Xu Chuan shook his head, skipped the topic and asked, "I'm afraid I don't have time for the time being. What are you studying over there recently?"

After 18 years of research, he is still clear about it, but after he stepped in and changed some things in the past two years, he doesn't know if the arrangements there have changed.

Lin Feng shook his head and said, "It's still the same. At and most of the time are studying the Higgs boson, and hb is looking for quarks."

"As for AIE, I heard that they conducted a high-energy collision experiment some time ago to simulate the shape of the original universe after the Big Bang and analyze the properties of quark-gluon plasma."

"But it seems that their luck is not very good, and no discovery has been reported so far."

Hearing this, Xu Chuan's heart moved and he asked, "Has Hua participated in the AIE experiment?"

If it weren't for Lin Feng, he would have almost forgotten one thing.

18 years was the year when he became famous in the physics world in his previous life. The reason was because he discovered traces of the existence of sterile neutrinos.

Neutrinos, also called neutrinos, are a type of leptons and one of the most basic particles that make up nature.

It is small in size, uncharged, and can freely pass through the earth. Its spin is 1/2. Its mass is very light, some are less than one millionth of an electron. It moves at close to the speed of light, and its interaction with other matter is very weak.

Known as the "invisible man" in the universe.

It took the physics community more than twenty years from predicting its existence to discovering it.

On November 23, 2013, scientists used a particle detector buried under the Antarctic ice to capture high-energy neutrinos originating from outside the solar system for the first time.

As of today, the physics community has confirmed that there are three different types of neutrinos discovered: electron neutrinos, muon neutrinos and t neutrinos.

However, in 1995, the United States' ND experiment proposed the "possible" existence of a fourth neutrino - the sterile neutrino.

Sterile neutrinos are another state of neutrinos, which involves some relationships between particles.

Ordinary neutrinos are also called active neutrinos, and their concept was first proposed by Austrian theoretical physicist Wolfgang Pauli.

They are almost everywhere and can be produced in the Big Bang, galactic activity, supernova explosions, the center of the sun and the interior of the earth, as well as in nuclear reactors and particle accelerators.

Sterile neutrinos are hypothetical particles that have no reliable experimental evidence. They were first proposed by Italian theoretical physicist Bruno Pontikov around 1968.

It refers to neutrinos that do not participate in the standard weak interaction process, and are therefore generally understood as new types of particles that transcend the third-generation lepton framework of the Standard Model.

Compared with ordinary active neutrinos, the discovery of sterile neutrinos is also related to another cosmic substance-dark matter!

Because theoretically, it does not participate in any interaction except gravity, and is a candidate for warm dark matter.

If the existence of sterile neutrinos can be found, it can prove the existence of dark matter in the universe.
Chapter completed!