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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…

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

The Standard Model (SM) predictions for the lepton flavor-violating (LFV) processes like mu->eg are well far from any realistic experimental resolution, thus, the appearance of m->eg at the running MEG experiment would unambiguously point…

High Energy Physics - Phenomenology · Physics 2009-12-15 J. Hisano , M. Nagai , P. Paradisi , Y. Shimizu

An automatic target monitoring method based on photographs taken by a CMOS photo-camera has been developed for the MEG II detector. The technique could be adapted for other fixed-target experiments requiring good knowledge of their target…

Instrumentation and Detectors · Physics 2021-04-14 G. Cavoto , G. Chiarello , M. Hildebrandt , A. Hofer , K. Ieki , M. Meucci , S. Milana , V. Pettinacci , F. Renga , C. Voena

The search for lepton flavour violation in charged lepton decays is highly sensitive to physics beyond the Standard Model. Among the possible processes, $\mu$-decays are considered to have the largest discovery potential in most of the…

High Energy Physics - Experiment · Physics 2019-06-26 Luca Galli

Searches for lepton flavor violation (LFV) stand at the forefront of experimental particle physics research, offering a sensitive probe to many scenarios of physics beyond the Standard Model. The high proton-proton collision energy and…

High Energy Physics - Experiment · Physics 2024-03-20 Jian Wang

The Mu2e experiment at Fermilab will search for the charged lepton flavor violating process of neutrino-less $\mu \to e$ coherent conversion in the field of an aluminum nucleus. About $7 \cdot 10^{17}$ muons, provided by a dedicated muon…

High Energy Physics - Experiment · Physics 2017-05-22 G. Pezzullo

The Mu2e experiment at Fermilab looks for Charged Lepton Flavor Violation (CLFV) improving by 4 orders of magnitude the current experimental sensitivity for the muon to electron conversion in a muonic atom. A positive signal could not be…

The Mu2e experiment at Fermilab will search for charged lepton flavor violation via the coherent conversion process mu- N --> e- N with a sensitivity approximately four orders of magnitude better than the current world's best limits for…

Instrumentation and Detectors · Physics 2015-03-18 L. Bartoszek , E. Barnes , J. P. Miller , J. Mott , A. Palladino , J. Quirk , B. L. Roberts , J. Crnkovic , V. Polychronakos , V. Tishchenko , P. Yamin , C. -h. Cheng , B. Echenard , K. Flood , D. G. Hitlin , J. H. Kim , T. S. Miyashita , F. C. Porter , M. Röhrken , J. Trevor , R. -Y. Zhu , E. Heckmaier , T. I. Kang , G. Lim , W. Molzon , Z. You , A. M. Artikov , J. A. Budagov , Yu. I. Davydov , V. V. Glagolev , A. V. Simonenko , Z. U. Usubov , S. H. Oh , C. Wang , G. Ambrosio , N. Andreev , D. Arnold , M. Ball , R. H. Bernstein , A. Bianchi , K. Biery , R. Bossert , M. Bowden , J. Brandt , G. Brown , H. Brown , M. Buehler , M. Campbell , S. Cheban , M. Chen , J. Coghill , R. Coleman , C. Crowley , A. Deshpande , G. Deuerling , J. Dey , N. Dhanaraj , M. Dinnon , S. Dixon , B. Drendel , N. Eddy , R. Evans , D. Evbota , J. Fagan , S. Feher , B. Fellenz , H. Friedsam , G. Gallo , A. Gaponenko , M. Gardner , S. Gaugel , K. Genser , G. Ginther , H. Glass , D. Glenzinski , D. Hahn , S. Hansen , B. Hartsell , S. Hays , J. A. Hocker , E. Huedem , D. Huffman , A. Ibrahim , C. Johnstone , V. Kashikhin , V. V. Kashikhin , P. Kasper , T. Kiper , D. Knapp , K. Knoepfel , L. Kokoska , M. Kozlovsky , G. Krafczyk , M. Kramp , S. Krave , K. Krempetz , R. K. Kutschke , R. Kwarciany , T. Lackowski , M. J. Lamm , M. Larwill , F. Leavell , D. Leeb , A. Leveling , D. Lincoln , V. Logashenko , V. Lombardo , M. L. Lopes , A. Makulski , A. Martinez , D. McArthur , F. McConologue , L. Michelotti , N. Mokhov , J. Morgan , A. Mukherjee , P. Murat , V. Nagaslaev , D. V. Neuffer , T. Nicol , J. Niehoff , J. Nogiec , M. Olson , D. Orris , R. Ostojic , T. Page , C. Park , T. Peterson , R. Pilipenko , A. Pla-Dalmau , V. Poloubotko , M. Popovic , E. Prebys , P. Prieto , V. Pronskikh , D. Pushka , R. Rabehl , R. E. Ray , R. Rechenmacher , R. Rivera , W. Robotham , P. Rubinov , V. L. Rusu , V. Scarpine , W. Schappert , D. Schoo , A. Stefanik , D. Still , Z. Tang , N. Tanovic , M. Tartaglia , G. Tassotto , D. Tinsley , R. S. Tschirhart , G. Vogel , R. Wagner , R. Wands , M. Wang , S. Werkema , H. B. White , J. Whitmore , R. Wielgos , R. Woods , C. Worel , R. Zifko , P. Ciambrone , F. Colao , M. Cordelli , G. Corradi , E. Dane , S. Giovannella , F. Happacher , A. Luca , S. Miscetti , B. Ponzio , G. Pileggi , A. Saputi , I. Sarra , R. S. Soleti , V. Stomaci , M. Martini , P. Fabbricatore , S. Farinon , R. Musenich , D. Alexander , A. Daniel , A. Empl , E. V. Hungerford , K. Lau , G. D. Gollin , C. Huang , D. Roderick , B. Trundy , D. Na. Brown , D. Ding , Yu. G. Kolomensky , M. J. Lee , M. Cascella , F. Grancagnolo , F. Ignatov , A. Innocente , A. L'Erario , A. Miccoli , A. Maffezzoli , P. Mazzotta , G. Onorato , G. M. Piacentino , S. Rella , F. Rossetti , M. Spedicato , G. Tassielli , A. Taurino , G. Zavarise , R. Hooper , D. No. Brown , R. Djilkibaev , V. Matushko , C. Ankenbrandt , S. Boi , A. Dychkant , D. Hedin , Z. Hodge , V. Khalatian , R. Majewski , L. Martin , U. Okafor , N. Pohlman , R. S. Riddel , A. Shellito , A. L. de Gouvea , F. Cervelli , R. Carosi , S. Di Falco , S. Donati , T. Lomtadze , G. Pezzullo , L. Ristori , F. Spinella , M. Jones , M. D. Corcoran , J. Orduna , D. Rivera , R. Bennett , O. Caretta , T. Davenne , C. Densham , P. Loveridge , J. Odell , R. Bomgardner , E. C. Dukes , R. Ehrlich , M. Frank , S. Goadhouse , R. Group , E. Ho , H. Ma , Y. Oksuzian , J. Purvis , Y. Wu , D. W. Hertzog , P. Kammel , K. R. Lynch , J. L. Popp

