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hyperon

[hahy-puh-ron] /ˈhaɪ pəˌrɒn/
noun, Physics.
1.
any baryon with strangeness other than zero, especially one with a relatively long lifetime.
Origin
1950-1955
1950-55; hyper- + -on1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for hyperon
  • Then the large hyperon targeting magnet will be installed.
British Dictionary definitions for hyperon

hyperon

/ˈhaɪpəˌrɒn/
noun
1.
(physics) any baryon that is not a nucleon
Word Origin
C20: from hyper- + -on
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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hyperon in Science
hyperon
  (hī'pə-rŏn')   
Any of various baryons, other than the proton and neutron, that do not decay via the strong force. The lambda particle is an example of a hyperon. Hyperons are unstable or semistable, heavier than protons and neutrons, and have nonzero strangeness.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for hyperon

quasi-stable member of a class of subatomic particles known as baryons that are composed of three quarks. More massive than their more-familiar baryon cousins, the nucleons (protons and neutrons), hyperons are distinct from them in that they contain one or more strange quarks. Hyperons, in order of increasing mass, include the lambda-zero (Lambda0) particle, a triplet of sigma (Sigma) particles, a doublet of xi (Xi) particles, and the omega-minus (Omega) particle. Each of the seven particles, detected during the period 1947-64, also has a corresponding antiparticle. The discovery of the omega-minus hyperon was suggested by the Eightfold Way of classifying hadrons, the more-general group of subatomic particles to which hyperons are assigned. Hadrons are composed of quarks and interact with one another via the strong force.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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