Exotic New Particles Seen in Hadron Collider, On The Hunt For Dark Matter, Unearth New Secrets of Physics
Physicists at the European Organization for Nuclear Research (CERN) announced on July 5 that they had observed three exotic new types of particles that had never been seen before—shining a light into a subatomic world we don't fully understand. The observation was made using the Large Hadron Collider (LHC), the world's biggest particle accelerator
Last week, scientists switched the accelerator on again, for the third time, launching beams of particles at higher energy levels than ever before. The collisions produced three never-before-seen particles: a new kind of pentaquark, a new kind of tetraquark and the first ever pair of tetraquarks.
Typically, quarks combine in groups of twos and threes,via gluons. Protons, for instance, are made of three quarks. However, in rare cases quarks can combine in groups of four or five—tetraquarks and pentaquarks respectively.
"These discoveries are quite significant since they confirm the existence of 'exotic' pentaquark and tetraquark states with different quark combinations, also including the strange quark this time," Nicola Neri, senior member of the LHCb experiment in which the particles were discovered, told Newsweek.
In 2 days, CERN will launch (https://www.space.com/cern-lau....nch-first-satellite- satellite on the European Rideshare Rocket, designed to measure radiation of the inner Van Allen belt, and its effects on electronics.
Source: Newsweek (https://www.newsweek.com/large....-hadron-collider-lhc Washington Post
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