Variations of the Neutralino Elastic Cross-Section with CP Violating Phases

Details Variations of the Neutralino Elastic Cross-Section with CP Violating Phases Variations of the Neutralino Elastic Cross-Section with CP Violating Phases

1999-08-09

arxiv.org/abs/hep-ph/9908311v1

Astropart.Phys.13:301-316,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, latex, 26 ps figures

Scientific paper

10.1016/S0927-6505(99)00125-5

We analyze the neutralino-nucleus elastic cross-section in the MSSM, including contributions from CP-violating phases, using the four-fermi neutralino-quark interaction. Over a wide range of the MSSM parameter space we show the variations in the cross-sections due to these phases. We further concentrate on the regions which are consistent with constraints from the electric dipole moment of the electron, neutron and mercury atom. In the regions we examine in detail, we find suppressions by up to a factor of two, while enhancements in the cross-sections are no greater than $\sim$ 10%.

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