Chi**2 analysis of the minimal supergravity model including WMAP, g(mu)-2 and b -> s gamma constraints

Simple item page
dc.creatorBaer, Howard
dc.creatorBalazs, Csaba
dc.date2003-03-13
dc.date2003-04-21
dc.date.accessioned2026-07-07T10:48:44Z
dc.date.available2026-07-07T10:48:44Z
dc.descriptionRecent results from the WMAP measurements of the cosmic background radiation yield very tight constraints on the relic density of supersymmetric cold dark matter. We combine the WMAP constraint with those from the anomalous magnetic moment of the muon and the b -> s gamma branching fraction in a chi^2 determination over the minimal supergravity model (mSUGRA) parameter space. The most favored region of mSUGRA parameter space for almost all tan(beta) values is the hyperbolic branch/focus point (HB/FP) region, with moderate to small values of superpotential Higgs mass |mu| and large GUT scale scalar mass m_0. These favored regions of mSUGRA parameter space can be probed by direct search experiments for supersymmetric dark matter. An exception to the HB/FP region can occur at very large tan(beta) with positive mu values, where wide regions allow resonance annihilation of neutralinos in the early universe.
dc.description8 pages, 3 figures. JCAP version. A copy of the paper with better resolution figures can be found at http://www.hep.fsu.edu/~balazs/Physics/Papers/2003/
dc.identifierhttps://arxiv.org/abs/hep-ph/0303114
dc.identifierhttp://arxiv.org/abs/hep-ph/0303114
dc.identifierJCAP0305:006,2003
dc.identifierdoi:10.1088/1475-7516/2003/05/006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183984
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleChi**2 analysis of the minimal supergravity model including WMAP, g(mu)-2 and b -> s gamma constraints
dc.typetext

Files

Collections

arXiv