01:18:50,484 but... 1403 01:18:50,485 --> 01:18:54,087 but, uh... and I missed my exit. 1404 01:19:57,886 --> 01:20:03,252 Cinq, six, sept, huit, neuf. 1405 01:20:03,253 --> 01:20:04,818 - You need quite some skills to sit on it. 1406 01:20:04,819 --> 01:20:06,319 - It's possible. - Okay. 1407 01:20:06,320 --> 01:20:07,886 - You know, there's one ball missing. 1408 01:20:07,887 --> 01:20:10,219 Oh, it's, uh... exactly. 1409 01:20:10,220 --> 01:20:11,785 No, there's one ball missing, 1410 01:20:11,786 --> 01:20:15,585 so it's... you always think you fall down. 1411 01:20:15,586 --> 01:20:18,086 Okay. 1412 01:20:18,087 --> 01:20:20,151 - Look at some of these people, like, totally asleep. 1413 01:20:20,152 --> 01:20:22,552 - Yeah, no, those are the sleeping bags. 1414 01:20:41,087 --> 01:20:42,585 My volume is up. 1415 01:20:42,586 --> 01:20:44,419 I don't know why I'm not getting sound. 1416 01:20:44,420 --> 01:20:47,451 There isn't like, a thing on here with sound, is there? 1417 01:20:47,452 --> 01:20:49,984 Who reads lips here? 1418 01:20:49,985 --> 01:20:52,486 - Can anyone see if they get sound? 1419 01:20:52,487 --> 01:20:54,686 Try streaming it in their offices or something? 1420 01:20:54,886 --> 01:20:57,514 Many apologies, guys. I don't know what's going on. 1421 01:21:05,253 --> 01:21:07,052 - Ah, Peter Higgs. - Ah, there he is. 1422 01:21:07,053 --> 01:21:08,788 - Here he is. - Very good. 1423 01:21:13,384 --> 01:21:16,552 Someone with an iPad. 1424 01:21:29,086 --> 01:21:31,153 - Not as well seated as my summer student. 1425 01:21:31,154 --> 01:21:32,452 - No! - Right. 1426 01:21:33,615 --> 01:21:35,718 Peter Higgs doesn't even get a good seat. 1427 01:21:35,719 --> 01:21:38,385 - Good morning, everybody here in Geneva. 1428 01:21:38,386 --> 01:21:40,153 Today is a special day: 1429 01:21:40,154 --> 01:21:42,584 we hear two presentations from the two experiments 1430 01:21:42,585 --> 01:21:44,152 ATLAS and CMS. 1431 01:21:44,153 --> 01:21:46,651 We are starting in a non-alphabetical order, 1432 01:21:46,652 --> 01:21:51,086 and I ask Joe Incandela from CMS to take the floor. 1433 01:21:53,451 --> 01:21:54,090 Okay. 1434 01:21:58,086 --> 01:21:59,718 Okay. 1435 01:21:59,719 --> 01:22:04,119 So I will give the status of the CMS Higgs search. 1436 01:22:04,120 --> 01:22:06,619 I want to really dedicate this to the CMS collaboration. 1437 01:22:06,820 --> 01:22:08,751 This is a picture we took last week. 1438 01:22:08,752 --> 01:22:10,085 We had a party. 1439 01:22:10,086 --> 01:22:11,749 This is only 400 or 500 people. 1440 01:22:11,750 --> 01:22:14,651 Remember, there are 4,000 people in the experiment. 1441 01:22:14,652 --> 01:22:17,084 This is not the real CMS detector. 1442 01:22:17,085 --> 01:22:18,584 That's down underground. 1443 01:22:18,585 --> 01:22:20,636 This is the spare that we keep upstairs. 1444 01:22:22,553 --> 01:22:24,285 So one page for the theorists. 1445 01:22:24,286 --> 01:22:26,752 That's all they deserve. No, I'm kidding. 1446 01:22:26,753 --> 01:22:30,218 The Standard Model is here... is shown here. 1447 01:22:30,219 --> 01:22:33,118 This is what we know. 1448 01:22:39,887 --> 01:22:42,153 And we have now... 1449 01:22:52,788 --> 01:22:55,051 But one of the big stories of this year was, 1450 01:22:55,052 --> 01:22:56,620 as you know... those of you in the field... 