A framework for baryonic R-parity violation in grand unified theories

TL;DR

This paper explores a supersymmetric grand unified theory framework that allows baryonic R-parity violation without lepton number violation, improving naturalness and maintaining gauge unification without fine-tuning.

Contribution

It demonstrates a novel way to achieve baryonic R-parity violation in simple SO(10) models without fine-tuning or large representations.

Findings

Baryonic R-parity violation can be realized without lepton number violation.

Naturalness of supersymmetry is improved in the proposed framework.

Gauge coupling unification remains successful in the model.

Abstract

We investigate the possibility of obtaining sizeable R-parity breaking interactions violating baryon number but not lepton number within supersymmetric grand unified theories. Such a possibility allows to ameliorate the naturalness status of supersymmetry while maintaining successful gauge coupling unification, one of its main phenomenological motivations. We show that this can be achieved without fine-tuning or the need of large representations in simple SO(10) models.