Hearing Xu Mang's words, bursts of exclamations erupted at the scene, and the atmosphere at the moment ignited instantly, everyone's eyes were staring at Xu Mang, with a little trepidation and a little expectation, could it be... Are you going to witness history today?

If Academician Xu can narrow down the search for Majorana neutrinos, then there is a chance to surpass the existing particle physics and become one of the major breakthroughs in modern physics, of course... This is only at the most ideal stage, after all, what Academician Xu said just now... He's going to spend three hours explaining that.

Three hours...

Since Ettore Majorana published a paper 90 years ago hypothetizing the existence of this particle, there has been no evidence to prove the existence of this particle, and many people now think that this hypothetical particle of more than 90 years should no longer exist, because it is difficult to determine a range.

Outcome...

Academician Xu suddenly said... He's got it, seriously... If it weren't Academician Xu standing opposite, just by virtue of what he said just now, this kind of arrogant self-confidence to the extreme would definitely be educated in minutes, but he was Xu Mang!

The greatest physicist in the world at the moment, the god of physics today... In vain, he said that if he can narrow down the search range of Majorana neutrinos, then he will definitely be able to narrow it down, no suspense!

"Damn..."

"I said why did my left eyelid keep jumping today, it turns out that I can witness the birth of a miracle today!" He Weijie's companion said with a frightened face at the moment: "Weijie... What do you think of this Majorana neutrino? Even though this is the field of high-energy particles, I remember that you were involved in a research project on high-energy particles. ”

He Weijie heard the words of his companion and was speechless for a long time... After being silent for a long time, he said seriously: "I don't know what to say... There are no known Majorana fermions in elementary particles, and the nature of neutrinos is still poorly understood, unless Academician Xu has a way to solve the two-β decay. ”

"Really?"

"How difficult is this?" asked He Weijie's companion curiously.

"How can I say it..."He Weijie frowned and said seriously: "Because once the experiment proves that neutrino-free binary β decay does exist, it will make people's understanding of the properties of neutrinos a big step forward. You should know how difficult it is!"

Hiss!

It's terrifying!

He Weijie's companion's eyes changed, and he became a little excited and eager, and said, "That... So if Academician Xu provides a solution today, this... This is basically Academician Xu invincible... There will be no suspense about the unprecedented triple Nobel Prize in Physics!"

"Hehe..."

"Let's see..."He Weijie smiled bitterly, in fact, even if Academician Xu does not solve the problem of neutrino β decay, he can still win this year's Nobel Prize in Physics.

"Anyway, don't get too excited... This problem is really difficult and difficult, in fact, I don't believe that Academician Xu can solve this problem. He Weijie said solemnly: "It's really too difficult and too difficult, in short, I have reservations about it." ”

"Really?" He Weijie's companion thought for a while, and said helplessly, "Maybe..."

"Really..."

"First of all, neutrinos are chargeless particles produced by the decay of neutrons through β, which interact with other particles through weak force. He Weijie said seriously: "Although there is now experimental evidence that there are three types of neutrinos with different masses, their individual masses have been determined. ”

"Neutrino binary β decay is a special case of the decay process of ordinary nuclear β... In this process, neutrons in the unstable nucleus emit electrons and antineutrinos and turn into protons. He Weijie said: "When the atomic nucleus does not decay through a single β decay, it is emitting a β decay. ”

"To put it bluntly..."

"Double-β decay is actually two single-β decays, but there is no ability to observe the intermediate state of two single-β decays. He Weijie said: "This is really too difficult... Someone else has studied it all their lives and can't solve it. ”

That's someone else!

But Academician Xu is not a human being! He is a god!

He Weijie's companion said: "Don't be so pessimistic, in case Academician Xu really solves it... In the future, we will be a world leader in this field, and with the large collider being built, that advantage is too great..."

Then

Xu Mang suddenly turned around and wrote a formula on the blackboard, which seemed familiar... But I can't remember where I've seen it, which caused a lot of confusion to all the students present, obviously familiar... But I can't remember it at all.

"Huh?"

"What is this?" He Weijie's companion asked with a confused face, "Weijie... Do you understand?"

“...”

