Yue Lang knew very well what it meant to have four times the mass of a proton and carry one unit of charge.
This is definitely a signal of a four-quark candidate state Zcs.
He never expected that Li Mu would discover the traces they were looking for so quickly.
Of course, maybe this is just a coincidence, because one data cannot explain anything. A set of collision data, with too few samples, is difficult to use to support such an important discovery, and will not be recognized by the physics community.
But it doesn't matter, Li Mu's search has provided ideas for the follow-up.
As long as they can find more identical samples from the collision data, it will be enough to prove that this thing is the target they are looking for.
Yue Lang was extremely excited.
On the same day, they bought tickets to Beijing the next day.
As soon as the next day arrived, Yue Lang took Li Mu to Shangjing.
…
Beijing, Institute of High Energy Physics.
As the forefront of high-energy physics research in China, the Institute of High Energy Physics can be regarded as the place where all high-energy physicists gather in the country.
After all, only here is there a particle collider for them to conduct research.
Under the leadership of Academician Yue Lang, Li Mu came here for the first time. The buzz everywhere made him feel an academic atmosphere.
Of course, as Yue Lang is an academician in the domestic theoretical physics community, many people here know him.
In an instant, many people greeted him.
"Hello, Academician Yue!"
Yue Lang nodded to these people as a response, and then continued to lead Li Mu towards the research institute without stopping at all.
When they turned the corner, they happened to meet someone.
When this man saw Yue Lang, he was stunned and asked: "Hey, Lao Yue, didn't you just say you were going back to Shanghai for two weeks? How come it's only been three days and you're back again?"
Immediately, he turned his head and looked at Li Mu: "Wait a minute, this is... Li Mu, Lao Yue, it seems that you are asking for leave just for Li Mu?"
Yue Lang waved his hand: "Don't ask so many questions yet, where is Old Wang? I have something very important to see him for."
"Old Wang? You should be preparing for the meeting now. I just want to go to the conference room now."
"What meeting?"
"It's not about the search for the four-quark Zcs. This matter is the most important project of our Institute of High Energy Physics this year." This person said: "After all, the existence of the potential charmed four-quark candidate state Zcs was only reported by various parties. It is just predicted by this model, and as long as it can be found, it will be worth shaking up the entire academic world."
"Now almost all high energy physics institutes around the world have this project on their calendar."
"I heard that there are many research groups at CERN starting to look for it."
"It would be a shame if we started first and couldn't find it for so long, and someone else snatched it away in the end."
Speaking of this, he also sighed: "But the devil knows how long it will take us to find it. CERN has attracted half of the world's particle physicists, and our High Energy Institute is calling for shortage of people every day. So, The huge amount of data gives me a headache just thinking about it, so it’s no wonder that Lao Wang wants to get CEPC out every day.”
Listening to this old friend's complaints, Yue Lang raised his eyebrows, then smiled and patted his shoulder and said: "Don't be in a hurry, don't be in a hurry. There must be a road for the car to reach the mountain, and it will be straight for the boat to the bridge. Maybe we’ll find it in a few days?”
The man glanced at Yue Lang and said angrily: "You can still have such a good attitude."
Yue Lang waved his hand: "Stop talking, let's go to the conference room first."
Then they stopped talking nonsense and quickly walked to the conference room.
On the way, Li Mu also learned the identity of this person. Jiang Yuren, an academician of theoretical physics and a professor at the School of Physics of Qinghua University, was a pillar figure in the domestic theoretical physics community like Yue Lang.
Moreover, Jiang Yuren and Yue Lang also belong to the same research group, and both are responsible for the search for the candidate candidate state Zcs of the hidden charm tetraquark containing strange quarks.
Seeing Jiang Yuren's constant worry and Yue Lang's smiling face, Li Mu shook his head in amusement. As his mentor, it seemed that he was also very good at surprising people.
…
After a while, they walked to the conference room.
There are already many people sitting inside, basically gathering the top high-energy physicists in the country.
There were several academicians sitting in the first row alone.
When Yue Lang walked in, many people immediately greeted him.
"Hey, Lao Yue, you're back today? Hey, this is Li Mu, right?"
"Fortunately, you came early. There is still room here. Come and sit. By the way, Li Mu, come and sit here too."
Seniors in the domestic high-energy physics community expressed their goodwill to Li Mu.
However, Yue Lang was not in a hurry. He waved to these people and then led Li Mu towards a person standing on the podium.
