Search for Lepton Flavor Violation in the Decayτ±→e±γ

B Aubert,D Piccolo,C A Chavez,S Saremi,G Rizzo,S H Robertson,T R Mcmahon,G Benelli,R Barate,A Perazzo,R Stroili,M Lu,H P Paar,R G Jacobsen,X Chen,M Wittgen,M Mandelkern,W T Meyer,S Chen,S Pacetti,F Galeazzi,F Bucci,R Kroeger,K Goetzen,J A Mckenna,J Ocariz,M T Allen,R Waldi,J Stelzer,F Couderc,H Kim,S Otto,C C Young,R N Cahn,M Ahmed,V Azzolini,S J Sekula,T J Orimoto,V Klose,A Roodman,D Bettoni,G Batignani,R W Kadel,M Morii,M H Schune,K Wang,G Rong,P K Behera,M R Monge,J Walsh,T Adye,M Weaver,H Nicholson,A Olivas,P Lund,W Menges,S Grancagnolo,D Boutigny,F R Wappler,J R Johnson,G Finocchiaro,R Bula,G Raven,C A Heusch,J G Smith,S Morganti,G De Nardo,Q Zeng,E Chen,A Palano,T M Hong,I M Peruzzi,C Roat,M Rotondo,H Li,E Di Marco,J M Izen,A Zghiche,M S Gill,A Snyder,B Dahmes,N Neri,J M Roney,B Spaan,K A Ulmer,J M Losecco,Y Groysman,A Lazzaro,B Mellado,D Aston,V B Koptchev,M Barrett,R Godang,X Giroux,C Patrignani,M Carpinelli,G Lynch,B C Shen,C L Edgar,G Kukartsev,D J Payne,E Charles,U Egede,L Roos,W R Innes,F Salvatore,R Ter-Antonyan,C J Flacco,M Dickopp,B Mayer,P E Kutter,M Cristinziani,G Graziani,M Bomben,S E Morgan,F X Yumiceva,A N Yushkov,W T Ford,C Dallapiccola,R L Flack,A Dvoretskii,S I Serednyakov,Yu G Kolomensky,F Ferrarotto,N Arnaud,J Marks,W H Toki,K Yi,D Côté,J Schubert,M A Saeed,C Sciacca,M Morganti,M Piccolo,I Narsky,R J Barlow,F Forti,M Perl,M Steinke,J Olsen,R Baldini-Ferroli,J C Williams,D Hufnagel,S Willocq,A Kreisel,F Le Diberder,Y Karyotakis,S K Swain,T Pulliam,A M Lutz,L Wilden,C Angelini,L Vitale,M Andreotti,B Stugu,R Claus,D Kovalskyi,R S Dubitzky,R Kowalewski,V Lombardo,D A Roberts,K Hamano,P Taras,F Bellini,J Strube,P Spradlin,A M Rahimi,T S Mattison,G Mancinelli,M Bruinsma,P Wang,K R Schubert,B G Fulsom,M L Kocian,N De Groot,E Robutti,J Reidy,T B Moore,D Dong,T J Harrison,S Ahmed,S Playfer,M G Green,D G Hitlin,J Panetta,V B Golubev,D Gamba,P R Burchat,D M Wright,G Wagner,T Held,R Cowan,B Viaud,C Buchanan,M A Mazzoni,B A Schumm,E A Kravchenko,G Della Ricca,C M Brown,I Ofte,S Curry,M Pierini,C L Brown,C Hast,J J Back,A Hauke,K S Chaisanguanthum,F Gallo,R Andreassen,R Capra,J Va’Vra,M S Alam,F Ferroni,V Sharma,C M Cormack,J M Thompson,A Soffer,M J Charles,B Lewandowski,A E Rubin,M T Naisbit,G Nesom,W Kozanecki,S Dasu,T C Petersen,M P Kelly,H Schröder,E O Olaiya,F Simonetto,P Elmer,J Dorfan,A P Onuchin,D Monorchio,V Halyo,Y Xie,A J Lankford,B Franek,D B Macfarlane,A M Boyarski,R Eckmann,I Eschrich,G Calderini,A V Gritsan,F Di Lodovico,L Teodorescu,V Tisserand,H R Band,S Prell,M Zito,E J Hill,S F Ganzhur,B N Ratcliff,R Messner,D Best,J R Gaillard,E Won,J W Gary,G B Mohanty,U Langenegger,G Blaylock,M G Wilson,K Suzuki,D C Williams,A E Blinov,J Zhang,T Hadig,A Samuel,W D Hulsbergen,J Malclès,O Igonkina,R Schwierz,J Wu,Y P Lau,P S Jackson,G Schott,A Höcker,D A Bowerman,W A Wenzel,U Nauenberg,F Anulli,M Pelizaeus,M R Convery,A Jawahery,F F Wilson,T Schalk,Q K Wong,M B Nikolich,R Aleksan,H B Crawley,A Gaidot,E I Rosenberg,D A Hopkins,S Schenk,C T Potter,V Poireau,H U Flaecher,T Hryn’Ova,H L Snoek,S Tosi,W S Lockman,M Morandin,G Piredda,P D Jackson,M Biasini,A Buzzo,P Tan,R Cenci,L M Mir,J W Berryhill,R Contri,E Gabathuler,D Judd,S Bettarini,J P Burke,C K Lae,R De Sangro,G Eigen,D J Summers,R Kass,M Lo Vetere,J Libby,T W Beck,D A Sanders,F Bianchi,M Gaspero,I J Forster,H K Hadavand,G S Abrams,G Simi,M Margoni,M T Ronan,R Calabrese,A J S Smith,A Petzold,M Pappagallo,A Pompili,L Bosisio,A Chen,J P Lees,A Calcaterra,R C Field,R Bartoldus,C M Hawkes,L Piemontese,M