The Science Fiction World of Xueba

The office fell into silence, Qiao Anhua frowned and thought.

Pang Xuelin looked at Qiao Anhua with a smile, waiting patiently for the other party's response.

After a while, Qiao Anhua raised his head again, looked at Pang Xuelin in disbelief and said, "Professor Pang, how did you think of this?"

Pang Xuelin said: "Inert neutrinos, isn't this a new concept?!"

In fact, as early as the end of the 20th century, some scientists put forward similar conjectures, but most scientists regarded the inert neutrinos as the fourth type independent of electron neutrinos, Muu neutrinos, and tau neutrinos. Neutrinos exist, but it is the first time that Pang Xuelin proposed them as the medium neutrinos in the mutual transformation of three kinds of neutrinos.

This is exactly a theory that Pang Xuelin saw from the neutrino paper in the world of "Whale Song". In the world of "Whale Song", there have been experiments to indirectly prove the existence of inert neutrinos, but they have not been directly observed.

In the real world and the world of "Earth Cannon", the research on sterile neutrinos is even more blank.

Qiao Anhua took a deep breath and said: "Inert neutrinos are indeed not a new concept. I remember decades ago in the physics world, inert neutrinos were still candidates for warm dark matter. Physicists believed that they would not participate in anything other than gravity. At that time, the IceCube neutrino observatory tried to find this kind of neutrino, but failed to find the inertial neutrino in the expected value range... After so many years, the theory related to the inertial neutrino has always been a mystery, In recent years, with the improvement of the accuracy of neutrino observation and the large-scale application of neutrino communication, physicists have never been able to observe the existence of the fourth type of neutrino. Now in the field of physics, basically no one Let's study this thing again!"

Pang Xuelin nodded and said: "Indeed, the existence of inert neutrinos has always been controversial in the physics community, but the absence of observations in the laboratory does not mean that inert neutrinos do not exist."

Qiao Anhua frowned and said, "Professor Pang, do you have any evidence?"

Pang Xuelin smiled slightly and said, "The first evidence is the paper I just showed you!"

Pang Xuelin pointed to the manuscript paper on the table.

This is the theoretical model of inert neutrinos calculated by mathematical means on the basis of his related papers on the world of "Whale Song".

It is precisely because of this theoretical model that is impeccable in mathematical logic that Qiao Anhua listened to Pang Xuelin for so long.

If it was someone else, he would have left long ago.

Pang Xuelin paused,

He continued: "As for the second piece of evidence, Professor Qiao, you should have heard of the neutrino experiment team at the Daya Bay nuclear reactor, right?"

Qiao Anhua couldn't help being taken aback, and said: "Of course, the Daya Bay neutrino experiment can be regarded as one of the most successful fundamental physics achievements in our country at the beginning of this century. This experiment successfully found the third neutrino oscillation mode. Indelible achievements have been made in the history of physics, and today's Neutrino Research Center of the Chinese Academy of Sciences was established on the basis of this team, and even the address is at the original site of the Daya Bay Nuclear Power Plant!"

Pang Xuelin suddenly laughed and said, "Professor Qiao, do you know that the neutrino experiment team at the Daya Bay Nuclear Reactor has another achievement besides finding the third neutrino oscillation mode?"

"There is another result? What result?"

"That was a paper published by the Daya Bay neutrino experiment team in February 2016, which stated that the number of anti-electroneutrinos collected was 6% lower than the theoretical prediction. Although it caused a certain amount of controversy in the physics community Discussions, but without much fanfare. Subsequent neutrino research did not mention this paper, but this paper has exposed the fact that some anti-electron neutrinos may have transformed into incapable Detected sterile neutrinos."

While speaking, Pang Xuelin stood up, came to the window sill, looked at the tall buildings under the neon lights in the distance, and continued: "13.8 billion years ago, after the Big Bang, there was an ocean of light, and positive and negative matter were constantly annihilated and transformed into High-energy photons. As the universe continued to expand and gradually cooled, antimatter died away, leaving behind a world of matter. The standard theory of the origin of the universe holds that matter and antimatter were produced in pairs or in equal amounts at the beginning of the Big Bang. Then the original How did antimatter disappear? Professor Qiao, are you interested in cooperating with me to uncover this secret?"

Qiao Anhua's eyes widened, and his breathing gradually became short of breath.

He knew what Pang Xuelin wanted to say.

Because the answer to this question mentioned by Pang Xuelin is likely to exist in the neutrino oscillation!

Normally, six parameters are needed to fully characterize neutrino oscillations.

θ12, θ23, θ13, (Δm21)^2, (Δm32)^2, δCP.

Among them, θ is the mixing angle, indicating the amplitude of the oscillation, θ12 is the amplitude of the first-generation neutrinos and the second-generation neutrinos, and so on; (Δm21)^2 is the second-generation neutrinos and the first-generation neutrinos The square difference of neutrino mass indicates the frequency of oscillation; δCP is the phase angle of CP destruction, indicating that the probabilities of positive and negative neutrino oscillations are different.

At present, five parameters have been measured, θ12, θ23, θ13, (Δm21)^2; (Δm32)^2, and the last CP destruction phase angle δCP is left, which has always troubled the physics community.

This CP is the charge parity conservation.

C is charge conservation, and P is parity conservation. Scientists have proved that CP is destroyed, and δ is the phase angle of the destruction. If its value is measured to be large, it can prove that neutrinos have destroyed it.

Over the years, scientists have tried every means to measure the size of δ, but they have never been able to.

Although the θ13 measured by the Daya Bay experiment shows the largest CP destruction sign, some scientists even believe that the δCP may be 270°. As long as this is the case, it can be proved that neutrinos cause the asymmetry of matter and antimatter, and matter defeats antimatter.

But after so many years, this is still only a conjecture. Physicists have designed many schemes, but they have not been able to measure the size of δCP.

Add to that the six percent neutrinos lost in the Daya Bay experiment.

The cloud that hangs over neutrinos has puzzled generations of physicists.

However, if according to Pang Xuelin's theory, neutrinos between different flavors need to be transformed into each other through an inert neutrino, then all problems will be solved!

It can even help humans find the coveted dark matter!

Such an achievement will make the basic physics of mankind take a big step forward, and any scientist who participates in this research will leave his name in history.

This is also the reason why Qiao Anhua became so excited after Pang Xuelin said these words.

vertex

txt download address:

phone-reading: