40. We assume the neutrino has negligible mass. The photons, of course, are also taken to have zero mass. QmmmcmmmmmcQmmmccQmmmcmcpeeeepp1222223223233423422 10078252 0141022 0 000548693150422 0141021007825301602993155492 30160294 0026032=−−=−−−−=−−==+−−−
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This note was uploaded on 05/19/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.