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Chris T
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Homework Statement
A particle of unknown rest mass, M, traveling at an unknown speed, v, decays to an electron, a positron and a photon with the following four-momenta: pe x pe y pe z Ee/c pp x pp y pp z Ep/c pγ x pγ y pγ z Eγ/c
Write down an expression for M in terms of these four-momenta. These four momenta are measured in a detector (in units of GeV/c) to be, respectively,: 0 50 0 50 , 0 −50 0 50 , 0 0 100 100 where the mass of the electron is neglected.
Homework Equations
Calculate M and v.