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HomeUncategorized"We are creating the 'particle zoo 2.0'": Scientists discover three new exotic...

“We are creating the 'particle zoo 2.0'”: Scientists discover three new exotic fusions of quarks


The new type of ‘pentaquark’ and the first pair of ‘tetraquarks’ in history are the result of several experiments carried out within the framework of the LHCb project of the Large Hadron Collider.

The LHCb equipment, one of the particle detectors installed in the Large Hadron Collider , has announced the discovery of three new exotic particles formed by an unusual number of quarks, which six decades ago had only been theorized and which were observed for the first time about 20 years ago.

Quarks, which come in six different types, often combine in groups of two or three to form hadrons, like the protons and neutrons that make up atomic nuclei. However, less frequently they can be combined into particles of four and five.

The so-called ‘tetraquarks’ and ‘pentaquarks’ are precisely these fusions that are known as exotic, explained in a statement Chris Parkes, professor of Experimental Particle Physics at the University of Manchester who directs the experiment.

The results of the project, which have been presented at a seminar of the European Organization for to Nuclear Research, add three new exotic members to the growing list of new particles found by the Large Hadron Collider experiments: a new type of ‘pentaquark’ and the first history pair of ‘tetraquarks’.

Discoveries similar to those of 70 years ago

“The more analyzes we carry out, the more types of exotic hadrons we find,” said Niels Tuning, coordinator of physics at the LHCb, who recalled similar discoveries that occurred in the 1950s, when the hadron ‘particle zoo’ term. Now, “we are creating ‘particle zoo 2.0’,” he added.

“Finding exotic particles and measuring their properties will help theorists develop a model of how these are formed particles, the exact nature of which is largely unknown,” says the scientist. “It will also help to better understand the theory of conventional particles , such as the proton and the neutron,” he added.

Scientists hope to find more exotic particles in the future and to understand the generations, or families, in which they are formed. The group also announced that it is beginning to collect data with its new detector for the Large Hadrone Collider, LHC Run 3.


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