Neutralino Dark Matter in the USSM

Details Neutralino Dark Matter in the USSM Neutralino Dark Matter in the USSM

2008-11-13

arxiv.org/abs/0811.2204v2

JHEP 0901:066,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

44 pages, 18 figures

Scientific paper

10.1088/1126-6708/2009/01/066

This paper provides a comprehensive discussion of neutralino dark matter within classes of extended supersymmetric models referred to as the USSM containing one additional SM singlet Higgs plus an extra $Z'$, together with their superpartners the singlino and bino'. These extra states of the USSM can significantly modify the nature and properties of neutralino dark matter relative to that of the minimal (or even next-to-minimal) supersymmetric standard models. We derive the Feynman rules for the USSM and calculate the dark matter relic abundance and direct detection rates for elastic scattering in the USSM for interesting regions of parameter space where the largest differences are expected.

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