Towards a determination of the tau lepton dipole moments
High Energy Physics - Phenomenology
2015-06-12 v1
Abstract
The tau anomalous magnetic moment (a_tau) and electric dipole moment (d_tau) have not yet been observed. The present bounds on their values are of order 10^-2 and 10^-17 e*cm, respectively. We propose to measure a_tau with a precision of O(10^-3) or better and improve the existing limits on d_tau using precise tau- -> l- nu_tau \bar{nu}_l gamma (l=e or mu) data from high-luminosity B factories. A detailed feasibility study of this method is underway.
Cite
@article{arxiv.1301.5302,
title = {Towards a determination of the tau lepton dipole moments},
author = {Matteo Fael and Lorenzo Mercolli and Massimo Passera},
journal= {arXiv preprint arXiv:1301.5302},
year = {2015}
}
Comments
4 pages, presented at the 12th International Workshop on Tau Lepton Physics, Nagoya, Japan, 17-21 September 2012