Beijing spectrometer III creates a new method of exploring the asymmetry of positive and anti -substances

The Beijing spectrometer III cooperation group implemented an innovative experimental method, providing extremely sensitive experimental probes for the study of material and anti -substance asymmetric. Related research results were officially published in the June 2nd of Nature.

Scientists have speculated that at the beginning of the Big Bang, an equal amount of positive and anti -substances were generated. Why is our universe only material and not found anti -substances? This problem has plagued the scientific community for more than half a century. Are material and anti -material follow different decay rules? Graval decay provides important clues to study the asymmetry of positive and anti -substances: if there are differences in the decay mode of particles and anti -particles, these differences may be the cause of the formation of our rich material world. However, because particle decay is usually induced by a variety of interactions, such as a short life particle -like proton, Kosyo, which contains two heavy quotes and a light quark, with a negative one negative Strong interactions during the process of charge, which occurred in the process of weakness and interactions. How can it recognize which role causes different behaviors of positive and negative substances? The Beijing spectrometer III experiment has recently used the decline of the first -class coupling of the positive Kocosi -pair of the pretty anticocegoson in the quantum entanglement, which successfully separated the weak force that caused the asymmetry of the positive and anti -substances from the strong force. This innovative method and The experimental results have caused close attention to the world's peers in this field.

In the Beijing spectrometer III experiment, the energy generated by the electrons and its anti -particles -positive electron collision is tens of thousands of inherent quality. Electronics and positive electrons are annihilated in the collision, and other particles or particles are generated from the release of the energy. In this new study, scientific researchers use the "spin" information and quantum association of positive and negative Koisi to reveal the asymmetry of positive and anti -substances, that is, "CP destruction". Super child decay is a very promising hunting ground for CP destruction, because their "spin" direction can be directly measured through the decay of "sub -particles". The couplet of the positive and anti -super -level decline of the pair can separate the contribution of strong interaction and weak interaction forces, significantly increased the sensitivity of CP damage measurement. The innovative method of Beijing spectrometer III experiment provides a brand new perspective for finding CP damage.

Although the results given in the article "Nature" show no signs of CP damage, this innovative method brings hope for scientists to confirm or exclude the source of CP damage beyond the standard model in the future. "This is a milestone to understand the asymmetry of positive and negative material. I look forward to more achievements in the Beijing spectrometer III cooperation group." Said Wang Yifang, academician of the Chinese Academy of Sciences and director of the Institute of High Energy Physics. "The sensitivity of the Beijing spectrometer III experiment is much higher than the HyperCP experiment of the previous Fermi Laboratory. It is 1,000 times the sensitivity of the HyperCP experiment alone. Entangled. "Researcher Li Haibo, a spokesman for the BESIII international cooperation group, emphasized.

The BESIII detector is a large -scale high -energy experimental device developed independently in my country. It attracted about 500 scientific research institutions from 17 countries in 17 countries. The BESIII international cooperation group is currently the largest international cooperation group in China. This result is from the result. Commonly completed by Chinese scientists and foreign partners is a model of international cooperation.

Related connection: https://doi.org/10.1038/s41586-022-04624-1

Nature link: https://www.nature.com/articleS/s41586-022-04624-1

Figure 1: Beijing spectrometer III detector

Figure 2: Modern and Anti -Coscopic super -level decline demonstration chart: If the material and anti -substance follow the same physical laws, the decay of the Koshico and the anti -Coseson should be mirror symmetrical, but the space coordinate is the opposite. The link between the mirror indicates the quantum association of the positive and anti -super -superiority

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