Baryon poles in proton decay amplitudes

Abstract

The decay rate of the p→ π 0e + mode is calculated in SU(5) grand unified theory using a pole model with proton and 1 2 − baryon poles. Baryon-to-vacuum amplitudes are calculated in the framework of the MIT bag model. It is found that the partial decay rate [∼(5×10 31 yr) −)] is close to the partial decay rates calculated by different methods.