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    The production of a muon/antimuon pair from an electron and positron
    or...
    The production of a neutrino/antineutrino pair from an electron and a positron?

    The only weak interactions I know of are beta-minus decay, beta-plus decay and electron capture. All the sources I've found say they both involve weak interactions so I honestly don't know answer they're looking for...
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    A good rule of thumb is that if there are neutrinos involved, then it is a weak interaction.
    This is because neutrinos only partake in the weak and gravitational interactions (and we generally ignore the latter). They have neither electric nor colour charge.

    Although the muon/antimuon pair production could (depending on the energy involved) be a weak interaction, it can also be an electromagnetic interaction.


    (Original post by Geek1337)
    The production of a muon/antimuon pair from an electron and positron
    or...
    The production of a neutrino/antineutrino pair from an electron and a positron?

    The only weak interactions I know of are beta-minus decay, beta-plus decay and electron capture. All the sources I've found say they both involve weak interactions so I honestly don't know answer they're looking for...
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    (Original post by Minnesota Fats)
    A good rule of thumb is that if there are neutrinos involved, then it is a weak interaction.
    This is because neutrinos only partake in the weak and gravitational interactions (and we generally ignore the latter). They have neither electric nor colour charge.

    Although the muon/antimuon pair production could (depending on the energy involved) be a weak interaction, it can also be an electromagnetic interaction.
    Agreed.
 
 
 
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