Annihilation of NMSSM neutralinos in the Sun and neutrino telescope limits

Details Annihilation of NMSSM neutralinos in the Sun and neutrino telescope limits Annihilation of NMSSM neutralinos in the Sun and neutrino telescope limits

2010-06-04

arxiv.org/abs/1006.0872v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 16 figures, accepted for publication in JCAP, references added

Scientific paper

We investigate neutralino dark matter in the framework of NMSSM performing a scan over its parameter space and calculating neutralino capture and annihilation rates in the Sun. We discuss the prospects of searches for neutralino dark matter in neutrino experiments depending on neutralino content and its main annihilation channel. We recalculate the upper limits on neutralino-proton elastic cross sections directly from neutrino telescopes upper bounds on annihilation rates in the Sun. This procedure has advantages as compared with corresponding recalcalations from the limits on muon flux, namely, it is independent on details of the experiment and the recalculation coefficients are universal for any kind of WIMP dark matter models. We derive 90% c.l. upper limits on neutralino-proton cross sections from the results of the Baksan Underground Scintillator Telescope.

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