منابع مشابه
Discovering Non-Abelian Weak Couplings and an Anomalous Magnetic Dipole Moment of the W
In view of the forthcoming results on W± pair production at LEP 2, we emphasize that direct empirical evidence on non-trivial properties of the weak vector bosons can be obtained with relatively limited integrated luminosity. An integrated luminosity of 10 pb at √ s = 175 GeV will be sufficient to provide direct experimental evidence for non-vanishing self-couplings of nonAbelian type among the...
متن کاملWeak 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...
متن کاملElectric Dipole Moment of Magnetic Monopole
The electric dipole moment of a magnetic monopole with spin is studied in the N = 2 supersymmetric gauge theory. Dipole moments of electric charge distributions, as well as dipole moments due to magnetic currents, are calculated. The contribution of the charge distribution of the fermion to the gyroelectric ratio is expressed in terms of ζ(3).
متن کاملThe Weak-Magnetic Moment of Heavy Quarks
With initial and final particles on-shell, the anomalous weak-magnetic dipole moments of b and c quarks are electroweak gauge invariant quantities of the effective couplings Zbb̄ and Zcc̄, respectively, and good candidates to test the Standard Model and/or new physics. Here we present a complete computation of these quantities within the Standard Model. We show that decoupling properties with res...
متن کاملEffect of longitudinal electron polarization in the measurement of the tau weak dipole moment in e+e- collisions.
We show that certain CP-odd momentum correlations in the production and subsequent decay of tau pairs in ee collisions get enhanced when the electron beam is longitudinally polarized. Analytic expressions for these correlations are obtained when ττ have a “weak” dipole form factor (WDFF) coupling to Z in the case of two-body decay modes of the τ . Expressions of the variance of these correlatio...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1995
ISSN: 0550-3213
DOI: 10.1016/0550-3213(94)00525-j