“Beautiful” New Particle Found at LHC

An atom-smashing experiment at the Large Hadron Collider (LHC) has detected a new subatomic particle—and it’s a beauty.

Known as Xi(b)* (pronounced “csai bee-star”), the new particle is a baryon, a type of matter made up of three even smaller pieces called quarks. Protons and neutrons, which make up the nuclei of atoms, are also baryons.

The Xi(b)* particle belongs to the so-called beauty baryons, particles that all contain a bottom quark, also known as a beauty quark.

The newfound particle had long been predicted by theory but had never been observed. Although finding Xi(b)* wasn’t exactly a surprise, the discovery should help scientists solve the larger puzzle of how matter is formed.

“It’s another brick in the wall,” said James Alexander, a physicist at Cornell University who conducts experiments with the LHC.

source : http://news.nationalgeographic.co.in/news/2012/05/120501-new-particle-beauty-large-hadron-collider-cern-science/





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