Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-03-16
J.Phys.A40:6889-6894,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 6 figures, talk given at IRGAC2006, Barcelona, July 11-15, 2006, to appear in J. Phys. A
Scientific paper
10.1088/1751-8113/40/25/S35
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.
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