$n-\overline{n}$ Oscillation in $S^1/Z_2\times Z_2'$ Orbifold $SU(5)$ GUT

Abstract

We explore the possibility of $B$ and $B-L$ violating processes, specifically proton decay and neutron-antineutron oscillation, using explicit realization of operators in the $SU(5)$ grand unified theory with an $S^1/Z_2 \times Z_2'$ orbifold space.