Into Unscientific Chapter 693

Chapter 693 Things about the SU(5) model

 “Seeking death?”

 Hearing Xu Yun's words.

 Lao Guo, Zhao Zhongyao and Qian Bingqiong on the side were all stunned.

Even though they were prepared for Xu Yunhui to say something risqué, they still seemed a little surprised at this moment.

To know.

 The reason why they found Xu Yun so solemnly was actually because their superiors were worried that something would happen:

 A few days ago, as Xu Yun expected, the capital received a transaction application from Neon.

However, the initial version of the transaction application only mentioned some of the experimental parameters that had been completed. Neon people said that these parameters could be exchanged with money or food.

With Xu Yun's prior reminder, the capital quickly agreed to the transaction and at the same time changed the transaction items to beef and mutton.

Neon had no objection to this, so the two parties quickly reached a basic deal over the phone:

 Huaxia provided 200 sets of data in exchange for 50 cattle and 200 sheep from Neon.

This is still a 'win-win' deal in which both parties think the other is stupid and has his head kicked by a donkey.

 But just when China was preparing to determine the transaction time, Neon suddenly said something and made a new request:

They hope that China can conduct a certain batch of collision experiments according to the magnitude they provide, and for this they can provide a huge interest-free loan.

The amount of this loan was so large that it even alarmed the top leaders:

 970 billion yen! (The exchange rate calculation was wrong before)

 At the current exchange rate, this tmd is worth more than 4 billion U.S. dollars

 So the big leader at that time did not feel happy at all after being alarmed, but thought of a question:

 Could it be that the data given by Xu Yun really made the Neon people discover something?

After all, according to Xu Yun's original plan, the trap he designed would only trap Kyoto University and Yukawa Hideki at most. Why should the Neon people be so desperate?

Yukawa Hideki's influence on neon is indeed great, but it cannot be exaggerated to this extent.

 So the organization quickly made a judgment—the Neon people probably discovered something else.

Although Neon Man's interest-free loan is very exciting, it would be bad if it affects the status of the methadron model in the physics community - after detailed introductions by Xu Yun and other scholars, the higher-ups have already realized that the methadron model Importance of models.

The value of this model is not as simple as how much money it costs. It is directly related to whether China can walk on two feet in the world of applied and theoretical physics in the future!

 That's why Lao Guo and the other three came here today. The organization wanted to confirm certain situations with Xu Yun.

Of course.

 It is not that the organization has distrust of Xu Yun.

After Xu Yun communicated with the writer, the organization had no doubts about Xu Yun's ability. After all, he majored in particle physics.

 The organization is just worried that Xu Yun may have overlooked certain key items, especially for a later generation like him:

Xu Yun's intellectual vision beyond this era gave Xu Yun a congenital perspective of looking down. Although Xu Yun himself did not look down on the ideas and qualifications of anyone in this era, this kind of thinking would more or less make him think. Sometimes a somewhat arbitrary view emerges.

If Xu Yun is a little arrogant and overlooks something, and the Neon people take advantage, it will be a loss.

 The result was unexpected.

Xu Yun actually said that the Neon people are looking for death?

Lao Guo turned his head and looked at Qian Bingqiong, and then asked Xu Yun:

“Xiao Xu, from what you're saying, Neon Man didn't discover some problem that you ignored?”

"certainly."

Xu Yun nodded vigorously and explained:

“Guo Gong, the pit I designed before is an absolute dead end. No matter how much research the Neon people do, there will be no results.”

"For example, this is like someone finding 'evidence' of the flat earth theory hundreds of years ago. Although the evidence seems likely to prove the flat earth theory, as long as they continue to study it, they will find that the final result is still water from a bamboo basket. All in vain.”

“The hints I gave to the Neon Man are equivalent to the evidence of this flat earth theory. It is impossible to find anything useful even if your hair falls off.”

Lao Guo was silent for a few seconds after hearing this. If he still couldn't understand what Xu Yun meant by this time, then he wouldn't be able to hold his current position:

“So Xiao Xu, Neon Man and the others jumped into a bigger pit?”

 “This is more than just a trap.”

Even though there were three big bosses present at this time, Xu Yun couldn't help but laugh a little obscenely. In fantasy novels, he was at least the third elder of the Soul Palace:

“Jie Jie Jie, if nothing else, they stepped into a black hole this time.”

 Then Xu Yun raised the document in his hand towards Lao Guo and explained:

“Guo Gong, look here, the Neon people want us to experiment with the magnitude and measure the parameters.”

