As the meeting ended, the entire Institute of High Energy Physics immediately became busy.
Under the first example given by Li Mu, all the researchers in the institute immediately gained experience and instructions, changing their previous searching methods like headless flies.
They began to search for what they wanted in this huge data.
In this way, in about a month, they analyzed and studied more than 100,000 sets of collision data, and finally screened out 127 signal cases of Zcs (3985).
In a global sense, the signal significance reaches 5.3 standard deviations.
The number of 127 samples is enough to prove that this is the new particle they are looking for!
In the excitement of all the researchers at the institute, they carefully organized and compiled the entire analysis process and experimental data, and finally formed a paper and published it on the preprint website arxiv.
Obviously, the discovery of any new particle is a major breakthrough for physics.
Therefore, in just a few days, the entire physics community, especially the high-energy physics community, was shocked by this huge achievement of the Huaguo Institute of High Energy Physics.
Since the candidate candidate state of the charmed tetraquark Zcs containing strange quarks was predicted in various theoretical models, the high-energy physics community has been trying to find this particle.
As for why we are still looking for something that has already been predicted?
For the same reason, physics is ultimately an experimental science, even if it still advocates and values the conclusions drawn from logical reasoning.
Especially for particle physics.
Zcs (3985) is not the only particle that has been predicted in particle physics. It is not even the most famous among these predicted particles. For now, it has been used by physicists The three famous particles predicted but not yet discovered are supersymmetric particles, magnetic monopoles, and antimatter particles.
Among those particles that have been predicted and have been confirmed in experiments, the most famous is the Higgs particle - the particle that is nicknamed the "God" particle because it gives other particles mass.
Yes, the weight problem that humans hate is caused by this particle.
Initially, the existence of the Higgs particle was predicted in Higgs' derivation of the Standard Model.
After that, particle physicists went crazy trying to find this particle. To what extent did they go crazy?
The Hadron Collider LHC built at the CERN headquarters is a masterpiece of this madness.
The original design purpose of the LHC was to verify the existence of the Higgs particle, so it was built for 14 years at a total cost of 9 billion euros. This was 9 billion euros around 2000.
And this is just the cost. In the following years, they still need to spend 120 million euros to maintain the hadron collider.
This is how crazy particle physicists are for this God particle.
Therefore, the God particle is also called the "damn particle" by physicists.
But no matter what, for these particle physicists, it is all worth it, because the composition of any basic particle represents the truth of the universe and the truth of the world.
This is also what physicists are pursuing.
Therefore, the same is true for the findings of Zcs (3985).
Because it is also the basic structure of this universe.
…
Outside the CERN headquarters, an interview was taking place on a lawn.
The reporter from bcc held a microphone in his hand and respectfully asked the old man in front of him: "Hello, Dr. Higgs, it is an honor to interview you. What do you think of the strange four-quark hadron discovered by the Institute of High Energy Physics in China?" What do you think?"
Dr. Higgs, yes, this old man is Peter Higgs, who predicted the existence of the Higgs particle.
He is 91 years old this year, but this does not change his enthusiasm for physics research.
So he still sticks to the front line of the Hadron Collider, and even occasionally comes for interviews when he becomes interested.
However, the elderly physicist first gave strict corrections to the reporter's questions.
"It is not a strange tetraquark hadron, but a candidate state of the candidate charmed tetraquark strange hadron containing strange quarks with a mass of about 3.98 billion electron volts."
The reporter was stunned for a moment, and then said apologetically: "Oh, I'm sorry, it was my mistake. You know, this long list of words is really difficult to remember."
Higgs waved his hand: "There's no need to pay too much attention to it. In fact, it's pretty good that you can remember that it's four quarks."
"As for the question you asked, what I want to say is that the discovery of any new particle can give me the same feeling as when the Higgs particle was discovered."
"Excitement and excitement."
"So I have only one thought about the discoveries made by the Huaguo Institute of High Energy Physics, and that is to send my highest respect to express my gratitude for their contribution. "
The reporter was stunned for a moment, and then asked: "Do you mean that the importance of the Higgs particle is equal to that of the four-quark, uh... charmed strange quark particle? But the Higgs particle has given other Particle mass should be more important for our universe. "
Higgs smiled and did not correct the reporter again.
