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Related papers: Phenomenology of Minimal Lepton Flavor Violation

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We calculate the rates for the charged lepton flavour violating (LFV) decays l_i -> l_j gamma, tau -> l pi, tau -> l eta('), mu^- -> e^-e^+e^-, the six three-body leptonic decays tau^- -> l_i^- l_j^+ l_k^- and the rate for mu-e conversion…

High Energy Physics - Phenomenology · Physics 2014-11-21 Andrzej J. Buras , Björn Duling , Thorsten Feldmann , Tillmann Heidsieck , Christoph Promberger

We perform a detailed analysis of several mu-tau lepton flavour violating (LFV) processes, namely tau --> mu X (X = gamma, e+ e-, mu+ mu-, rho, pi, eta, eta'), Z --> mu tau and Higgs boson decays into mu tau. First we present a model…

High Energy Physics - Phenomenology · Physics 2010-04-06 Andrea Brignole , Anna Rossi

We explore the most general phenomenology of charged lepton flavor violating (CLFV) decays of muon and tau leptons to the three body final states $(\bar{e}ee, \bar{\mu}\mu\mu, \bar{e}\mu\mu, \bar{\mu}\mu e,\bar{\mu}ee, \bar{e}e\mu)$. By…

High Energy Physics - Phenomenology · Physics 2025-04-14 Spencer Chang , Thomas Driscoll

Within an effective field theory framework, we discuss the possibility to discriminate among different operators that contribute to lepton flavor violating (LFV) tau decays. Correlations among decay rates in different channels are shown to…

High Energy Physics - Phenomenology · Physics 2014-05-21 Alejandro Celis , Vincenzo Cirigliano , Emilie Passemar

Within an effective-field-theory framework, we present a model-independent analysis of the potential of discovering new physics by searching for lepton flavour violation in heavy quarkonium decays and, more in general, we study the…

High Energy Physics - Phenomenology · Physics 2023-01-11 Lorenzo Calibbi , Tong Li , Xabier Marcano , Michael A. Schmidt

We argue that lepton flavor violating (LFV) decays $M \to \ell_1 \overline{\ell}_2$ of meson states $M$ with different quantum numbers could be used to put constraints on the Wilson coefficients of effective operators describing LFV…

High Energy Physics - Phenomenology · Physics 2017-10-03 Derek E. Hazard

We study current experimental bounds on charged lepton flavor violating (CLFV) $\mu$-$e$ interactions in the model-independent framework of the Standard Model Effective Field Theory (SMEFT). Assuming a generic flavor structure in the quark…

High Energy Physics - Phenomenology · Physics 2025-12-03 Filippo Delzanno , Kaori Fuyuto , Sergi Gonzàlez-Solís , Emanuele Mereghetti

Lepton Flavour Violation(LFV) is New Physics that must occur, but is stringently constrained by experiments searching for mu to e flavour change, such as $\mu \to e \gamma$, $\mu \to 3e$ and $\mu \to e$ conversion. However, in an Effective…

High Energy Physics - Phenomenology · Physics 2023-12-27 Sacha Davidson

We consider the leptonic and semileptonic (SL) lepton flavour violating (LFV) decays of the charged leptons in the minimal supersymmetric standard model (MSSM). The formalism for evaluation of branching fractions for the SL LFV…

High Energy Physics - Phenomenology · Physics 2008-11-26 Takeshi Fukuyama , Amon Ilakovac , Tatsuru Kikuchi

The lepton flavour violating (LFV) $\tau$ decays $\tau\to (e,\mu)\gamma$ and $\tau\to 3\mu$ are investigated in the frameworks of the TeV scale type I see-saw and Higgs Triplet (or type II see-saw) models. Predictions for the rates of these…

High Energy Physics - Phenomenology · Physics 2015-06-16 D. N. Dinh , S. T. Petcov

Here I review the status and prospects of experimental investigations into lepton flavor violation (LFV) in charged leptons. Rare LFV processes are naturally expected to occur through loops of TeV scale particles predicted by supersymmetric…

High Energy Physics - Experiment · Physics 2008-11-26 Toshinori Mori

We search for lepton-flavor-violating tau decays into three leptons (electron or muon) using 535 fb^{-1} of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No evidence for these decays is observed and we…

High Energy Physics - Experiment · Physics 2007-08-27 The Belle Collaboration , K. Abe

We calculate the predictions for lepton flavour violating (LFV) tau and muon decays, $l_j \to l_i \gamma$, $l_j \to 3 l_i$, $\mu-e$ conversion in nuclei and LFV semileptonic tau decays $\tau \to \mu PP$ with $PP= \pi^+\pi^-, \pi^0\pi^0,…

High Energy Physics - Phenomenology · Physics 2008-10-02 E. Arganda , M. J. Herrero

We search for lepton-flavor-violating tau decays into three leptons (electron or muon) using 535 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No evidence for these decays is observed, and we…

High Energy Physics - Experiment · Physics 2008-11-26 Y. Miyazaki

Lepton flavor-violating processes offer interesting possibilities to probe new physics at multi-TeV scale. We discuss those in the framework of effective field theory, emphasizing the role of gluonic operators. Those operators are obtained…

High Energy Physics - Phenomenology · Physics 2017-08-09 Alexey A. Petrov , Dmitry V. Zhuridov

We argue that lepton flavor violating (LFV) decays $M \to \ell_1 \overline \ell_2$ of quarkonium states $M$ with different quantum numbers could be used to put constraints on the Wilson coefficients of effective operators describing LFV…

High Energy Physics - Phenomenology · Physics 2016-10-26 Derek E. Hazard , Alexey A. Petrov

Lepton Flavor Violating (LFV) observables such as $\mu\to e\gamma$, $\mu\to 3e$ and $\mu N \to eN$ are among the best probes for new physics at the TeV scale. In the near future the bounds on these observables will improve by many orders of…

High Energy Physics - Phenomenology · Physics 2022-11-24 Joan Elias Miro , Clara Fernandez , Mehmet Asim Gumus , Alex Pomarol

Within the Standard Model Effective Field Theory framework, with operators up to dimension 6, we perform a model-independent analysis of the lepton-flavour-violating processes involving tau leptons. Namely, we study hadronic tau decays and…

High Energy Physics - Phenomenology · Physics 2021-01-01 Tomáš Husek , Kevin Monsálvez-Pozo , Jorge Portolés

In this work, we consider a hadronic de-excitation mechanism via lepton flavor violation (LFV). Namely, for vector and pseudoscalar meson decays of the form $V^\prime \to V \mu e$ and $P^\prime \to P \mu e$, respectively. They are described…

High Energy Physics - Phenomenology · Physics 2025-08-01 Fabiola Fortuna , Leonardo Esparza , Genaro Toledo

We study two- and three-body lepton flavor violating (LFV) decays involving leptons and neutral vector bosons $V=\rho^0, \omega, \phi, J/\psi, \Upsilon, Z^0$, as well as pseudo-scalar $P=\pi^0, \eta, \eta', \eta_c$ and scalar $S=f_0(500),…

High Energy Physics - Phenomenology · Physics 2019-02-18 Claudio O. Dib , Thomas Gutsche , Sergey G. Kovalenko , Valery E. Lyubovitskij , Ivan Schmidt
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