SUSY Dark Matter and Quintessence

Details SUSY Dark Matter and Quintessence SUSY Dark Matter and Quintessence

2003-09-18

arxiv.org/abs/hep-ph/0309220v2

JCAP 0311 (2003) 006

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, 11 figures, JHEP style; v2: references and a few comments added, version accepted for publication in JCAP

Scientific paper

10.1088/1475-7516/2003/11/006

We investigate the enhancement of neutralino relic density in the context of a realistic cosmological scenario with Quintessence. The accurate relic density computation we perform allows us to be sensitive to both cases with shifts in the abundance at the percent level, and to enhancements as large as 10^6. We thoroughly analyze the dependence on the supersymmetric spectrum and on the mass and composition of the lightest neutralino. We point out that supersymmetric models yielding a wino or higgsino-like lightest neutralino become cosmologically appealing in the presence of Quintessence.

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