Two-body decays of the nucleon

Abstract

We compute branching ratios for proton and neutron decay for SU(5), SO(10), and $\mathrm{SU}{\mathrm{}\left(2\right)\mathrm{}}_L\times \mathrm{SU}{\mathrm{}\left(2\right)\mathrm{}}_R\times \mathrm{U}\mathrm{}\left(1\right)\mathrm{}$ unification schemes. Quark wave functions from the MIT bag model are used to describe hadron structure. The results differ from those of nonrelativistic SU(6). The proton and neutron total lifetimes are also estimated.