6533b871fe1ef96bd12d1975
RESEARCH PRODUCT
Bounds on the Tau Magnetic Moments: Standard Model and Beyond
Gabriel A. González-sprinbergJorge VidalArcadi Santamariasubject
PhysicsNuclear and High Energy PhysicsParticle physicsGauge bosonMagnetic momentAnomalous magnetic dipole momentElectroweak interactionFOS: Physical sciencesAtomic and Molecular Physics and OpticsSymmetry (physics)Partícules (Física nuclear)Standard ModelHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Magnetic dipoleLeptondescription
We obtain new bounds for the magnetic dipole moments of the tau lepton. These limits on the magnetic couplings of the tau to the electroweak gauge bosons (gamma, W, Z) are set in a model independent way using the most general effective Lagrangian with the SU(2)_L x U(1)_Y symmetry. Comparison with data from the most precise experiments at high energies shows that the present limits are more stringent than the previous published ones. For the anomalous magnetic moment the bounds are, for the first time, within one order of magnitude of the standard model prediction.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-01-01 |