Anomalous charged current couplings of the tau and implications for tau compositeness and two-Higgs doublet models

Abstract

The leptonic branching fractions of the tau lepton are sensitive to anomalous charged current interactions. We use recent experimental measurements to determine the weak charged current magnetic and electric dipole moments and the Michel parameter $\eta$ with unprecedented precision. These results are then used to constrain the tau compositeness scale and the allowed parameter space for Higgs doublet models.

3 pages, 1 figure

References in corpus (3)

• Search For Charged Higgs Decays of the Top Quark Using Hadronic Decays of the Tau Lepton
• Searching For Anomalous $\tau \nu W$ Couplings
• The tan(beta) - M_H^\pm bound from inclusive semi-tauonic B-decays in the MSSM

Cited by in corpus (5)

• Model independent bounds on the tau lepton electromagnetic and weak magnetic moments
• Large 2HDM(II) one-loop corrections in leptonic tau decays
• Effective CP-violating operators of the tau lepton and some of their phenomenologies
• Angular distribution asymmetry in tau^- --> pi^- pi^0 nu_tau decay in the two-Higgs-doublet model with large tan beta
• Can a Nonstandard Invisible Pair Mimic the Michel Distribution?