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Proton, anti Proton annihilation help!

  1. Apr 21, 2012 #1
    I have been told when a proton and anti proton annihilate only the one up and one anti up quark destroyed forming ∏+ and ∏- measons. I dont understand how both protons are not fully annihilated?

    anti proton has:
    anti up, anti up and anti down quarks
    proton has:
    up, up down quarks

    Any help would be appriciated. :)
     
  2. jcsd
  3. Apr 21, 2012 #2
    There are a number of channels in which this reaction can proceed.
     
  4. Apr 21, 2012 #3
    I found the following referenc where baryon-antibaryon annihilation dynamics is discussed. You may follow other references from there:

    http://arxiv.org/abs/hep-ex/0501020v1
     
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