Relic density and elastic scattering cross sections of the neutralino in the MSSM with CP-violating phases

Details Relic density and elastic scattering cross sections of the neutralino in the MSSM with CP-violating phases Relic density and elastic scattering cross sections of the neutralino in the MSSM with CP-violating phases

2004-04-11

arxiv.org/abs/hep-ph/0404100v3

Phys.Rev. D70 (2004) 055011; Erratum-ibid. D70 (2004) 079901

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 25 pages, 8 eps figures

Scientific paper

10.1103/PhysRevD.70.055011

We study the neutralino relic density and the neutralino-proton elastic scattering cross sections in the minimal supersymmetric standard model (MSSM) with CP-violating phases. We include all the final states to the neutralino pair annihilation cross section at the tree level, taking into account the mixing between the CP-even and CP-odd neutral Higgs fields. We show that variations of the relic density and the elastic scattering cross sections with the CP-violating phases are significant. In particular, interferences between the major contributions in the neutralino annihilation cross section can cause considerable enhancement of the relic density.

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