18 research outputs found
Lepton Dipole Moments and Rare Decays in the CP-violating MSSM with Nonuniversal Soft-Supersymmetry Breaking
We investigate the muon anomalous magnetic dipole moment (MDM), the muon
electric dipole moment (EDM) and the lepton-flavour-violating decays of the
lepton, and , in the CP-violating
Minimal Supersymmetric Standard Model (MSSM) with nonuniversal
soft-supersymmetry breaking. We evaluate numerically the muon EDM and the
branching ratios and , after taking
into account the experimental constraints from the electron EDM and muon MDM.
Upon imposition of the experimental limits on our theoretical predictions for
the aforementioned branching ratios and the muon MDM, we obtain an upper bound
of about on the muon EDM which lies well within the
explorable reach of the proposed experiment at BNL.Comment: Latex, 26 pages, 8 figures, accepted for publication in Phys. Rev.
Muon anomalous magnetic moment, and dark matter detection in the string models with dilaton domination
We consider the muon anomalous magnetic moment in the string models
with dilaton domination with two different string scales : the usual GUT scale
and the intermediate scale. After imposing the direct search limits on the
lightest neutral Higgs and SUSY particle masses and the lightest neutralino
LSP, the is predicted to be less than for GeV ( GeV). If
we further impose the branching ratio, the predicted
becomes lower to for intermediate
string scale. The resulting LSP - proton scattering cross section is less than
pb, which is below the sensitivity of the current direct dark
matter search experiments, but could be covered by future experiments.Comment: PRD accepted versio