- #1
isospin
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The positive W boson decays to a anti-muon and a muon neutrino, it should be a weak interaction.
And the positive Pion can decays to a anti-muon and a muon neutrino, too.
But the lifetimes of them are totally different, so why?
I know the positive Pion is composed of two quarks, but could you please give me a quantitative analysis?
And the positive Pion can decays to a anti-muon and a muon neutrino, too.
But the lifetimes of them are totally different, so why?
I know the positive Pion is composed of two quarks, but could you please give me a quantitative analysis?
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