Chapter 944: Experimental anomaly of sterile neutrinos
In early June, the circular super particle collider buried hundreds of meters underground was launched.
Fusion power stations deployed nearby continuously transport huge amounts of energy into pipes made of superconducting materials.
The streams of particles are constantly accelerating and colliding, emitting sparks and fragments that cannot be captured by the naked eye, providing huge experimental data for scientific researchers on the ground.
These collision data, measured in petabytes, map out the secrets of the microscopic world that are invisible to the human eye.
These experimental data will be assigned to various groups for further analysis.
Nominally speaking, the sterile neutrino detection experiment is under the name of Xuchuan, and all research institutions, universities, and even individuals working at CRHPC can join the relevant analysis work by applying.
For scholars engaged in the theoretical physics industry, even if they cannot occupy a dominant position in the project and are just a part of screwing, many scholars have actively applied to join.
After all, this is a detection experiment of sterile neutrinos, which are currently the most likely elementary particles in theoretical physics to be one of the dark matter particles.
And even if we put aside the uncertain dark matter, it is still a mysterious particle independent of the standard model.
Its origin and detailed characteristics are also what attract a wide range of physicists.
However, what confuses many scholars involved in this detection and analysis experiment is that Professor Xu Chuan, as the general person in charge of the sterile neutrino detection experiment, has never appeared from beginning to end.
June 10th, the fifth day after the launch of the CRHPC Circular Super Particle Collider.
In the conference room, after finishing the meeting to process the data of this sterile neutrino collision experiment, Lin Feng breathed a sigh of relief, announced the dissolution of the meeting and leaned back lazily on his chair.
When Xu Chuan chose to put down the challenge and leave this collision experiment to their control, they were destined to be busy.
When detecting an unknown mysterious particle, especially when going deep into areas that humans have never understood, everything must be done carefully and verified over and over again before adjusting the experimental direction for the next collision.
Without Xu Chuan at the helm personally handling these tasks, I have to say that there are indeed many opinions within CRHPC.
In particular, some scholars from Western countries were not very convinced of his command.
Fortunately, there is also the board of directors of CRHPC standing behind him, and his former mentor Edward Witten will also help to stand up and so on.
In addition, so far, the detection of sterile neutrinos has been progressing smoothly, so he can barely control the relevant experiments.
In the conference room, after sorting out the report documents in front of him, Edward Witten looked at his other student and asked curiously.
"Speaking of which, I haven't seen anyone from Xu Chuan recently. Has he left here?"
Lin Feng shook his head and said: "That's not true, he is still with CRHPC."
"Um?"
Hearing this answer, Witten showed a trace of doubt on his face and couldn't help but ask: "Then what is he doing? Isn't he even interested in the sterile neutrino detection experiment?"
"This is the result of his discovery many years ago."
Lin Feng thought for a moment and said, "I really don't know exactly what I'm studying. He didn't say anything."
"But judging from the fact that he has been staying in his office recently, he may be working on a certain theory?"
Shrugging, he looked at Witten and continued: "If you want to know, I'm afraid you have to ask him yourself."
"Some theory?"
Witten thought about it carefully, nodded and didn't ask any more questions, let alone said he wanted to go and have a look.
In his opinion, if there were no other more important things, Xu Chuan would not give up the sterile neutrino detection experiment.
Because this is not only the most likely particle of dark matter, but also a clue that he personally found from the LHC collider a few years ago.
Something that would allow him to put aside the sterile neutrino detection experiment and study it would be at least two levels more important than the complete discovery of sterile neutrinos.
In this case, there is no need for him to disturb this student's research work. He will find out when he comes out.
Of course, Witten still had some guesses about what Xu Chuan might be researching.
The cutting-edge theory that allows him to put aside the detection of sterile neutrinos and concentrate on research, apart from the Riemann Hypothesis, is probably the void field theory.
The research on these two cutting-edge theories in mathematical physics, no matter which one has a breakthrough, will be epic in terms of the promotion and development of their respective fields.
...
Xu Chuan’s dedicated research has not interfered with the normal operation of the CRHPC mechanism, nor will it interfere with the experiments of the Ring Super Particle Collider.
