Chapter 171 Perfect Theory
Now that the data is in hand, what to do with it becomes a problem.
Starting from the theory of quantum chromodynamics, there is no theoretical support.
However, from a statistical point of view, the number of samples is too small to draw any useful conclusions.
After five nights of analyzing the 10G data, Lu Zhou finally came to a conclusion.
If you want to confirm whether this abnormal bulge is a characteristic peak, in the final analysis, you still have to run a few laps on the Hadron Collider. With the current amount of data, the accumulated cases do not even have a confidence level of 3 sigma, not even a "sign" in physics, let alone a "discovery".
After working behind closed doors for five nights, Lu Zhou found Academician Lu with the research results and data of the past five days.
It is impossible for him alone to convince CERN. After all, his identity is only an intern, and his weight is still too light.
After explaining his point of view to Academician Lu, Lu Zhou thought that the old gentleman would at least be emotional about this discovery if he didn't say he agreed with him, but he didn't expect to get a negative answer.
"It is impossible for the hadron collider to start because of your whim. If you want to find particles of 750GeV, the collision energy must be at least 1.2TeV, or even 2TeV. This cost is not a small number, let alone The schedule of LHC is very full, and CERN still has endless experiments to do, everyone wants to verify the correctness of their theories, but the funds are limited.”
Lu Zhou did not give up and tried to persuade: "But professor, since the 'post-Standard Model era', we haven't discovered any new particles. Don't you think this may be an opportunity?"
Yes, both the tetraquark state and the pentaquark state particles discovered now are all particles that have been observed before, but the confidence level is lower than 5sigma. They are called "signs" in the academic circle and cannot be determined as "Find".
If the signal appearing at 750GeV is confirmed to exist a new particle, Lu Zhou is not sure what it means for physics, because he does not know what the particle that will appear there is.
But for him personally, he can be sure that once this discovery is confirmed to be true, it will at least be a Nobel Prize.
"To be honest, I'm not very optimistic." Hearing Lu Zhou's words, Academician Lu shook his head and said, "750GeV is too heavy. From the perspective of quantum chromodynamics, this is out of the theoretical foundation."
Lu Zhou emphasized: "But we have observed this signal on ATLAS and CMS detectors! Do you think this is just a coincidence?"
"Yes, you're right, it's not necessarily a coincidence," Academician Lu nodded, pointing to the data on the paper, "But have you ever thought that it might just be a two-photon produced by the aggregation of gluons Signal?"
Lu Zhou nodded: "You are right, there is indeed such a possibility, but it is precisely because of this that I need to use experiments to prove my guess is correct!"
Seeing his students getting more and more excited as they talked, Academician Lu smiled, paused for a moment, sighed and said: "I understand the excitement in your heart, but similar things have never happened before. And as far as I am concerned As far as I am concerned, I really want to help you to test this result, but unfortunately, we are not a member state of CERN, but a partner country. Neither I nor the old Gao from Shuimu University have much to say here. And Shangjing BES, this experiment cannot be done.”
Lu Zhou fell silent.
As the old man said, the Hadron Collider belongs to others, so he must give priority to his own research. Unless you can produce conclusive evidence, not to mention directly convincing the person in charge of CERN, at least make them interested in your theory.
However, this is again an endless loop.
Without experiments targeting this energy region, no evidence will emerge at all. Unless you wait for someone else to do a collision experiment above 1TeV, and then look for these leftovers from other people's data...
However, when will this have to wait?
And even if these things are discovered by then, most of them will have nothing to do with me.
After all, it is impossible for him to stay at CERN and keep staring at other people's experiments. He has to go back to finish his studies and go to Princeton to study for a Ph.D.
Back in his room, Lu Zhou lay on the bed, looking up at the paper in his hand in a daze.
Suddenly, he coughed lightly and asked in a low voice.
"System, are there any particles at 750GeV?"
The system is not responding.
Is it because the physical level is not enough?
Or is it because this kind of question can also be regarded as a directional question? According to his previous experience, any question involving direction is not within the system's answering range.
MMP, more and more feel that this point is useless.
Taking a deep breath, Lu Zhou sat up from the bed.
It's too early to give up now, not to mention that he himself is not someone who will give up easily.
In fact, there are still opportunities.
It is impossible for CERN to start the Hadron Collider for one of his interns, because his weight is not enough.
If this is the case, then just find someone with enough weight to convince the person in charge of CERN for him!
In the recent period, so many big cows in the field of theoretical physics have gathered here, and there are still many people with this weight.
If there is no accident, these people will stay until the end of the month, and will gradually withdraw from here after CERN holds the European Nuclear Research Conference and reports the research results of pentaquark state particles.
Now Lu Zhou has only one thing to do, and that is to perfect his theory before the end of the month.
...
Perfecting the theory may sound simple, but it is not so easy in practice.
If this physical problem is to be transformed into a mathematical problem, a key point is that he must use mathematical methods to prove that when there are enough samples, the bulge that appears in the 750GeV energy region will definitely form a characteristic peak.
It sounds like this is just a statistical problem, but in the absence of samples, it is almost impossible to simply use statistical tools to solve this problem.
He needs more evidence.
Then analyze new conclusions from these evidences.
"...This is the experimental data collected on the ATLAS and CMS detectors when the LHC was looking for the Higgs particle from 2012 to 2013, but you should know that the Higgs particle is only 125GeV, and we didn't have it when we were looking for it Make the collision energy so large."
In the office, Professor Greer threw the USB flash drive into Lu Zhou's hands.
After receiving the USB flash drive, Lu Zhou said sincerely, "It's fine, thank you very much!"
After thinking about it, it seems that this is the only one he can ask for.
Although the two hadn't known each other for a long time, this Professor Greer and his personality unexpectedly got along well. Although he was not optimistic about the content of Lu Zhou's research, the professor did not dissuade him, but helped him collect a lot of valuable data.
Although these documents are not classified, they are not fully open to the public. If there is no one you know inside CERN, it is really not easy to get these data as an intern.
Professor Greer smiled and said, "You're welcome, it's a trivial matter. Speaking of which, have you made any progress in your research?"
Lu Zhou nodded and said, "It's already a little bit."
Professor Greer reminded: "If you want to use the hadron collider, my suggestion is to find someone with enough weight in the theoretical physics community to cooperate, rather than to build a car behind closed doors. After all, no matter how far your theory is , and ultimately have to be supported by LHC data."
Lu Zhou: "That's exactly what I planned, but before that, I want to make my theory a little more reliable."
Professor Grayer asked: "Is there a suitable target?"
Lu Zhou shook his head: "Not yet..."
He is going to wait until the theoretical preparations are a little more perfect, and then take the papers and try them one by one with the method of casting a wide net. For example, stay at a lecture given by a certain boss, and wait until the lecture is over before looking for it with a paper.
If that doesn't work, then he can't help it either.
Professor Greer thought for a while, and asked casually, "Do you need me to recommend someone to you?"
Lu Zhou was slightly stunned, and immediately said: "Of course! Do you have any good suggestions?"
Seeing Lu Zhou's eager look, Professor Greer smiled and said: "Frank Wilczek, the Nobel Prize winner in physics in 2004, is probably the best talker among all the people I know. If You can convince him, maybe there is some hope."