The European Nuclear Research Center announced the discovery of a new strange particle structure

Xinhua News Agency, Paris, July 6 (Reporter Chen Chen) The European Nuclear Research Center announced on the 5th that the agency's large -scale strong collision machine (LHC) founder (LHCB) cooperation team discovered a new strange particle structure Including the first pair of four quark state particles observed by the first pair of four quarks.

According to a bulletin issued by the European Nuclear Research Center, Quark is a basic particle and is the basic unit for constituting substances. There are 6 types of quarks, which are called upper, lower, strange, 粲, top and bottom quark. Under normal circumstances, two or 3 quarks can form a strong child together, and the strong son is a sub -atomic particle. For example, the proton and neutrons that constitute the nucleus are strong children composed of 3 quarks.

Some rare strange strong men are composed of 4 or 5 quarks. The theoretical scholars have predicted the existence of traditional strong and strange strong children decades ago. However, it was not until the last 20 years that scientists observed the four quotic detectors and other experiments through the large strong son collision machine and other experiments. Quick or five quarks.

The bulletin said that the newly discovered strange strong son is a five quark particle particles composed of 粲, anti -粲, upper, bottom, and Qicquak. Scientists observe this strange particle during the analysis of the negatively charged B medonic decay. It is the first five quark particles that is known to date. This experiment 'confidence in statistically reached 15 standard deviations, far exceeding the requirements of particle physics on the five standard deviations defined by new particles.

Another new discovery is a pair of four quake particles, which contains a new four quark -state particles with dual -charge with a dual -charge, which is composed of 粲, anti -strange, upper and lower quarks. When a scientist conducted a joint analysis of the decay of band -charged B medon and neutrophils, he found that this new four quark -state particles and its corresponding neutral particles appeared at the same time. It is found that the statistical confidence of these two four quarks also exceeds the standard definition standards of particle physics, which means that humans have observed a pair of four quake particles for the first time.

Chris Pax, a spokesman for the Datak Detector Cooperation Group, said in the bulletin that the nature of the strange strong son is largely unknown. It is found that the new four quark state and the five quarks are measured and measured their nature. Help the theoretical scholar to establish a unified model about the strange strong son, and it also helps to understand the traditional strong son in depth.

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