Chapter 139 Hyperon CP destruction research and work meeting report
Xue Wenzhuo was in a good mood. He crossed his legs in the office, drank coffee, and watched TV.
Academician Tian Guilin came over and said hello.
This is no big deal.
He said clearly that the program Wang Hao made analyzed the characteristics of particles, but several people questioned it, as if they had done something wrong.
This made Xue Wenzhuo very unhappy.
Although he is a university professor and a physicist, and can be classified as a scientist, scientists also have tempers. The data analysis reports they made were clearly submitted, and the verification said the error rate was less than 0.2%, and
What is there to question?
As for something that could not be done ten years ago, it does not mean that it cannot be done now.
Hasn’t the Kakutani conjecture been proved by Professor Wang Hao?
Professor Wang Hao has many mathematical achievements and has studied many algorithms. What’s the big deal if he created a program to assist in analyzing particle characteristics?
Xue Wenzhuo also had a temper. He took a few people to the computer, opened the program, checked it out, and told them how to use it. Then he said angrily, "If you don't believe it, just try it. This is the program."
"It's okay to use a program for testing, but copying the code is not!"
Xue Wenzhuo felt more and more depressed when he thought about it. Even in front of Tian Guilin, his tone was a bit bad.
Academician, so what?
Tian Guilin is an academician of the Institute of High Energy and a professor of Xijing Jiaotong University. He is not here to participate in the spectrometer detection experiment. They are completely irrelevant.
Several people noticed that Xue Wenzhuo had a bad tone, but they didn't care much. They also knew that they came over to question him and what he did was a bit annoying.
However, they just don't believe it.
In fact, the difference lies in experience and work resume. Several of them are experts from the Institute of High Energy and are engaged in work related to the electron-positron collider. They have been doing research and hope to use computer means to simplify the analysis process. As a result, most of the analyzes have failed.
The method is accomplished using a computer.
This is also the case internationally.
Most of the initial data must be classified manually, and calculations can only quickly screen out those more obvious particle signals.
For example, photons.
The data of most photons is very obvious, and the photons can be screened out by simply filtering.
Other particles are relatively more difficult, especially those that are similar. There is no way to directly distinguish them from the collected information, and they still have to rely on manual calculations.
Now that I heard that Wang Hao has designed a program that can screen the characteristics of particles, I naturally feel very incredible.
That's something they have been doing but haven't been able to do.
The next few people were busy around the program on the computer. They entered some data for verification, and then calculated it manually, and then there was a very surprising discussion, "This group is correct!"
"Academician Tian, this group is also correct. One of the data was calculated incorrectly by me."
"There is an error here, but it is not certain. The data is very vague and I am not sure what particles it is."
"The results seem to be very accurate..."
There were narrations of suppressed exclamation, accompanied by occasional shouts.
Xue Wenzhuo sat next to him with his toes raised. He only watched the operations of a few people to prevent them from copying the code and verifying it.
He couldn't help but feel a little proud in his heart, "I've said it's okay for a long time, but you just don't believe it. Just because you can't do it, doesn't it mean others can't do it?"
"We have all used this program to analyze the data of Group F, and the error rate is very low. Is there any doubt?"
Xue Wenzhuo has been watching from the side.
Several people gathered around the computer to verify it for a long time and discussed it quietly. Finally, someone came over and asked with a blushing face, "Professor Xue, can we copy this program and study it?"
"no!"
Xue Wenzhuo immediately shook his head, "I told you, this is a program designed by Professor Wang Hao, and I have no right to let you guys copy it."
Tian Guilin also came over.
He knew that other people were not so proud, so Xue Wenzhuo would only relent if he told her, so he still said, "Professor Xue, look, your program is of no use to you. Can you copy it?"
Give us a share..."
Xue Wenzhuo continued to shake his head, but still stood up and said, "Professor Tian, what I just told is the truth. This is a program designed by Professor Wang Hao. I can't let you take away other people's things, right?"
"Otherwise..."
Xue Wenzhuo thought for a moment and said, "I'll call Professor Wang Hao and ask."
"Okay, let's ask." When Tian Guilin heard that he still had a change of heart, he quickly asked Xue Wenzhuo to make a call.
Soon, the call was connected.
