According to foreign media reports, the Large Hadron Collider (LHC) recently detected a new subatomic particle during an atomic crushing experiment, which is a beautiful particle. The newly discovered particles have long been predicted by theory, but have never been discovered.
The new particle is called Xi (b) * and is a baryon. It is reported that baryons are composed of three smaller substances called quarks. The protons and neutrons that make up the nucleus are also baryons. Xi (b) * particles belong to the so-called beautiful baryon, which contains a bottom quark, also known as a beautiful quark. Although the discovery of Xi (b) * may not necessarily be a surprise, this discovery should help scientists solve the larger problem of "how matter is formed". James Alexander, a physicist at Cornell University in the United States who conducted experiments on the Large Hadron Collider, said: "This is another brick on the wall."
Unlike protons and neutrons, the life span of baryon is extremely short. Xi (b) * decays into 21 other short-lived particles in less than a second. Baryon requires extremely high energy to create, so it can't be found anywhere on the earth except the center of the atomic accelerator, such as the Large Hadron Collider located at the CERN in Geneva.
Scientists of the Large Hadron Collider did not directly discover the new particle, but they saw evidence of its decay. The Compact Muon Solenoid (CMS) detector of the Large Hadron Collider captured the new particle. The process of decay in the messy after-wave after the collision of protons and protons. Vincenzo Chiochia, a physicist at CMS, said: "It ’s really hard to find this particle. Looking for this complex decay in such a chaotic situation makes us confident in our ability. In the future, we can also find other new particles. "
Scientists at CMS stated that the existence of this new particle has been confirmed, and the researchers are 99.99% confident that the result was not accidental. Patrick Lukens, a scientist at Fermilab who was not involved in the study, said: "This discovery further confirms that physicists' understanding of how quarks are combined is essentially correct."
This particle was once predicted by a very successful theoretical model in physics called quantum chromodynamics, which demonstrates how quarks combine and create heavier particles. However, Lukens said that finding Xi (b) * had no effect on finding the Higgs boson. The Higgs boson can explain why mass exists in the universe, and it is also a particle predicted by the quantum chromodynamic model.
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