1451 01:22:56,621 --> 01:22:57,985 is pile-up. 1452 01:22:57,986 --> 01:22:59,818 We had to deal with very intense beams 1453 01:22:59,818 --> 01:23:01,719 like never before seen in the field 1454 01:23:01,719 --> 01:23:02,952 with many, many interactions, 1455 01:23:02,953 --> 01:23:04,786 and this slide shows... 1456 01:23:04,787 --> 01:23:08,785 the colors correspond to tracks from different particles. 1457 01:23:08,786 --> 01:23:10,784 And it was in these kind of events 1458 01:23:10,785 --> 01:23:14,285 that we're looking for one of the rarest particles ever made, 1459 01:23:14,286 --> 01:23:16,253 and that's what we call the Higgs. 1460 01:23:17,353 --> 01:23:19,418 And so this is where things stood last week. 1461 01:23:19,419 --> 01:23:22,311 As you know, if you look at the radiative corrections... 1462 01:23:26,889 --> 01:23:29,152 So if you know the W and top mass very well, 1463 01:23:29,153 --> 01:23:31,152 you can actually predict a long band. 1464 01:23:31,153 --> 01:23:32,785 - Yeah, yeah, so we're there at four. 1465 01:23:32,786 --> 01:23:34,284 One at the Tevatron. 1466 01:23:34,285 --> 01:23:36,217 They really had a tour de force measurement. 1467 01:23:36,218 --> 01:23:40,085 Ah, sorry, yeah, here it is. 1468 01:23:40,086 --> 01:23:41,885 - And we end up with four event classes... 1469 01:23:41,886 --> 01:23:43,217 Ah, there it is! 1470 01:23:43,218 --> 01:23:45,251 - Okay, so, to wrap up, in summary: 1471 01:23:45,252 --> 01:23:47,318 we conclude by saying that we have observed 1472 01:23:47,319 --> 01:23:51,721 a new boson with a mass of 125.3 plus or minus 0.6 GeV 1473 01:23:52,720 --> 01:23:54,585 at 4.9 standard deviations. 1474 01:23:54,586 --> 01:23:55,820 Thank you. 1475 01:23:58,987 --> 01:24:00,452 125.3. 1476 01:24:00,453 --> 01:24:01,917 Okay, so now... 1477 01:24:01,919 --> 01:24:02,720 Wow, 125? 1478 01:24:03,720 --> 01:24:05,139 Do you know ATLAS's result? 1479 01:24:05,719 --> 01:24:07,153 This isn't... 1480 01:24:08,886 --> 01:24:10,097 You heard about this? 1481 01:24:14,718 --> 01:24:16,484 Okay. 1482 01:24:16,485 --> 01:24:19,051 I think I can only say congratulations to everybody. 1483 01:24:19,052 --> 01:24:21,485 I will say a few words more later. 1484 01:24:21,486 --> 01:24:24,652 Now we go immediately to ATLAS. 1485 01:24:24,653 --> 01:24:26,118 Fabiola Gianotti, please. 1486 01:24:26,119 --> 01:24:27,453 Thank you. 1487 01:24:31,152 --> 01:24:32,650 Good morning. 1488 01:24:32,651 --> 01:24:37,152 ATLAS is very pleased to present here today 1489 01:24:37,153 --> 01:24:39,717 updated results on Standard Model Higgs searches 1490 01:24:39,718 --> 01:24:44,484 based on up to 10.7 inverse femtobarn of data 1491 01:24:44,485 --> 01:24:48,152 recorded in 2011 and 2012, 1492 01:24:48,153 --> 01:24:51,585 and it's a big honor and a big emotion for me 1493 01:24:51,586 --> 01:24:55,452 to represent this fantastic collaboration at this occasion. 1494 01:24:55,453 --> 01:24:58,083 So let's go to the results for this channel. 