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 with unprecedented precision. These results are then used to constrain the tau compositeness scale and the allowed parameter space for Higgs doublet models.

Notes

Originally posted at http://arxiv.org/abs/hep-ph/9712384v1. Preprint of an article published in Physical Review D, v.58 no.1, 1998.

Keywords

leptonic branching functions, tau lepton, Higgs doublet models, high energy physics phenomenology

Subject Categories

Leptons (Nuclear physics), Phenomenological theory (Physics), Couplings, Dipole moments

Disciplines

Physics

Publication Date

1998

Click button above to open, or right-click to save.

Included in

Physics Commons

Share

COinS