“43MeV, 54MeV, 59MeV, 66MeV and 74MeV.”

“The parameters are neutron scattering angle, particle collision cross section, hadron state equation, decay width, S matrix chiral parameter”

“These energy levels and data basically expose their thoughts.”

As a practitioner of theoretical physics, Xu Yun's knowledge of many energy levels and parameters is much higher than that of ordinary people.

 So when he saw the needs of the Neon Man, some judgments emerged in his mind.

The five numbers 43MeV, 54MeV, 59MeV, 66MeV and 74MeV actually correspond to the five energy levels of 43.7MeV, 55MeV, 57.7MeV, 63.3MeV and 71.6MeV in the real collision results.

These five energy levels are still very famous in the entire history of particle model exploration, because special peak spectra appear at these five energy levels.

 At the reporting level, the peak spectrum can basically be linked to the four words "potential particles", but it is only potential.

 There are many cases in history of being misled by false peaks. The most representative one is the 750GeV sign discovered by CERN in 2015.

At that time, some people shouted that the second Higgs particle had been discovered, and others claimed that the supersymmetry theory would be proven soon, but the final result turned out to be just statistical fluctuations.

There is also a wave peak discovered at 12GeV across the sea last year. Nine Ivy League schools spent half a year studying it, and finally found that there was a problem with the computer screen used for the initial statistics.

The same goes for the five energy levels above.

 Develop according to the original history.

The energy levels of these five particles will be calculated in 12 years. After verification by multiple accelerators, it was found that this peak does exist, which once caused a lot of heated discussion.

 Many people believe that these five sets of data can prove the existence of a new physics, like a champion that determines the outcome, and become a new starting point for an era.

But twenty-seven years later, results from Bluhaven Laboratory across the sea killed the competition. They announced that these five wave peaks were just shock peaks.

 Therefore, these five crests are also called Wuzi Buhang in history, and some people call them Void Champions or something like that.

With the advent of the methadron model in advance, it is not surprising that Yukawa Hideki can calculate five energy levels - again, no matter how damned the neon man is, his ability is still extremely top-notch.

Even looking at the current physics community, Yukawa Hideki can be ranked in the top ten. You know, Heisenberg is not dead yet.

Xu Yun had been exposed to these five energy levels a lot when he was studying, so when he saw them, he thought of certain possibilities.

Another thing that caught his attention was:

 Parameters required by Neon Man.

 “Guo Gong.”

Xu Yun pointed to the document in front of him and explained to Lao Guo:

“The two parameters of neutron scattering angle and particle collision cross section are easy to say. They are all data that must be collected in collision experiments. Neon people want them to be normal.”

“Although the hadronic state equation is relatively rare, it is not impossible to explain it if you insist on finding a reason. After all, it is required for multiple state calculations now.”

    “But the remaining decay width and S matrix chiral parameters are rare, which is clearly related to the degenerate subspace.”      Speaking of which.

Xu Yun raised his head and looked around the three people at the scene before making a final judgment.

“So if my prediction is correct, they should have found clues to the SU(5) theory this time.”

 Lao Guo was suddenly startled:

  “SU(5)?”

 Mentioned earlier.

 At present, there are only three groups in the field of particles, namely U(1), SU(2) and SU(3), corresponding to electromagnetic force, weak force and strong force.

Theoretically, gravity should be SU(4), but it does not conform to the expression of the gauge group, so SU(4) is vacated.

 The current SU(4) is a purely mathematical group that can describe the main results of C—G series or direct integral decomposition and does not correspond to a certain physical framework.

 Therefore, the word SU(5) seems to have some summary meaning simply from the naming convention in the physics circle.

  Could it be said.

Looking at Lao Guo who was thinking a little divergently, Xu Yun quickly gave him another vaccination:

“Guo Gong, don't worry.”

“Although the concept of SU(5) sounds very scary, and it is indeed a unified model concept, but.”

“It is actually a wrong framework, and you will not find anything if you continue to study it.”

 At the end.

Xu Yun even had a look of gloating in his eyes

 Grand unified theory.

 This is a topic that has been discussed since the discovery of gravity and electromagnetism. For example, Lao Ai spent the rest of his life tinkering with these two things.

 Later, with the discovery of the strong and weak forces, the importance of this theory became more and more obvious.

It has not been gradually eliminated with the development of particle models. On the contrary, more and more people have paid attention to this theory in later generations.