1495 01:24:58,084 --> 01:25:02,583 You can see here the results for the 2011 to 2012 1496 01:25:02,584 --> 01:25:04,983 and the combination of the two. 1497 01:25:04,984 --> 01:25:07,051 The gamma jet and jet-jet background 1498 01:25:07,052 --> 01:25:08,818 with one or both jet... 1499 01:25:08,819 --> 01:25:10,317 requirement that the energy 1500 01:25:10,318 --> 01:25:12,885 in a cone around the photon is below... 1501 01:25:12,886 --> 01:25:14,718 a structure which reproduces very well 1502 01:25:14,719 --> 01:25:16,751 the LHC bunch rate with three bunch, 1503 01:25:16,752 --> 01:25:18,153 small gaps... 1504 01:25:18,154 --> 01:25:19,837 so then, of course, we collect... 1505 01:25:25,754 --> 01:25:27,450 Yeah. 1506 01:25:27,451 --> 01:25:30,917 - A few GeV and a few hundred GeV at the level... 1507 01:25:30,918 --> 01:25:33,117 is fit in the nine different categories 1508 01:25:33,118 --> 01:25:36,786 with an exponential function to model the background, 1509 01:25:36,787 --> 01:25:38,383 so, no theoretical prediction, 1510 01:25:38,384 --> 01:25:40,451 no Monte Carlo. 1511 01:25:40,452 --> 01:25:43,417 The background is determined from the side bands 1512 01:25:43,418 --> 01:25:44,652 of the possible signal. 1513 01:25:44,653 --> 01:25:46,552 From this spectrum, 1514 01:25:46,553 --> 01:25:49,985 the background fit, you get this plot here. 1515 01:25:49,986 --> 01:25:51,651 Now the grand combination. 1516 01:25:51,652 --> 01:25:53,217 Here it goes. 1517 01:25:53,218 --> 01:25:54,949 - So this distribution is extremely clean, 1518 01:25:54,950 --> 01:26:01,317 except one big spike here... in this region here. 1519 01:26:01,318 --> 01:26:04,451 Excess with a local significance of 5.0 sigma 1520 01:26:04,452 --> 01:26:07,886 at a mass of 126.5 GeV. 1521 01:26:30,586 --> 01:26:32,284 Good. 1522 01:26:39,920 --> 01:26:43,051 As a layman, I would now say, 1523 01:26:43,052 --> 01:26:45,419 "I think we have it." 1524 01:26:52,451 --> 01:26:55,818 - Come, Lyn, come here. - Come here! 1525 01:27:06,452 --> 01:27:07,885 Okay. 1526 01:27:07,886 --> 01:27:09,785 - There's Peter. - Peter is there. 1527 01:27:09,786 --> 01:27:11,784 - Yeah. Get Peter. - Peter's there. 1528 01:27:11,785 --> 01:27:13,585 Peter! 1529 01:27:23,252 --> 01:27:25,884 - Well, I would like to add my congratulations 1530 01:27:25,885 --> 01:27:29,418 to everybody involved in this tremendous achievement. 1531 01:27:29,419 --> 01:27:33,749 For me, it's really an incredible thing 1532 01:27:33,750 --> 01:27:35,885 that it has happened in my lifetime. 1533 01:27:35,886 --> 01:27:37,787 - Not only in your lifetime, Peter. 1534 01:27:48,284 --> 01:27:50,750 That's a great day, huh? 1535 01:27:50,751 --> 01:27:52,150 That's a great day. 1536 01:27:52,151 --> 01:27:53,950 And I think all of us, 1537 01:27:53,951 --> 01:27:57,284 and all of the people outside watching it 1538 01:27:57,285 --> 01:27:59,551 in the different meeting rooms, 1539 01:27:59,552 --> 01:28:02,384 everybody who was involved and is involved in the project 1540 01:28:02,385 --> 01:28:03,701 can be proud of this day. 1541 01:28:04,451 --> 01:28:05,753 Okay, enjoy it. 1542 01:28:08,451 --> 01:28:10,084 We found the Higgs! 