Volume 1: Student Life Chapter 481 Theoretically answer the following questions
After arriving at SLAC, Chen Zhou had a brief conversation with Friedman.
Only Chen Zhou and Friedman were present at this meeting.
Even Cross was called out by Friedman.
Therefore, this meeting between Chen Zhou and Friedman later triggered countless speculations.
No third person will ever know what the two said or what decisions they made.
After this meeting, Chen Zhou immediately plunged into the tense and exciting work.
Tension naturally means that time is tight.
At SLAC, Chen Zhou started the retreat mode according to his own research habits.
As for the stimulation, it means that this unknown road really has to go to the end.
No one knows whether what lies ahead is an unsolvable end or the long-awaited Nobel Prize in Physics.
Friedman also arranged a separate dormitory for Chen Zhou to ensure that Chen Zhou would not be disturbed.
Chen Zhou, who did not attract much attention when he came to SLAC before, is now the focus of SLAC's collective attention.
Therefore, Friedman must ensure Chen Zhou's research environment.
Friedman also moved Cross's dormitory next to Chen Zhou's to facilitate timely communication between the two.
Kroos was quite happy about this at first.
He was very happy to be able to learn Chen Zhou's research methods up close.
But after a long time, he found that Chen Zhou's method of secluded research was not at all his ideal white moonlight.
Cross finally understood what Chen Zhou meant when he said on the way back, "This is a lot, it's all the documents."
Just like that, after Chen Zhou started his secluded and hardworking research, Cross was forced to follow in Chen Zhou's footsteps.
Cross himself has never done research in this way before, this is really too hard!
In Cross's view, research should be a combination of work and rest.
Because when you have no inspiration, no matter how hard you try, it's just a waste of time.
But all his preconceived ideas were shattered in front of Chen Zhou.
Cross had never seen Chen Zhou's thinking interrupted, nor had he ever seen him waste time stubbornly.
All he saw was serious research, the kind of research that was done with thought.
There is absolutely no pretense or wasting time sitting there.
Kroos was very impressed by this.
He guessed that Chen Zhou should be on the plane and finalized the overall research ideas.
Otherwise, how could Chen Zhou's research ideas be so smooth, even a little smooth...
Chen Zhou didn't care so much, he had his own research pace.
This was not the first time he had encountered a situation where time was tight and the task was heavy.
It's just that this time it's a little special.
But no matter what, Chen Zhou will move steadily towards his set goal.
This is also the most commendable thing about Chen Zhou.
"The starting point of the QCD summation rule to study the hadron spectrum is to construct a suitable physical flow operator..."
Chen Zhou thought while looking at the information in his hand.
This material is the first batch of documentary materials compiled by Cross.
Chen Zhou and Cross' plan is to organize the research literature on the peculiar quantum number glueballs in each meson state in batches.
Soon, Chen Zhou finished reading the documents in his hands.
After a little thought, he took out a new draft paper and began to study the 0-state strange quantum number glue ball.
Cross, who was in the next room, was also sorting out the second batch of documents.
Originally, Cross planned to work with Chen Zhou, so that the two could communicate directly.
However, after experiencing Chen Zhou's desperate pace, he found it difficult to adapt.
Especially when he picked up the cup to drink water, Chen Zhou was concentrating on studying.
When he got up to go to the bathroom, Chen Zhou was concentrating on his research.
He was hungry and picked up something to eat while Chen Zhou was still concentrating on his research.
In other words, no matter what he did, no matter when he stopped writing or stood up, Chen Zhou was always immersed in research.
This made Cross feel very sad, and he felt that he was holding Chen Zhou back.
So, after much deliberation, Cross finally decided to work separately from Chen Zhou.
He is actually more efficient this way.
In fact, what Cross didn't know was that Chen Zhou had completed the entire data processing and the paper on the colloid ball experiment by himself because he was not familiar with him.
And now, with his help in organizing the literature, Chen Zhou was so happy that he didn't even have time to think that he was a drag.
