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Related papers: Exploring Optimal Sensitivity of Lepton Flavor Vio…

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The production of $\tau\mu$ pairs in electron-positron collisions offers a powerful probe of lepton flavor violation. In this work, we calculate the $e^+ e^- \to \tau \mu$ cross section within the framework of the Standard Model Effective…

High Energy Physics - Phenomenology · Physics 2025-05-20 Wolfgang Altmannshofer , Pankaj Munbodh

Lepton flavor violation is one of the cleanest probes of physics beyond the standard model. In this work, we explore the sensitivity of the process $e^+ e^- \to \tau \mu$ to new physics above the TeV scale at the proposed circular…

High Energy Physics - Phenomenology · Physics 2023-05-09 Wolfgang Altmannshofer , Pankaj Munbodh , Talise Oh

We investigate the unique potential of a high-energy muon collider to probe lepton-flavor-violating signals arising from physics beyond the Standard Model (SM). Low-energy, precision searches for charged lepton-flavor violation (LFV) are…

High Energy Physics - Phenomenology · Physics 2026-01-28 Pouya Asadi , Hengameh Bagherian , Katherine Fraser , Samuel Homiller , Qianshu Lu

We consider theories where lepton flavor is violated, in particular concentrating on the four fermion operator consisting of three electrons and a tau. Strong constraints are available from existing searches for tau -> eee, requiring the…

High Energy Physics - Phenomenology · Physics 2015-01-14 Brandon Murakami , Tim M. P. Tait

Lepton flavor violating (LFV) process $e^+ e^- \to e^+ \tau^-$ induced by the four-Fermi contact interactions at the International Linear Collider (ILC) is studied. Taking account of the event selection conditions, it is shown that the ILC…

High Energy Physics - Phenomenology · Physics 2018-12-27 Gi-Chol Cho , Yuka Fukuda , Takanori Kono

We investigate the Lepton Flavor Violating (LFV) process $e^{+}e^{-}\to e^{+}e^{-}e\mu$ ($e=e^-,\,e^+,\,\mu=\mu^-,\,\mu^+ $) at future circular colliders, probing the effective $\gamma\gamma e\mu$ interaction through photon fusion. Within…

High Energy Physics - Phenomenology · Physics 2026-01-21 M. A. Arroyo-Ureña , R. Gaitán , Marcela Marín , Humberto Salazar , M. G. Villanueva-Utrilla

We investigate the sensitivity of electron-proton ($ep$) colliders for charged lepton flavor violation (cLFV) in an effective theory approach, considering a general effective Lagrangian for the conversion of an electron into a muon or a tau…

High Energy Physics - Phenomenology · Physics 2021-06-08 Stefan Antusch , A. Hammad , Ahmed Rashed

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

We estimate the sensitivity of Wilson coefficients of the lepton flavor-violating dimension-six operators at the proposed $\mu^+\mu^-$ collider. We compute the signal significance at $\sqrt{s}$ = 3 and 10 TeV, respectively, with an…

High Energy Physics - Phenomenology · Physics 2025-01-28 Sukanta Dutta , Purnath Unnikrishnan , Yashasvi

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

Lepton flavor violating interactions are absent in the standard model but are expected in various beyond standard models. In this work, the potential of the future circular electron-positron collider to probe the four fermion lepton flavor…

High Energy Physics - Phenomenology · Physics 2021-09-28 S. M. Etesami , R. Jafari , M. Mohammadi Najafabadi , S. Tizchang

The search for lepton flavor violation (LFV) is a powerful probe to look for new physics beyond the Standard Model. We explored the possibility of searches for LFV $Z$ boson couplings to electron and muon pairs at the upcoming…

High Energy Physics - Phenomenology · Physics 2025-12-04 Anjan Kumar Barik , Atri Dey , Tousik Samui

With the improvement of muon acceleration technology, it has received great interest to exploit high-energy muon beams for collision or target experiments. We investigate possible charged Lepton Flavor Violation (cLFV) processes mediated by…

High Energy Physics - Experiment · Physics 2024-10-29 Ran Ding , Jingshu Li , Meng Lu , Zhengyun You , Zijian Wang , Qiang Li

In supersymmetric extensions of the Standard Model, the lepton flavour violation (LFV) is closely related to the structure of slepton masses and mixing. Allowing for the most general flavour structure of the slepton sector, consistent with…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jan Kalinowski

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

We present a global analysis of lepton-flavor-specific operators in the Standard Model Effective Field Theory (SMEFT), combining data from collider and flavor physics experiments. We systematically explore various lepton-flavor scenarios,…

High Energy Physics - Phenomenology · Physics 2025-11-11 Cornelius Grunwald , Gudrun Hiller , Kevin Kröninger , Lara Nollen

We estimate the accuracy with which the coefficient of the lepton flavour-violating dimension-six operators can be measured at the proposed electron-proton collider. Cuts-based analysis is performed to compute the signal significance at the…

High Energy Physics - Phenomenology · Physics 2025-12-17 Hrishabh Bharadwaj , Sukanta Dutta

Lepton flavor violation (LFV), observed conclusively in neutrino oscillations, remains a pivotal area of investigation due to its absence in the Standard Model (SM). Beyond the Standard Model (BSM) physics explores charged lepton flavor…

High Energy Physics - Phenomenology · Physics 2024-10-29 Jia Liu , Muyuan Song , Haohao Zhang

Charged lepton flavor violation (CLFV) represents a transition between charged leptons of different generations that violates lepton flavor conservation, which is a clear signature of possible new physics beyond the standard model. By…

High Energy Physics - Phenomenology · Physics 2023-04-12 Jingshu Li , Wanyue Wang , Xunye Cai , Chuxue Yang , Meng Lu , Zhengyun You , Sitian Qian , Qiang Li

Charged lepton-flavor violation is a null-test frontier of the Standard Model and a direct probe of physics beyond it. We present a global effective field theory (EFT) analysis across FCC-ee, ILC, CLIC, HL-LHC, HE-LHC, and muon colliders at…

High Energy Physics - Phenomenology · Physics 2026-04-15 Nicolás Viaux M
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