Undesignated
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'A muon is an unstable particle.
State the names of the particles that are produced when a muon decays.'
The ms says that it decays into an electron, electron antineutrino, and a muon neutrino. But I'm not too sure why, could someone explain this to me?
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golgiapparatus31
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http://www.princeton.edu/~romalis/PH...n_lifetime.pdf
https://en.wikipedia.org/wiki/Muon

Hello, the decay is like that, due to conservation of ..., ... and ...
Spoiler:
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lepton number,

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charge

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and mass-energy




(Not allowed to post answer, so try to think about it, then look at spoiler.
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Undesignated
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(Original post by golgiapparatus31)
http://www.princeton.edu/~romalis/PH...n_lifetime.pdf
https://en.wikipedia.org/wiki/Muon

Hello, the decay is like that, due to conservation of ..., ... and ...
Spoiler:
Show
Spoiler:
Show
lepton number,

Spoiler:
Show
charge

Spoiler:
Show
and mass-energy




(Not allowed to post answer, so try to think about it, then look at spoiler.
Hi, thanks for the reply. I get that lepton number, charge and mass/energy have to be conserved, but couldn't the muon simply decay into the electron by itself then? Since lepton number and charge would be conserved and the remaining mass-energy could be converted into kinetic energy. Are there perhaps different types of lepton numbers that need to be conserved?
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golgiapparatus31
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(Original post by Undesignated)
Hi, thanks for the reply. I get that lepton number, charge and mass/energy have to be conserved, but couldn't the muon simply decay into the electron by itself then? Since lepton number and charge would be conserved and the remaining mass-energy could be converted into kinetic energy. Are there perhaps different types of lepton numbers that need to be conserved?
Yeah, there are different types of lepton numbers that need to be conserved
https://en.wikipedia.org/wiki/Lepton_number (see Lepton flavour conservation)
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Sinnoh
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(Original post by Undesignated)
Hi, thanks for the reply. I get that lepton number, charge and mass/energy have to be conserved, but couldn't the muon simply decay into the electron by itself then? Since lepton number and charge would be conserved and the remaining mass-energy could be converted into kinetic energy. Are there perhaps different types of lepton numbers that need to be conserved?
Wiki page says μ− → e− (plus gamma rays) isn't forbidden, but incredibly unlikely ( like 1 in 10^50)
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Undesignated
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(Original post by golgiapparatus31)
Yeah, there are different types of lepton numbers that need to be conserved
https://en.wikipedia.org/wiki/Lepton_number (see Lepton flavour conservation)
Ah alright thanks.
Last edited by Undesignated; 1 month ago
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Undesignated
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(Original post by Sinnoh)
Wiki page says μ− → e− (plus gamma rays) isn't forbidden, but incredibly unlikely ( like 1 in 10^50)
Oh I must've missed that. Thanks for the clarification.
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