"I don't understand. He Weijie shook his head, also frowned and said: "This may be a company, or it may be an equation, forget it... Let's stop researching, wait for Academician Xu to explain it himself, it's useless to think about it now. ”

"Hmm!"

moment

There was a lot of new content on the blackboard, and at first everyone could understand the rest of the content except for the 'formula' that they didn't know at all, but as time slowly faded, the rest of the content was basically not understood.

now

He Weijie's friend's expression gradually became a little confused, he secretly glanced at his pelvis, and found that He Weijie was also a little confused, and asked cautiously: "It's over... I... I don't seem to be able to understand what Academician Xu is writing. ”

His words are very straightforward, directly explaining his current predicament, and he really can't understand it... Not to mention understanding.

At this moment,

He even thinks he might be mentally retarded, if he takes these things apart one by one and becomes a number... These numbers and characters can be understood, but when they are recombined by Academician Xu, they mean something else entirely.

Gap!

Almost all of them are people of the same era, why is Academician Xu so young, he has already become a Nobel Prize winner in physics, or the kind that has been won for two consecutive terms, and he is sitting here watching him write a 'book from heaven'.

"Indeed..."

"It's a little hard to understand. He Weijie didn't know how to answer his friend's words, so he could only pretend to be calm and said: "From my cognition... There's a lot of math involved, and... I don't think it's just a matter of calculation. ”

"Not a calculation?"

He Weijie's friend was stunned for a moment, even more confused, and hurriedly asked, "What is Academician Xu doing?"

"I don't know..."

"Let's take a look at it again. He Weijie smiled bitterly.

meanwhile

Fang Jun, Hua Yanfeng, Zhong Yuan, Li Aimin, Fan Zhilong and many other professors have come to this multimedia professor, of course, Xu Yang and Xu Man, but the two little guys are sleeping in the arms of other people's young sisters, and these people are standing in the last row.

"What is this?"

"What exactly is he doing?" Li Aimin asked curiously, "There is a problem... Definitely problematic!"

Not to mention these students,

Even the few professors present couldn't understand what Xu Mang was doing, saying that it was calculating... But there is no tangible result to be seen.

But

Fang Jun, as the former leader of Xu Mang, knows this person's nature very well, and he is afraid that the world will not be chaotic, although he is now a great scientist, but so what? The deepest essence of human nature will not be changed.

Three minutes later,

Xu Mang has already written a blackboard, and then pushed this blackboard up, the original blackboard was removed, and he began to be confused about 'calculation' again, at this time Xu Mang gradually had the feeling of coaching.

“...”

"It seems like an experiment... It's just a matter of turning the steps of the experiment into numbers. Fan Zhilong noticed a hint of abnormality, he had worked with Xu Mang for the longest time in the past, and he knew Xu Mang's style... I like to use mathematics to explain everything, and of course this is perhaps the habit of theoretical physicists.

Experiment?

Is this an experiment?

Everyone was stunned for a moment, and then focused on the blackboard again, and in the face of this dense calculation, they had a new understanding, and tried to interpret it in another way, and gradually these people felt those shocks.

But these people didn't fully enter it, only the tip of the iceberg.

Another ten minutes passed,

Xu Mang wrote down the last number, turned to look at the silent classroom, and at this moment all the students were still immersed in confusion, they looked at the blackboard in a daze, trying to decipher the cognition beyond the existing framework.

However...

How could it be so easy to understand what the God of Physics wrote, if it weren't for Xu Mang's explanation, I'm afraid I wouldn't have understood what was written on it for the rest of my life.

"Ahem!"

"Don't try to understand the above. Xu Mang coughed lightly and said indifferently: "If you don't reach the corresponding level, it's impossible to interpret the specific content, so... I hope that after my explanation today, it will inspire you to desire the unknown. ”

Words fall,

Xu Mang pointed to the original formula-like thing, and said seriously: "Actually, this is the core content, and the rest of the things are to prove this formula..."

What the?

Wrote nearly two blackboards,

The result is to prove that the seemingly simple formula?

Many people are even more confused, what is this formula...

"To narrow the search for Majorana neutrinos, first solve the mystery of the decay of the β. Xu Mang said seriously: "Actually, to a large extent... It can be explained by including two nucleons in the decay, say two protons decay into one proton and one neutron, or one proton and one neutron decay into two neutrons. ”

"But due to the combination of nuclear associations and interactions involving decaying nucleons, this additional processing condition presents an extreme computational challenge. Xu Mang glanced at everyone present and continued: "This question... It can't be solved in the past. ”

Don't...

Everyone's expressions became surprised, and they stared at the mysterious figure on the blackboard.

"That's right!"

"This is the key to unlocking the mystery of the decay of the twin β!" Xu Mang knocked on the blackboard and said in a flat tone: "The next two and a half hours... I will lead you to the mysterious world of neutrinos!"

......