Research starts with PhD students

Chapter 75 Impossible, this is simply impossible!

cp experimental data, that is, the measurement data of the cp team's research on hyperon decay.

The computing center of the Institute of High Energy Physics must have the hyperon decay data measured by the CP group, but the decision-making power lies not in the computing center but in the CP group of the Physics Center.

Zhang Shuo thought of what Qiu Zhichao said, so he went to the Quantum Research Institute and asked them to help contact the CP group.

At the same time, Yu Feizheng and Tan Zhiming were discussing the expansion of the CP group.

There are three directions for the expansion of the CP group: one is to increase investment, manufacture and introduce new equipment, one is to increase the number of personnel for basic work, and the third is to conduct international cooperation.

What they talked about was international cooperation. On the one hand, they wanted to attract international talents, and on the other hand, they also hoped to cooperate with other CP teams.

The research on baryon CP violation requires extremely advanced equipment and the support of top-level talents.

There are many teams and scholars in the world who study the problem of baryon CP violation, but only three of them can be said to be "doing large-scale research", namely the Francisco research team of the Nuclear Organization, the Grayward team of Fermilab, and the CP group of the Institute of High Energy Physics.

Tan Zhiming hopes to cooperate with the other two teams, and he is most optimistic about the Francisco team of the Nuclear Organization.

The two sides can complement each other at the technical level.

The CP group of the Institute of High Energy Physics has the most advanced probe technology, and their accuracy in detecting hyperon decay signals is very high.

Francisco's team, relying on large-scale particle collision experiments conducted by nuclear organizations, can easily produce large amounts of Corsi hyperons.

Agostini's group belongs to the Nuclear Organization Data Center, but they are engaged in research on CP destruction signals and have a direct relationship with Francesco's team.

That's why when Tan Zhiming learned that Agostini was coming to China, he took the initiative to go to the airport to greet him.

As they were talking, the phone in the office rang.

Yu Fei picked up the phone and said, "This is the CP Research Office. Who are you?"

Opposite him was Zhang Shuo.

He said directly, "Hello, I'm Zhang Shuo."

"Academician Tan said before that he could provide hyperon decay data for our research. Is that true?"

Yu Fei was stunned for a moment. He glanced at Tan Zhiming and said, "Wait a minute."

He talked to Tan Zhiming about it.

Tan Zhiming nodded immediately, "Give it to them. It won't do us any harm."

Yu Fei immediately said into the phone, "No problem, anytime."

Zhang Shuo said seriously, "Professor Yu, there is one thing I need to make clear in advance."

"The algorithm that I worked on with the Boorman team was not to analyze the CP violation signal, but to prove through calculation that the signal conversion method of the current CP experimental equipment is unable to measure the CP violation signal of baryons."

Yu Fei was stunned for a long time to understand, and said in surprise, "Can you say it again? I don't quite understand."

Zhang Shuo repeated it patiently.

"wait."

Yu Fei was about to turn around and discuss with Tan Zhiming, then said, "Leave me your phone number and I'll call you later."

"it is good."

Zhang Shuo gave out his phone number.

After Yu Fei wrote it down, he immediately told Tan Zhiming about the information he had just heard.

Tan Zhiming laughed. "How is this possible? The signal conversion method of the experiment cannot detect the baryon CP destruction signal?"

"This method has already detected the CP violation signal of muons. It has been proven to be effective and has been used for decades."

He shook his head and said, "Also, Agostini's team specializes in using algorithms to analyze baryon CP violation signals. Last time at the CHEP conference, he even announced the discovery of baryon CP violation signals, but Zhang Shuo pointed out the problem."

"He brought his team to find Zhang Shuo, and he must be correcting the algorithm!"

This inference is very reasonable.

Tan Zhiming has already figured out the whole story. He is extremely sure of his judgment, and others also think there is nothing wrong with it.

It all makes sense.

Tan Zhiming shook his head and asked with a smile, "Do you believe what Zhang Shuo said just now?"

