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I Feynman Diagram for Double Charm Baryon

  1. Jul 7, 2017 #1

    This Feynman diagram accompanied the announcement on the public LHCb site. How would you describe the origins of the up and down quark anti-quark pairs that that contribute to the decay of the ##\Xi_{cc}^{++}##?
  2. jcsd
  3. Jul 7, 2017 #2


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    Staff: Mentor

    Gluon-initiated. The gluons can come from anywhere, they are not drawn to keep the diagram simpler.
  4. Jul 7, 2017 #3
    Thanks for the quick reply. After thinking about it for a few minutes, I figured it had to be gluons scattering from somewhere.
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