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We review how the muon anomalous magnetic moment ($g-2$) and the quest for lepton flavor violation are intimately correlated. Indeed the decay $\mu \to e \gamma$ is induced by the same amplitude for different choices of in- and outgoing…

High Energy Physics - Phenomenology · Physics 2017-12-08 Manfred Lindner , Moritz Platscher , Farinaldo S. Queiroz

We implement a systematic effective field theory approach to the benchmark process $\mu\to e \gamma$, performing automated one-loop computations including dimension 6 operators and studying their anomalous dimensions. We obtain limits on…

High Energy Physics - Phenomenology · Physics 2014-10-09 Giovanni Marco Pruna , Adrian Signer

We present the first results from the MEG experiment for the search of the Lepton Flavour Violating decay $\mu^+ \to e^+ \gamma$ . LFV decays are forbidden in the SM and highly suppressed in any minimal SM extension with tiny neutrino…

High Energy Physics - Experiment · Physics 2019-08-13 Elisabetta Baracchini

The search for the Lepton Flavor Violating decay $\mu \to e \gamma$ exploits the most intense continuous muon beams, which can currently deliver $\sim 10^8$ muons per second. In the next decade, accelerator upgrades are expected in various…

High Energy Physics - Experiment · Physics 2020-04-15 Francesco Renga , Gianluca Cavoto , Angela Papa , Emanuele Ripiccini , Cecilia Voena

The new round of experiments, MEG II, COMET/Mu2e, and Mu3e, would soon start to push the $\mu \to e\gamma$, $\mu N \to eN$ conversion, and $\mu \to 3e$ frontier, while Belle II would probe $\tau \to \mu\gamma$ and $\tau \to 3\mu$. In the…

High Energy Physics - Phenomenology · Physics 2021-01-04 Wei-Shu Hou , Girish Kumar

An observation of Charged Lepton Flavor Violation (CLFV) would be unambiguous evidence for physics beyond the Standard Model. The Mu2e and COMET experiments, under construction, are designed to push the sensitivity to CLFV in the mu to e…

High Energy Physics - Experiment · Physics 2022-03-17 K. Byrum , S. Corrodi , Y. Oksuzian , P. Winter , L. Xia , A. W. J. Edmonds , J. P. Miller , J. Mott , W. J. Marciano , R. Szafron , R. Bonventre , D. N. Brown , Yu. G. Kolomensky , O. Ning , V. Singh , E. Prebys , L. Borrel , B. Echenard , D. G. Hitlin , C. Hu , D. X. Lin , S. Middleton , F. C. Porter , L. Zhang , R. -Y. Zhu , D. Ambrose , K. Badgley , R. H. Bernstein , S. Boi , B. C. K. Casey , R. Culbertson , A. Gaponenko , H. D. Glass , D. Glenzinski , L. Goodenough , A. Hocker , M. Kargiantoulakis , V. Kashikhin , B. Kiburg , R. K. Kutschke , P. A. Murat , D. Neuffer , V. S. Pronskikh , D. Pushka , G. Rakness , T. Strauss , M. Yucel , C. Bloise , E. Diociaiuti , S. Giovannella , F. Happacher , S. Miscetti , I. Sarra , M. Martini , A. Ferrari , S. E. Müller , R. Rachamin , E. Barlas-Yucel , A. Artikov , N. Atanov , Yu. I. Davydov , V. Glagolev , I. I. Vasilyev , D. N. Brown , Y. Uesaka , S. P. Denisov , V. Evdokimov , A. V. Kozelov , A. V. Popov , I. A. Vasilyev , G. Tassielli , T. Teubner , R. T. Chislett , G. G. Hesketh , M. Lancaster , M. Campbell , K. Ciampa , K. Heller , B. Messerly , M. A. C. Cummings , L. Calibbi , G. C. Blazey , M. J. Syphers , V. Zutshi , C. Kampa , M. MacKenzie , S. Di Falco , S. Donati , A. Gioiosa , V. Giusti , L. Morescalchi , D. Pasciuto , E. Pedreschi , F. Spinella , M. T. Hedges , M. Jones , Z. Y. You , A. M. Zanetti , E. V. Valetov , E. C. Dukes , R. Ehrlich , R. C. Group , J. Heeck , P. Q. Hung , S. M. Demers , G. Pezzullo , K. R. Lynch , J. L. Popp

