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Anti-neutron + Electron reaction?

  1. Aug 26, 2007 #1

    Gib Z

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    Hey guys, I need help on this question that was in the Australian Physics Olympiad Entrance exam last week:

    What would happen if an anti-neutron and an electron collided, and why?


    I'm thinking some sort of beta radiation, but that's just a hunch and I don't know why.

    Thanks!
     
  2. jcsd
  3. Aug 26, 2007 #2

    malawi_glenn

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    Have you tried to draw a Feynman diagram of this one?
     
  4. Aug 26, 2007 #3

    Gib Z

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    Ahh good idea but I can't get anywhere from it :(
     
  5. Aug 26, 2007 #4

    malawi_glenn

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    Just draw one for a allowed reaction, i.e :

    e + P -> N + e-neutrino

    Then crossing (change side and do antiparticle)

    e + anti_N -> anti_P + e-neutrino

    That should be right
     
  6. Aug 26, 2007 #5

    Gib Z

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    Ahh :) In other terms, an electron and a proton form a Neutron and an electron neutrino, So an electron and an anti Neutrino make an anti proton and an electron neutrino? The electron neutrino tells me beta radiation, but does the anti proton affect that in any way?
     
  7. Aug 26, 2007 #6

    malawi_glenn

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  8. Aug 26, 2007 #7

    Gib Z

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    Ahh I see. Thank you so much :)
     
  9. Aug 26, 2007 #8

    malawi_glenn

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    No problem, now good luck! Cheers
     
  10. Sep 12, 2007 #9

    Meir Achuz

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    The most important reaction would be scattering due to the EM interaction between the electron and the antli-neutron magnetic moment.
     
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