"To calculate the energy spectrum of 0-trigluon rubber ball by applying the QCD summation rule, it is necessary to construct a reasonable interpolation ...... first"

Time passed like this on the tip of Chen Zhou's pen.

The study of mathematics and physics is constantly changing.

The literature downloaded by Chen Zhou was also piled up in folders one after another.

Fortunately, Chen Zhou has become accustomed to reading literature on his laptop.

Unless it is a particularly important document, it needs to be studied diligently.

Chen Zhou will go out and print a copy and bring it back.

Otherwise, Chen Zhou, like those old people, likes paper with the scent of ink.

Then the cost of printing materials alone is a lot of money.

It has been more than half a month since Yang Yiyi went to LIGO.

I only came back once, but I only stayed at MIT for one day before returning to LIGO.

According to Yang Yiyi, there is a new round of experiments on the horizon at LIGO.

She has been placed as an intern at LIGO by Professor Rainer Weiss and is fully involved in the preparation of the new round of experiments.

Like Chen Zhou, Yang Yiyi has also been trained by Rainer Weiss.

At LIGO, Yang Yiyi, an intern, also surprised many people.

According to the past practice, international students from China may have better theoretical knowledge.

However, the hands-on ability in experiments is still weaker.

But Yang Yiyi, a student, showed a strong experimental literacy.

Whether it is the familiarity with the laboratory equipment, the grasp of the overall experiment, or even the suggestion of the experiment.

Yang Yiyi's performance is even more mature than some old researchers.

As a result, Professor Rainer Weiss changed his original plan in time.

Yang Yiyi stayed in LIGO for a long time to conduct research and study.

For the high-quality training that Yang Yiyi received, Chen Zhou felt a little lost in addition to the fact that she couldn't stay by her side.

In general, I am still happy for Yang Yiyi.

After all, the two of them are objects of mutual supervision and learning from each other.

Whether it's the past, the present, or the next second.

They all have to be good together.

And so it came to the end of October.

In the dormitory, Chen Zhou continued to study the subject of the rubber ball experiment, as well as the outpost of his grand mathematical blueprint, Gochai.

While studying the peculiar quantum number rubber ball, Chen Zhou once again realized the power of the problem set.

In the case of not much literature, Chen Zhou relied on his strong mathematical knowledge and the direction of the wrong problem set to correct it.

Forcibly explored a research path on the peculiar quantum number rubber ball.

In the process of constructing a reasonable interpolation flow, Chen Zhou found that there were many flows that satisfied the self-selected cosmic symmetry.

However, when the invariance and Lorentz invariance are regulated.

Only a finite number of streams exist, and there are only 4 non-zero minimum dimension interpolated streams.

In view of this situation, combined with the calculation process of QCD summation rule, Chen Zhou obtained the calculation process of interpolation.

That is, j(0→A)--(x)=ig^3,d^adc[g(αβ→t)G ̅(μν→a)(x)][?? α?? βG(νρ→b）][G(ρμ→c)(x)]。

Although this formula seems simple, it is not complicated to calculate.

However, the objects involved in this formula are not simple.

The a, b, and c in this refer to the color index, and μ, ν, ρ, α, and β are the Lorentz indicators.

d^adc represents a perfectly symmetric structural constant in the SUc group.

g(αβ→t)=gαβ—?? α?? β/?? ^2 is a projection operator.

In addition, there is the gluon field strength tensor, the dual field strength tensor of the gluon field strength, and so on.

Rao is Chen Zhou, and he also feels a little big.

Thanks to him, even if he thinks that the goals to be achieved by calculation are small goals, he still does his best and attaches 100% importance to them.

This did not have the consequence of contempt.

After all, the calculation and analysis that needs to be considered here are indeed complex enough.

Therefore, Chen Zhou finally understood why in previous research, there were few studies involving the study of strange quantum number rubber balls.

Chen Zhou sorted out the research materials some time ago.

I threw myself into the next stage of research.

Based on this formula of interpolation, Chen Zhou still needs to carry out more in-depth research.

Speaking of which, Chen Zhou also has to thank Professor Atin and Professor Friedman.

Since the last time Professor Atin approached Chen Zhou, these two professors have continued to teach Chen Zhou in the form of herding sheep.

Although Professor Atin also sent Chen Zhou information on the sub-project, except for occasional email communication.

Basically, it all depends on Chen Zhou's self-consciousness.

And Professor Friedman, even more simply.