There was a panting voice and a heavy wind on the other side of the phone. Wang Hao was heard shouting, "Professor Xue, what's the matter? I'm..."
The signal is cut off.
It took a long time before a message came, "What are you talking about? Sorry, I'm at the Great Wall and the signal is not good."
"Something's wrong..."
The signal on the phone is obviously intermittent.
"That's it. Academician Qu from Group 7 wants your code and asked you if you can copy it and study it."
Xue Wenzhuo said it twice in a row, still shouting at the top of his lungs.
As a result, only one sentence came from the other side, "I can't hear what you said. If you have something to do, can you wait until I get back?"
"Dududu~~"
Xue Wenzhuo put down the phone with a bit of embarrassment, looked at Tian Guilin and said, "How about this? When Professor Wang Hao comes back, I can ask him again?"
Tian Guilin was also a little depressed. He even asked for help, but Xue Wenzhuo refused to let go. He called Wang Hao, but the other party's signal was not good and there was no reply.
Then why are you still here?
Tian Guilin said nothing more, waved his hand and walked away. He felt that he was almost losing his face.
Others quickly followed.
When he returned to the office area of Group 7, Tian Guilin immediately said to others, "That program is very powerful, but how many years have we been doing this work?"
"If we are surpassed by a team from a university this time, how shameless will we be? Think about it for yourselves."
"I don't ask for anything else. From now on, everyone must show an attitude. It doesn't matter if the speed is slow, but the quality of the analysis we do must be high."
This sentence touched the hearts of many people.
Several of them are professors at the Institute of High Energy and have worked at the Electron-Positron Collider for many years. Others in the team are at least associate professors at Capital University.
How can such a group of people form a team and together they can't catch up with a newly designed program?
They immediately told others, and everyone worked together to continue working on the remaining analysis.
…
In fact, there is a reason why the people in Group 7 do not believe they can analyze the characteristics of particles.
One is because many of them have not found a way for many years.
In addition, the program designed by Wang Hao is not a small program.
Although it is nothing to him, it contains his understanding of mathematical equations and programming algorithms.
Some of the programs utilize the idea of effective and irrelevant carry screening algorithms.
The last point is unattainable.
Unless one has done in-depth research on valid and irrelevant carry screening methods, it is not easy to understand his algorithm.
This is mainly because effective and irrelevant carry screening is not popular. Even those who specialize in research need a deep mathematical foundation to fully understand it.
Most computer engineers engaged in programming rarely have a very rich theoretical foundation in mathematics.
This is the contradiction.
Therefore, even though the effective and irrelevant carry screening method has been announced and reported at the Zhucheng International Computer Conference, there are still very few people who can understand and apply it.
The program designed by Wang Hao includes content on solving equations, part of which involves fuzzy evaluation methods.
The reason why many people think that particle analysis needs to be performed manually is because some equations cannot be solved and only fuzzy evaluation decisions can be made.
This part is performed using a very clever algorithm.
The program designed by Wang Haocong seems simple. In fact, the core algorithm is very difficult and it is not easy to understand.
Because of this, Tian Guilin and others were very surprised that the program could analyze particle characteristics, and they were unable to create a program with similar functions.
Wang Hao came back only after going down the next day.
They climbed the Great Wall and walked very far on it, but He Yi couldn't bear it first. Wang Hao helped He Yi down, so naturally he didn't have the energy to go back that day.
They slept one night in a hotel on the Great Wall and returned to the experimental base after noon the next day.
After returning, Xue Wenzhuo told Wang Hao what Tian Guilin had found.
Wang Hao thought for a while and said, "It doesn't matter if you let them use it. It's better to copy it and study it. We will finally hand over this program to the Institute of High Energy. If they want to study the program, they can contact the Institute of High Energy after the experiment is completed."
Not only Tian Guilin's Seventh Working Group is interested, but others are also interested.
The experimental review team was very curious about how quickly the Xijing Jiaotong University team could complete the analysis. After asking Xue Wenzhuo, they found out that they used an analysis program.
Academician Zhang Yifang of the Institute of High Energy came over immediately when he heard that Wang Hao had returned to the base.
Zhang Yifang is the general person in charge of the spectrometer detection project and the head of the experimental review team.
After he found Wang Hao, he talked about program analysis and asked, "I already know that the program you designed is very powerful and can directly analyze the characteristics of particles."