1543 01:28:15,118 --> 01:28:17,483 - Scientists this morning announced 1544 01:28:17,484 --> 01:28:19,283 they are almost certain they have discovered 1545 01:28:19,284 --> 01:28:21,218 what's being called the "God Particle." 1546 01:28:21,219 --> 01:28:22,717 It is not every day 1547 01:28:22,717 --> 01:28:24,384 that you see a whole bunch of scientists 1548 01:28:24,385 --> 01:28:27,583 standing up with champagne bottles and cheering. 1549 01:28:27,585 --> 01:28:29,751 - Now, the God Particle, we physicists wince 1550 01:28:29,752 --> 01:28:31,250 when we hear those words... 1551 01:28:31,251 --> 01:28:33,119 - It's the last piece of the puzzle 1552 01:28:33,120 --> 01:28:34,751 physicists have been looking for for decades. 1553 01:28:34,752 --> 01:28:36,252 - Thank you all. - Thank you for your attention. 1554 01:28:36,253 --> 01:28:37,751 Thanks to everybody on the panel. 1555 01:28:37,753 --> 01:28:39,318 If I could just ask you all to remain seated 1556 01:28:39,319 --> 01:28:40,784 just for a few minutes. 1557 01:28:40,785 --> 01:28:43,050 Clear passage here, please. 1558 01:28:43,051 --> 01:28:44,749 Clear passage here, please. 1559 01:28:44,750 --> 01:28:47,084 Can we have a clear passage? 1560 01:28:47,085 --> 01:28:48,650 - Thank you. - Thank you. 1561 01:28:48,651 --> 01:28:50,051 Congratulations. 1562 01:28:50,052 --> 01:28:52,786 Thank you. Thank you. 1563 01:29:24,252 --> 01:29:31,217 - I did feel a sense of pride when the Higgs was announced, 1564 01:29:31,218 --> 01:29:35,084 but I felt a sense of pride for humanity, 1565 01:29:35,085 --> 01:29:39,050 that, you know, we little people on a little planet 1566 01:29:39,051 --> 01:29:40,916 with tiny brains 1567 01:29:40,917 --> 01:29:44,150 can go so deep and understand what happens. 1568 01:29:44,151 --> 01:29:47,618 Now we're talking about subnuclear distances 1569 01:29:47,619 --> 01:29:50,584 a thousand times smaller than an atomic nucleus. 1570 01:29:50,585 --> 01:29:53,084 Nevertheless, we can get things right, 1571 01:29:53,084 --> 01:29:56,389 and just the power of the human mind. 1572 01:29:59,385 --> 01:30:04,085 It's astonishing that there are any laws of nature at all, 1573 01:30:04,086 --> 01:30:08,152 that they're describable by mathematics, 1574 01:30:08,153 --> 01:30:13,284 that mathematics is a tool that humans can understand, 1575 01:30:13,285 --> 01:30:17,416 that the laws of nature can be written on a page. 1576 01:30:17,417 --> 01:30:21,053 It's the greatest of all mysteries. 1577 01:30:24,051 --> 01:30:30,817 There is a strong sense that we are hearing nature talk to us. 1578 01:30:30,818 --> 01:30:33,084 Turns out, the Higgs mass 1579 01:30:33,085 --> 01:30:35,584 is about as interesting as it could be. 1580 01:30:35,585 --> 01:30:38,416 It's sort of in no man's land. 1581 01:30:38,417 --> 01:30:40,584 It doesn't prefer symmetries, 1582 01:30:40,585 --> 01:30:42,450 and it doesn't prefer multiverse, 1583 01:30:42,451 --> 01:30:44,152 but it's right in the middle. 1584 01:30:44,152 --> 01:30:48,050 The data is puzzling enough 1585 01:30:48,050 --> 01:30:52,917 that it hasn't excluded any of the theories 1586 01:30:52,918 --> 01:30:54,417 I was involved with, 1587 01:30:54,418 --> 01:30:56,651 but it hasn't confirmed them either. 