Baryons Traditional Cache
Hidden : 7/3/2011
Difficulty:
1.5 out of 5
Terrain:
2 out of 5

Size: Size: small (small)

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Geocache Description:

This cache is one of six in the Particle Series. Each cache is a stand-alone cache. These caches are inspired by on-going research at CERN labs in Switzerland.

CERN, the European Organization for Nuclear Research, is one of the world’s largest and most respected centres for scientific research. Its business is fundamental physics, finding out what the Universe is made of and how it works. At CERN, the world’s largest and most complex scientific instruments are used to study the basic constituents of matter — the fundamental particles. By studying what happens when these particles collide, physicists learn about the laws of Nature.



A combination of three u, d or s-quarks with a total spin of 3/2 form the so-called baryon decuplet.

A baryon is a composite particle made up of three quarks (as distinct from mesons which comprise one quark and one antiquark). Baryons and mesons belong to the hadron family, which are the quark-based particles. The name "baryon" comes from the Greek word for "heavy" because at the time of their naming, most known particles had lower masses than the baryons'.
  • Nucleons are the fermionic constituents of normal atomic nuclei:
    • Protons, composed of two up and one down quark (uud)
    • Neutrons, composed of two down and one up quark (ddu)
  • Hyperons, such as the L, S, X, and W particles, which contain one or more strange quarks, are short-lived and heavier than nucleons. Although not normally present in atomic nuclei, they can appear in short-lived hypernuclei.
  • A number of charmed and bottom baryons have also been observed.
Some hints at the existence of exotic baryons have been found recently; however, negative results have also been reported. Their existence is uncertain.

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