Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-10-14
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 8 Postscript figures, uses worldsci.sty Talk at the Workshop on Double Beta Decay and Related Topics, Trento, Italy,
Scientific paper
We consider the neutralino as a dominant Dark Matter particle in the galactic halo and investigate some general issues of direct Dark Matter searches via elastic neutralino-nucleus scattering. On the basis of conventional assumptions about the nuclear and nucleon structure we analyse constraints on SUSY model parameter space accessible by the direct Dark Matter searches. This analysis shows that Dark Matter detectors fall into the THREE different categories with respect to their sensitivity to different groups of the SUSY model parameters. We calculate the event rate for various experimentally interesting isotopes within the Minimal Supersymmetric Standard Model (MSSM) taking into account the known accelerator and cosmological constraints on the MSSM parameter space. We investigate the role of nuclear spin in elastic neutralino - nucleus scattering. It is found that the contribution of the spin-dependent interaction to this process is subdominant for nuclei with atomic weights A > 50.
Bednyakov Vadim A.
Klapdor-Kleingrothaus Hans Volker
Kovalenko Sergey G.
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