The next day, together with Friedman, Chen Zhou prepared to return to MIT.

McIson and Coyle stayed on SLAC's side.

They also need to complete all the tasks assigned by Friedman before they can return to MIT.

Of course, it's also a great opportunity for them to get some exercise.

After all, this is SLAC, the national accelerator laboratory of the United States.

It's just that I'm afraid of comparing everything.

Because early the next morning, McIson and Coyle had to rush to the lab.

So, last night, the two of them came to Chen Zhou's room and said goodbye to Chen Zhou.

Of course, their time was after the young lady at the front desk left.

It's just that when saying goodbye, the two people asked the most about what Friedman and Chen Zhou said.

Chen Zhou didn't hide it from these two people, and briefly told about how he followed Friedman to the beach in the Bay Area.

In addition, it was Friedman who arranged for him to work with Cross on the data.

McIson and Coyle, when they heard Chen Zhou finish speaking, the two couldn't help but glance at each other.

Both of them also saw from each other's eyes that this was indeed the case.

At the end of the workshop, McIson and Coyle were discussing.

Professor Friedman had no reason to bring Chen Zhou over, but instead did not arrange the experimental task.

So, the two speculated that Friedman was expected to arrange a task for Chen Zhou alone.

Well, all speculation is expected.

The eyes of McIson and Coyle that looked at Chen Zhou changed.

They are very envious!

They had been with Professor Friedman for so long, and they had never been treated like this.

On the contrary, Chen Zhou, a newcomer, was so valued by Friedman when he first arrived.

Therefore, the gap between people is often here.

When the people around you are almost the same, you can't see the difference.

But once someone breaks this balance, the gap is simply a vertical blow.

And Chen Zhou is the one who came to break the balance.

In this regard, in addition to envy, McIson and Coyle were naturally a little unconvinced.

As for why a trace?

Mainly because, after reading Chen Zhou's two papers, they still admire them.

If Chen Zhou could do so beautifully in this experiment to find the rubber ball, then they naturally had nothing to say.

However, this experiment was much more difficult than Chen Zhou's previous experiment in China.

So many talented people in particle physics have not solved this problem.

Could it be that Chen Zhou can?

Therefore, this unconvincing mainly comes from the preferential treatment Chen Zhou received.

Thinking so, McIson and Coyle didn't show it on their faces.

They also want to see how much Friedman values Chen Zhou and what kind of results Chen Zhou can make.

At the same time, the two of them secretly made up their minds that they must show Professor Friedman that they are not bad.

Chen Zhou naturally didn't know what they thought, after sending these two senior brothers away last night, he fell asleep beautifully.

Now that Friedman has everything arranged, he is not in a hurry to look at the data.

When he returns to MIT, he can do his research.

When leaving the hotel and heading to the airport, the only thing that made Chen Zhou strange was.

This young lady at the front desk, is there any misunderstanding about herself?

Why did that look at himself as if he owed her eight million?

But Chen Zhou thought about it carefully, he didn't seem to have much intersection with this young lady at the front desk?

Except for last night, she brought herself a supper.

I don't have more than ten conversations with her, right?

Therefore, before leaving, Chen Zhou thought about it carefully.

Finally, I said to the young lady at the front desk: "Thank you for your supper last night, it was delicious~"

Although Chen Zhou thought he was very sincere, after hearing this, the young lady at the front desk looked like she was going to eat people......

Before boarding the plane, Chen Zhou sent a message to Yang Yiyi, as well as Liu Maosheng and Zeng Zigu.

Today is Thursday, September 15th.

That is, the two senior sisters, Julia and Mary, who invited them to participate in the coffee hour.

The coffee hour is in the evening.

Chen Zhou estimated that after rushing back to MIT, he should still be able to participate.

I told Yang Yiyi and a few people in advance.

Yang Yiyi quickly replied to the message and directly said that she would wait for Chen Zhou to come back and go with him.

Liu Maosheng and Zeng Zigu were together, so Chen Zhou received a message from Liu Maosheng.

Liu Maosheng expressed his understanding, and if he had time, he would come over.

If it's too late, there's a chance next week, he'll talk to Julia.

After reading the message, Chen Zhou did not reply, but turned off his mobile phone directly.

The plane is about to take off.

Unlike when they came, when Chen Zhou and Friedman returned, they took a morning flight.

The expected landing time is around 4 p.m.

After the plane took off, Chen Zhou noticed that Friedman was closing his eyes and recuperating.

He also wanted to recuperate, but last night he probably slept so well because of the drink.

So it's not sleepy at all right now.

There was no way, Chen Zhou thought about it and took out the scratch paper and pen.

Since he is not given a chance to sleep, he must take advantage of this time.

Chen Zhou plans to study the theoretical model of the rubber ball.

Moreover, it is not limited to one theoretical model.

Historically, the earliest theoretical model used to study rubber balls was the MIT pocket model.

That's right, it's the theoretical model proposed by the physicists at the Massachusetts Institute of Technology.

This is also the earliest time that multiple rubber ball energy spectra with different quantum numbers have been obtained through theoretical calculations.

That is, how to get that energy range.

Since then, particle physicists have applied many other theoretical methods to study rubber balls.

Common examples include lattice QCD, flow tube model, Coulomb gauge theory, Ads/QCD theory, and QCD summation rules.

QCD stands for Quantum Chromodynamics, a theory that describes strong interactions between quarks by passing gauge particles called gluons.

QCD has achieved great success in describing the phenomenon of perturbation energy regions, and has also been verified by a large number of experiments.

However, there are still many difficulties and a long way to go in the study of non-perturbation problems.

Whereas, the rubber ball, a hadron state composed only of gluons.

It is a typical problem involving non-perturbative quantum chromodynamics.

However, the problem is not solved yet.

However, through these theoretical studies, particle physicists have a deeper understanding of the relationship between the properties of rubber balls and the vacuum structure of QCD.

Chen Zhou will now start with the pocket model and understand the methods of these theoretical studies one by one.

This is also the way Chen Zhou has always liked to solve problems.

To put it bluntly, Chen Zhou is using rich theoretical knowledge to pile up an accurate direction.