Precise limits from lepton flavour violating processes on the Littlest Higgs model with T-parity

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

41 pages, 11 figures; v3: matches published version in JHEP

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Cited by in corpus (9)

• Research Proposal for an Experiment to Search for the Decay μ -> eee
• The model-discriminating power of lepton flavor violating tau decays
• Tau and muon lepton flavor violations in the littlest Higgs model with T-parity
• D^0 -> gamma gamma and D^0 -> mu^+ mu^- Rates on an Unlikely Impact of the Littlest Higgs Model with T-Parity
• Lepton flavor violation in the Simplest Little Higgs model
• Testing the CKM Picture of Flavour and CP Violation in Rare K and B Decays and Particle-Antiparticle Mixing
• Probing lepton flavor violation signal via e+ e- (gamma gamma) ---> l(i) anti-l(j) in the littlest Higgs model with T-parity at the ILC
• One-loop flavor change in Little Higgs models
• Lepton flavor violating signals of the LHT model via e^{+}e^{-} and γγcollisions at the ILC