Research starts with PhD students

Chapter 104 Acceptance completed, new direction for CP group? The ultimate effect of the four forces!
At 11 o'clock in the morning, Zhang Shuo and his party walked out of the Capital Airport and met Bao Hexing and Cheng Yaoxing who came to pick them up.

The fact that researchers at the director and deputy director levels came to greet Zhang Shuo and his team at the airport also showed how much the Computing Center valued Zhang Shuo and his team.

They went to the parking lot together.

Bao Hexing drove an eight-seater commercial vehicle, which was just enough to accommodate Zhang Shuo and six others. After getting in the car, they went straight to the computing center.

Cao Mengbo was already waiting at the door.

Next to him were researchers Cui Kaiwen, Shi Qiuling and others. After they got off the car, they were warmly welcomed in.

Zhang Shuo didn't feel anything special about this kind of scene.

Luo Yongjun was very happy. He felt that he had seen the world, but he was still proud every time he and Zhang Shuo received a warm reception.

Three people from the Quantum Research Institute, namely Zou Guangyuan, Wang Shanqing and Liu Hu, were also surrounded by people from the Computing Center and felt a little flattered.

Zou Guangyuan also came to the Institute of High Energy Physics with Professor Peng Tao.

At that time, the two of them walked into the Physics Center building alone. After entering, they had to introduce themselves and asked many people before they found the office of the Basic Experiment Group.

Now the director of the computing center came with a large group of researchers to greet us. It felt a bit like a leader coming to inspect.

Cao Mengbo, Shi Qiuling and others were surrounding Zhang Shuo and Luo Yongjun, but the others who followed behind were surrounding them.

The three of them were talking quietly as they walked, "What a grand occasion! This trip was not in vain. We finally got to see something new."

"Professor Zhang Shuo is extraordinary. He can make such a big scene even when he comes to the Institute of High Energy Physics."

"In the past, I always saw on TV that a certain leader came to inspect and was given a grand reception. We were treated the same way, and finally I got to enjoy it..."

Zhou Jianxin followed Zhang Shuo and had the same feeling.

The Institute of High Energy Physics is the top scientific research unit.

In the cooperative project with the Computing Center, the Computing Center was Party A and Zhang Shuo was Party B. As a result, it seemed as if the situation was reversed and Party B was treated like Party A.

The group first went to the restaurant to eat.

During the meal, Shi Qiuling, Cui Kaiwen and Zhang Shuo sat close to each other and couldn't help asking some questions about algorithm planning.

They talked about key issues.

Including overall planning, core algorithms, and especially the experimental digital transformation part.

Among Zhang Shuo and his team, the one who has the deepest understanding of the core algorithm is of course Zhang Shuo, and the second is Luo Yongjun.

As for the experimental digital conversion part, Luo Yongjun was not able to fully understand it because it was too difficult, but he understood most of it. He also had a very good understanding of the analog-to-digital conversion part, including the peripheral algorithm framework.

Therefore, Luo Yongjun is also the main person in charge of the acceptance report.

This visit to the Computing Center was to complete the project acceptance. Project acceptance is not just about making a report. The focus is to let the Computing Center project team understand the overall structure of the algorithm planning, the functions of key modules, basic logic, etc., so as to understand the principles of large-scale experimental deviation analysis and determine the feasibility of the algorithm.

The report is not important. What is important is to explain the difficulties clearly and answer some questions about algorithm planning.

After the meal, the group went to the conference room.

Luo Yongjun, Zou Guangyuan and others gave lectures on algorithm planning in the conference hall.

Luo Yongjun explained analog-to-digital conversion, which is also part of the core algorithm. Zou Guangyuan and the other two talked about the planning content of the part that the Quantum Research Institute is responsible for.

Anyone in the Computing Center project team can come to the conference hall to listen to the report and ask questions regarding the explanation.

Zhang Shuo went to a small meeting room with Cui Kevin, Shi Qiuling and others.

He was talking about experimental digital transformation.

This part is the most core content and will involve some confidentiality issues, so the report will not be made publicly in the conference hall.

The entire algorithm does not require everyone to understand the principles. Others only need to complete the program according to the module plan. Only those responsible for the core algorithm need to understand the content of the digital conversion part of the experiment.

Once they understand the principles of experimental digital transformation, they can arrange the program work according to the plan and solve problems themselves if they encounter any.

The persons in charge of this part are Shi Xiuling, Cheng Yaoxing and Liao Zhenyu.

Shi Xiuling and Liao Zhenyu are both researchers at the Center for Physics, one is the head of an academic group, and the other is an outstanding young scholar at the deputy director level.

Cheng Yaoxing is a director-level researcher at the Computing Center, only half a level lower than Cao Mengbo.

Together they are responsible for the core algorithm work.

