heavy particle

Definitions of heavy particle
  1. noun
    any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1
    synonyms: baryon
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    hyperon
    any baryon that is not a nucleon; unstable particle with mass greater than a neutron
    nucleon
    a constituent (proton or neutron) of an atomic nucleus
    antineutron
    the antiparticle of a neutron
    antiproton
    an unstable negatively charged proton; the antiparticle of a proton
    lambda hyperon, lambda particle
    an electrically neutral baryon with isotopic spin 1
    neutron
    an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus
    proton
    a stable particle with positive charge equal to the negative charge of an electron
    type of:
    fermion
    any particle that obeys Fermi-Dirac statistics and is subject to the Pauli exclusion principle
    hadron
    any elementary particle that interacts strongly with other particles
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