WMAP Constraints, SUSY Dark Matter and Implications for the Direct Detection of SUSY

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dc.creatorChattopadhyay, Utpal
dc.creatorCorsetti, Achille
dc.creatorNath, Pran
dc.date2003-03-24
dc.date2003-07-28
dc.date.accessioned2026-07-07T10:28:46Z
dc.date.available2026-07-07T10:28:46Z
dc.descriptionRecently, WMAP has measured the cosmological parameters to a much greater accuracy. We analyze the implications of this more precise measurement for supersymmetric dark matter and for the direct detection of supersymmetry at accelerators. We consider mSUGRA including also the hyperbolic branch in the radiative breaking of the electroweak symmetry. On the part of the hyperbolic branch where the lightest neutralino is dominantly a higgsino rather than being mostly a bino, the relic density constraints are satisfied by coannihilation with the next lightest neutralino and the light chargino. Including this branch the lightest neutralino mass satisfies $m_{χ_1^0}\leq 1200$ GeV for $\tanβ\leq 50$. Constraints of $b\to s+γ$ and of $g_μ-2$ are also analyzed. It is shown that the neutralino-proton cross section in each case will fall within the reach of dark matter experiments. Possibility for the direct detection of supersymmetry is discussed in the allowed regions of the parameter space consistent with WMAP constraints. A brief discussion of the hyperbolic branch and focus point region (HB/FP) is also given.
dc.descriptionRevised version to appear in Physical Review D. 23 pages, Latex, including 7 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0303201
dc.identifierhttp://arxiv.org/abs/hep-ph/0303201
dc.identifierPhys.Rev.D68:035005,2003
dc.identifierdoi:10.1103/PhysRevD.68.035005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177567
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleWMAP Constraints, SUSY Dark Matter and Implications for the Direct Detection of SUSY
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