Light Neutralinos as Dark Matter in the Unconstrained Minimal Supersymmetric Standard Model

Details Light Neutralinos as Dark Matter in the Unconstrained Minimal Supersymmetric Standard Model Light Neutralinos as Dark Matter in the Unconstrained Minimal Supersymmetric Standard Model

1996-02-29

arxiv.org/abs/hep-ph/9602432v1

Astropart.Phys.6:1-24,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

Submitted to Astroparticle Physics, 19 Feb. 96, Latex 23 pages with 24 figures in a gzip compressed file FIGURE.PS.GZ availabl

Scientific paper

10.1016/S0927-6505(96)00031-X

The allowed parameter space for the lightest neutralino as the dark matter is explored using the Minimal Supersymmetric Standard Model as the low-energy effective theory without further theoretical constraints such as GUT. Selecting values of the parameters which are in agreement with present experimental limits and applying the additional requirement that the lightest neutralino be in a cosmologically interesting range, we give limits on the neutralino mass and composition. A similar analysis is also performed implementing the grand unification constraints. The elastic scattering cross section of the selected neutralinos on $^{27}$Al and on other materials for dark matter experiments is discussed.

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