Dark matter in the Randall-Sundrum model with non-universal coupling

Understand

We consider simplified dark matter models (DM) interacting gravitationally with the standard model (SM) particles in a Randall-Sundrum (RS) framework.

• In this framework, the DM particles interact through the exchange of spin-2 Kaluza-Klein (KK) gravitons in the $s$-channel with the SM particles.
• The parameter space of the RS model with universal couplings to SM particles is known to be strongly constrained from the LHC data.
• We are thus led to consider models with non-universal couplings.