Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-05-22
Physics
High Energy Physics
High Energy Physics - Phenomenology
26 pages, 6 figures, typeset with ReVTeX. Presented by A. Bottino at "Results and Perspectives in Particle Physics", Les Renco
Scientific paper
After a short introduction on particle candidates for dark matter within possible extensions of the standard model, we concentrate on Weakly Interacting Massive Particles, and on one of their most interesting physical realizations: the neutralino. We analyze how detectability of relic neutralinos by direct and indirect means is related to their local and cosmological densities; we use simple general arguments to discusss different scenarios where relic neutralinos make up the dominant bulk of dark matter or only a small fraction of it. Our general arguments are further corroborated by specific numerical results. We show to which extent the present experiments of direct searches for WIMPs, when interpreted in terms of relic neutralinos, probe interesting regions of the supersymmetric parameter space. Our analysis is performed in a number of different supersymmetric schemes.
Bottino Alberto
Donato Fiorenza
Fornengo Nicolao
Scopel Stefano
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