"Old Wang."
The man glanced at Yue Lang and said, "What's the matter? I'm worried right now."
This person is the director of the Institute of High Energy Physics, Wang Fang, a leading figure in high energy physics in China and also has a great reputation in high energy physics in the world.
For the first time, he proposed the "Swap Method" to solve the time-symmetric background problem in time-asymmetric signals, which is of great significance to low-background neutrino experiments; for the first time, he completely calculated the neutron yield and energy spectrum caused by cosmic rays. It has cleared up more than 20 years of international confusion surrounding this issue, and is of great significance to low-background neutrino experiments, proton decay, double-b decay, and the search for dark matter.
Moreover, in addition to his outstanding academic and scientific research capabilities, he is also an excellent particle collider designer. He participated and led the design process of several important particle colliders in China, including those in Beijing. The renovation and upgrade of the electron-positron collider and the design of the Shangjing Spectrometer III were also completed under his leadership.
In the entire particle physics community, this person is definitely the best among the best.
However, this was the case, and he was currently troubled by the most important research project of the Institute of High Energy.
Where is the candidate state Zcs hidden?
Yue Lang had no objection to Wang Fang's impatient attitude, because they all knew that Wang Fang's character was like this. He smiled and said: "It's a very important matter. Let's go outside and talk about it. After listening, you shouldn't It’ll be annoying.”
Wang Fang raised his eyebrows and couldn't help but guessed: "Did you discover something?"
"Let's go out and talk." Yue Lang said, and then gave Li Mu next to him a look.
Wang Fang showed a suspicious expression, but simply nodded: "Okay, then I'll see what you want to say."
Then the three of them walked out under the gaze of hundreds of people in the conference room.
Until five minutes later.
The three people returned to the conference room again under the eyes of hundreds of people.
The only slight difference is that Director Wang, who seems to dislike everyone recently, actually has a look of shock and disbelief on his face.
Apparently he didn't recover.
That look of shock could actually appear on Director Wang's face?
For a moment, everyone present was curious, what did they say when they went out just now?
But at this time, Wang Fang also returned to the podium.
He reached out and rubbed his neck to regain his composure temporarily.
Thinking of what Li Mu had just said to him outside, he couldn't help but glance at Li Mu again.
This young man...
Of course, he had heard about the deeds Li Mu had done before, but he felt that Li Mu was incompatible with him, so he didn't care too much. He might as well put that little thought into research.
However, now, he suddenly had the idea of snatching Li Mu from Yue Lang's hands.
He shook his head with a smile, then looked at the seat below again, and said, "Okay, it's time for the meeting."
"Now, let's invite Li Mu to come on stage to share his findings with everyone."
Wang Fang's words made everyone in the audience unable to react for a moment.
At the beginning of this kind of meeting, they usually go through the process first and summarize the recent situation, so such reports are usually made by Wang Fang, the director.
As a result, when Li Mu stepped onto the stage, they were caught off guard and reacted.
What Wang Fang was talking about just now seemed to be... Li Mu?
Everyone: "???"
"What happened?"
In the seats under the stage, Jiang Yuren and Yue Lang were sitting together. After seeing this, they immediately asked Yue Lang next to them: "What did you say just now?"
Yue Lang waved his hand: "You read it first and then talk."
"We've been brothers for so many years, and you're still hiding it, right?" Jiang Yuren said angrily, but then he quickly turned his attention to Li Mu.
He vaguely felt that something big was going to happen.
Others around him were also talking about this with puzzled expressions, and finally fell silent, quietly waiting for Li Mu's report.
Li Mu walked onto the stage and, with Wang Fang's help, turned on the multimedia.
Insert the USB flash drive and open the PPT I made on the plane today.
On the first page, there are two sets of data.
It is the 1145th combination of 4514 sets of data.
When everyone at the scene saw the two sets of data, they were all stunned.
"The data of group 1145 seems to be..."
There were still many big names present. With their sensitivity to numbers, they all found that this set of data had a sense of immediate visibility.
As the director of the Institute of High Energy, Wang Fang squinted his eyes and said directly: "It should be the energy spectrum of the final state of the decay of charm mesons."
"It's just that the data is not very clear."
"What's next?"
Outside just now, Li Mu only showed him the results of the analysis, but did not show him the process due to time reasons.
So he was also curious about how Li Mu did it.
Zcs signal...
They have been searching for almost half a year.
(End of chapter)