Cui Kaiwen was only qualified to attend as an auditor. He did not participate much in the experimental work, so it was a bit difficult for him to understand.

This is mainly because the digital conversion of experiments involves complex relationships between many experimental parameters. Without long-term experience in analyzing particle collision experiment data, it is not easy to understand.

Zhang Shuo first gave an overall summary, "Experimental digital conversion is to judge the data and convert each part of the data into digital according to the evaluation method of analog digital conversion."

"In the whole process, the deviation assessment system is the main calculation method, so it involves many judgment modules."

“Of course, there will also be many modules for parameter relationship analysis. To calculate more accurately, we must put the related parameters together and then calculate the impact deviation values ​​separately.”

"The purpose of these incomprehensible judgment modules you mentioned is to make the deviation calculation more accurate..."

After giving the overall explanation, Shi Xiuling, Cheng Yaoxing and others asked targeted questions.

Just explain the part you don’t understand.

The core issue is still concentrated on the logical relationship between modules. Large-scale experiments involve more parameters and influencing factors, and the number of evaluation and judgment calculations will also be large.

If you want to fully understand it, you must clarify the logical relationship between the modules.

……

An entire afternoon was spent explaining the 'logical relationship between modules'.

Zhang Shuo also felt very tired.

After resting for a night in the hotel, I went to the computing center again the next morning. It was still the same small conference room, and Shi Qiuling and Cheng Yaoxing were still there.

There are still many things they don't understand.

Zhang Shuo broke down each difficult point and explained it in detail.

The same goes for Luo Yongjun and others.

They were still in the conference room, explaining some problems in algorithm planning.

Luo Yongjun is even busier than Zhang Shuo. He is responsible for the analog-to-digital conversion. The analog-to-digital conversion is relatively easier, but there are also many people around him asking questions.

Zhang Shuo only faced three or four people, while Luo Yongjun had to face a large group of people.

Zou Guangyuan and the other two felt relieved.

They are responsible for some scattered algorithm planning content, which can be understood as long as they study carefully. After making a report, they feel very relaxed and even have time to visit the surrounding parks.

They all felt that the trip was worthwhile as they received a grand reception, stayed in a luxurious hotel and had an easy job.

The explanation work lasted for three days.

It was not until the fourth day that Shi Qiuling, Liao Zhenyu and other talents fully digested the content. They understood the principles of large-scale experimental deviation analysis and determined that the algorithm planning was complete.

The acceptance work can be completed here.

Although the process was tiring, the results were very good. There were no problems with the algorithm planning and the acceptance was passed in one go.

Zhang Shuo was very satisfied with this.

The Computing Center project team is more satisfied.

Cao Mengbo placed his hopes on Zhang Shuo's project. If the algorithm planning did not go smoothly, they would also be affected. Of course, the most important thing is that once the algorithm planning is completed, the next step can be started, which is to actually design the program to complete the algorithm.

This is what both parties expect.

In the afternoon, Zhang Shuo stayed in the computing center.

Cui Kaiwen sat with him in the lounge and talked about other things. "We did more than a dozen experimental calculations, and each time the results were consistent with the deviation formula you studied."

"The calculation results have been published on the platform, and the nuclear organization has come to inquire about the details."

He said this with some pride.

In terms of the research direction of particle physics, the nuclear organization is the international weather vane, and there is still a big gap compared to the research done in high energy.

The experimental calculation data they have published now will attract the attention of nuclear organizations, which can be considered a success.

He then asked, "Does this mean that we have further confirmed the unknown physical phenomenon?"

Zhang Shuo said, "It only illustrates two points. The first is that the small-scale experimental deviation analysis algorithm is relatively complete. The second is that the deviation function I studied is relatively accurate."

"Finally, I think unknown physical phenomena definitely exist, but no matter how much analysis is done on small experiments, it is impossible to confirm the unknown physical phenomena, because the data information is too little to meet the credible standard for confirming physical phenomena."

As the two were talking, Yu Fei from the CP team came in from outside. He smiled when he saw Zhang Shuo, "I knew you were here, Professor Zhang, so I came to see you."

"Hello, Professor Yu."

Zhang Shuo stood up and shook hands with Yu Fei.

Yu Fei was very familiar with the computing center and sat down directly without treating him as an outsider.

Cui Kaiwen said, "How did Professor Yu have time to come to our computer center?"

Yu Fei was not angry, but sighed bitterly, "Don't be sarcastic, you should know how embarrassing my current situation is."

"What's wrong?" Zhang Shuo asked curiously.

Yu Fei said depressedly, "Professor Zhang, you should know how much impact your research has on the CP group. We didn't lose our jobs, and the CP group didn't disband, but the problem is... there's nothing to do!"

"The experiment has been suspended, and we can't find the next direction. It doesn't matter. The problem is that Academician Tan doesn't care anymore. I am now the nominal head of the CP group. A lot of people have come to ask me what to do next, and many people have applied for transfers."

