Waiting for the next day, Xu Chuan finally waited for Witten's reply.

"Very beautiful proof method and thesis, the mathematical problems in the proof process are quite quintessential."

"If you haven't figured out which journal to submit this paper to, then I recommend Physical Review, its D series is very suitable for this paper, and it is a semi-monthly journal, and the review speed is fast, if you want to see your paper in the journal as soon as possible."

"In addition, I applied for the LHC proton accelerator for you to solve this problem, the time is the twenty-fifth of this month, remember to prepare visas and passports and other things."

The email replied to was very simple, only three sentences in total, but it made Xu Chuan's whole person instantly excited.

The old professor praised the paper in three sentences, recommended the object of submission to him, and informed him of the application for the use of the proton accelerator.

One of the things that he paid the most attention to was the last sentence, the application for the use of proton accelerators.

That's the most important thing.

As for the object that the old professor recommended him to submit his paper, his choice was the same.

Physical Review is an academic journal founded in 1893.

The journal publishes the latest research results in various aspects of physics, as well as articles such as scientific reviews, and is published by the National Physical Society of the United States, and is divided into ABCDE and other sub-journals.

Zone A is atomic, molecular and photophysics, Zone B is condensed matter physics, materials physics, Zone C is nuclear physics, Zone D is particle, field, gravity, cosmology physics, and so on.

In addition, there are various aspects of physics, such as statistical physics and nonlinear physics.

It can be said that the Physical Review covers all the sub-disciplines of physics, regardless of the popular ones.

However, its requirements for papers are not very high, as long as the article is creative enough and the argument is clear, it can be submitted for review or even publication.

This is a good thing for academic research, but it also causes its impact factor to be low, and there is a phenomenon of irrigation of some papers.

However, the overall quality of its articles is still higher than that of other academic journals.

Because the publication in Physical Review requires that the article be creative enough or solve some important physical problem.

Many major discoveries in physics have also been published in Physical Review, such as the quantum Hall effect, gravitational waves, and so on.

Of course, in the last two years, Physical Review has also begun to limit the number of articles published, in order to seek to increase the impact factor within a certain range.

Overall, though, this is a good fit for the proton radius puzzle.

........

Just after submitting your paper to Physical Review, all that's left is to wait.

Despite the large number of editors in Physical Review, it takes a lot of time to complete the review of a paper that can be said to be 'significant'.

This is not a problem for any one journal, but a common reaction of all top journals when confronted with top papers.

It takes a long time for them to make sure that the paper submitted to them is ready for publication without any problems.

Just like Xu Chuan's "Xu-Weyl-Berry Theorem Accurate Calculation of Parameter Information Methods for Distant Celestial Bodies" submitted to the "Annual Review of Astronomy and Astrophysics", it has been two or three months now, and it has not yet been officially published.

It can be seen how long it takes for a top SCI paper to be published in a journal.

The previous chance that a weak Weyl-Berry conjecture would be able to land in a journal in just over a month is simply irreproducible.

There is nothing Xu Chuan can do about this, this is the rule of the academic world, and it is also a necessary process to ensure that science is correct.

Even if Einstein traveled over to write a paper, I believe it needs to be reviewed.

So after submitting the paper, Xu Chuan returned to his normal life at Princeton University.

On the one hand, he studied number theory and differential equations with Professor Deligne, and on the other hand, he listened to the lectures of other professors.

As for his leisure time, he had far less or almost no leisure time than other Princeton students.

He had hardly ever been to the business cards and invitations he had received from various clubs.

The second Princeton study after rebirth was even more piercing than the first time before his death.

Who made him double cultivate in the 'name' this time?

Compared with domestic universities, Princeton's doctoral degree has a lot more classes.

Although you can't get a PhD just by "learning" what you already know, you can't get a Ph.D. without studying.

In particular, mathematics and physics are two courses that are different from other subjects.

If you want to be successful in the two fields of mathematics and physics, you have to go through the same path as before.

Start with the simplest set or category and move on to the problem that needs to be solved.

You need to use the 'definition theorem' proof between these to form a long logical chain, and it takes a lot of concepts to join into a network of concepts.

To complete an achievement, such as proving a theorem, you need to master all the concepts in this network, otherwise you will not be able to understand what you have written.

This is the minimum requirement for knowledge, but often it already spans several areas of mathematics.

No one is exempt, and that's fair.

Geniuses may be able to find shortcuts faster to skip some of the minutiae, but the most primitive accumulation is impossible to jump over anyway.

.........

The days went by like this, and the time soon came to the middle of July.

After confirming with Chen Zhengping that his experiment was starting on the 18th, Xu Chuan asked Professor Deligne for leave again, and then bought a ticket and flew to Europe.

It's much easier to travel from Princeton to Europe than to go back to China.

Just a few hours is enough, and there is no need for jet lag.

When he arrived in Switzerland, Xu Chuan called his mentor and took a taxi according to the geographical location and found the hotel smoothly.

The city where Chen Zhengping lives is in Geneva, and the hotel he chose is a five-star international hotel.

By the way, when he came to Europe this time, whether it was air tickets or accommodation, he was also reimbursed with Chen Zhengping.

Of course, he can also choose to reimburse Princeton, and I believe that both Deligne and Witten will be happy to apply for this travel fund for him.

.........

Arrived at the hotel smoothly, in the lobby, Xu Chuan was just about to go to the front desk to check in, and a young man with a Chinese appearance walked over.

"Senior Brother Xu Chuan?"

The familiar Chinese made Xu Chuan look at it curiously, and the eye-catching figure made him feel a little familiar, but he didn't remember who it was for a while.