Collision detection experiments for sterile neutrinos are still proceeding steadily and orderly, and each collision will bring huge amounts of information data.
These experimental data will be initially processed through the nearby supercomputing center and the cloud computing resources established by the CRHPC institution, and then sent to the hands of various research groups.
The detection of sterile neutrinos is quite difficult.
First of all, the mass of neutrinos themselves is extremely small, almost negligible. Their diameter is approximately between 10^-20 meters and 10^-18 meters, which is much smaller than the size of an atomic nucleus.
More importantly, there is no electromagnetic force between neutrinos and other particles, and there is no strong nuclear force, only weak nuclear force, gravity, and the form of interaction is extremely lonely and difficult to explore.
It is even more difficult to observe neutrinos through a collider.
Because neutrinos barely interact with other matter, most detectors cannot detect them.
Moreover, it is very difficult to distinguish neutrinos among the many particles and radiation produced by the collider.
In order to solve this problem, Xu Chuan teamed up with many top physicists to upgrade and optimize the superconducting ring field detector and kinetic energy trajectory tracking detector of the circular super particle collider.
At the front end of these two large detection trackers, there is an independent detection laboratory. The connection area between the laboratory and the detector is hundreds of meters away, and there are various concrete stone walls, metal plates, etc. for filtering in the middle.
Material.
It is difficult for most particles to pass through such a thick filter device.
But neutrinos are different. Neutrinos with light mass and high energy tend to fly in the direction of the beam tube (called "forward") and escape from the blind zone.
And these neutrinos will pass through the stone wall all the way and then reach the forward detection laboratory.
Here, nearly a thousand layers of core latex sheets are deployed, alternately stacked with tungsten plates, to distinguish different types of neutrinos and measure their properties.
This is one of the most critical detection equipment for the detection of sterile neutrinos.
Of course, in addition to sterile neutrinos, the Forward Detection Laboratory is also tasked with detecting other unknown particles.
For example, other forms of neutrinos, dark matter particles, axions, etc. may exist.
These particles, which also occupy mainstream speculation in the physics community, are also one of the main directions that the CRHPC agency is looking for.
.......
June 15th, the tenth day after the launch of the sterile neutrino detection project.
In the conference room, Lin Feng looked over the compiled experimental data over and over again, frowning.
The detection of sterile neutrinos was quite smooth at the beginning. After integrating Xu Chuan’s research work at CERN a few years ago, they captured more than three neutrinos from the collision data in just one week.
Several signal data once pushed the confidence level above 4.2Sigma.
But as the confidence level increases, and as the collision energy level increases, abnormal phenomena appear.
According to the theory of sterile neutrinos and warm dark matter established by Xu Chuan, although the mass of neutrinos is extremely difficult to measure, it can react with protons at high energy levels to indirectly detect neutrinos.
To put it simply, it is equivalent to using a string of proton beams to randomly collide with sterile neutrinos that are not originally observed in the void.
During this process, the sterile neutrinos will interact with the proton beam, releasing energy all at once, illuminating a nearly spherical area.
This is the detection method proposed by Xu Chuan, and the CRHPC agency also conducts exploration based on this idea.
Theoretically speaking, the energy level of the collision between a sterile neutrino and a fixed type of proton at a high energy level exceeding 17 Tev is fixed.
However, there have been abnormalities in the analysis data during this recent period.
Holding the Dariz diagram in his hand, Lin Feng looked at it several times. Looking at the series of green dots whose energy levels had almost soared to the 28.9Tev level, he couldn't help but rub his head with a headache.
According to predictions, this phenomenon should not occur.
Theoretically, the mass of sterile neutrinos is larger than the three conventional neutrinos. In theory, the energy level born in the proton collision experiment should also be higher.
But no matter how high it is, the energy level of the collision experiments conducted by the collider is controlled.
The mass of sterile neutrinos cannot increase or decrease for no reason, nor will it actively accelerate without being affected by the Large Strong Particle Collider, nor can it suddenly increase its energy level.
But now, its energy level is significantly higher than the 17 Tev energy level, and its magnitude has almost doubled.
