Effect of relaxing grand-unification assumptions on neutralinos in the minimal supersymmetric model

Details Effect of relaxing grand-unification assumptions on neutralinos in the minimal supersymmetric model Effect of relaxing grand-unification assumptions on neutralinos in the minimal supersymmetric model

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvd..46.3309g&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 46, Issue 8, 15 October 1992, pp.3309-3317

Mathematics

Logic

37

Supersymmetric Partners Of Known Particles, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

We consider the phenomenological and cosmological properties of light neutralinos in the minimal supersymmetric model when grand-unification assumptions are relaxed. We show that substantial changes result in the mass and mixing properties of the neutralinos, in the interpretation of recent experimental restrictions on neutralino parameter space, and in the relic abundance of light-neutralino dark matter. Relaxation of the grand-unification assumptions is easily accomplished, even within the minimal supergravity model, and results in a larger neutralino parameter space and the viability of light-neutralino (<~10-20 GeV) dark matter.

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