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

In the context of general Minimal Supersymmetric Standard Model (MSSM), new sources for Lepton Flavor Violation (LFV) as well as CP-violation appear. We show that in the presence of LFV sources, the electric dipole moment of the electron…

High Energy Physics - Phenomenology · Physics 2008-10-20 Yaser Ayazi , Yasaman Farzan

We study nuclear mu-e conversion in the general framework of an effective Lagrangian approach without referring to any specific realization of the physics beyond the standard model (SM) responsible for lepton flavor violation (LFV). We…

High Energy Physics - Phenomenology · Physics 2007-05-23 Amand Faessler , Th. Gutsche , Sergey Kovalenko , V. E. Lyubovitskij , Ivan Schmidt , F. Simkovic

Charged lepton flavor violation (cLFV) processes, potentially important for various Beyond the Standard Model Physics scenarios are analyzed in the Standard Model Effective Field Theory (SMEFT) framework. We consider the most relevant 2…

High Energy Physics - Phenomenology · Physics 2024-07-18 Md Isha Ali , Utpal Chattopadhyay , N Rajeev , Joydeep Roy

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

The Mu2e experiment will search for a Standard Model violating rate of neutrinoless conversion of a muon into an electron in the presence of an aluminum nucleus. Observation of this charged lepton flavor violating process would be an…

High Energy Physics - Experiment · Physics 2022-10-28 Michael Thomas Hedges

We show the outstanding potential of the High-Luminosity LHC (HL-LHC) to discover charged lepton flavor violation (cLFV) via the ultra-peripheral process $\gamma\gamma \to e^\pm\mu^\mp$. Using a gauge-invariant Effective Field Theory (EFT)…

High Energy Physics - Phenomenology · Physics 2025-11-20 M. A. Arroyo-Ureña , O. Félix-Beltrán , J. Hernández-Sánchez , C. G. Honorato , S. Rosado-Navarro

In this paper we review our main results for Lepton Flavour Violating (LFV) semileptonic tau decays and muon-electron conversion in nuclei within the context of two Constrained SUSY-Seesaw Models, the CMSSM and the NUHM. The relevant…

High Energy Physics - Phenomenology · Physics 2010-11-11 E. Arganda , M. Herrero , J. Portoles , A. Rodriguez-Sanchez , A. Teixeira

The lepton flavour violating signals $e^{+}e^{-}\to \ell^{+}e^{-}$ and $e^{-}e^{-}\to \ell^{-}e^- (\ell=\mu,\tau)$ are studied in the context of low energy R-parity conserving supersymmetry at center of mass energies of interest for the…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. Cannoni , St. Kolb , O. Panella

The coming flavour precision era will allow to uncover various patterns of flavour violation in different New Physics scenarios. We discuss different classes of them. A simple extension of the Standard Model that generally introduces new…

High Energy Physics - Phenomenology · Physics 2013-05-22 Jennifer Girrbach

We present comprehensive global fits of the SMEFT under the $\textit{minimal}$ minimal flavour violation (MFV) hypothesis, i.e. assuming that only the flavour-symmetric and CP-invariant operators are relevant at the high scale. The…

High Energy Physics - Phenomenology · Physics 2023-12-07 Riccardo Bartocci , Anke Biekötter , Tobias Hurth

I report on the research status and the perspectives of the Lepton Flavor Violating decays {\mu}{\to}e{\gamma} and {\mu}{\to}eee. In particular, I will concentrate on the {\mu}{\to}e{\gamma} decay and the preliminary results obtained from…

High Energy Physics - Experiment · Physics 2019-08-13 M. De Gerone

The search for lepton-flavor-violation process e^+e^-\to e\mu in the energy region \sqrt{s}=984 - 1060 MeV with SND detector at VEPP-2M e^+e^- collider is reported. The model independent 90% CL upper limits on the e^+e^-\to e\mu cross…

Charged Lepton Flavor Violation (cLFV) processes like $ \mu \rightarrow e \gamma $ are rare decay processes, that are another signature of physics beyond Standard Model (BSM). These processes have been studied in various models, that could…

High Energy Physics - Phenomenology · Physics 2015-12-03 Kalpana Bora , Gayatri Ghosh