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 $2\gev\lsim \mcnone\lsim 12\gev$ mass range with correct relic density and large spin-independent direct-detection cross section, $\sigsi$, 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.

14 pages, 10 figures

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• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
• micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
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Cited by in corpus (3)

• A possible connection between neutrino mass generation and the lightness of a NMSSM pseudoscalar
• Light neutralino dark matter in light Higgs scenario related with the CoGeNT and DAMA/LIBRA results
• Cosmic ray constraints on singlino-like dark matter candidates