Chen Zhou didn't take the initiative to look for him, and didn't send him the data processing and other information after the last experiment.

He will never take the initiative to "disturb" Chen Zhou.

Unless Chen Zhou has not solved the data of the last experiment, it has been delayed until the next experiment in April next year.

Friedman probably couldn't help but ask Chen Zhou what was going on.

Because of this, Chen Zhou has absolutely independent time.

The only thing that might be a little disturbing is that Notte-senpai.

This senior sister, during Yang Yiyi's absence, came to Chen Zhou's dormitory more than once to find Chen Zhou.

It's just that every time she comes, she comes with her own questions.

Chen Zhou couldn't refuse her.

can only answer the question for the other party with the fastest and most efficient efficiency.

Then he said that he was going to be busy, and asked the other party out in a friendly way.

If Noether came, Chen Zhou was immersed in his own world.

Then Noether has to eat a closed door.

And it's a closed door that I don't know how long it will be closed.

But fortunately, Knott later discovered the pattern.

She would confirm Chen Zhou's status in advance before coming to the door to ask for help with the problem.

Of course, Chen Zhou also knew the reason for the other party's tirelessness.

But if it is useless to refuse, then you can only use time to let the other party give up voluntarily.

"Based on the formula of interpolation flow and the two-point correlation function of the starting point of the QCD summation rule, we can obtain the expansion of the product of the operator for two, three, and four gluons......

"|0 here represents the physical vacuum ......"

and the μ of the renormalization scale, Wilson's coefficients a0, b0, c0, c1 and d0 ......"

"These Wilson coefficients need to be calculated by QCD theory, so ......"

Chen Zhou's hand opened quickly, and only the sound of the tip of the pen rubbing the scratch paper was left in the room.

After the calculation of QCD theory, the Wilson coefficient is obtained.

Chen Zhou also entered the next step of formula derivation.

"On the phenomenological side of the correlation function, the hadron spectrum generally adopts the approximate form of the pole plus the continuum, so that the imaginary part of the correlation function can be expressed as: 1/πImΠphe(s)=f(G→2)M(0→2)--δ(s—M(0→2)--)+ρ(s)θ(s-s0)......"

Whether it is calculation or theoretical derivation, although it is quite difficult.

However, after all, it is Chen Zhou's strength.

Therefore, the theoretical calculation and theoretical derivation went quite smoothly.

"The contribution ρ(s) of the excited state and the continuous state in this formula, the threshold parameter s0, and the mass M of the 0-state rubber ball --, the coupling parameter fG between the rubber ball and the vacuum all have a defined ......"

"If you put it in a formula, it is 〈0|j0--(0)|G〉=fGM(0→6)--......"

"Then, by applying the dispersion relation, we get the formula Π(Q^2)=......"

Chen Zhou's thoughts in his mind are extremely clear, and the pen in his hand is also extremely stable when it falls on the scratch paper.

It can be said that this part of the content is a little more complicated.

But just figure out the key point and grasp it.

That's a matter of pure mathematics.

However, Chen Zhou was also a little embarrassed.

He felt as if he had touched something different about the subject of the rubber ball experiment.

And this is thanks to his Lv6 physics and Lv7 mathematics, the two leading brothers and second brothers are tough.

On the scratch paper, Chen Zhou has deduced and completed the formula of the correlation function obtained by applying the dispersion relation.

Looking at the formula in front of him, Chen Zhou slowed down a little and continued to derive.

Take a pen and circle the four subtraction terms in the formula, Π (0), Π '' (0), and Π ''' (0).

All four are subtractions at 0 points.

Therefore, the relationship between the theoretical calculation of the connection QCD and the quality of the rubber ball can be established.

Chen Zhou put down his pen and looked at the time.

When Yang Yiyi came back halfway before, he warned Chen Zhou that although the research was good, it should not be forgotten.

After all, what Chen Zhou is engaged in is not an overnight research work, nor is it an explosive research at the moment of inspiration.

It is the combing of a large number of literature and the grasp of theoretical knowledge.

So, there is nothing going on, after the pause, there is no continuity.

What Yang Yiyi means is that Chen Zhou can concentrate on his own research, but don't forget to eat.

When Chen Zhou received the warning, he couldn't help but complain, he felt that he really shouldn't, in order to show that Yang Yiyi could take good care of himself when he was there, and told Yang Yiyi that he forgot to eat twice in three days.

