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Z Boson Decay

  1. Feb 8, 2016 #1
    Considering a Z boson decay into a fermion-antifermion pair. How can i say if the process respect parity and charge conjugation?Thanks
  2. jcsd
  3. Feb 8, 2016 #2


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    As usual, check the transformation properties of the initial and the final states.
  4. Feb 15, 2016 #3
    Could yuo be more specific? Because i compute the polarized amplitude and there is a term proportional to cosine (that is clearly not parity invariant), but i don't know how to show that it's not C invariant.
  5. Feb 15, 2016 #4


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    What changes if you exchange every particle for its antiparticle in a fermion/antifermion pair, what changes for the Z?

    Cosine of what, by the way?
  6. Feb 16, 2016 #5
    Cosine of the angle betwen z axis and the 3momentum of fermion in the rest frame of Z.
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