Dark Left-Right Gauge Model: SU(2)_R Phenomenology

TL;DR

This paper explores the phenomenology of a dark left-right gauge model with an $SU(2)_R$ symmetry, proposing the lightest $n$ as a dark matter candidate and discussing unique collider signatures like $Z' o 8$ charged leptons.

Contribution

It introduces a non-supersymmetric dark left-right model with a novel dark matter candidate and analyzes its TeV-scale phenomenology, including distinctive collider signals.

Findings

The lightest $n$ can serve as a viable dark matter particle.

The model predicts observable $Z'$ decays into 8 charged leptons at TeV energies.

The $SU(2)_R$ gauge symmetry can manifest at accessible collider energies.

Abstract

In the recently proposed dark left-right gauge model of particle interactions, the left-handed fermion doublet $(\nu,e)_L$ is connected to its right-handed counterpart $(n,e)_R$ through a scalar bidoublet, but $\nu_L$ couples to $n_R$ only through $\phi_1^0$ which has no vacuum expectation value. The usual R parity, i.e. $R = (-)^{3B+L+2j}$, can be defined for this nonsupersymmetric model so that both $n$ and $\Phi_1$ are odd together with $W_R^\pm$. The lightest $n$ is thus a viable dark-matter candidate (scotino). Here we explore the phenomenology associated with the $SU(2)_R$ gauge group of this model, which allows it to appear at the TeV energy scale. The exciting possibility of $Z' \to 8$ charged leptons is discussed.