منابع مشابه
Weak Magnetic Dipole Moments in the MSSM ∗
We calculate the weak magnetic dipole moment of different fermions in the MSSM. In particular, we consider in detail the predictions for the WMDM of the τ lepton and bottom quark. We compare the purely SUSY contributions with two Higss doublet models and SM predictions. For the τ lepton, we show that chargino diagrams give the main SUSY contribution, which for tan β = 50 can be one order of mag...
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A minimal supersymmetric version of the Standard Model with complex parameters allows contributions to the weak–electric dipole moments of fermions at the one–loop level. Assuming generation–diagonal trilinear soft–susy–breaking terms and the usual GUT constraint, a set of CP–violating physical phases can be introduced. In this paper the general expressions for the one–loop contribution to the ...
متن کاملOne–loop MSSM Contribution to the Weak Magnetic Dipole Moments of Heavy Fermions
The MSSM predictions at the one-loop level for the weak-magnetic dipole moments of the τ lepton and the b quark are analysed. The entire supersymmetric parameter space is scanned with the usual GUT constraint and common squark and slepton mass parameters. The real part of aτ is dominated by the chargino contribution, being the same order as the SM one or even larger in the high tan β region whe...
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We present a detailed study of the Thallium, neutron, Mercury and deuteron electric dipole moments (EDMs) in the CP-violating Minimal Supersymmetric extension of the Standard Model (MSSM). We take into account the complete set of one-loop graphs, the dominant Higgs-mediated two-loop diagrams, the complete CP-odd dimension-six Weinberg operator and the Higgs-mediated four-fermion operators. We i...
متن کاملWeak magnetic dipole moments in two-Higgs-doublet models.
We investigate the e ects of the new scalars in a two-Higgs-doublet model on the weak magnetic dipole moments of the fermions at the Z peak. Proportionality of the Yukawa couplings to the fermion masses, and to tan , makes such e ects more important for the third family, and potentially relevant. For the lepton, the new diagrams are suppressed by v = 2 sin 2 W 1=2, or by powers ofm =MZ , but ma...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1998
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(98)00033-9