Neutralino relic density in the minimal supergravity model.

Details Neutralino relic density in the minimal supergravity model. Neutralino relic density in the minimal supergravity model.

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998phr...307..207b&link_type=abstract

Physics Reports, Vol. 307, No. 1 - 4, p. 207 - 214

Physics

1

Cosmology: Dark Matter, Cosmology: Elementary Particles

Scientific paper

The relic density (Ωχ01h2) of the neutralino dark matter is evaluated in the minimal supergravity model for values of the Higgs sector parameter tan β ≡ v2/v1 between the two infrared fixed points of the top quark Yukawa coupling, 1.8 ⪉ tan β ⪉ 56. For a cosmologically interesting relic density, 0.1 ⪉ Ωχ01h2 ⪉ 0.4, the authors find that the supergravity parameter space is tightly constrained.

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