"Do not believe."

Yu Fei immediately shook his head. "Internationally, all researchers studying hyperon decay use similar signal conversion methods. They want to prove that it is ineffective..."

"I can't even think of such a thing."

"Yup!"

Tan Zhiming continued, "This is an excuse! It is said that Agostini is a very arrogant person, arrogant to the point of madness. Such a person must be very concerned about his reputation."

"He doesn't want to fail and be laughed at by others."

"So, they should find an excuse first. Anyway, we don't know the situation. By then, nothing can be detected, so they can back down."

Yu Fei suddenly understood, "This makes sense!"

Tan Zhiming smiled proudly.

He has lived for so many years and thinks he has some understanding of human nature.

This matter is clear at a glance.

Yu Fei also called Zhang Shuo back and confirmed that they could use the data from the CP group.

This result surprised Agostini.

“They let us use data?”

Agostini suddenly remembered the 'CP Team Leader' whom he met at the Capital Airport. "That guy was quite nice. I should have said a few more words to him. If it was Francesco, he would definitely refuse me to use their data."

"Of course, I won't listen to what he says. Anyway, the data is in the laboratory..."

……

After confirming that the CP group agreed to use the data, the group set off for the capital.

Zhang Shuo also brought some finalized algorithm frameworks, which he could hand over to the computing center so that they could complete some coding work in advance.

There were six people in the group.

In addition to Zhang Shuo and the Agostini quartet, the remaining one is Professor Peng Tao from the Quantum Research Institute.

Peng Tao was in charge of a cooperative project with the Institute of High Energy Physics' Center, and he also happened to be going to the capital to discuss follow-up cooperation issues with the Physics Center.

On the plane, Peng Tao asked Zhang Shuo curiously, "Is your algorithm to amplify the CP destruction signal?"

Many people think so.

The analysis algorithms for CP violation signals are basically aimed at amplifying the CP violation signals, and only by amplifying the signals can they be more likely to be detected.

Zhang Shuo pursed his lips and thought about it. He felt that there was nothing he couldn't say, so he simply said, "We are doing reverse research."

"Reverse research?"

Peng Tao didn't understand at all.

Zhang Shuo said, "Bulman believes that the current experimental signal conversion method for measuring hyperon decay cannot detect the CP violation signal of baryons."

"This is what we are studying. Isn't it interesting?" "Uh~~"

Peng Tao was stunned for a long time, muttering, "It sounds very interesting, but the question is how to analyze this? Moreover, will the CP team let you use data?"

This sounds like someone is going to kill someone, but the person being killed is handed a knife?

Zhang Shuo pursed his lips tightly and said, "Academician Tan is a good person. He may be the kind of person who pursues scientific truth."

"If our research is successful, he will be able to find the right direction to move forward."

"If it fails, it won't have any impact."

Peng Tao's mouth twitched when he heard this. He also knew Tan Zhiming, but he didn't think he was that kind of person.

When it involves an academician, it is difficult to make too many comments, but I feel that it is very likely that Tan Zhiming simply does not believe it, for example, the person who wants to kill is a three-year-old child.

What if an adult hands you a knife?
That's just fun.

When he looked at Zhang Shuo and Agostini again, his eyes changed.

These are two lunatics!

If their research is successful, it will destroy the existing CP destruction research system and prove that the past efforts of the major CP groups were meaningless.

Peng Tao remembered Zhang Shuo's question just now, thought about it carefully, and couldn't help but mutter something.

"It seems quite interesting..."

……

At three o'clock in the afternoon, the group arrived at the computing center.

Many people were waiting at the door.

As soon as Agostini got out of the car, he was warmly welcomed. Tan Zhiming, Yu Fei, and several other researchers took the initiative to go over and shake hands and greet him.

Zhang Shuo also shook hands with several researchers and walked inside while exchanging pleasantries.

Perhaps because he wanted to use the data of the CP group, Agostini did not show an attitude of keeping people at a distance, and even spoke a few words to Tan Zhiming politely.

