more charmless

Science Dictionary
charm   (chärm)  Pronunciation Key 
  1. One of the flavors of quarks, contributing to the charm number—a quantum number—for hadrons.

  2. A charmed particle is a particle that contains at least one charmed quark or charmed antiquark. The charmed quark was hypothesized to account for the longevity of the J/psi particle and to explain differences in the behavior of leptons and hadrons. See more at flavor.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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