NUCLEAR EFFECTS IN PROTON DECAY

摘要

An experimental observation of proton decay would be a spectacular proof of Grand Unification. Currently, the best constraint on the proton lifetime for the p → e~+π~0 decay channel, coming from the Su-perKamiokande experiment, reaches 8 × 10~(33) years. To improve the measurement, much bigger detectors should be constructed. Moreover, a better description of the bound-nucleon states and of the propagation of the proton-decay products through nuclear matter have to be developed. In this article special attention is paid to the argon nucleus because a liquid argon detector is a promising candidate for the future large apparatus.