From all-round academic master to chief scientist

After two days of study, Lin Xiao and Swen Sai set off for the IN2P3 Computing Center.

The IN2P3 computing center is located in Lyon, about 400 kilometers away from Paris.

For Lin Xiao, this was also the first time he left Paris. Of course, he had only been in Paris for less than two months. Going out for a walk was just enough to appreciate the scenery.

And with him, in addition to Swansey, Henry Bernard also came, as well as other members of their research group, as well as other researchers studying high-energy physics in Paris.

Because this time it was not just for their project, there was also an academic seminar on high energy physics, so participating in this seminar was the main purpose, and their project was only secondary.

This seminar is also quite important. Professionals from European universities and research institutions will come, as well as people from other countries.

In the field of high-energy physics, Europe, with its Large Hadron Collider, is still in a core position. Every time the Large Hadron Collider is started, it is a feast for the physics community. The world's high-energy Physics experts will gather here, looking forward to witnessing the emergence of new physics.

This is why China wants to build CEPC, and the government will support this project, in the hope of attracting more talents.

…

In this way, after an hour of sailing, they finally arrived at their destination, Lyon.

This city in southeastern France is second only to Paris in terms of status in France. In addition to its economic status, it is also a city full of historical and cultural heritage. It was already quite prosperous during the Roman Empire. .

After leaving the airport, since they were going to stay for about three days, they went directly to the hotel they had booked, which was also very close to IN2P3.

After checking into the hotel, Svensey held a meeting with people in their research group.

There are seven people in total. In addition to Lin Xiao and Henry, the other four people include Swensey's master's students and several postdoctoral fellows.

"First let me introduce to you our new member, Lin Xiao, who is also the youngest and most talented mathematical genius in the current mathematics world. I believe this point does not need any introduction. In addition, Lin's talent in physics, Don’t underestimate him, I believe he will bring you surprises in the future.”

Swensai introduced Lin Xiao, and everyone present also looked at Lin Xiao and clapped together to express their welcome.

Lin Xiao smiled and nodded at these people in response.

Then Svensey talked about the purpose of coming to Lyon this time, "This time, the first purpose is to hold a seminar the day after tomorrow. At that time, you can also learn from professors from major European institutes or other outstanding peers. one time."

"The secondary purpose is that tomorrow, we will use their computing center to input the data we processed some time ago, test the final accuracy, and see if the research over the past few days has been in vain. "

"The purpose of asking again." Svensey said with a smile, "It's just to have fun and relax. It's rare to come to Lyon. I heard that the Lyon football team will have a home game here in three days. If you want to go too, , come with me, tickets will be reimbursed!”

Hearing this, several students cheered: "Long live the professor!"

Henry also cheered, "Long live the great Professor Spencer!"

Listening to Henry's cheering words, Lin Xiao felt that it seemed quite familiar, as if he had said that a few days ago?

After arranging their schedule for the next few days, the meeting ended and they returned to their rooms.

Lin Xiao and Henry lived in the same room. When they returned to the room, Henry lay directly on his bed, then picked up his phone and read a novel.

As for Lin Xiao, he sat at the table, took out his computer, and started working.

For him, entertainment is learning, and learning is entertainment.

Sometimes he even wonders if he always studies like this, is this a sign of being controlled by the system?

But when he thought about it, he did gain pleasure from learning, which was enough. It cannot be said that the system made him like learning, but that he was controlled by the system.

What's more, I think, therefore I am, and since he is still thinking, then he is who he is.

Of course, sometimes he also wants to know, what exactly is the system?

Unlike when he was seventeen years old and was pleasantly surprised when he got the system, now that he has become a famous young genius in the academic world, Lin Xiao will naturally have doubts about the existence of the system.

However, for now, he can only use a 'high-dimensional product' to explain the system.

I don't know anything about the others.

Shaking his head, there is no point in thinking so much. After all, this is not "Interstellar". The system is the Morse code in it?

Then, turn your attention back to the computer.

The day before yesterday, Professor Swansey sent him the results of their current project. He has not read them all yet. In order to have something to do after going to the computing center tomorrow, he decided to read all the current results before today. over.

In this way, time passed slowly.

Henry, who was lying on the bed, came back from the immersive state of reading the novel and cursed: "The damn author broke the chapter again! There is no little XX in the broken chapter!"