After entering the computing center building, Agostini went straight to the point and talked about using algorithms to analyze data.

This is a test, and it can also be considered a formal analysis.

The person in charge of the CP group data in the computing center was Bian Jianqing. He took a group of people to the CP computing room on the second floor, where there was a whole row of hard drives storing hyperon decay measurement data, and a large number of computing processors were neatly placed next to them.

Bian Jianqing and several other researchers discussed the issue of data calculation with Kalwach, and then began to match the input format.

Even if the data is in front of us, we cannot analyze it directly. We also need to deal with input problems. A very direct way is to modify the input end of the algorithm, or convert the data into a suitable format.

The data measured by hyperon decay are internationally accepted. Even if there are differences, they are not large and only require a small correction.

All of this work was discussed by Kalvaher, Liam, and Elias with the researchers at the Computing Center.

After the modification is completed, you can enter the data for analysis and testing.

……

Everything is ready.

Kalwach learned about the computer's performance and estimated the time, "Half an hour will be enough."

They only selected part of the data from one experiment.

On the one hand, it is to do testing, and on the other hand, it is to leave hope.

If the analysis results do not reveal any abnormalities, it can be temporarily attributed to the small amount of data.

This way there is hope next time.

Zhang Shuo and Agostini were invited to the lounge to wait. Tan Zhiming, Yu Fei, Cui Kaiwen and others also went to the lounge.

When they arrived at the lounge, Agostini found a corner and sat down. His expression remained serious and did not change for a long time.

He was very nervous and gave off an aura that kept strangers away.

The others were talking to themselves.

Cui Kaiwen was familiar with Zhang Shuo, so he sat next to Zhang Shuo.

Yu Fei also came over. He glanced at Agostini and asked in a low voice, "Zhang Shuo... Professor Zhang, is what you said on the phone true?"

Cui Kevin also looked over curiously.

Tan Zhiming came to the computing center and told them what happened on the phone, as well as his own inferences, and reminded them that "Agostini is very concerned about his reputation, so don't say it to his face."

Now Yu Fei asked in a low voice, wanting to know what Zhang Shuo said.

Zhang Shuo nodded and said, "Of course it's true. I never joke about research."

"what?"

"Really?"

Yu Fei and Cui Kevin looked at each other.

Zhang Shuo clearly stated, "The purpose of the algorithm we developed is to prove that the experimental signal conversion method for measuring hyperon decay cannot measure the CP violation signal of baryons."

Yu Fei stared at Zhang Shuo carefully, but he couldn't tell that the other party was joking.

He was silent for a long time, then sat back next to Tan Zhiming and muttered, "Zhang Shuo said that what they did was for that purpose, and it didn't seem like they were joking."

Tan Zhiming frowned, "Then we have come here for nothing? What's the point of an algorithm that can't expand the CP destruction signal?"

"Prove that the experimental signal conversion method is ineffective?"

Tan Zhiming shook his head in amusement, "Even April Fool's Day doesn't have such a big joke!"

Suddenly, an English voice came from the corridor, "We've found something!"

“An interesting result!”

"Bulkman! Bulkman! Zhang Shuo! Zhang Shuo..." Elias appeared at the door panting.

Agostini stood up suddenly.

The others also stood up and looked over.

Elias took a few deep breaths, his face flushed with excitement as he said, "In the range of 12% to 13%, the energy values ​​show obvious abnormalities!"

"Come over and have a look!"

"go!"

After hearing this, Agostini quickly rushed out the door, and Zhang Shuo followed immediately.

Others also rushed to the CP calculation room.

Tan Zhiming and Yu Fei stayed behind.

Tan Zhiming also stood up and kept shaking his head, "Impossible, this is impossible!"

"I don't know how they did the calculations, but if it turns out that the signal conversion method is ineffective, then there must be something wrong!"

"There is no other possibility..."

(End of this chapter)