Search for Lepton Flavor Violation in ϒ(3S)→e^{±}μ^{∓}.

Autor: Lees JP; Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France., Poireau V; Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France., Tisserand V; Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France., Grauges E; Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona, Spain., Palano A; INFN Sezione di Bari, I-70126 Bari, Italy., Eigen G; University of Bergen, Institute of Physics, N-5007 Bergen, Norway., Brown DN; Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA., Kolomensky YG; Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA., Fritsch M; Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany., Koch H; Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany., Schroeder T; Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany., Cheaib R; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., Hearty C; Institute of Particle Physics, Vancouver, British Columbia V6T 1Z1, Canada.; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., Mattison TS; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., McKenna JA; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., So RY; University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada., Blinov VE; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia.; Novosibirsk State Technical University, Novosibirsk 630092, Russia., Buzykaev AR; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia., Druzhinin VP; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Golubev VB; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Kozyrev EA; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Kravchenko EA; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Onuchin AP; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia.; Novosibirsk State Technical University, Novosibirsk 630092, Russia., Serednyakov SI; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Skovpen YI; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Solodov EP; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Todyshev KY; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia.; Novosibirsk State University, Novosibirsk 630090, Russia., Lankford AJ; University of California at Irvine, Irvine, California 92697, USA., Dey B; University of California at Riverside, Riverside, California 92521, USA., Gary JW; University of California at Riverside, Riverside, California 92521, USA., Long O; University of California at Riverside, Riverside, California 92521, USA., Eisner AM; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA., Lockman WS; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA., Panduro Vazquez W; University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA., Chao DS; California Institute of Technology, Pasadena, California 91125, USA., Cheng CH; California Institute of Technology, Pasadena, California 91125, USA., Echenard B; California Institute of Technology, Pasadena, California 91125, USA., Flood KT; California Institute of Technology, Pasadena, California 91125, USA., Hitlin DG; California Institute of Technology, Pasadena, California 91125, USA., Kim J; California Institute of Technology, Pasadena, California 91125, USA., Li Y; California Institute of Technology, Pasadena, California 91125, USA., Lin DX; California Institute of Technology, Pasadena, California 91125, USA., Middleton S; California Institute of Technology, Pasadena, California 91125, USA., Miyashita TS; California Institute of Technology, Pasadena, California 91125, USA., Ongmongkolkul P; California Institute of Technology, Pasadena, California 91125, USA., Oyang J; California Institute of Technology, Pasadena, California 91125, USA., Porter FC; California Institute of Technology, Pasadena, California 91125, USA., Röhrken M; California Institute of Technology, Pasadena, California 91125, USA., Huard Z; University of Cincinnati, Cincinnati, Ohio 45221, USA., Meadows BT; University of Cincinnati, Cincinnati, Ohio 45221, USA., Pushpawela BG; University of Cincinnati, Cincinnati, Ohio 45221, USA., Sokoloff MD; University of Cincinnati, Cincinnati, Ohio 45221, USA., Sun L; University of Cincinnati, Cincinnati, Ohio 45221, USA., Smith JG; University of Colorado, Boulder, Colorado 80309, USA., Wagner SR; University of Colorado, Boulder, Colorado 80309, USA., Bernard D; Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France., Verderi M; Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France., Bettoni D; INFN Sezione di Ferrara, I-44122 Ferrara, Italy., Bozzi C; INFN Sezione di Ferrara, I-44122 Ferrara, Italy., Calabrese R; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Cibinetto G; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Fioravanti E; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Garzia I; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Luppi E; INFN Sezione di Ferrara, I-44122 Ferrara, Italy.; Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, I-44122 Ferrara, Italy., Santoro V; INFN Sezione di Ferrara, I-44122 Ferrara, Italy., Calcaterra A; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., de Sangro R; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Finocchiaro G; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Martellotti S; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Patteri P; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Peruzzi IM; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Piccolo M; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Rotondo M; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Zallo A; INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy., Passaggio S; INFN Sezione di Genova, I-16146 Genova, Italy., Patrignani C; INFN Sezione di Genova, I-16146 Genova, Italy., Shuve BJ; Harvey Mudd College, Claremont, California 91711, USA., Lacker HM; Humboldt-Universität zu Berlin, Institut für Physik, D-12489 Berlin, Germany., Bhuyan B; Indian Institute of Technology Guwahati, Guwahati, Assam 781 039, India., Mallik U; University of Iowa, Iowa City, Iowa 52242, USA., Chen C; Iowa State University, Ames, Iowa 50011, USA., Cochran J; Iowa State University, Ames, Iowa 50011, USA., Prell