Minimal gauge origin of baryon triality and flavorful signatures at the LHC

TL;DR

This paper proposes a minimal supersymmetric model where baryon triality (B3) emerges from a TeV-scale U(1) gauge symmetry, leading to distinctive flavor signatures at the LHC, including sneutrino and Z' resonances.

Contribution

It introduces a minimal supersymmetric model with gauged baryon triality as a residual discrete symmetry, incorporating flavor-dependent charges for unique LHC predictions.

Findings

Identification of flavor-dependent U(1) charges necessary for B3

Prediction of distinguishable LHC signatures such as sneutrino and Z' resonances

Introduction of baryon tetrality for four-generation scenarios

Abstract

Baryon triality (B3) is a Z3 discrete symmetry that can protect the proton from decay. Although its realization does not require supersymmetry, it is particularly appealing in the supersymmetry as an alternative to the popular R-parity. We discuss the issues in gauging B3, and present the minimal supersymmetric model with B3 as the remnant discrete symmetry of a TeV scale U(1) gauge symmetry. A flavor-dependent U(1) charge is necessary to achieve this, and it results in very distinguishable and flavorful predictions for the LHC experiments. We find a complementarity between a 2-lepton sneutrino resonance and a 4-lepton Z' resonance in the supersymmetry search. In addition, we introduce baryon tetrality (B4), which would play an equivalent role if there are four fermion generations.