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Next-generation experiments, such as the Deep Underground Neutrino Experiment and the European Spallation Source, are set to improve sensitivity to neutron-antineutron oscillation, a direct probe of ∆B = 2 baryon number violation, with particularly significant gains expected at the latter. The disco ...

The Georgi-Glashow model is the simplest possible attempt at grand unification. However, due to its particle content, the model preserves a global symmetry, where B and L are baryon and lepton numbers, respectively. It thus leaves neutrinos massless just as the Standard Model does. The extensions of ...

We assess proton decay signatures in the simplest viable $SU(5)$ model with regard to constraints on parameters governing the Standard Model fermion mass spectrum. Experimental signals for all eight two-body proton decay processes result from exchange of two gauge bosons, a single scalar leptoquark, ...