"Actually, we have also studied using computers to analyze particle characteristics, but there has been no progress. Can you tell us how you did it? I'm really curious!"
There were a few people listening nearby.
Wang Hao explained nonchalantly, "I thought this analysis work was very complicated from the beginning, and many of it can be solved using computer methods."
"Some of them involve equation solving, which can also be solved using fuzzy calculation methods."
"Actually, the biggest difficulty lies in the overall analysis. I used some of my own algorithmic methods. You may have heard of it. I have studied a new algorithm called effective and irrelevant carry screening. This method can..."
Wang Hao explained a lot in succession, and the people around him nodded while listening, but no one could fully understand.
There are also mathematicians among them, but they are not proficient in computer algorithms, and those who are proficient in computer algorithms are not proficient in mathematics.
However, they still wrote it down carefully. Considering their level, they should be able to understand it as long as they go back and study it.
Zhang Yifang came to Wang Hao not just for the program of particle characteristic analysis, he wanted Wang Hao to make a related report at the work meeting.
Then, he took Wang Hao to visit the data center.
The Electron Positron Collider research base has a data center, but it is generally only open to insiders and related research partners.
If a team sent by a university wants to enter the data center, it must apply, and no one specifically applies to get in. That is meaningless.
Zhang Yifang also explained their work to Wang Hao along the way.
From the words of a physics academician who specializes in spectrometer detection, you can have a more in-depth understanding of the electron-positron collision and universal instrument detection project research.
The biggest achievement of the universal instrument detection research is to develop a high-precision measurement method that can simultaneously measure the decay of positive and negative Corsi hyperons, hoping to discover the 'cp destruction' of hyperon decay. A simple understanding is that
The decay mirror is asymmetric, creating a problem of positive particles.
But so far, the 'cp violation' of positive-negative Corsi hyperon decay has not been discovered. Even if a large number of positive-negative Corsi hyperon decays have been tested, there is still no direct evidence of 'CP destruction'.
"The problem now is that we can only keep experimenting and testing."
Zhang Yifang said, "Our measurement methods are already world-leading, but the problem is that the number of hyperons we produce is not very large. Amrikan's Fermilab has an experiment called 'HyperCP' that produces more hyperons than we do."
A thousand times, our advantage lies in low pollution, but if we want to make discoveries, the number of hyperons is also very important."
"In addition, analysis methods are also very important. We not only need accurate measurements, but also more sophisticated analysis methods. These are the directions of future research."
"Professor Wang, if you are interested in universal instrument detection, you can also participate, view relevant experimental data, and do related research."
"This kind of research really requires very good data analysis experts..."
Wang Hao somewhat understood the reason for Zhang Yifang's enthusiasm.
The particle characteristic analysis program can indeed improve the initial work efficiency of experimental analysis, but in fact, its application is still limited, and it can also be replaced manually, so its importance is not as high as imagined.
Zhang Yifang hopes that he can participate in the data analysis of positive-negative Corsi hyperon decay. Through a large amount of decay data, finding strong evidence that proves the occurrence of ‘CP destruction’ is the goal of the spectrometer detection project.
Wang Hao asked, "How can I participate in this project? Isn't it just a matter of coming to work?"
"Of course not."
Zhang Yifang smiled and said, "As long as you become a cooperating expert on the project, you have the right to view relevant data and access the intranet to view some reports and information. Just pay attention to confidentiality. If you want to do the analysis, you can do it yourself. Many results are
It came out like this.”
Wang Hao nodded understandingly.
Spectrometer detection is not a small project. Relevant scholars have published more than a thousand related papers, and some papers have been published in the magazine "Nature". The papers cannot all be published by the project team. The project has many cooperating scholars.
If you are qualified to view experimental data, you can conduct research and analysis to draw some conclusions based on the analysis of experimental data.
Some of these results are small, some are large, and some are even personal imagination based on data, but in any case, they are also results of data analysis.
Since it would not affect work and life, and it would just have one more authority, Wang Hao naturally agreed.
After submitting the particle characteristics analysis task, he also set up a new task out of curiosity——
【Task 2】
[Research project name: Analysis of CP destruction of positive and negative Corsi superons (difficulty: S).]
