Radiative $b$ Decays and the Detection of Supersymmetric Dark Matter
The upper bond on the branching ratio for $b\to s\gamma$ decays implies a stringent lower bound on the mass of the pseudoscalar Higgs boson of the MSSM if sparticles are heavy. This leads to an upper bound on the expected event rate in experiments searchin
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aUniversityofWisconsin-MadisonMADPH-95-874hep-ph/9503283March1995RadiativeSupersymmetricbDecaysandDarktheMatterDetectionof ManuelDrees PhysicsDepartment,UniversityofWisconsin,Madison,WI53706,USAAbstractTheupperbondonthebranchingratioforb→sγdecaysimpliesastringentlowerboundonthemassofthepseudoscalarHiggsbosonoftheMSSMifsparticlesareheavy.Thisleadstoanupperboundontheexpectedeventrateinexperimentssearchingforheavysupersymmetricdarkmatter.ScenarioswithlightersparticlespectrumandlightpseudoscalarHiggsbosonarestillpossible,butonlyifµ<0,whichagainimpliesasmallLSPcountingrate.
