Cao Jun, a researcher at the Institute of High Energy Research of the Chinese Academy of Sciences, explained to science and technology reporters that in order to reveal the 'real face' of the atomic nucleus, physicists would emit particles toward atoms and measure how they collided and scattered. If the energy of a particle is large enough, it can crush the atomic nucleus. It also reveals the information of the subatomic forces that bind the nucleus together. However, in order to obtain the most accurate measurement results, the scientists need to know the exact energy of the particles. Because neutrinos have no electric charges, the above experiments are performed with neutrinos. It is difficult to determine the exact energy of the neutrino.
The neutrinos in the latest experiments originated from the decay of a stationary K-meson (aluminum material produced in the NuMI beamline particle absorber) approximately 86 meters away from the MiniBooNE detector. The high-energy K meson decays into the deuterium with a certain energy range. The micron, but the decay of the stationary K meson will release a single energy neutrino. They try to identify the neutrino from the decay of the stationary K meson, and then use the energy and momentum conservation theorem to infer the energy of these neutrinos.
A joint spokesman for MiniBooNE, Richard van der Voort of Los Alamos National Laboratory, said: 'This experiment is very important for the study of future short and long baseline neutrino oscillations.'
Cao Jun said: 'In the future it is possible to use this neutrino source to study neutrino oscillations or to study the structure of atomic nuclei, such as the contribution of singular quarks to nuclear spins.'
In addition, the MicroBooNE detector located near MiniBooNE also received single-energy neutrino neutrino from a NuMI absorber 102 meters away, which researchers are currently investigating. Because MicroBooNE uses liquid argon technology to record neutrino interactions, Expect to provide more information.
Editor's Editor
The neutrino is the most mysterious member of the basic particle, because it hardly reacts with other particles and is difficult to capture. The puzzles that have not been solved so far in the microscopic world are mostly related to neutrinos. Therefore, whenever we The new method of 'weighing' neutrinos was designed to take a step toward the forefront of basic physics. After the completion of Jiangmen's neutrino experimental device, China will occupy an important position in the research field of neutrino quality.