We propose an experiment (Mu3e) to search for the lepton flavour violating decay mu+ -> e+e-e+. We aim for an ultimate sensitivity of one in 10^16 mu-decays, four orders of magnitude better than previous searches. This sensitivity is made…

Lepton Flavor Violating (LFV) processes are clear signals of physics beyond the Standard Model. We investigate the possibility of measuring this kind of processes at present and foreseeable future muon-electron colliders, taking into…

High Energy Physics - Phenomenology · Physics 2020-12-15 Fabio Bossi , Paolo Ciafaloni

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

The upcoming Mu3e experiment aims to search for the lepton flavour violating decay $\mu^+ \to e^+ e^- e^+$ with an unprecedented final sensitivity of one signal decay in $10^{16}$ observed muon decays by making use of an innovative…

High Energy Physics - Experiment · Physics 2018-12-04 Ann-Kathrin Perrevoort

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

We search for lepton flavour violating events (e mu, e tau and mu tau) that could be directly produced in e+e- annihilations, using the full available data sample collected with the OPAL detector at centre-of-mass energies between 189 GeV…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL collaboration , G. Abbiendi

The Mu2e experiment at Fermilab will search for the charged lepton flavor violating process of neutrino-less $\mu \to e$ coherent conversion in the field of an aluminum nucleus. Mu2e will reach a single event sensitivity of about $2.5\cdot…

Considering the constraints from the experimental data on $\mu\rightarrow e\gamma$, $\mu\rightarrow3e$, $\mu-e$ conversion etc., we analyze the Lepton Flavor Violating decays $\phi(J/\Psi,\Upsilon(1S)) \rightarrow e^+\mu^-(\mu^+\tau^-)$ in…

High Energy Physics - Phenomenology · Physics 2015-06-11 Ke-Sheng Sun , Tai-Fu Feng , Tie-Jun Gao , Shu-Min Zhao

We use the BNL E821 measurement of g - 2, the anomalous magnetic moment of the muon, to normalize, within a supersymmetric GUT framework, constrained MSSM (CMSSM) predictions for processes that violate charged-lepton flavour conservation,…

High Energy Physics - Phenomenology · Physics 2009-09-11 D. F. Carvalho , John Ellis , M. E. Gomez , S. Lola

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