1588 01:30:56,652 --> 01:31:00,917 But until we look at detailed properties of the Higgs, 1589 01:31:00,918 --> 01:31:04,216 and until we have the high-energy version 1590 01:31:04,217 --> 01:31:07,383 of the LHC in a couple of years, 1591 01:31:07,384 --> 01:31:10,885 we will not be able to make a stronger statement. 1592 01:31:13,552 --> 01:31:15,415 - The most important, first lesson 1593 01:31:15,416 --> 01:31:17,483 of the discovery of the Higgs 1594 01:31:17,484 --> 01:31:20,316 is that physics works. 1595 01:31:20,317 --> 01:31:21,985 The Higgs, on the one hand, 1596 01:31:21,986 --> 01:31:24,285 completes the most successful scientific theory 1597 01:31:24,286 --> 01:31:25,619 we've ever had, 1598 01:31:25,620 --> 01:31:27,451 on the other hand, opens the door 1599 01:31:27,452 --> 01:31:32,817 to some very major paradoxes that we now must address. 1600 01:31:32,818 --> 01:31:35,716 We're at a fork in the road, and the LHC 1601 01:31:35,717 --> 01:31:38,315 is steadfastly refusing to push us 1602 01:31:38,316 --> 01:31:40,452 in one direction or the other: 1603 01:31:40,453 --> 01:31:42,217 the multiverse on the one side, 1604 01:31:42,218 --> 01:31:46,818 and some beautiful symmetry on the other side. 1605 01:31:46,818 --> 01:31:50,625 It's cranking up the suspense as much as it possibly can. 1606 01:31:56,384 --> 01:31:58,751 - Before the LHC started, we would always say, 1607 01:31:58,752 --> 01:32:01,117 "New physics is just around the corner." 1608 01:32:01,118 --> 01:32:02,450 And now we're kind of like, 1609 01:32:02,451 --> 01:32:04,151 "New physics is still out there." 1610 01:32:04,152 --> 01:32:07,383 And, for one, I'm not discouraged by this, 1611 01:32:07,384 --> 01:32:10,985 by any means, because we know 1612 01:32:10,986 --> 01:32:12,987 that new physics has to be out there. 1613 01:32:14,985 --> 01:32:18,652 The next step is, the LHC goes into a shutdown, 1614 01:32:18,653 --> 01:32:22,317 stays off for two years for improvements and upgrades, 1615 01:32:22,318 --> 01:32:25,417 and when it returns, it's going to be twice the energy. 1616 01:32:25,418 --> 01:32:29,221 And for sure, my vote's for supersymmetry. 1617 01:32:33,217 --> 01:32:35,049 Jesus. 1618 01:32:35,050 --> 01:32:36,316 That was exciting. 1619 01:32:37,584 --> 01:32:40,084 If this is true, 1620 01:32:40,085 --> 01:32:43,916 the Higgs is about 125 GeV, 1621 01:32:43,917 --> 01:32:47,716 and that means... 1622 01:32:47,717 --> 01:32:52,216 um, yeah, actually almost all of my models 1623 01:32:52,217 --> 01:32:53,917 are ruled out, 1624 01:32:53,918 --> 01:32:56,818 which... all the supersymmetry models, 1625 01:32:56,819 --> 01:32:59,917 which is pretty cool. 1626 01:32:59,918 --> 01:33:02,717 I mean, supersymmetry could still be true, 1627 01:33:02,718 --> 01:33:07,317 but it would have to be a very strange version of the theory. 1628 01:33:07,317 --> 01:33:09,717 And if it's the multiverse... 1629 01:33:09,718 --> 01:33:13,417 well, other universes would be amazing, of course, 1630 01:33:13,418 --> 01:33:19,051 but it could also mean no other new particles discovered, 1631 01:33:19,052 --> 01:33:22,583 and then a Higgs with a mass of 125 1632 01:33:22,584 --> 01:33:27,450 is right at a critical point for the fate of our universe. 