A light singlet at the LHC and DM

TL;DR

This paper explores an R-symmetric supersymmetric model featuring a light singlet and Dirac neutralino, evaluating its potential as a viable dark matter candidate within collider and cosmological contexts.

Contribution

It introduces a novel R-symmetric supersymmetric framework with a light singlet and analyzes the dark matter viability of the associated light Dirac neutralino.

Findings

Light scalar implies a light Dirac neutralino.

The neutralino can serve as a viable dark matter candidate.

Implications for collider searches and cosmology are discussed.

Abstract

An interesting scenario of an R-symmetric supersymmetric model with a light singlet is discussed. Since a light scalar in this model necessarily implies a light Dirac neutralino, its viability as a dark matter candidate is addressed.