He shook his head with a wry smile, "Academician Tan focused on his algorithm project and left the CP group alone, and even planned to let me take over."

"I have no idea!"

Zhang Shuo asked, "Does Academician Tan really intend to step down?"

Cui Kaiwen smiled and said, "Academician Tan has formed a project team to study large-scale experimental deviation analysis algorithms. He said he would find a research direction on his own, which is equivalent to opening up a new project..."

"Isn't that a duplication of your project?"

“So, we are competitors.”

Cui Kaiwen made everyone laugh. They had even completed the algorithm planning, and the next step was to start detailed programming and writing code.

Tan Youming has just assembled a team and is ready to find a new direction.

This gap...

Yu Fei said, "Academician Tan told me that he will step down at the meeting next month. He has a very good reason. Greg Ward of Fermilab was laid off, and Francisco of the Nuclear Organization also stepped down. He can't continue to occupy the position. He said he wants to leave the opportunity to young people."

He pointed his thumb at himself. "I am that young man."

Zhang Shuo laughed when he saw this and asked, "You can leave too?"

"It's not that easy."

Yu Fei didn't care. He explained, "There are so many people in the CP group, and someone has to clean up the mess. Academician Tan has brought together a team to work on the project, which is equivalent to opening up a new direction."

"I'm different. No one wants me to join other teams at my level..."

That's where it gets awkward.

Yu Fei is a deputy director-level researcher. He is nominally the third person in the CP group, but actually the second person.

After Tan Zhiming stepped down, he became the number one figure.

Originally, he was not qualified to be the head of the CP group due to his position, but now the CP group was a mess and no one was willing to take over. If he wanted to do other research, he had to deal with the mess.

His rank was also awkward.

Researchers at the deputy director level are at the management level in any project. They either work together with others on large projects or apply for projects independently when doing their own research.

In the past few years, Yu Fei has been doing experimental research on CP destruction. Where can he go now?
After Yu Fei finished complaining, he said to Zhang Shuo, "I came here to ask about your research. Since the original signal conversion method can't find the baryon CP destruction signal, how can we improve the technology? Or in which direction should we research?"

"I've been thinking about this problem recently and I have no idea what to do."

Zhang Shuo thought about it carefully and shook his head, "I have not studied CP violation. Based on my understanding of particle physics, it is difficult to find the signal of baryon CP violation by studying hyperon decay."

"Why?" Yu Fei frowned and asked.

Kevin Cui was also very interested.

"What I said may not be correct. It's just my own understanding." Zhang Shuo first set the tone, and then said, "Decay involves the action of weak force. Baryon CP violation is the explanation of the material universe."

"I think that if the baryon CP violation signal exists, studying the strong force between quarks may be more obvious."

"Then how do we study it?" Yu Fei asked blankly.

"Once the particle collision experiments are more sophisticated, maybe we can analyze it? I don't know about that either."

Zhang Shuo continued, "But I can give you a suggestion. I think you don't have to study CP violation. You can also simply study the hyperon decay phenomenon."

"What do you mean?"

"Unknown physical phenomenon."

Zhang Shuo said a word, and then said, "This is a new discovery. An unknown physical phenomenon exists in particle collision experiments, but why does this phenomenon exist?"

"In our current research, the unknown physical phenomenon is related to energy loss, which causes deviations in particle collision experiments."

"The energy of the proton beam is mainly kinetic energy and electromagnetic energy. Is it possible that the loss is caused by electromagnetic energy?"

"Since electromagnetic energy can affect particle collision experiments, can strong electromagnetic interference affect hyperon decay?"

"The spectrometer detection device of your CP group is very accurate. If you design an experiment in this direction and analyze the detected data, perhaps you can make a discovery?"

Zhang Shuo said "maybe", but he was still looking forward to it.

Particle collision experiments can produce chaotic force fields and cause deviations between experiments and simulations, but they are not the only ones.

In fact, several basic forces in physics can create chaotic force fields when they reach certain limits.

The strong force is to make protons and neutrons disintegrate, and the strong force is forcibly separated, which is the particle collision experiment.

The weak force is decay and nuclear fission.

Electromagnetic force creates ultra-high intensity electromagnetic fields.

Gravity is the force that causes super-massive celestial bodies in the universe to distort space.

The experiment he did in his previous life was to use strong electromagnetic interference to interfere with the strong force between quarks, with the aim of detecting clear signals of the correlation between the four forces.

In other words, by creating an extreme basic force environment and interfering with other forces, it is possible to detect signals that indicate the correlation between the four major forces.

Strong electromagnetic interference hyperon decay is far from reaching the level of detecting correlation signals produced by the four forces, but it is very likely that more clear chaotic force field phenomena can be observed than in particle collision experiments.

(End of this chapter)