MSSM with gauged baryon and lepton numbers

TL;DR

This paper proposes an extension of the MSSM where baryon and lepton numbers are gauged, explaining proton stability, predicting neutrino spectra, and enabling new collider and dark matter searches.

Contribution

It introduces a gauged baryon and lepton number extension of the MSSM with unique phenomenological implications and testable predictions.

Findings

Provides a natural explanation for proton stability.

Predicts a dark matter candidate with baryon number.

Allows for lepton number violating processes at the LHC.

Abstract

A simple extension of the minimal supersymmetric standard model in which baryon and lepton numbers are local gauge symmetries spontaneously broken at the supersymmetry scale is reported. This theory provides a natural explanation for proton stability. Despite violating R-parity, it contains a dark matter candidate carrying baryon number that can be searched for in direct detection experiments. The model accommodates a light active neutrino spectrum and predicts one heavy and two light sterile neutrinos. It also allows for lepton number violating processes testable at the Large Hadron Collider.