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Light neutralinos as dark matter in the unconstrained minimal supersymmetric standard model

By Warsaw Univ. (Poland). Inst. Fizyki Teoretycznej), Muenchen (Germany)) S. (Max-Planck-Institut fuer Physik Cooper, A. Gabutti, Muenchen (Germany) Max-Planck-Institut fuer Physik, Turin Univ. (Italy). Ist. di Fisica Teorica and Turin (Italy) M. (Istituto Nazionale di Fisica Nucleare Olechowski

Abstract

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 "2"7Al and on other materials for dark matter experiments is discussed. (orig.)30 refs.SIGLEAvailable from TIB Hannover: RR 2916(96-02) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Topics: 20O - Astrophysics, DARK MATTER, SPARTICLES, SUPERSYMMETRY, STANDARD MODEL, GRAND UNIFIED THEORY, ELEMENTARY PARTICLE MASS
Year: 1996
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Provided by: OpenGrey Repository
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