After confirming that he had not found the wrong person, the young man grinned and said, "Hello, my name is Qi Xishao, and I studied physics with Tutor Chen Zhengping in the early years. ”

"Hello, Senior Brother Qi." Xu Chuan hurriedly said hello.

As soon as he was introduced, he quickly remembered who this person was.

Qi Xishao is a researcher in condensed matter physics and high-energy physics.

In 2015, the LHC's Large Hadron Collider Bottom Quark Experiment discovered two new pentaquark particles, confirming the half-century-old prediction that 'there are actually many types of pentaquark particles'.

In this discovery, Senior Brother Qi, who was still an intern at the time, was responsible for part of the data analysis work.

But physics and mathematics are not the same.

Mathematicians, with a piece of paper and a pen, can calculate until they are old.

But in physical experiments, the power of individuals, especially in this kind of large-scale scientific research experimental projects involving the cooperation of dozens of countries, the calculation of one person is too insignificant for the whole project.

However, the results of this research also successfully made this senior brother Qi successfully become an official researcher of the EERN LHC cooperation organization.

Don't underestimate the title of this official researcher, with this senior brother Qi in his early thirties, he can be said to be one of the proper leaders in the young generation of high-energy physics in the domestic physics community.

Although science knows no borders, the CERN LHC Cooperative rarely recruits Chinese as its researchers.

Interns aren't very recruited, let alone formal.

Those who are qualified to come to CERN to do experiments are basically academicians in China, and they are also well-known top physics experts.

Being able to become an official researcher of the LHC cooperative organization at the age of 30, this Senior Brother Qi's strength is still very good.

.........

"Little junior brother, it's your first time here."

Downstairs in the hotel, after checking in, Qi Xishao smiled and walked towards the hotel with Xu Chuan.

Xu Chuan nodded, if it was only in this life, it was indeed the first time he had come here.

Geneva is known as the "City of Peace".

Historically, John Calvin and other Protestants who had been persecuted in their own country had been sheltered here, and Rousseau, Voltaire, Byron and others had begun to fight for human rights in Geneva; Lenin, the great teacher of the proletarian revolution, also worked hard for the realization of his ideals in the "City of Peace".

Today, the city is home to more than 200 specialized agencies of the United Nations and various international organizations.

Such as the International Labour Organization, the United Nations High Commissioner for Refugees, the International Committee of the Red Cross Headquarters, the World Health Organization, the Women's Alliance for Peace and Freedom, the International Telecommunication Union, the World Intellectual Property Organization, the International Meteorological Organization, the International Organization for Standardization, ...... Wait a minute.

It's quite legendary.

Of course, this also has something to do with Switzerland, a permanently neutral state.

Unfortunately, in the future, this country of permanent neutrality eventually broke its reputation for permanent neutrality.

Hearing this, Qi Xishao smiled and said, "Then you have time to take a good stroll, there are many famous classics here, especially the St. Pierre Cathedral in the old city, you can go and pray if you have time." ”

"Pray? Senior Brother Qi, are you religious? Xu Chuan asked curiously.

"No, I'm non-denominational." Qi Xishao shrugged his shoulders and said.

Hearing this, Xu Chuan immediately understood.

This is probably the characteristic of the Chinese people, and everyone who sees it has to bow down.

........

The two chatted all the way to the elevator and soon came to the seventh floor.

Their mentor, Chen Zhengping, and some other physics experts and professors from China basically live on this floor.

There was a knock on the door, and there was a movement from inside.

"Teacher, I've brought someone here."

"Teacher."

Xu Chuan and Qi Xishao said hello at the same time, Chen Zhengping smiled and put the person into the room.

"Sit, come in and have tea."

Chen Zhengping smiled and boiled the kettle of boiling water and made two cups of hot tea: "You two should have known each other just now, right?" I don't need to introduce it any more. ”

"This is my former student, Qi Xishao, who is now an official researcher at the LHC Cooperative."

"Xu Chuan, my current student, is currently studying at Princeton."

said that there was not much introduction, Chen Zhengping still smiled and introduced the two to each other.

After the greetings, Chen Zhengping looked at Xu Chuan and asked, "This time, do you still want to apply for an intern in the Atlas Huaguo Research Group?" Or are you following Witten's side? ”

Xu Chuan thought for a while and said, "I'm sorry, teacher, I'm afraid I haven't joined our country's research group here, on the 25th of this month, Mentor Witten applied for a proton accelerator for me to study the mystery of the proton radius." ”

Chen Zhengping smiled: "It's okay, it's okay, others can't ask for such an opportunity." But then again, how sure are you that this time around? ”

Xu Chuan: "I'm afraid I can't solve the problem of proton radius for the time being, unless I can calculate the radius of the proton from the first principles without using any experimental data." ”

"But obviously that's not something I can do, and what I can do this time is to use that proton accelerator to validate the data used in my paper multiple times."

On the side, Qi Xishao suddenly interjected with a smile: "Senior Brother Xu, you have done a big job this time." ”

Hearing this, Xu Chuan looked over suspiciously.

Qi Xishao smiled and said: "Whether the radius of the proton is 0.87 femtometers or 0.84 femtometers is a matter of endless debate in the physics community, and your paper, to say the least, can also bring hundreds of millions of meters of new scientific research funds to particle physics." ”

"But~"

After a pause, Senior Brother Qi smiled narrowly, and continued: "But I'm afraid there will be a lot of stubborn old guys who will trouble you, they firmly believe that the large proton radius is the truth." Be prepared, by the time your experiment is complete, you'll probably have a lot of trouble. “

"At least, that bad old man from Rishi Frick won't let you go."

The corners of Xu Chuan's mouth twitched, what does this have to do with him.

He doesn't know what the radius of the proton is, but what it actually measures is what it is.

He's just a 'little' push to push the real stats a little bit in advance.

........