Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-02-27
Phys.Lett.B508:65-73,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, 3 eps figures, for a version with high-resolution figures, go to http://www.hep.umn.edu/~olive/ENO4.ps
Scientific paper
10.1016/S0370-2693(01)00480-4
We combine the constraint suggested by the recent BNL E821 measurement of the anomalous magnetic moment of the muon on the parameter space of the constrained MSSM (CMSSM) with those provided previously by LEP, the measured rate of b to s gamma decay and the cosmological relic density Omega-hsquared. Our treatment of Omega-hsquared includes carefully the direct-channel Higgs poles in annihilation of pairs of neutralinos chi and a complete analysis of chi - slepton coannihilation. We find excellent consistency between all the constraints for tan beta > 10 and mu > 0, for restricted ranges of the CMSSM parameters m_0 and m_1/2. All the preferred CMSSM parameter space is within reach of the LHC, but may not be accessible to the Tevatron collider, or to a first-generation e^+ e^- linear collider with centre-of-mass energy below 1.2 TeV.
Ellis John
Nanopoulos Dimitri V.
Olive Keith A.
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