Then he posted in the comment: "Let me tell you, author, there are twenty-four hours in a day, a total of 1440 minutes and 86400 seconds. If you sleep for 8 hours a day and eat for an hour, there are still 15 hours left. , if you code one word in five seconds, you can code more than 10,000 words in a day. Are you sorry that you only code so much now? 』

After sending it out, he then thought about it, he was using French, and the author of this book is Chinese, so it should be translated into Chinese, right?

So he immediately thought of Lin Xiao, and his eyes lit up again after thinking of Lin Xiao. Can he ask Lin Xiao to help him and comment directly on the first website of the Chinese author?

"Lin! Do me a favor!"

He shouted immediately. However, when he sat up from the bed, he glanced at Lin Xiao and froze.

Lin Xiao is actually studying.

Seeing him like this, Henry couldn't help but raise his forehead, God, is this a genius?

Geniuses work so hard, no wonder they are so good.

Then he walked up and came behind Lin Xiao. He took a look and saw that Lin Xiao was looking at the paper on their topic. He shook his head helplessly, why couldn't he be so serious?

However, at this time, he suddenly saw Lin Xiao put down the mouse and looked for something everywhere.

Henry guessed what Lin Xiao was looking for, so he took out a scrap of paper from the side and put it in front of Lin Xiao.

Seeing this, Lin Xiao was stunned for a moment, and then turned to look at Henry next to him.

"You don't read novels anymore?"

Henry spread his hands, shrugged and said: "Seeing that you are still working, how can I have the nerve to continue watching."

Lin Xiao smiled: "I'm going to the computing center tomorrow. Of course I have to understand the topic first."

Then he opened the scratch paper, and after opening it, he was ready to make calculations, "How did you know I wanted the scratch paper?"

Henry said matter-of-factly: "The first law of mathematics and physics is that when you are reading a paper and suddenly you are looking for something, you must be looking for scratch paper."

Lin Xiao: "...it seems reasonable, who said that?"

Henry smiled, "It's also called Bernard's first law."

"Okay." Lin Xiao shook his head with a smile, took out a pen from the side, pointed at a picture on the computer screen, and said: "Look at the coefficients of W and W+, if A3 is used as the W boson horizontal Momentum, we get the differential distribution diagram of this function, is there something wrong?"

Henry looked over and said: "Well, the W boson transverse momentum differential distribution diagram? At this ratio, there is a certain difference between the experimental data standard and our theoretical standard. Looking at the ratio of the image, it is... 2 %? But what’s the problem?”

Such differences are inevitable. After all, one is an experiment and the other is a theory. Of course, there will be gaps.

Lin Xiao shook his head and said: "This difference can continue to be corrected."

"Correction?" Henry was stunned: "2% is already very low, can it still be corrected?"

Lin Xiao didn't say much and started writing on the scratch paper.

【3/(16π)*(dσ^U)/(dpdydmν)……】

…

The purpose of their project is to help obtain more accurate predictions when measuring the mass of W bosons in the future.

The model in front of them is part of their entire theory, that is, the differential distribution of the W boson's transverse momentum. By comparing the theoretical model and experimental data, if the error is reduced, it can help them finalize the entire theory. striving for.

Now there is an error of 2%, which is indeed very low, but it still illustrates some problems.

That is to say, there is still room for improvement in their theoretical model. If this theory can be improved and brought closer to the experimental results, then their future calculations will bring more perfect results.

This is like a slight difference, a thousand miles away, a small error. After countless steps, this error will be infinitely magnified. Especially in high-energy physics, it is necessary to differentiate each quantity. A difference of 2%. If this method is finally used to measure the mass of W boson, it will have a considerable impact on the result in the end.

Therefore, Lin Xiao now wants to modify their theoretical model to reduce this error, so as to continue to narrow the gap in the measurement of W boson mass.

Seeing Lin Xiao writing more and more complex mathematical formulas, Henry's mouth twitched. Sometimes it was difficult for him to understand what these mathematical geniuses were thinking. If he wanted to understand those complex formulas, It took at least ten seconds, but Lin Xiao just wrote it directly without any pause, as if he hadn't thought about it at all.

However, although he could not keep up, Henry was still watching from behind. He wanted to see to what extent Lin Xiao could reduce the error.

In this way, Lin Xiao put aside the pieces of draft paper. After using ten pieces of paper, Lin Xiao finally launched a completely new mathematical model.

Then, he stretched, opened matlab, and entered his mathematical model into this mathematical software.

"nailed it?"

Henry asked.

"nailed it."

Lin Xiao smiled slightly, and then clicked the 'output' button.

And as the results appeared, shock appeared on Henry's face.

This current error——

is 0.01%!

How can it be? !