He just tilted his head and asked: "Are you God's illegitimate son?"
The reporter was stunned and did not react, "What? What kind of illegitimate son of God?"
Higgs smiled: "Since you are not God's illegitimate son, then don't speculate on the thoughts of God, or the universe."
"Our universe is composed of various particles that we have discovered and particles that have not been discovered, and they are indispensable."
"It's like there are more than 200 different cells in our human body. Among them, can you tell which cell is useless? Can you imagine what would happen to humans if one of these cells is missing? ?"
"So for any elementary particle, there is no distinction between high and low, because no one can imagine what our universe will look like without any one of them, and whether it will be destroyed on the spot."
"What's more, the new particle discovered by Chinese scientists is definitely of great significance."
"As the first discovery of strange hadrons containing strange quarks and charmed tetraquarks in the entire high-energy physics community, they can deepen our understanding of non-perturbative effects in quantum chromodynamics and help us understand the microstructure of strong matter. This is absolutely monumental.”
Listening to Higgs' introduction, the reporter probably understood the first half, but he could only express confusion about the last sentence.
Of course, reporters are not about understanding what the interviewer is saying, especially for science reporters like them.
It is normal to conduct interviews in a state of confusion and end in a state of confusion.
Compared with this, he should care more about the points worth exploring in this news.
"You're absolutely right and I agree with that."
He first expressed his approval, and then mentioned one thing: "In addition, I also noticed that in the paper from the China Institute of High Energy Physics, a researcher named Li Mu was specifically mentioned in that paper. Their contributions, especially in mathematical analysis, I heard that the first signal example they discovered came from Li Mu’s analysis of the Shangjing Puyi III experimental data.”
"It was this first signal example that gave them guidance and finally achieved this result."
"As far as I know, this Li Mu has long been famous in the mathematics community. He has successively proved several famous conjectures in the mathematics community. In terms of mathematical ability, he is already considered the most powerful candidate for the next Fields Medal."
"So, I would like to ask Dr. Higgs, how significant do you think Li Mu's mathematical ability is to the study of particle physics?"
Hearing this question, Higgs sat up straight.
"That's a good question," he laughed.
"I have read the entire paper, and it especially pointed out the processing methods used by Li Mu in the process of denoising experimental data."
"If their discovery is something that surprises our particle physics community, then the mathematical noise reduction scheme invented by Li Mu is something that surprises all of us particle physicists."
"For us, the particle collider is the gun in our hands, and this noise reduction solution is an accessory that can help us stabilize the ballistic trajectory."
"But it's a pity that the noise reduction solution here is only applicable to their experiment and cannot be used universally."
"So I also hope to invite Li Mu to CERN to help us design an equally excellent noise reduction solution for experimental data."
"I also believe this is what every CERN institute is looking forward to."
"Actually, we have also sent an invitation letter to Li Mu, hoping to hire him to directly serve as a researcher."
"Unfortunately, he doesn't seem to have responded yet."
The reporter suddenly showed surprise: "Did you actually directly hire him as a researcher?"
"Look, your question has lost its quality again." Higgs shook his head. "You probably seriously underestimated the value of a mathematical genius."
"Oh, I'm sorry..." The reporter apologized quickly.
…
But, what is the mathematical genius mentioned by Higgs doing now?
"Still not found..."
In the dormitory provided by the Institute of High Energy Physics, Li Mu had a lot of draft paper spread out in front of him.
The particle they were looking for had been found, and the problem seemed to have been solved.
But both Li Mu and everyone else in the institute knew that it hadn't happened yet.
Because they found that it was only Zcs(3985)+ with one charge, and the particle in the neutral adjoint state, no matter how much data they analyzed, they never found the existence of its signal.
Regarding this situation, other researchers, including academicians, are very calm.
Because they have seen enough and are not surprised.
If they can discover two new particles one after another, they may wonder whether they will use up all their luck in several years.
But Li Mu did not give up.
He has screened the experimental data several times for so long, but still found nothing.
In this regard, he believed that there must be some problem.
"But now from the experimental data, we can no longer find any problems."
"Is there something wrong with the current theory?"
Li Mu couldn't help but have doubts in his heart.
And this question represents a question about the standard model.
(End of chapter)