 For example, in 2023 when Xu Yun traveled through time.

 Witten's M theory and supersymmetry theory are both unified models that have a chance to reach the top and become gods.

But on the other hand.

Although there are many scientists working on unified theories, there are not many unified models that have been eliminated.

 For example, T-theory.

 For example, the universe card game model.

 For example, a fixed rod frame.

 Another example is Xu Yun's grand unification theory developed in the second period of the year.

Another example.

  SU(5) grand unified model.

 Historically, the SU(5) grand unified theory was proposed by Georgi and Glashow in 1974.

The standard model at that time had been delineated into the gauge theory with the gauge group SU(3)×SU(2)×U(1). The general wish of physicists was to hope that the underlying layer would have higher symmetry, and at low energy scales Spontaneous breaking of existing symmetries occurs below.

 So the question becomes what kind of mathematical problem will be obtained after spontaneous breaking of the symmetry group SU(3)×SU(2)×U(1).

So Georgi and Glashow started from scratch to unify the strong interaction, electromagnetic interaction and weak interaction in particle physics into a gauge theory model, and put baryons and leptons in multiple states of the same gauge group. It is called the SU(5) grand unified model.

The derivation mechanism of this model is similar to Yukawa Hideki's earlier process. Only one coupling parameter G5 is needed to establish the corresponding connection between the coupling parameters in the standard model.

From a mathematical point of view, this model does have a kind of artistic beauty.

But it's still the same principle mentioned before. A physical model is useless only if it is mathematically established. It must be supported by sufficient physical evidence.

 So in the later period, the entire physics community tried to verify it.

 As for the verification method.

 The natural choice is to look for protons that can decay—because one of the cores of this model is that protons decay.

 According to the calculations of the SU(5) grand unified model, the decay period of the proton should be only 10 to the thirtieth power year.

Neon Man In order to verify this data, the Kamokande detector came into being.

Their idea is to install tens of thousands of tons of pure water in the Kamiokande detector. If there are 10^33 protons in it and no signs of proton decay are found in a year, the upper limit of the proton half-life can be increased to 10^33 years - because a single The lifetime distribution of particles and the number of remaining particles change exponentially with time.

But it's a pity.

 Kamiokande Laboratory spent a lot of time conducting observations, but the final conclusion was that the limit of proton lifetime should be >10^34 years.

 This is a quite long time, because the age of the universe is only on the order of 10^10 years.

  In other words, the lifespan of a proton is more than one hundred trillion times the age of the universe.

However, the neon people in the original history were not at a loss. After they discovered that they could not find proton decay, they turned their attention to neutrino research, and even gave birth to two Nobel Prizes.

 Georgi and Glashow, on the other hand, were a bit sad. Georgi once had no choice but to say with a smile that his greatest contribution was probably the fact that he left it as homework questions and harmed the students in the academic field behind him.

 So in 2023, when Xu Yun traveled through time.

  SU(5) The unified model is already like an electric eel stepping on a sewing machine. It cannot die any more.

but

●Today's neon people obviously don't know this, and they also chose ALLIN.

To know.

　　It took the Kamokande detector in history nearly ten years to confirm that proton decay did not exist, and that period was almost in the 1990s.

At this time, if Neon people want to confirm that proton decay is wrong, they have to invest at least 20 years.

Not to mention that the whole process requires a lot of material and manpower. For example, there were more than 400 researcher-level scholars in the first phase of the Kamiokande detector.

 After listening to Xu Yun's explanation quietly, Qian Bingqiong, who had been silent for a long time, concluded:

“So Xiao Xu, you mean that the Neon people will only invest a lot of manpower and material resources this time and get nothing?”

 “That's right.”

Xu Yun nodded heavily:

“If we didn't have the methadron model, the Neon people might not be so anxious.”

"But now that we have reached the bottom of the next sixty years of theoretical physics, the Neon People are a little bit ahead - of course, logically speaking, without our methadron model, the Neon People would definitely not have discovered SU. (5) Theory can be regarded as a closed loop of cause and effect.”

“At the same time, we have also proposed the theory of neutrino oscillation, which means that even if the Neon Man changes course midway, it is impossible to achieve any results in neutrinos.”

Then Xu Yun grinned again:

“Of course, since the Neon people are so eager to die, we definitely have no reason to refuse.”

 “So, it's better to do what it wants for once.”

 (End of this chapter)

Chapter end