CP Violation in radiative Z Decays
High Energy Physics - Phenomenology
2015-06-25 v1
Abstract
We propose to test the CP symmetry in the reactions Z -> mu+ mu- gamma and Z -> tau+ tau- gamma. The experimental analysis of angular correlations allows to determine a set of effective couplings: the electric and weak dipole moments of the muon and the tau lepton, and in particular chirality conserving 4-particle couplings, all of which can be induced by CP--violation in renormalizable theories of electroweak interactions beyond the Standard Model. We update an indirect bound on the weak dipole moment of the muon.
Cite
@article{arxiv.hep-ph/9703216,
title = {CP Violation in radiative Z Decays},
author = {D. Bruss and O. Nachtmann and P. Overmann},
journal= {arXiv preprint arXiv:hep-ph/9703216},
year = {2015}
}
Comments
19 pages, Latex, 4 Figures in PostScript format