Neutralino Dark Matter in the NMSSM

Abstract

We analyze the direct detection of neutralino dark matter in the framework of the Next-to-Minimal Supersymmetric Standard Model. Taking into account all the available constraints from LEPII and Tevatron, including bounds from the muon anomalous magnetic moment and flavor constraint as $b\to s\gamma$, we compute the neutralino-nucleon cross section and compare the results with the sensitivity of dark matter detectors. We also study the relic abundance of neutralinos, comparing it with WMAP observations. We show that a light singlet-like Higgs can escape accelerator constraints allowing for scenarios with large cross sections, and a very interesting phenomenology.

arXiv comment6 pages, 6 figures, talk given at IRGAC2006, Barcelona, July 11-15, 2006, to appear in J. Phys. A

References in corpus (8)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Measurement of the Negative Muon Anomalous Magnetic Moment to 0.7 ppm
• NMHDECAY 2.0: An updated program for Sparticle masses, Higgs masses, couplings and decay widths in the NMSSM
• Dark Matter Detection in the Light of Recent Experimental Results
• Relic density of dark matter in the NMSSM
• On the Cosmological Domain Wall Problem for the Minimally Extended Supersymmetric Standard Model
• Destabilising Divergences in the NMSSM
• Theoretical predictions for the direct detection of neutralino dark matter in the NMSSM

Cited by in corpus (1)

• Light Higgs Bosons in NMSSM at the LHC