1633 01:33:27,451 --> 01:33:29,950 Without any other new particles, 1634 01:33:29,950 --> 01:33:32,082 that Higgs is unstable. 1635 01:33:32,083 --> 01:33:34,151 It's temporary. 1636 01:33:34,152 --> 01:33:37,118 And since the Higgs holds everything together, 1637 01:33:38,117 --> 01:33:42,054 if the Higgs goes, everything goes. 1638 01:33:45,052 --> 01:33:46,717 It's amazing that the Higgs, 1639 01:33:46,718 --> 01:33:48,917 the center of the Standard Model, 1640 01:33:48,918 --> 01:33:50,716 the thing we've all been looking for, 1641 01:33:50,717 --> 01:33:54,122 could actually also be the thing that destroys everything. 1642 01:33:59,118 --> 01:34:02,489 The creator and the destroyer. 1643 01:34:07,485 --> 01:34:10,315 But we could discover new particles, 1644 01:34:10,316 --> 01:34:12,921 and then none of that would be true. 1645 01:34:14,919 --> 01:34:17,971 And anyway, we have something to do. 1646 01:34:36,952 --> 01:34:41,383 - There is a very nice sentence in the Divine Comedy by Dante 1647 01:34:41,384 --> 01:34:44,983 who says, "Nati non fummo a viver come bruti, 1648 01:34:44,984 --> 01:34:48,885 ma per seguir virtute e canoscenza," 1649 01:34:48,886 --> 01:34:51,217 which means, "We were not born 1650 01:34:51,218 --> 01:34:52,715 "to live as animals, 1651 01:34:52,716 --> 01:34:56,417 but to pursue knowledge and virtue." 1652 01:34:56,418 --> 01:34:59,116 So science and knowledge are very important, 1653 01:34:59,117 --> 01:35:02,451 like art is very important. 1654 01:35:02,452 --> 01:35:05,449 It's a need of mankind. 1655 01:35:05,450 --> 01:35:07,985 I just saw, two weeks ago, 1656 01:35:07,986 --> 01:35:10,384 Werner Herzog talking about 1657 01:35:10,385 --> 01:35:13,383 and then screening his new movie. 1658 01:35:13,384 --> 01:35:14,984 But it was about these incredible caves 1659 01:35:14,985 --> 01:35:17,217 that they discovered a few years ago in France. 1660 01:35:17,218 --> 01:35:18,715 Stunningly beautiful. 1661 01:35:18,716 --> 01:35:21,917 Gorgeously drawn horses, bison, 1662 01:35:21,918 --> 01:35:24,650 rhinoceros, lions, 1663 01:35:24,651 --> 01:35:26,784 because, 40,000 years ago, 1664 01:35:26,785 --> 01:35:28,618 this is what was going on there. 1665 01:35:45,619 --> 01:35:50,316 - In exploration... - and science is exploration... 1666 01:35:50,317 --> 01:35:52,986 there needs to be the set of people 1667 01:35:53,985 --> 01:35:55,716 who have no rules, 1668 01:35:55,717 --> 01:35:58,985 and they are going into the frontier 1669 01:35:59,984 --> 01:36:03,450 and come back with the strange animals 1670 01:36:03,451 --> 01:36:06,817 and the interesting rocks and the amazing pictures, 1671 01:36:06,818 --> 01:36:09,616 and to show us what's out there, 1672 01:36:09,617 --> 01:36:11,825 discover something. 1673 01:36:17,818 --> 01:36:20,283 Why do humans do science? 1674 01:36:20,284 --> 01:36:22,984 Why do they do art? 1675 01:36:22,985 --> 01:36:28,284 The things that are least important for our survival 1676 01:36:28,285 --> 01:36:30,943 are the very things that make us human. 127426

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