- #1
Simfish
Gold Member
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So the pion(+)n is made up of an up quark and a down antiquark. And somehow, it emits a W+ boson, which then turns into a muon and a muon-neutrino.
From the Wiki article, "W bosons can decay to a lepton and neutrino or to an up-type quark and a down-type quark."
Does this mean that the reaction can go in both directions? Meaning that a pion(+) could turn into a W+ boson, which then turns back into a pion(+)?
And how do the up quark and down antiquark interact to produce that W+ boson?
From the Wiki article, "W bosons can decay to a lepton and neutrino or to an up-type quark and a down-type quark."
Does this mean that the reaction can go in both directions? Meaning that a pion(+) could turn into a W+ boson, which then turns back into a pion(+)?
And how do the up quark and down antiquark interact to produce that W+ boson?