Relic density in nonuniversal gaugino mass models with SO(10) GUT symmetry

Details Relic density in nonuniversal gaugino mass models with SO(10) GUT symmetry Relic density in nonuniversal gaugino mass models with SO(10) GUT symmetry

2009-01-06

arxiv.org/abs/0901.0668v2

Phys.Rev.D79:085009,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 13 figures, revtex4, two-column. V2: Typos corrected and references added

Scientific paper

10.1103/PhysRevD.79.085009

Non-universal boundary conditions in grand unified theories can lead to nonuniversal gaugino masses at the unification scale. In R-parity preserving theories the lightest supersymmetric particle is a natural candidate for the dark matter. The composition of the lightest neutralino and the identity of the next-to-lightest supersymmetric particle are studied, when nonuniversal gaugino masses come from representations of SO(10). In these cases, the thermal relic density compatible with the Wilkinson Microwave Anisotropy Probe observations is found. Relic densities are compared with the universal case. Mass spectra in the studied cases are discussed.

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