S; Iowa State University, Ames, Iowa 50011, USA., Gritsan AV; Johns Hopkins University, Baltimore, Maryland 21218, USA., Arnaud N; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Davier M; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Le Diberder F; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Lutz AM; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Wormser G; Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France., Lange DJ; Lawrence Livermore National Laboratory, Livermore, California 94550, USA., Wright DM; Lawrence Livermore National Laboratory, Livermore, California 94550, USA., Coleman JP; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Gabathuler E; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Hutchcroft DE; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Payne DJ; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Touramanis C; University of Liverpool, Liverpool L69 7ZE, United Kingdom., Bevan AJ; Queen Mary, University of London, London E1 4NS, United Kingdom., Di Lodovico F; Queen Mary, University of London, London E1 4NS, United Kingdom., Sacco R; Queen Mary, University of London, London E1 4NS, United Kingdom., Cowan G; University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom., Banerjee S; University of Louisville, Louisville, Kentucky 40292, USA., Brown DN; University of Louisville, Louisville, Kentucky 40292, USA., Davis CL; University of Louisville, Louisville, Kentucky 40292, USA., Denig AG; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Gradl W; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Griessinger K; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Hafner A; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Schubert KR; Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany., Barlow RJ; University of Manchester, Manchester M13 9PL, United Kingdom., Lafferty GD; University of Manchester, Manchester M13 9PL, United Kingdom., Cenci R; University of Maryland, College Park, Maryland 20742, USA., Jawahery A; University of Maryland, College Park, Maryland 20742, USA., Roberts DA; University of Maryland, College Park, Maryland 20742, USA., Cowan R; Massachusetts Institute of Technology, Laboratory for Nuclear Science, Cambridge, Massachusetts 02139, USA., Robertson SH; Institute of Particle Physics, Montréal, Québec H3A 2T8, Canada.; McGill University, Montréal, Québec H3A 2T8, Canada., Seddon RM; Institute of Particle Physics, Montréal, Québec H3A 2T8, Canada., Neri N; INFN Sezione di Milano, I-20133 Milano, Italy., Palombo F; INFN Sezione di Milano, I-20133 Milano, Italy.; Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy., Cremaldi L; University of Mississippi, University, Mississippi 38677, USA., Godang R; University of Mississippi, University, Mississippi 38677, USA., Summers DJ; University of Mississippi, University, Mississippi 38677, USA., Taras P; Université de Montréal, Physique des Particules, Montréal, Québec H3C 3J7, Canada., De Nardo G; INFN Sezione di Napoli and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy., Sciacca C; INFN Sezione di Napoli and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy., Raven G; NIKHEF, National Institute for Nuclear Physics and High Energy Physics, NL-1009 DB Amsterdam, Netherlands., Jessop CP; University of Notre Dame, Notre Dame, Indiana 46556, USA., LoSecco JM; University of Notre Dame, Notre Dame, Indiana 46556, USA., Honscheid K; Ohio State University, Columbus, Ohio 43210, USA., Kass R; Ohio State University, Columbus, Ohio 43210, USA., Gaz A; INFN Sezione di Padova, I-35131 Padova, Italy., Margoni M; INFN Sezione di Padova, I-35131 Padova, Italy.; Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy., Posocco M; INFN Sezione di Padova, I-35131 Padova, Italy., Simi G; INFN Sezione di Padova, I-35131 Padova, Italy.; Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy., Simonetto F; INFN Sezione di Padova, I-35131 Padova, Italy.; Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy., Stroili R; INFN Sezione di Padova, I-35131 Padova, Italy.; Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy., Akar S; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Ben-Haim E; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Bomben M; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Bonneaud GR; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Calderini G; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Chauveau J; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Marchiori G; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Ocariz J; Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France., Biasini M; Dipartimento di Fisica, Università di Perugia, I-06123 Perugia, Italy., Manoni E; INFN Sezione di Perugia, I-06123 Perugia, Italy., Rossi A; INFN Sezione di Perugia, I-06123 Perugia, Italy., Batignani G; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Bettarini S; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Carpinelli M; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Casarosa G; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Chrzaszcz M; INFN Sezione di Pisa, I-56127 Pisa, Italy., Forti F; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Giorgi MA; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Lusiani A; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Scuola Normale Superiore di Pisa, I-56127 Pisa, Italy., Oberhof B; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Paoloni E; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Rama M; INFN Sezione di Pisa, I-56127 Pisa, Italy., Rizzo G; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Walsh JJ; INFN Sezione di Pisa, I-56127 Pisa, Italy., Zani L; INFN Sezione di Pisa, I-56127 Pisa, Italy.; Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy., Smith AJS; Princeton University, Princeton, New Jersey 08544, USA., Anulli F; INFN Sezione di Roma, I-00185 Roma, Italy., Faccini R; INFN Sezione di Roma, I-00185 Roma, Italy.; Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy., Ferrarotto F; INFN Sezione di Roma, I-00185 Roma, Italy., Ferroni F; INFN Sezione di Roma, I-00185 Roma, Italy., Pilloni A; INFN