[Inspiration value: 0.]
When he saw the difficulty of the research project, Wang Hao regretted it a little.
Previous research and development tasks related to experimental data analysis were the most difficult and did not exceed Level A.
Even if it is A-level data analysis, it is not that easy to do it. S-level difficulty, especially has little relevance to your work and life, and it may take a long time to complete the research.
"But if we can really analyze the data and discover the asymmetry of hyperon decay, it should be a top particle physics achievement, right?"
"That's quite interesting."
Wang Hao still has some expectations.
His previous achievements were all in computers and mathematics. Even materials-related data analysis was the result of data mining, not materials science.
Now we are also doing data analysis, but because it is the discovery of new phenomena, it will definitely be attributed to physical results.
…
The experimental analysis work of each team was completed, and the experimental base organized a working meeting.
The acceptance status of data analysis reports for each division was announced at the meeting.
The other divisions all accept the analysis reports of the corresponding working groups, while Zone F is a bit weird, accepting the analysis reports of the teams from Xijing Jiaotong University and Huzhou University.
Professor Li Zewen, the host of the meeting, announced, "Area F, upper and lower halves, accept the report of the working group of Xijing Jiaotong University led by Professor Xue Wenzhuo, and the report of the working group of Huzhou University led by Professor Du Qisheng."
Xue Wenzhuo and Du Qisheng immediately laughed excitedly.
Xue Wenzhuo also waved to the others. Du Qisheng was not that thick-skinned. He really didn't do anything. He just used the program designed by Wang Hao.
Someone next to him suddenly said sourly to Xue Wenzhuo, "Xue Wenzhuo, shouldn't you call us the Xihai University working group? They all rely on Professor Wang Hao, what does it have to do with you?"
"Relying on others is also a strength. What do you know?"
Xue Wenzhuo replied directly, "We at Xi'an Jiaotong University and Xihai University have no distinction between each other. We do all research together."
"You guys are just so lucky!"
"Next time there is this kind of research, I will definitely bring Professor Wang Hao over."
At the same time, many people looked at Working Group 7, because among the formal working groups, only Working Group 7 did not have any analysis reports accepted.
Tian Guilin and the professors next to him had their faces a little red. They lowered their heads and tried not to speak.
They also tried hard to do analysis, but the final results proved that no matter how hard they tried, the accuracy of manual calculations could not keep up with the program designed by Wang Hao.
What else is there to say?
Fortunately, others didn't know about it, so they cheered up and worked in vain for several days...
Some of them could not help but whisper, "You are just lucky. If there is Wang Hao in your subordinate team, you will be the same..."
"The report from Xi'an Jiaotong University has an error rate of 0.2%! How can we compare?"
This is the truth.
Among all the accepted analysis reports, the Xijing Jiaotong University team has the lowest error rate, and can be directly accepted in any group.
After announcing the employment analysis report, it is time to allocate work tasks.
This content has nothing to do with college teams.
The meeting lasted for an hour and a half. After everyone took a short break, it was time for the final team work report stage.
There are team leaders who come up to give work reports, and there are also professors from the Institute of High Energy who give work reports.
By the third time, Wang Hao's name was called.
Professor Li Zewen said on the stage, "I'm going to invite Professor Wang Hao from Xihai University to give a program report on 'Particle Characteristics Analysis'."
He also introduced, "The Xijing Jiaotong University team and the Huzhou University team used this program to conduct more refined screening analysis, and the error rate can be reduced to less than 0.2%. This is a very important result of computational analysis methods!"
Li Zewen's introduction aroused exclamations from the venue.
Many people know that Xijing Jiaotong University quickly completed data analysis because of a program designed by Wang Hao, but the specific situation is not clear.
They also didn't expect that it would be a program for analyzing particle characteristics.
This surprised everyone in other working groups. Many of them are experts from the Institute of High Energy and have also done a lot of experimental analysis research.
Because of this, they feel incredible.
Particle property analysis?
How can it be?
In their surprise, Wang Hao had already walked to the stage of the venue. He looked at the hundreds of scholars below and suddenly showed an expectant smile.
This is a big scene.
There are hundreds of scholars, including five academicians, with countless professorial levels, and the lowest one has a doctorate degree.
How much inspiration can so many top scholars bring?