Question of Lorentz invariance in muon decay
High Energy Physics - Phenomenology
2016-06-08 v3 Nuclear Theory
Abstract
Possibilities to test the Lorentz invariance of the weak interaction in muon decay are considered. We derive the direction-dependent muon-decay rate with a general Lorentz-violating addition to the W-boson propagator. We discuss measurements of the directional and boost dependence of the Michel parameters and of the muon lifetime as a function of absolute velocity. The total muon-decay rate in the Lorentz-violating Standard Model Extension is addressed. Suggestions are made for dedicated (re)analyses of the pertinent data and for future experiments.
Keywords
Cite
@article{arxiv.1412.3257,
title = {Question of Lorentz invariance in muon decay},
author = {J. P. Noordmans and C. J. G. Onderwater and H. W. Wilschut and R. G. E. Timmermans},
journal= {arXiv preprint arXiv:1412.3257},
year = {2016}
}
Comments
17 pages, 2 figures, accepted for publication in Phys. Rev. D