keV Warm Dark Matter via the Supersymmetric Higgs Portal

McDonald, John and Sahu, Narendra (2009) keV Warm Dark Matter via the Supersymmetric Higgs Portal. Physical Review D – Particles and Fields, 79 (10). ISSN 1550-2368

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Warm dark matter (WDM) may resolve the possible conflict between observed galaxy halos and the halos produced in cold dark matter (CDM) simulations. Here we present an extension of MSSM to include WDM by adding a gauge singlet fermion, \bar{\chi}, with a portal-like coupling to the MSSM Higgs doublets. This model has the property that the dark matter is {\it necessarily warm}. In the case where M_{\bar{\chi}} is mainly due to electroweak symmetry breaking, the \bar{\chi} mass is completely determined by its relic density and the reheating temperature, T_R. For 10^2 GeV

Item Type:
Journal Article
Journal or Publication Title:
Physical Review D – Particles and Fields
Additional Information:
6 pages LaTeX, Significantly expanded discussion. To be published in Physical Review D
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16 Aug 2012 10:27
Last Modified:
17 Sep 2023 01:09