Sezione di Roma, I-00185 Roma, Italy.; Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy., Piredda G; INFN Sezione di Roma, I-00185 Roma, Italy., Bünger C; Universität Rostock, D-18051 Rostock, Germany., Dittrich S; Universität Rostock, D-18051 Rostock, Germany., Grünberg O; Universität Rostock, D-18051 Rostock, Germany., Heß M; Universität Rostock, D-18051 Rostock, Germany., Leddig T; Universität Rostock, D-18051 Rostock, Germany., Voß C; Universität Rostock, D-18051 Rostock, Germany., Waldi R; Universität Rostock, D-18051 Rostock, Germany., Adye T; Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom., Wilson FF; Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom., Emery S; IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France., Vasseur G; IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France., Aston D; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Cartaro C; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Convery MR; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Dorfan J; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Dunwoodie W; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Ebert M; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Field RC; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Fulsom BG; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Graham MT; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Hast C; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Innes WR; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Kim P; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Leith DWGS; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Luitz S; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., MacFarlane DB; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Muller DR; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Neal H; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Ratcliff BN; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Roodman A; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Sullivan MK; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Va'vra J; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Wisniewski WJ; SLAC National Accelerator Laboratory, Stanford, California 94309, USA., Purohit MV; University of South Carolina, Columbia, South Carolina 29208, USA., Wilson JR; University of South Carolina, Columbia, South Carolina 29208, USA., Randle-Conde A; Southern Methodist University, Dallas, Texas 75275, USA., Sekula SJ; Southern Methodist University, Dallas, Texas 75275, USA., Ahmed H; St. Francis Xavier University, Antigonish, Nova Scotia B2G 2W5, Canada., Bellis M; Stanford University, Stanford, California 94305, USA., Burchat PR; Stanford University, Stanford, California 94305, USA., Puccio EMT; Stanford University, Stanford, California 94305, USA., Alam MS; State University of New York, Albany, New York 12222, USA., Ernst JA; State University of New York, Albany, New York 12222, USA., Gorodeisky R; Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel., Guttman N; Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel., Peimer DR; Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel., Soffer A; Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel., Spanier SM; University of Tennessee, Knoxville, Tennessee 37996, USA., Ritchie JL; University of Texas at Austin, Austin, Texas 78712, USA., Schwitters RF; University of Texas at Austin, Austin, Texas 78712, USA., Izen JM; University of Texas at Dallas, Richardson, Texas 75083, USA., Lou XC; University of Texas at Dallas, Richardson, Texas 75083, USA., Bianchi F; INFN Sezione di Torino, I-10125 Torino, Italy.; Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy., De Mori F; INFN Sezione di Torino, I-10125 Torino, Italy.; Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy., Filippi A; INFN Sezione di Torino, I-10125 Torino, Italy., Gamba D; INFN Sezione di Torino, I-10125 Torino, Italy.; Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy., Lanceri L; INFN Sezione di Trieste and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy., Vitale L; INFN Sezione di Trieste and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy., Martinez-Vidal F; IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain., Oyanguren A; IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain., Albert J; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Beaulieu A; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Bernlochner FU; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., King GJ; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Kowalewski R; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Lueck T; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Nugent IM; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Roney JM; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Sobie RJ; Institute of Particle Physics, Victoria, British Columbia V8W 3P6, Canada.; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Tasneem N; University of Victoria, Victoria, British Columbia V8W 3P6, Canada., Gershon TJ; Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom., Harrison PF; Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom., Latham TE; Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom., Prepost R; University of Wisconsin, Madison, Wisconsin 53706, USA., Wu SL; University of Wisconsin, Madison, Wisconsin 53706, USA.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2022 Mar 04; Vol. 128 (9), pp. 091804.
DOI: 10.1103/PhysRevLett.128.091804
Abstrakt: We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a b quark and b antiquark bound state. We look for the LFV decay ϒ(3S)→e^{±}μ^{∓} in a sample of 118 million ϒ(3S) mesons from 27  fb^{-1} of data collected with the BABAR detector at the SLAC PEP-II e^{+}e^{-} collider operating with a 10.36 GeV center-of-mass energy. No evidence for a signal is found, and we set a limit on the branching fraction B[ϒ(3S)→e^{±}μ^{∓}]<3.6×10^{-7} at 90% C. L. This result can be interpreted as a limit Λ_{NP}/g_{NP}^{2}>80  TeV on the energy scale Λ_{NP} divided by the coupling-squared g_{NP}^{2} of relevant new physics (NP).
Databáze: MEDLINE