After all, Chen Zhou finally had someone to help him...
On the 7th day after returning to SLAC, Chen Zhou analyzed the self-consistency of the glueball flow operator based on his research on 0, the strange quantum number glueball, and proposed a glueball flow operator that can self-consistently describe the physical properties of glueballs.
And on this basis, this research idea will be further deepened.
A self-consistent two-gluon and three-gluon strange glueball flow operator was constructed.
The glueball properties of the peculiar quantum numbers 0- and 0+ corresponding to the operators are studied in detail, and the corresponding energy ranges are given.
Among them, the mass of the two-gluon 0-- glueball is about 6.3GeV, and the masses of the three-gluon 0-- and 0+- glueballs are about 6.8GeV and 9.8GeV respectively.
Because these glueball states have exotic quantum numbers, they do not mix with ordinary meson states.
Many theoretical studies have shown that their mixing with multiquark states is also extremely small.
Therefore, they are the most likely glueballs that can be resolved experimentally so far.
But now, Chen Zhou is not satisfied with this. He does not have time to verify and adjust step by step.
He only has this one chance.
In other words, Friedman and SLAC only have this one chance.
So, Chen Zhou began to compare the content of the wrong question collection with the feedback from the theoretical research and continued to conduct in-depth research.
What Chen Zhou needs is a sufficiently complete theory to study the strange quantum number glueball.
This provides absolutely sufficient confidence for the final experimental plan.
As Cross sorted out the second batch of documents, the third batch of documents...
Chen Zhou also began in-depth research again and again, and began to look for the most likely glueball that could be found and detected in each glueball state.
"If we construct a model, borrow experimental data from the literature, use mathematical methods as much as possible, rationalize the mathematics, and then study the mass spectra of 0+-, 1-+ and 2+-odd balls under appropriate interpolation currents within the framework of the QCD summation rule..."
Following a new line of thought, Chen Zhou discovered that there existed a stable 0+-odd sphere with a mass of 4.57±0.13 GeV and a stable 2+-odd sphere with a mass of 6.06±0.13 GeV, but no stable 1-+ odd sphere appeared.
By analyzing the possible generation and decay patterns of these glueballs with strange quantum numbers, Chen Zhou used a collection of wrong answers to further carry out paper-based experimental research.
This is something that could be measured in experiments at SLAC, if it were possible.
Half a month after Chen Zhou arrived at SLAC, Cross took the lead in completing the work of organizing the literature.
After finishing, Cross looked at the results of his work and was a little bit unbelievable.
If this had happened in the past, he felt that he would never have been able to complete the compilation of so many documents so quickly.
Suddenly, a feeling of pride arose.
Cross even had the urge to report to Friedman.
After packing up the materials he had sorted out and sending them to Chen Zhou, Cross stood up and stretched his muscles.
Then he came to Chen Zhou.
Not long after knocking on the door, Chen Zhou opened it.
Seeing that it was Cross, Chen Zhou walked to the desk and said directly: "Professor Cross, I have received the document you sent."
Cross nodded slightly and said, "Okay."
Then, he just walked into the room and watched Chen Zhou sitting at the desk again.
To be honest, Kroos really admires Chen Zhou's perseverance.
Chen Zhou actually repeats this boring research life for long periods of time every day and never feels tired.
Through this period of time together, Cross also feels that Chen Zhou’s current achievements are due to his own efforts.
In other words, he deserved it.
If a talented person, no matter how hard-working he is, does not succeed, who will?
In this world, there is no such thing as getting something for nothing.
Chen Zhou flipped through the draft paper in his hand and said casually: "Professor Cross, if you want to drink water, pour it yourself. I won't pour it for you."
Hearing this, Cross walked behind Chen Zhou and said with a smile, "No, just go do your thing."
Chen Zhou added: "The information you sent me today is the last batch. You have worked hard during this period. You can take a rest now."
Cross was slightly startled. He hesitated for a moment, but still asked, "Is my work all done?"
