Great Country Academician

How exactly did the high-mass, high-energy dark matter particles survive from the original universe to today? This is not only a puzzle for Xu Chuan, but also for the entire theoretical physics community.

However, although the problem exists, it does not affect the current research.

The theory of void field dark matter has been highly verified in collision experiments at energy levels from 35Tev to 125Tev. There are indeed dark matter particles of different masses and energy levels in the universe.

These particles are almost imperceptible in ordinary observations and collision experiments, but in collision experiments above 17Tev, a trace can be observed.

And in collision experiments at different high energy levels, the collision data derived and refracted by different types of dark matter particles are different.

These things have verified the theory proposed by Xu Chuan from the side. Dark matter particles not only exist in the universe, but also have rich and diverse types, which may be more than people speculate.

Different dark matter particles constitute different forms of dark matter, which has played a very important role in the development of the universe.

35Tev, 50Tev, 75Tev, 100Tev

The collision experiment data of different energy levels were analyzed quickly, and the Daritz diagrams were continuously sent to the office of the chairman of the CRHPC organization.

As the general person in charge of the collision detection experiment of inert neutrinos and massive dark matter particles, Xu Chuan returned to his busiest state.

Although he no longer needs to participate in the analysis of the original data, the huge experimental data also determines that he cannot personally screen and analyze each segment of the data.

But as the general person in charge of the project and as a scholar, no matter from which angle, he must stand in the most critical position to strictly control the overall link.

Of course, in addition to the overall strict control and detection of the analysis of experimental data, Xu Chuan is doing another thing.

That is to explore the mystery of how massive and high-energy dark matter particles have been preserved from the primitive universe to today.

For him, this is a brand new field.

If he can solve this problem and find out how the massive and high-energy dark matter particles have been preserved from the original universe to today, perhaps many unsolved problems in the current physics community will be solved.

For example, the existence of galaxies like the Milky Way, which contain hundreds of billions of stars, has a great relationship with dark matter.

The supermassive black hole in the core of its galaxy is one of the keys to maintaining the galaxy.

But the supermassive black hole, Sagittarius A, the core black hole of the Milky Way, obviously cannot be formed by the collapse of stars after supernova explosions like ordinary small and medium-sized black holes.

Under normal circumstances, the mass of stars has a limit.

This upper limit is mainly determined by the balance between nuclear fusion reactions and gravitational effects inside stars, which is about 300 times the mass of the sun.

When the mass of a star exceeds this limit, the energy generated by the nuclear fusion reaction inside it is not enough to resist its own gravity, causing the star to collapse and eventually form a black hole.

The mass of Sagittarius A at the center of the Milky Way reaches an astonishing 4.5 million times the mass of the sun.

It is obvious that such a massive black hole at the center of the Milky Way could not have been formed by the explosion or collapse of a star supernova.

Some people may think that there is a lot of interstellar dust or stars in the center of the Milky Way, and Sagittarius A may have such a huge mass by quickly swallowing these materials or merging with other black holes.

It is undeniable that this is indeed possible.

But the swallowing of black holes is not enough to fully explain this problem, because the star-making movement in the center of the Milky Way has been quite intense so far.

If the black hole was formed by the merger of black holes or the large-scale swallowing of interstellar dust and stars in the center of the Milky Way, then the matter in the center of the Milky Way should have been very scarce.

But the facts observed by the astronomical community are obviously inconsistent with this inference.

And if it is considered from the perspective of dark matter, then the formation of supermassive black holes and the prosperous star-making movement in the center of the Milky Way can be perfectly explained.

Because it does not consume conventional visible matter, but the massive dark matter clumps accumulated in the center of the Milky Way like the Milky Way.

How to perfectly explain these theories and make logical mathematical calculations for them is what Xu Chuan has been doing all the time.

The days passed one by one.

In early July, just after the Lesser Heat, Jinling officially entered the hottest weather of the summer. In the office of the chairman of the CRHPC organization, a latest collision experiment acceptance report was delivered to Xu Chuan.

"Professor, this is the complete analysis report."

In the office, the assistant knocked on the door and walked in, gently handed over the report file in his hand, and then said: "In addition, the specific electronic version has been sent to your mailbox by email."

Xu Chuan nodded, took the file and asked: "The analysis report of the 125Tev energy level collision experiment submitted by Nanjing University and Shanghai Jiaotong University, has the acceptance report been arranged?"

The assistant nodded quickly and said: "It has been arranged, at 2 o'clock this afternoon."

Xu Chuan: "Okay, I know, remember to come and remind me at 2 o'clock in the afternoon."

After saying that, he retracted his attention and returned to the manuscript paper spread out on the table, and opened the acceptance report sent by his assistant.

From mid-June to early July, about half a month passed.

With the assistance of major universities and physics research institutions, the data analysis of the collision experiment between inert neutrinos and massive dark matter progressed at a very fast speed.

After all, this is the detection experiment of the most likely elementary particle to be one of the dark matter particles in the theoretical physics community.

Even if he could not dominate the project and was only a part of the screw, many universities and research institutions tried to leave their own names on this epic historical monument.

And this is not the first time that a university or research institution has submitted an analysis report on the 125Tev energy level to him.

As early as three days ago, Harvard University in the United States and Columbia University in Maple Leaf Country submitted an analysis report to the Council first.     But the Dalitz diagram they finally completed was pointed out by scholars from other universities at the acceptance report meeting in the inner field yesterday, and was eventually sent back for revision.

