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If we take case a) it proves the C and P are independly violated (neutrinos are left handed)

The component of spin along the direction of motion is:

-1 for the photon (bosons can have spin + or - 1)

-1/2 for the neutrino (fermions can have spin + or - 1/2)

So the total spin along the direction of motion is -3/2 which by the conservation of AM equals the spin of initial electron (the 'reactant' if you will). But this electron can only have a spin of + 1/2 or - 1/2, not -3/2 (or +3/2)!!

Can someone explain what I am not managing to understand. Thanks:)

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# Helicity - Experiment proving CP violation

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