Chen Zhou put down the draft paper in his hand, turned to look at Cross, and said slowly: "Of course... not yet..."
Cross, who didn't expect Chen Zhou to be in a playful mood, was amused by this sentence and his face changed.
After hearing the whole sentence, he pointed at Chen Zhou speechlessly.
Chen Zhou immediately laughed and said, "Professor Cross, what are you thinking about? I can't handle so many things by myself, right? I need help, right? Don't you see how long I have been staying up late to study?"
Chen Zhou's words were addressed to Cross, but also to himself.
It's a kind of mood adjustment.
This is also a small habit of Chen Zhou.
When you are in a state of intense research for a long time, your mentality will undergo some small changes over time.
At this time, you need an outlet to adjust your mindset.
But Chen Zhou likes to speak out.
Tell everything about the high-intensity research.
Speak to yourself and to others.
Cross looked at Chen Zhou and wanted to ask, but in the end he didn't.
He just grinned and said, "Then I'll wait for you to assign me a task."
Chen Zhou nodded and said, "Go to Professor and ask about the preparations for the collider. Also, report on our work progress."
Cross replied, "Okay, then consider this afternoon as a day off from you. I'll go see Professor Friedman."
"Well." Chen Zhou hesitated for a moment and said again, "Tell Professor Friedman that if you give me another week, I can answer his question theoretically."
Cross was stunned for a moment, then asked in surprise: "You mean, the results of the theoretical research are about to come out?"
Chen Zhou replied: "Almost."
When Cross heard Chen Zhou's words, the pressure on him suddenly eased.
He had no doubt about what Chen Zhou said.
Cross was just thinking that after so many busy days, the results were finally coming out!
After chatting with Chen Zhou for a few more sentences, Cross went to find Friedman. He couldn't wait to tell Friedman the good news.
In fact, the "almost" that Chen Zhou mentioned is not entirely the result of theoretical research.
What he said was that Friedman's questions could be answered theoretically, referring to a series of questions about the glue ball.
Just like whether pure glue balls exist, whether hadron states dominated by glue balls exist, what the decay pattern of glue balls is, and so on.
This is the core content of theoretical research, but not entirely the core content of the jellyball experiment.
The first priority of the current colloid ball experiment is to find the colloid ball and know where it is.
The rest of the content is secondary.
So, from this perspective, the research results that Chen Zhou is about to achieve in theoretical research are greater than the theoretical content required for the jellyball experiment.
After Cross left, Chen Zhou sorted out his thoughts a little and circled today's date "March 1st" on the calendar.
Then write the words "Documentation completed" next to the date.
Two days after the date "March 1st", that is, "March 3rd", there is the estimated date marked by Chen Zhou earlier.
In Chen Zhou's original plan, Cross should have finished document compilation on March 3, and he should have finished all the research on March 10, leaving another 20 days for the final experimental plan.
Unexpectedly, Crosby arrived two days earlier than Chen Zhou expected.
In this way, Chen Zhou and the final experimental plan will have two more days.
Chen Zhou habitually tapped this unique calendar with a pen and smiled.
He collected his thoughts and focused his gaze back on the paper in front of him.
Later that day, Cross brought back news from Friedman that the collider was ready.
After listening to this, Chen Zhou immediately had a plan in mind.
Originally, he and Friedman had discussed that the preparation of the collider should follow the line of theoretical research.
In other words, the corresponding materials required, including the new detector mentioned in Chen Zhou's paper, all follow the ideas of theoretical research.
In this way, progress can be maintained to the greatest extent possible .
"Professor Cross, I'll leave these to you..."
Chen Zhou handed Cross a stack of draft paper, which was his own research material.
Then he began to tell Cross about his research ideas.
Chen Zhou needs Cross to complete basic theoretical analysis along his research lines.
After listening to this, Cross said seriously: "Don't worry, I will give it to you in two days at the latest!"
"Okay!" Chen Zhou nodded with a smile.
After Cross left, Chen Zhou turned around and devoted himself to the final battle.
