Question
Asked Nov 14, 2019
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A muon (mμc2 = 105.7 MeV) at rest decays into a electron (mec2 = 0.511 MeV) and a neutrino (whose mass is very nearly zero).

What is the Kelectron and Kneutrino in MeV?

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Expert Answer

Step 1

Given,

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т,с %3D105.7 МeV тс =0.511 MeV

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Step 2

Energy of muon, electron and neutrino will be conserved before and after collision,

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mc E+E Encrgy of neutrino, Pc

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Step 3

If we apply conservation of linear momentum though initial momentum...

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Вфт 0 P+P PP -(m.J' z2(m,)*c* Momentum of muon is,P C

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