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Flavour and Mass eigenstates

  1. May 13, 2011 #1
    Could somebody please explain to me the difference between flavour and mass eigenstates.

    The question is "Neutrinos can be produced from charged pion decay, What
    force is involved, and at the time of creation is the neutrino in a flavour or
    mass eigenstate, and why?"

    And why would it be in one of these states at creation?

    Cheers Guys!
  2. jcsd
  3. May 13, 2011 #2


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    Hello David! :wink:
    First, what force is involved? :smile:
  4. May 14, 2011 #3
    Most definitly weak!
  5. May 17, 2011 #4


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    In the decay pion-->muon+neutrino the neutrino must be in the flavor eigenstate of a muon neutrino. It propagates as a linear combination of two (or three) mass eigenstates.
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