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Many new physics scenarios beyond the Standard Model often necessitate the existence of a (light) neutral scalar $H$, which might couple to the charged leptons in a flavor violating way, while evading all existing constraints. We show that…

High Energy Physics - Phenomenology · Physics 2018-06-04 P. S. Bhupal Dev , Rabindra N. Mohapatra , Yongchao Zhang

We study the possible signature for lepton-flavor violation processes in the scalar-lepton sector of the minimal supersymmetric model at future electron-photon colliders. We find that an $\egm$ collider can provide a good opportunity to…

High Energy Physics - Phenomenology · Physics 2016-08-25 J. -J. Cao , T. Han , X. -M. Zhang , G. -R. Lu

In supersymmetric scenarios, the seesaw mechanism involving heavy right-handed neutrinos implies sizable lepton flavor violation (LFV) in the slepton sector. We discuss the potential of detecting LFV processes at the LHC in mSUGRA+seesaw…

High Energy Physics - Phenomenology · Physics 2007-10-15 Frank Deppisch

This note reviews recent theoretical developments in the study of charged lepton flavour violation. The first part illustrates the status of precise next-to-leading order quantum electrodynamics calculations for the background of charged…

High Energy Physics - Phenomenology · Physics 2017-05-22 Giovanni Marco Pruna

We comprehensively study the potential for discovering lepton flavor violation (LFV) phenomena associated with the $Z$ and Higgs bosons at the LHeC and FCC-he. Our meticulous investigation reveals the remarkable suitability of…

High Energy Physics - Phenomenology · Physics 2023-08-10 Adil Jueid , Jinheung Kim , Soojin Lee , Jeonghyeon Song , Daohan Wang

We study the lepton flavor violating (LFV) decays Z-> l_i l_j (l_{i,j}=e,\mu,\tau) in the framework of the minimal 331 model. The main contributions arise at the one-loop level via a doubly charged bilepton with general LFV couplings. We…

High Energy Physics - Phenomenology · Physics 2011-09-29 I. Cortes-Maldonado , A. Moyotl , G. Tavares-Velasco

We present a comprehensive analysis of the potential sensitivity of the Electron-Ion Collider (EIC) to charged lepton flavor violation (CLFV) in the channel $ep\to \tau X$, within the model-independent framework of the Standard Model…

High Energy Physics - Phenomenology · Physics 2021-07-29 Vincenzo Cirigliano , Kaori Fuyuto , Christopher Lee , Emanuele Mereghetti , Bin Yan

Gauged extensions [$SU(2)_L\otimes U(1)_Y\otimes U(1)_X$] of the standard $SU(2)_L\otimes U(1)_Y$ model obtained without extending the fermion content of the model are studied. Models that are possible when $U(1)_X$ is identified with some…

High Energy Physics - Phenomenology · Physics 2009-10-28 Gautam Dutta , K. B. Vijaykumar , Anjan S. Joshipura

The minimal type-I seesaw model provides a simple explanation of neutrino flavor oscillations and induces charged lepton flavor violation (cLFV). Despite extensive previous studies, semileptonic cLFV channels remain underexplored. Using…

High Energy Physics - Phenomenology · Physics 2026-04-30 Kevin A. Urquía-Calderón , Oleg Ruchayskiy

We revisit the potential of a Linear Collider concerning the study of lepton flavour violation, in view of new LHC bounds and of the (very) recent developments in lepton physics. Working in the framework of a type I supersymmetric seesaw,…

High Energy Physics - Phenomenology · Physics 2015-03-03 A. Abada , A. J. R. Figueiredo , J. C. Romao , A. M. Teixeira

We introduce a new method to search for the lepton-flavor violating Higgs decays $h\rightarrow\tau\mu$ and $h\rightarrow\tau e$ in the leptonic $\tau$ decay channel. In particular, the Standard Model background is estimated in a fully data…

High Energy Physics - Phenomenology · Physics 2014-07-30 Shikma Bressler , Avital Dery , Aielet Efrati

Considering the constraints on the lepton flavor violating (LFV) couplings of the new gauge boson $Z'$ to ordinary leptons from the experimental upper limit for the LFV process $\ell\rightarrow 3\ell'$, we calculate the contributions of…

High Energy Physics - Phenomenology · Physics 2016-03-02 Chong-Xing Yue , Jia-Rui Zhou

In the present work we review the most prominent lepton flavor violating processes ($\mu \ra e\gamma$, $\mu \ra 3e$, $(\mu , e)$ conversion, $M-\bar M$ oscillations etc), in the context of unified gauge theories. Many currently fashionable…

High Energy Physics - Phenomenology · Physics 2011-07-19 T. S. Kosmas , G. K. Leontaris , J. D. Vergados

Little Higgs Models are a possible elegant solution to the hierarchy problem on the Higgs mass. As they predict naturally small deviations with respect to SM results, they are in agreement with all current experimental data. In this…

High Energy Physics - Phenomenology · Physics 2016-10-10 P. Roig

We study the effects of lepton flavour violation (LFV) on the production processes e+e- --> \chi+_i \chi-_j at a linear collider with longitudinal e+ and e- beam polarizations. In the case of LFV the sneutrino mass eigenstates have no…

High Energy Physics - Phenomenology · Physics 2009-11-13 Karl Hohenwarter-Sodek , Thomas Kernreiter

We present the results of an extensive analysis of lepton flavour violating decays in the Littlest Higgs model with T-parity (LHT). As lepton flavour violation is highly suppressed in the Standard Model by small neutrino masses, the LHT…

High Energy Physics - Phenomenology · Physics 2008-11-26 Cecilia Tarantino

Prospective searches for lepton flavor violation (LFV) in rare kaon decays at the existing and future intermediate-energy accelerators are considered. The proposed studies are complementary to LFV searches in muon-decay experiments and…

High Energy Physics - Phenomenology · Physics 2008-11-26 L. G. Landsberg

In the context of flavor-universal topcolor-assisted technicolor (TC2) models, we calculate the lepton flavor violating (LFV) $Z\to l_il_j$ decays. We find that the extra U(1) gauge boson $Z^{\prime}$ can give significant contributions to…

High Energy Physics - Phenomenology · Physics 2009-11-07 Chongxing Yue , Hong Li , Yanming Zhang , Yong Jia

We argue that radiative lepton flavor violating (RLFV) decays $P \to \gamma \ell_1 \overline{\ell}_2$ of $P =B^0_q$, $\bar{D}^0$, and $K^0$ meson states are robust probes of new physics models. In particular, they could be used to put…

High Energy Physics - Phenomenology · Physics 2018-07-25 Derek E. Hazard , Alexey A. Petrov

The triplet Higgs model, which is an extension of the standard model with a weak-scale triplet Higgs boson, is capable of generating small neutrino masses naturally. We investigate lepton flavor violation mediated by the triplet Higgs…

High Energy Physics - Phenomenology · Physics 2009-11-10 Mitsuru Kakizaki , Yoshiteru Ogura , Fumitaka Shima