When Yang Yiyi heard it at the time, she said, "So, when I'm not there, you have to take care of yourself." ”

Chen Zhou responded at the time, but silently complained again: "Anyway, you're not here, and I don't know if I ate it......

When Yang Yiyi heard this, she immediately glared at Chen Zhou: "What did you say?

Chen Zhou suddenly shrank his head and said with a smile: "I mean, if you were by my side, wouldn't I not need to think about this?

"Hmph!" Yang Yiyi snorted, "Anyway, you have to take care of yourself, you know?"

"Well, you too. Chen Zhou finally said seriously, "You are alone in LIGO, you have to take care of yourself, you know?"

Yang Yiyi quipped: "If I don't bring you food, I only care about myself, can I take care of it?"

Thinking of this, the corners of Chen Zhou's mouth unconsciously showed a smile again.

"I don't know, it's been half a month, how about Yiyi over there?"

Shaking his head slightly, he shook the thought out of his head.

Chen Zhou got up and went to wash.

It's already past 12 o'clock in the evening.

He had no intention of staying up late to do research on the subject.

The next day, at the time of habitual time, Chen Zhou woke up.

Stretched, rolled over and got out of bed.

After a brief wash, I went out for a morning run.

"Hey, Chen Zhou?"

On the playground of the campus.

Chen Zhou looked at the beautiful girl in front of him a little inexplicably: "You...... Also for a morning run?"

Nott smiled nicely, "Can't you?"

"Oh, no......" Chen Zhou said casually, "I just haven't met you all this time, I thought you were a whim......"

Knott's expression froze, and he was about to say something more.

Chen Zhou had already taken the lead and ran away.

Noether hurriedly pulled his feet to catch up.

However, what Nott didn't expect was that Chen Zhou's physical strength was so good.

Controlling the rhythm all the time, running on the track.

And she had long since stopped and walked slowly on the runway.

Although he had heard that Chen Zhou had the habit of running in the morning, Nott always thought that such a person who stayed in the dormitory to study difficult problems would definitely not be much better in physical fitness.

It wasn't until I saw it today that Knott realized he was very wrong.

It turns out that a good mathematician not only needs mathematical wisdom, but also a strong physique.

The only thing that may be mistaken by Knott is that she thinks that running is also a way for Chen Zhou to find inspiration.

When passing by Nott, who was walking on the runway, Chen Zhou glanced at this person.

This is obviously an example of an impulsive morning jog......

It turned out that I guessed correctly......

After thinking about it, Chen Zhou stopped caring about this senior sister, and steadily completed today's morning jogging plan according to the rhythm he was used to.

It's just that Chen Zhou didn't expect that this senior sister Knott didn't run a few laps.

But just by walking, I actually walked a few laps.

Seems like she ran one lap more?

Of course, Chen Zhou also knew what her purpose was.

It's just, it's really just useless work.

So, on the way to the cafeteria at the end of the morning run.

Chen Zhou said euphemistically to Senior Sister Nott, who threw an olive branch again and promised to take Chen Zhou into the top alumni association of the Ivy League school: "If you can insist on running in the morning, I will think about it after a year." ”

For this unknown word, Knott said without thinking about it: "Okay!"

This made Chen Zhou stunned for a moment, didn't he mean to help the other party develop a good living habit?

After a pause, Chen Zhou had no choice but to say, "Okay, wait until you stick to it after a year." ”

Notch nodded and said confidently, "I hope you don't break your promise in a year!"

Chen Zhou waved his hand: "Don't worry, when you stick to it for a year, I will think about it!"

After Chen Zhou finished speaking, the two of them had already arrived at the door of the cafeteria.

Chen Zhou raised his feet and walked towards the cafeteria.

Behind him, Noether thought about it and followed.

Although she is not used to eating Chinese breakfast, she does not mind starting to change from this step.

While eating breakfast, Nott thought of one thing, and said in a slightly anxious manner: "Classmate Chen Zhou, can I still go to you to ask questions in the future?"

Chen Zhou chuckled softly: "If it's just a math problem, it's always welcome." ”

He still has his own opinion on the fact that Noether deliberately found time to ask him for advice.

Moreover, after talking to Yang Yiyi.

Yang Yiyi just said that she believed in Chen Zhou.

Back in the dormitory, Chen Zhou changed his clothes and sat down at his desk.

Last night was the subject of a rubber ball experiment.

Well, this morning it's Gochai's turn to study.