Spitznagel,P M Patel,A T Watson,M Davier,A J Bevan,W F Mader,P Grenier,M Saleem,C Cartaro,S Rodier,J Allison,F Fabozzi,F Polci,L T Kerth,M Benayoun,W O Ruddick,W Verkerke,R Prepost,E Torrence,S Luitz,W Bugg,D Strom,M Haire,W Gradl,G Cibinetto,S Rahatlou,K T Flood,G P Gopal,F Muheim,S Brunet,R Covarelli,N Berger,G W London,G Hamel De Monchenault,Z Yu,O L Buchmueller,G D Lafferty,A B Breon,Y Pan,E Feltresi,D Kirkby,P J Clark,A Lusiani,J Albert,S J Gowdy,S Ricciardi,S D Foulkes,F Cossutti,J E Sundermann,G P Dubois-Felsmann,R F Schwitters,C H Cheng,G Grosdidier,S B Zain,J Chauveau,C T Day,N B Sinev,R J Sobie,V Ziegler,C Bozzi,W Roethel,M Bondioli,S R Wagner,C Voena,W Bhimji,F Blanc,C Hearty,R Nogowski,R J Parry,D R Muller,C Voci,P Kyberd,S Emery,B Bhuyan,A Stocchi,K C Schofield,D J Bard,H Koch,R Faccini,T Allmendinger,D Su,S Ye,M Datta,N Danielson,D Del Re,T Piatenko,X Li,W N Cottingham,R Liu,H L Lynch,U Uwer,A Khan,E Paoloni,D J Lange,M Chao,P Kim,F C Porter,O Hamon,A J Edwards,M Pripstein,B A Petersen,S Plaszczynski,H Marsiske,J Schwiening,A Oyanguren,M Battaglia,H Bulten,R Frey,J Biesiada,V Eyges,M A Mazur,H Staengle,W Dunwoodie,N S Knecht,J Kroseberg,H Kagan,J C Chen,A Santroni,M D Sokoloff,A Satpathy,A Cunha,S Schrenk,G Cowan,M Posocco,J M Bauer,G Brandenburg,R K Mommsen,M Krishnamurthy,L Gladney,B Cheng,J F Hirschauer,C P O’Grady,R Sacco,H Briand,D N Brown,G Cavoto,A Seiden,Yu I Skovpen,G Sciolla,G Marchiori,M Verderi,F Safai Tehrani,N D Qi,M Fritsch,J P Coleman,L Li Gioi,P David,J L Ritchie,J R Fry,K A George,I Kitayama,D Bernard,S L Wu,K Peters,X Chai,D E Wagoner,U Mallik,M A Giorgi,V Eschenburg,C Gatto,E P Solodov,L Lanceri,J R Wilson,A K Yarritu,N A Roe,A M Eisner,N Chevalier,K E Ford,N Cavallo,F Taylor,A W Weidemann,L Del Buono,S Dittongo,L Zhang,A D Bukin,R Gamet,L Lista,G Wormser,O Long,M C Hodgkinson,K K Gan,C L Davis,V Lepeltier,G R Bonneaud,P J Oddone,M Legendre,K Honscheid,F Palombo,P Roudeau,B L Hartfiel,C Touramanis,P Paolucci,W J Wisniewski,J Cochran,G Vasseur,J Brose,M Rama,M C Simani,L Cremaldi,R K Yamamoto,H W Zhao,C Chen,A M Eichenbaum,E Luppi,J S Minamora,G Vasileiadis,R Kofler,C Campagnari,P F Harrison,M Negrini,T Brandt,T Glanzman,A Zallo,D Fortin,S Passaggio,S S Hertzbach,Q H Guo,M K Sullivan,A V Telnov,N Van Bakel,D P Stoker,A Salnikov ,M A Baak ,A J.r Weinstein ,F Martínez-Vidal ,M Pioppí ,J Button‐Shafer ,D Hutchcroft ,C Jessop ,J Nash ,Chunhua Lu ,Richard Wilson ,D Dujmić ,V Blinov ,E Eckhart ,Ch Thiebaux ,J Ernst ,Y Jiang ,A Hart ,Karsten Koeneke ,N Barlow ,J Boyd ,M.h Kelsey ,В П Дружинин ,B Meadows ,D.h Wright ,R.s Panvini ,J G Panduro Vazquez ,M John ,M Macrı́ ,J Dingfelder ,D D Altenburg ,Saijun Fan ,D.w.g.s Leith ,P Patterí ,P C Bloom ,S Spanier ,Ph Leruste ,Yongfeng Zhu ,S Banerjee ,Abe T ,Ch De La Vaissière ,T Vazquez Schroeder ,Ch Yèche ,A Rýd ,S Majewski ,T Latham ,T Çuhadar-Dönszelmann ,P Dauncey ,G Thérin ,J Hollar ,J E Brau ,V E Özcan ,X Lou ,M Purohit ,M T Graham ,A Dʼorazio ,J A Kadyk ,E Graugés ,R.h Schindler ,H Lacker ,A Mihályi ,V Lüth ,M Bóna ,A Mohapatra ,J Richman ,H A Neal

doi:10.1103/physrevlett.96.041801

Abstract

A search for the non-conservation of lepton flavor in the decay tau -> electron gamma has been performed with 2.07 x 10^8 e+e- -> tau+ tau- events collected by the BABAR detector at the PEP-II storage ring at a center-of-mass energy near 10.58 GeV. We find no evidence for a signal and set an upper limit on the branching ratio of BR(tau -> electron gamma) < 1.1 x 10^-7 at 90% confidence level.

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