Precise limits from lepton flavour violating processes on the Littlest Higgs model with T-parity
High Energy Physics - Phenomenology
2009-02-10 v3
Abstract
We recalculate the leading one-loop contributions to mu > e gamma and mu -> eee in the Littlest Higgs model with T-parity, recovering previous results for the former. When all the Goldstone interactions are taken into account, the latter is also ultraviolet finite. The present experimental limits on these processes require a somewhat heavy effective scale ~2.5 TeV, or the flavour alignment of the Yukawa couplings of light and heavy leptons at the ~10% level, or the splitting of heavy lepton masses to a similar precision. Present limits on tau decays set no bounds on the corresponding parameters involving the tau lepton
Cite
@article{arxiv.0811.2891,
title = {Precise limits from lepton flavour violating processes on the Littlest Higgs model with T-parity},
author = {F. del Aguila and J. I. Illana and M. D. Jenkins},
journal= {arXiv preprint arXiv:0811.2891},
year = {2009}
}
Comments
41 pages, 11 figures; v3: matches published version in JHEP