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Related papers: Measuring Lepton Flavor Violation at LHC

200 papers

Observed neutrino oscillations imply that the global lepton flavor symmetry of the Standard Model must be broken. Therefore, searches for lepton flavor violation (LFV) are promising probes of new physics beyond the Standard Model.…

High Energy Physics - Phenomenology · Physics 2025-07-23 P. S. Bhupal Dev

New physics scenarios beyond the Standard Model (SM) for neutrino mass mechanism often necessitate the existence of a neutral scalar $H$ and/or doubly-charged scalar $H^{\pm\pm}$, which couple to the SM charged leptons in a flavor violating…

High Energy Physics - Phenomenology · Physics 2019-02-14 P. S. Bhupal Dev , Rabindra N. Mohapatra , Yongchao Zhang

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

Lepton flavour violation (LFV) naturally occurs in many new physics models, specifically in those explaining the $B$ anomalies. While LFV has already been studied for mesonic decays, it is important to consider also baryonic decays mediated…

High Energy Physics - Phenomenology · Physics 2021-09-15 Marzia Bordone , Muslem Rahimi , K. Keri Vos

We analyse the lepton sector of the Left-Right Twin Higgs Model. This model offers an alternative way to solve the "little hierarchy" problem of the Standard Model. We show that one can achieve an effective see-saw to explain the origin of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Asmaa Abada , Irene Hidalgo

We explore Two Higgs Doublet Models with non-standard flavor structures. In analogy to the four, well studied, models with natural flavor conservation (type 1, type 2, lepton-specific, flipped), we identify four models that preserve an…

High Energy Physics - Phenomenology · Physics 2018-11-08 Wolfgang Altmannshofer , Brian Maddock

The new particles predicted by the topcolor-assisted technicolor ($TC2$) model and the littlest Higgs model with T-parity (called $LHT$ model) can induce the lepton flavor violation ($LFV$) couplings at tree level or one loop level, which…

High Energy Physics - Phenomenology · Physics 2014-11-20 Wei Liu , Chong-Xing Yue , Jiao Zhang

We point out that extensions of the Standard Model with low scale (~TeV) lepton number violation (LNV) generally lead to a pattern of lepton flavor violation (LFV) experimentally distinguishable from the one implied by models with GUT scale…

High Energy Physics - Phenomenology · Physics 2009-11-10 V. Cirigliano , A. Kurylov , M. J. Ramsey-Musolf , P. Vogel

In spite of the large lepton flavour violation (LFV) observed in neutrino oscillations, within the Standard Model, we do \textit{not} expect any visible LFV in the charged lepton sector ($\mu \to e, \gamma$, $\tau \to \mu, \gamma$, etc.).…

High Energy Physics - Phenomenology · Physics 2008-11-26 Antonio Masiero , Sudhir K. Vempati , Oscar Vives

Lepton flavor violating processes are optimal observables to test new physics, since they are forbidden in the Standard Model while they may be generated in new theories. The usual approach to these processes is to perform the computations…

High Energy Physics - Phenomenology · Physics 2020-02-18 Xabier Marcano , Roberto A. Morales

In Randall-Sundrum models with gauge bosons and fermions in the extra dimensional bulk, it is possible to build models of flavor by localizing the fermions in the extra dimension. Since the Higgs must be localized at or close to the TeV…

High Energy Physics - Phenomenology · Physics 2008-11-26 Priscila M. Aquino , Gustavo Burdman , Oscar J. P. Eboli

We investigate lepton flavour violation in a class of minimal left-right symmetric models where the left-right symmetry is broken by triplet scalars. In this context we present a method to consistently calculate the triplet-Yukawa couplings…

High Energy Physics - Phenomenology · Physics 2017-03-09 Cesar Bonilla , Manuel E. Krauss , Toby Opferkuch , Werner Porod

A recent search for the lepton flavor violating (LFV) decays of the Higgs boson, performed by CMS collaboration, reports an interesting deviation from the standard model (SM). The search conducted in the channel $H\rightarrow \mu\tau_e$ and…

High Energy Physics - Phenomenology · Physics 2016-10-12 Biplob Bhattacherjee , Sabyasachi Chakraborty , Swagata Mukherjee

We review the influence of lepton flavour violation (LFV) on the production processes e+e- -> ~chi+_i ~chi-_j at the International Linear Collider (ILC) with longitudinal e+ and e- beam polarizations in the framework of the Minimal…

High Energy Physics - Phenomenology · Physics 2007-10-09 Karl Hohenwarter-Sodek , Thomas Kernreiter

We study the lepton flavor violating process, $e+ T \to \tau +T'$, at a few GeV. This process can be studied by experiments directing GeV scale electron or positron beams on internal or fixed targets. We study the effects of some low energy…

High Energy Physics - Phenomenology · Physics 2016-02-03 Wei Liao , Xiao-Hong Wu

Two topics have recently risen to prominence within the ongoing searches of beyond-Standard Model effects in $b$ and $c$ decays: observables that test lepton flavor universality (LFU) as well as lepton flavor violation (LFV). A coherent set…

High Energy Physics - Phenomenology · Physics 2023-10-10 Diego Guadagnoli , Patrick Koppenburg

If sleptons are produced at LEP II or the Next Linear Collider, lepton flavor violation can be probed at a level significantly below the current bounds from rare processes, such as $\mu \to e\gamma$. Polarizable $e^-$ beams and the $e^-e^-$…

High Energy Physics - Phenomenology · Physics 2014-11-17 Jonathan L. Feng

Lepton Flavor Universality Violation (LFUV) in $b\rightarrow s l^+ l^-$ processes is investigated in the context of a 331 model. It is shown that in order to explain the experimentally observed deviations from the Standard Model in these…

High Energy Physics - Phenomenology · Physics 2020-03-09 Soumia Lebbal , Noureddine Mebarki , Jamal Mimouni

Measurement of Lepton-Flavor Violation (LFV) in the minimal SUSY Standard Model (MSSM) at Large Hadron Collider (LHC) is studied based on a realistic simulation. We consider the LFV decay of the second-lightest neutralino, $\tilde{\chi}^0_2…

High Energy Physics - Phenomenology · Physics 2008-11-26 Junji Hisano , Ryuichiro Kitano , Mihoko M. Nojiri

The discovery of lepton number violation (LNV) at the LHC would have profound consequences for the viability of high-scale leptogenesis models. As an example, we discuss the case of observing a signal with two same-sign leptons, two jets…

High Energy Physics - Phenomenology · Physics 2014-08-25 Frank F. Deppisch , Julia Harz