Dark Matter in B-L Extended MSSM Models

Details Dark Matter in B-L Extended MSSM Models Dark Matter in B-L Extended MSSM Models

2008-10-25

arxiv.org/abs/0810.4573v3

Phys.Rev.D79:083510,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 9 figures. Published version

Scientific paper

10.1103/PhysRevD.79.083510

We analyze the dark matter problem in the context of supersymmetric U(1)_{B-L} model. In this model, the lightest neutalino can be the B-L gaugino widetilde {Z}_{B-L} or the extra Higgsinos widetilde{chi}_{1,2} dominated. We compute the thermal relic abundance of these particles and show that, unlike the LSP in MSSM, they can account for the observed relic abundance with no conflict with other phenomenological constraints. The prospects for their direct detection, if they are part of our galactic halo, are also discussed.

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