Sneutrino cold dark matter in extended MSSM models

Details Sneutrino cold dark matter in extended MSSM models Sneutrino cold dark matter in extended MSSM models

2008-05-14

arxiv.org/abs/0805.1991v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures, Prepared for Moriond EW session 2008, La Thuile, Italy, 1-8 March 2008

Scientific paper

A thorough analysis of sneutrinos as dark matter candidates is performed, in different classes of supersymmetric models, as is typically done for the neutralino dark matter. First in the Minimal Supersymmetric Standard Model, sneutrinos are marginally compatible with existing experimental bounds, including direct detection, provided they compose a subdominant component of dark matter. Then supersymmetric models with the inclusion of right-handed fields and lepton number violating terms are presented. These models are perfectly viable: they predict sneutrinos which are compatible with the current direct detection sensitivities.

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