Disentangling new physics contributions in lepton flavour violating tau decays

Abstract

The possibility to discriminate between different operators contributing to lepton flavour violating tau decays is discussed within an effective field theory framework. Correlations among decay rates in different channels as well as differential distributions in many-body decays are considered. Recent developments in the determination of the hadronic form factors for $\tau \to \ell \pi \pi$ ($\ell =e,\mu$) decays are incorporated in the analysis. The above issues are exemplified by considering a Higgs-like boson with lepton flavour violating couplings. Implications of the search for lepton flavour violating Higgs decays performed recently by the CMS collaboration are also discussed.

7 pages, 8 figures and 1 table. Contribution to the Proceedings of the ICHEP 2014 Conference

References in corpus (17)

• Searches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma
• Search for Lepton Flavor Violating Tau Decays into Three Leptons with 719 Million Produced Tau+Tau- Pairs
• Flavour physics of leptons and dipole moments
• Flavor-phenomenology of two-Higgs-doublet models with generic Yukawa structure
• Flavour-Changing Decays of a 125 GeV Higgs-like Particle
• Lepton flavor violation in the Higgs sector and the role of hadronic tau-lepton decays
• Higgs-induced lepton flavor violation
• Lepton flavour violating semileptonic tau decays in constrained MSSM-seesaw scenarios
• Improved predictions for $\mu \to e$ conversion in nuclei and Higgs-induced lepton flavor violation
• The model-discriminating power of lepton flavor violating tau decays
• Search for Lepton-Flavor-Violating tau Decays into a Lepton and a Vector Meson
• Search for Lepton-Flavor-Violating and Lepton-Number-Violating tau to lhh' Decay Modes
• Effective Theory and Simple Completions for Neutrino Interactions
• Asymmetric lepton-flavor violating Higgs decays
• Sensitivity to the Higgs Sector of SUSY-Seesaw Models in the Lepton Flavour Violating tau-->mu f0(980) decay
• Search for Lepton-Flavor-Violating tau Decays into a Lepton and an f0(980) Meson
• Search for $\tau \to \mu +\gamma$ decay at Super $c-\tau$ factory

Cited by in corpus (3)

• Renormalisation-group improved analysis of $\mu \to e$ processes in a systematic effective-field-theory approach
• Higgs Decay $h\to \mu \tau$ with Minimal Flavor Violation
• Explaining the LHC flavour anomalies