antiparticle antiparticle


  • (n) a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy


  1. Once they got their huge, high-energy accelerators working in the late 1950s, they matched 16 of these bits of matter with their antiparticle mates.
  2. Every subatomic particle has a corresponding antiparticle, identical in mass but differing in one crucial characteristic, like electric charge.
  3. But their eta-meson project does move a tiny step closer to the possibility of clarifying the differences between a particle and its antiparticle.


  • Ghost particles: New limits on extremely rare decay

    Neutrinos are the most elusive particles having extremely weak interactions with all other particles. They have rather unusual properties and are even expected to be identical with their own antiparticles. So far this property is, however, not experimentally verified even though many studies of neutrinos over the last 60 years have already boosted our understanding of elementary particle physics ...
    on July 17, 2013     Source: Science Daily

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