The result of this abnormal energy level obviously exceeded everyone's expectations.
Staring at the Dariz diagram in his hand, frowning and thinking for a while, Lin Feng breathed a long sigh of relief and asked: "As for the phenomenon of abnormal energy levels, although we don't have a clear explanation yet. But for
In the exploration of sterile neutrinos, our results are completely consistent with the previous discoveries made by Professor Xu Chuan at the CERN institution."
"This means that at least in the detection experiment of sterile neutrinos, we are on the right path."
At the conference table, Professor Gerner Hamilton from the Germanic Planck High Energy Physics Laboratory shook his head and said: "But if the energy level data contains abnormal energy levels, it is impossible for us to accurately make a prediction with a confidence level of more than 5 sigma.
Dalizitu.”
"The appearance of these low-energy sterile neutrino collision signals with protons cannot be ignored as background noise."
Hearing this, Lin Feng pinched the bridge of his nose with a headache, and with some tentative opinions, his former mentor Edward Witten asked: "Professor Witten, what do you think?"
On the side, Edward Witten held the report document in his hand and said with some thinking:
"Is it possible that, like the three conventional neutrinos, electron neutrinos, muon neutrinos and t neutrinos, dark matter can produce different types of neutrinos under high-energy collision interactions?
son?"
Across the conference table, Professor Gurner Hamilton groped his chin and said, "Another kind of neutrino? Or some kind of dark matter particle that we haven't discovered yet?"
"This is indeed very possible, and the possibility is not low. After all, there are three types of conventional neutrinos. Theoretically, there may be more types of dark neutrinos formed when dark matter interacts."
"However, the current exploration data for it are too scarce, and we need more time data to analyze it."
After a slight pause, he looked at Lin Feng and asked with a smile on his face: "Mr. Director Lin Feng, when is the next collision experiment of the CRHPC Ring High Particle Collider scheduled?"
Lin Feng: "The collider's pipes, superconducting annular detector and forward detector all need maintenance. It will take about ten days before we can start the next collision experiment."
This chapter is not over, please click on the next page to continue reading! Hearing the answer, Professor Gurner Hamilton smiled slightly and said: "If I remember correctly, according to the rules of the CRHPC institution, scholars or researchers who discover a new phenomenon
The institution has priority in applying for the next collision experiment of this type of phenomenon."
This kind of priority, whether it is at the CRHPC institution or the former CERN institution, can be regarded as a means to protect the rights and interests of researchers who discover new physical phenomena.
After all, it is impossible for a scholar to discover an abnormal phenomenon and achieve certain results, only to be picked by others through connections and take away the final glory.
Lin Feng nodded and said, "Of course."
Hamilton: "On behalf of the Planck Institute of High Energy Physics, I apply to the directors of the CRHPC institution for the next observation experiment on the abnormal energy level of high-energy sterile neutrinos."
Lin Feng: "You need to go through the application process..."
Before he finished speaking, the door to the conference room was suddenly pushed open.
Xu Chuan, who had not participated in the sterile neutrino exploration experiment for almost a month, walked in from the door and attracted the attention of many people.
"Damn it, are you finally willing to come out of your office?"
Seeing Xu Chuan, Lin Feng, who was presiding over the meeting, was stunned for a moment. In surprise, he spoke with a tone that sounded like a deep-seated and resentful woman.
In the past half month or so, he was almost exhausted from being in charge of the sterile neutrino collision detection experiment on behalf of Xu Chuan.
Not only is he responsible for the original experimental data analysis work, after all, he is also a member of the sterile neutrino detection experimental team, and he also chairs various experimental meetings, organizes relevant data, etc.
When he got busy, Lin Feng really wanted to go to Xu Chuan's office to take him out and let him do his own thing.
Do it, do it, do it... I will do your sister's research all day long!
Have you ever considered other people’s feelings?!
Xu Chuan smiled and nodded, saying: "I have received the latest sterile neutrino detection experiment data. Come and take a look at the situation."
Seeing the dark circles and tiredness on Senior Brother Lin's face, he smiled and patted the other person's arm, saying: "You have worked hard during this period, I will take over the next work."