Seizing this gap, Nanjing University and Shanghai Jiaotong University, which are also conducting data analysis of the 125Tev energy level collision experiment, jointly submitted an acceptance report application, which led to today's second acceptance report.

For the detection of inert neutrinos and dark matter, the collision experiment at the 125Tev energy level is the last data that has not yet completed the internal field acceptance report.

If the acceptance reports submitted by Nanjing University and Shanghai Jiaotong University pass the internal field acceptance, Xu Chuan will officially hold a new round of reports to the outside world and submit the detection report results of inert neutrinos and dark matter particles to the entire physics community.

If it fails, the analysis report of the 125Tev energy level collision experiment will be returned to the CRHPC institution for internal competition.

Given that major universities and physics institutions are eyeing this key achievement, it is likely that after being rejected, Nanjing University and Shanghai Jiaotong University will no longer have the opportunity to resubmit the acceptance application report.

Although he has read the acceptance reports submitted by the two and there are no major problems, he is not the only one who can make the final decision on the analysis and judgment of this cutting-edge theory.

Moreover, compared with the detailed inspection of the acceptance analysis reports of Nanjing University and Shanghai University, he himself had more important things to do.

The acceptance report meeting of the 125Tev energy level was held in the Zhonggong Lecture Hall.

The lecture hall was packed with people, and it was dark everywhere.

It is no exaggeration to say that almost all the researchers of the entire CRHPC organization came to the last key result of the inert neutrino and dark matter particle collision experiment.

Of course, it is not only the internal researchers of the CRHPC organization who sat here, but also physicists from other research institutions who came here from afar, and even scholars from the CERN organization.

This is the last high-energy acceptance report meeting of the inert neutrino and dark matter particle detection collision experiment. If it can be successfully completed, it will mean that humans have officially found the dark matter particles that were invisible in the past and understood their characteristics.

In fact, as early as three days ago, the acceptance report meeting held by Harvard University and Columbia University had more scholars participating, but unfortunately they were unable to take off the pearl on the crown.

The report meeting was about to start in ten minutes. Everyone had already taken their seats and were discussing in the conference room.

At this point in the exploration of dark matter particles, no one would doubt whether CRHPC could find dark matter particles.

What everyone was waiting for was just the last few reports.

Looking at the discussion in the meeting room, Witten, who was sitting in the room, looked around the meeting room and said with a little doubt on his face.

"Where are they?"

Sitting next to Witten, Professor Frank Wilczek turned his head and asked curiously, "Who?"

Witten pointed to the seats in the front row. There was a vacancy in the seats of several council acceptance representatives with nameplates.

And the vacancy was the chairman of the CRHPC organization and the general manager of this inert neutrino and dark matter collision detection experiment, Xu Chuan.

The acceptance report of the 125Tev energy level was about to begin, but his student had not appeared yet, which made Witten a little confused.

"Maybe there is something urgent?"

Wilcek thought for a moment and said, "Wait a little longer. He shouldn't miss this acceptance report meeting. After all, he has attended every acceptance report meeting before. This is the most critical one."

Weiteng nodded and said nothing more.

Time passed by minute by minute. Just when Professor Zhao Hu, who was doing the acceptance report of the 125Tev energy level collision experiment at Shanghai Jiaotong University, had already stood on the stage, Xu Chuan hurriedly pushed open the door of the conference hall and walked in.

After greeting the other members of the acceptance team beside him, Xu Chuan put down the documents he brought with him, his eyes fell on the reporter on the stage, and nodded gently, indicating that the other party could start.

On the report stage, Professor Zhao Hu, who saw Xu Chuan finally arrived, was relieved and officially began the analysis report of the 125Tev energy level collision experiment.

The prepared PPT was turned page by page with the sound of the report, and the data analysis of the 125Tev energy level collision experiment was once again seen by all the audience.

Similar to Harvard University and Columbia University, which had submitted the same acceptance report meeting before, when processing the huge amount of raw data, the method of reconstructing the decay process through experimental data was adopted, but some specific data and mathematical tools used for calculation were slightly different.

This method and technology is a common method for the current detection of dark matter particles.

Because in theory, dark matter particles do not have strong interaction and electromagnetic interaction, but only have extremely weak interaction and gravity, which makes it difficult to directly observe them in collision experiments.

The detector can only record all its collision decay products, that is, record the decay characteristics produced after the collision.

By analyzing the raw data and then reconstructing the decay process of the experimental data, if it conforms to a certain decay path of inert neutrinos and dark matter particles, it is classified as a possible generated event.

For the theoretical physics community, this is the dumbest way, but it is also the most effective method at present.

Before the detection equipment and technology that can directly detect dark matter particles are created, they can only understand some characteristics of dark matter particles through this indirect means.

The PPT was shown page by page, and the concise and clear report style and clear ideas made the scholars in the audience nod and praise.

In the venue, looking at the speaker who was a little nervous at the beginning but now more and more calm, Witten said softly: "It seems that the data analysis work of the last energy level collision experiment will have results."

On the side, Professor Wilczek smiled and nodded in agreement: "The rest depends on when Xu Chuan completes the final arrangement."

If the data of the 125Tev energy level collision experiment can successfully pass this acceptance report meeting, then all the energy level data of this collision detection experiment of inert neutrinos and massive dark matter particles will be analyzed.

The existence of dark matter particles is already a certainty, and it is only waiting for the person sitting in the front row of the acceptance team to officially announce it to the public, and physics will enter a new era.

Wei Teng smiled, his eyes fell on the student sitting in the front row, and he said with a smile.

"I believe he won't keep us waiting too long!"