Relic Abundances and Detection Rates of Neutralinos in String-Inpired Supergravity Models

Details Relic Abundances and Detection Rates of Neutralinos in String-Inpired Supergravity Models Relic Abundances and Detection Rates of Neutralinos in String-Inpired Supergravity Models

1996-10-14

arxiv.org/abs/hep-ph/9610355v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 7 pages including 6 figs, uses sprocl.sty. Based on a talk given by G.V. Kraniotis at the international Workshop on the

Scientific paper

We calculate ``relic abundances'' and ``detection rates'' of the neutralino (LSP) in string-inspired supergravity models with ``dilaton-moduli'' induced supersymmetry breaking. In particular we investigate ``universal'' scenarios for the soft-supersymmetry breaking terms from Calabi-Yau compactifications, as well as from the dilaton-dominated limit. ``Non-universal'' scenarios from orbifold string theory are also incorporated into the analysis. In all cases, in the cosmologically interesting region, we find $m_{LSP}\geq 50$ GeV and direct-detection rates in the range O($10^{-3}$ events/(Kg day)) - O($10^{-4}$ events/(Kg day)). ``Indirect-detection'' rates from LSPs captured in the Sun are also calculated.

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