Chapter 278 I just tried to study it
When Academician Yang came out of the laboratory, he saw Zhang Changqing and Chen Peipei joking at the entrance of the laboratory.
"Where's Xiao Xu?" He also said in the morning that his student would take Xu Qingzhou to relax.
Experiments need to be done, but they also need to be balanced between work and rest.
Today he also saw Xiao Xu staring at the background data in a daze, staring at the Feynman diagram again and again.
Thinking of this, Academician Yang smiled and shook his head. He could watch the background events for a long time. Young people are really curious about things.
He also took a look at it at that time.
It's all useless background information.
Zhang Changqing said: "I'm back to the hotel. Team Leader Shen will pick up Academician Chu tomorrow, and Junior Brother Xu will take over."
"Yes, Lao Chu is coming." Academician Yang also thought about this.
The month-long CMS experiment has finally come to an end. As usual, when the experiment ends, there will be a two-day report exchange meeting, and some scholars will arrive early.
"You are playing outside, please pay attention to your own safety."
"Okay~"
Xu Qingzhou returned to the hotel, finished dinner in a few minutes, and continued to immerse himself in calculations.
The whole process is quite complicated, involving the perturbation theory method of quantum field theory, the drawing and calculation of Feynman diagrams, the spin and color of particles, etc.
Calculations are performed with the help of quantum field theory, and the Lagrangian is used to describe the interaction term between the Higgs particle and the top quark.
Next, we need to use the Feynman diagram to calculate the amplitude of the scattering between the Higgs boson and the top quark pair.
There are also scattering cross sections, decay processes, etc.
Until now, he was still looking at the decay width and branching ratio between the two particles in order to obtain the probabilities of the Higgs particle and the top quark decaying to different final states.
If you are optimistic, the results will be available in another week.
On the 10th, Xu Qingzhou, who was supposed to be taking a break, finished the data analysis for Shen Yuanjie, left the laboratory, and headed straight for the small town next to the experimental base.
Shen Yuanjie invited him to dinner and said that Academician Chu was also there.
So, it was Chu Jiangfeng who wanted to see him?
When Xu Qingzhou entered the private room, he saw Shen Yuanjie talking to an old man. The old man looked in his fifties or sixties, and his temples were a little white, but he was full of energy and his eyes were bright.
Seeing Xu Qingzhou coming out, Shen Yuanjie waved his hand.
"Xiao Xu, let me introduce to you. This is my teacher, Academician Chu Jiangfeng."
Xu Qingzhou said hello respectfully: "Hello, Academician Chu."
Chu Jiangfeng, an honorary professor at Peking University, is definitely the Beidou of Xia Guo Mathematics, specializing in topology, harmonic analysis, partial differential equations, combinatorial mathematics, analytic number theory, etc.
A true master of mathematics.
"Xiao Xu, sit down and don't be restrained." The old man was very kind.
Shen Yuanjie said with a smile: "The teacher has been saying that he wants to meet the geniuses of Peking University, and today I finally found the opportunity."
"I have always admired Academician Chu."
Everyone exchanged simple greetings and started ordering food at the same time.
After ordering, Chu Jiangfeng looked at Xu Qingzhou and asked: "You are about to graduate from undergraduate degree. I think you are very interested in physics. Do you plan to major in physics in the future?"
Xu Qingzhou shook his head and said: "I still want to focus on mathematics. As for physics, it is just a hobby and I can participate occasionally."
Academician Chu nodded and said with a smile: "This is a good idea. Only by learning mathematics well and doing physics can you get twice the result with half the effort. I met Professor Gu at a mathematics conference a few days ago. He has great expectations for you. .”
Xu Qingzhou was very grateful to Professor Gu Zhizhong. He was lucky to have a teacher who thought about himself like this.
"What Lao Gu means is that in the field of number theory, he has nothing left to teach you."
Academician Chu paused and said in a deep voice: "So I want to ask, are you willing to apply as a graduate student here?"
Xu Qingzhou roughly guessed Academician Chu's purpose on the way here. Before he could speak, Academician Chu had already waved his hand, "Don't rush to give me an answer. You can wait until you think about it carefully before making a decision."
Next door, Shen Yuanjie was filled with emotion. He had fought his way through thousands of troops before enrolling as his teacher's graduate student.
Now, the teacher has come to invite me personally.
Can't compare, can't compare. However, with Junior Brother Xu's talent, it seems worth it.
Xu Qingzhou said seriously: "Thank you, Academician Chu, I will seriously consider it."
This time it was really no excuse. During his graduate studies, he did not intend to completely take root in the field of number theory, so following Academician Chu was a good choice.
Next, the three of them chatted about some mathematical issues. Although Academician Chu did not specialize in the field of physics, he had dabbled in it and participated in the calculation of many physical experiments, so he still knew a lot about physics.
For example, three people also studied the improvement of the physical model of this experiment.
The atmosphere of the meal was quite nice.
This was just a small episode. In the following time, Xu Qingzhou was busy again, immersed in complex calculations.
Sunday, September 18th.
On the last day off, Xu Qingzhou delivered his research report to Academician Yang’s desk.
Looking at the USB flash drive on the table, Academician Yang did not react for a moment and confirmed: "You said that you verified the existence of the coupling between the Higgs particle and the top quark pair through data?"
Xu Qingzhou nodded and said: "When I was screening the background events of the Higgs particle, I noticed that a wave similar to the resonance peak of the Higgs particle appeared in the background event."
"So I tried to study it and found that this resonance peak comes from the top quark pair."
"The calculation process is all in the report."
Academician Yang fell silent, because Xu Qingzhou said it too easily. He tried to study it and verified an important theory in the standard model.
So, this is what Xu Qingzhou has been busy with?
Academician Yang's mouth moved, but he didn't know how to describe Xu Qingzhou's humility. He could only say, "I have to take a look first."
"No problem."
Xu Qingzhou is not worried about the accuracy of this report. He has verified it several times himself.
Hotel lobby.
Zhang Changqing grabbed Xu Qingzhou: "Junior brother, I finally found you. I made an appointment with a few people and let's have a barbecue."
"You go ahead, I have to take a rest."
Xu Qingzhou shook his head. Since he stayed up until 3 a.m. last night and was doing calculations during the day, he just wanted to go back and take a nap.
"Let's go together, I've even paid the deposit for the venue."
"I'm worried about my sudden death." Xu Qingzhou felt that his senior brother's deposit would be wasted.
"This"
Finding that Xu Qingzhou looked really tired, Zhang Changqing nodded and said, "Okay, then you have a good rest."
"By the way, Senior Brother Zhang, you'd better turn on the ringtone on your cell phone."
Before leaving, Xu Qingzhou thought of something and reminded him with a smile.
"Huh?"
Zhang Changqing was stunned for a moment, and originally wanted to ask why, but Xu Qingzhou had already entered the elevator. Junior Brother Xu was probably too tired, so he started talking nonsense.
Meanwhile, Professor Baker is drinking with old friends.
"Abby, I heard that you fell into trouble in front of the Xia people this time?"
Professor Baker said helplessly: "There is a kid who is good at mathematics in the Xia people's team. This young man is very talented."
"Hey, don't be depressed. Your student Mia is an incredible genius, no worse than Xu Qingzhou."
Professor Baker shrugged and said with a smile: "I'm not depressed. Although Xia Guo has won a small advantage this time, there is still a Pacific Ocean between us in high-energy physics."
Just then, the phone rang.
My old friend was drinking when he heard Professor Baker's expression change, "What? Oh! How is this possible! I'll be there soon!"
"What happened?"
"The kid we just talked about seems to have done something big."
(End of chapter)