Identifying Sneutrino Dark Matter: Interplay between the LHC and Direct Search

TL;DR

This paper explores how combining LHC dilepton resonance signals with direct dark matter detection experiments can identify right-handed sneutrino as a viable dark matter candidate in a TeV scale B-L extended MSSM.

Contribution

It demonstrates a novel method to identify sneutrino dark matter by correlating collider signals with direct detection experiments in a B-L gauge extension of MSSM.

Findings

Right-handed sneutrino can be a dark matter candidate.

Correlation between LHC dilepton signals and direct detection helps identification.

B-L gauge extension naturally supports sneutrino dark matter.

Abstract

Under R-parity, the lightest supersymmetric particle (LSP) is stable and may serve as a good dark matter candidate. The R-parity can be naturally introduced with a gauge origin at TeV scale. We go over why a TeV scale B-L gauge extension of the minimal supersymmetric standard model (MSSM) is one of the most natural, if not demanded, low energy supersymmetric models. In the presence of a TeV scale Abelian gauge symmetry, the (predominantly) right-handed sneutrino LSP can be a good dark matter candidate. Its identification at the LHC is challenging because it does not carry any standard model charge. We show how we can use the correlation between the LHC experiments (dilepton resonance signals) and the direct dark matter search experiments (such as CDMS and XENON) to identify the right-handed sneutrino LSP dark matter in the B-L extended MSSM.