b-s particle









b-s particle


noun Physics.

  1. a neutral meson with a mass 10,507 times that of the electron and a mean lifetime of approximately 1.6 X 10-12 seconds.

  1. An electrically neutral meson having a mass 10,507 times that of the electron and a mean lifetime of approximately 1.6 X 10-12 seconds. See Table at subatomic particle.
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