antiproton :

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  • n  an unstable negatively charged proton; the antiparticle of a proton

  • One of physics' most exciting recent discoveries is the antiproton.
  • The antiproton, having lost its negative charge and received nothing in return, also became a chargeless particle, but it did not become a normal neutron.
  • The anti-lambda (3) turns into an antiproton and a positive pi meson.
News & Articles

  • Dr. Gordon Feldman, Johns Hopkins physicist
    Dr. Gordon Feldman, a Johns Hopkins physicist who contributed to discovery of the antiproton, died in his sleep Wednesday at Symphony Manor Assisted Living from complications of Alzheimer's.        
    Feb. 17, 2014 - Baltimore Sun

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