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All baryons eventually decay into protons, is this the same with anti-bayrons?

  1. Jan 10, 2013 #1
    (high school level physics btw)

    apparently all baryons eventually decay into protons, so I was just curious to know if this was also true of anti-baryons?
     
  2. jcsd
  3. Jan 10, 2013 #2

    jtbell

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    Staff: Mentor

    The lightest anti-baryon is the antiproton, so any anti-baryon will eventually decay to an antiproton.

    Antiprotons are stable against decay (so far as we know), just like protons. However, sooner or later (probably sooner) an antiproton will encounter a proton and the two will annihilate:

    http://en.wikipedia.org/wiki/Annihilation#Proton-antiproton_annihilation
     
  4. Jan 10, 2013 #3
    thanks
     
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