PROTON DECAY IN 5D–SU(6) GUT WITH ORBIFOLD S1/Z2 BREAKING IN SCHERK-SCHWARZ MECHANISM
Proton decay within 5-dimensional SU(6) GUT with orbifold S1/Z2 breaking is investigated using Scherk-Schwarz mechanism. It is shown that in the model neither leptoquark like heavy gauge bosons nor violation of baryon number conservation are allowed due to the orbifold breaking parity splitting. These results prevent too short proton lifetime within the model.