CoGeNT, DAMA, and Neutralino Dark Matter in the Next-To-Minimal Supersymmetric Standard Model

Abstract

We assess the extent to which the NMSSM can allow for light dark matter in the $2\text{gev}\text{lsim}\text{mcnone}\text{lsim}12\text{gev}$ mass range with correct relic density and large spin-independent direct-detection cross section, $\text{sigsi}$, in the range suggested by \cogent\ and DAMA. For standard assumptions regarding nucleon $s$-quark content and cosmological relic density, $\rho$, we find that the NMSSM falls short by a factor of about 10 to 15 (3 to 5) without (with) significant violation of the current $(g-2{)}_{\mu }$ constraints.

Comments: 14 pages, 10 figures