Measurement of theB0−B¯0Oscillation Frequency with Inclusive Dilepton Events

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Patel,A V Telnov,M Morganti,P D Dauncey,C Touramanis,M Piccolo,J Fullwood,W T Ford,P Strother,S Bettarini,R S Dubitzky,A M Boyarski,R W Kadel,U Mallik,S H Robertson,V Eschenburg,V N Ivanchenko,A P Onuchin,S Passaggio,C Gatto,B N Ratcliff,A Palano,G D Lafferty,N R Barlow,R Bartoldus,G P Dubois-Felsmann,G Finocchiaro,S Willocq,J C Chen,W S Lockman,T Schietinger,C L Davis,J M Roney,G Grosdidier,G Bellodi,G Wormser,E Paoloni,T Glanzman,D Del Re,C Voena,B Lewandowski,B Mayer,D Thiessen,S Emery,A J Lankford,P Taras,S S Hertzbach,H W Shorthouse,A Lusiani,A Tumanov,C A Heusch,G Cavoto,H B Crawley,W Dunwoodie,S L Levy,S Devmal,C Bozzi,F Simonetto,D P Stoker,J G Smith,C Patrignani,H M Lacker,H L Lynch,A D Bukin,V Lillard,D Dong,M Pripstein,J Roy,M Lo Vetere,N K Watson,F Safai Tehrani,K Van Bibber,Q H Guo,R E Schmitz,J C Williams,L Wilden,G Rong,K Goetzen,J Chauveau,F Ferroni,A Dvoretskii,C Hearty,R G Jacobsen,G W London,A T Watson,A Buzzo,M A Mazzoni,J M Bauer,D J Knowles,M Krishnamurthy,U Egede,C Dallapiccola,A M Lutz,S Dittongo,C Roat,T Pulliam,F C Porter,J T Boyd,T B Moore,H Marsiske,F Anulli,G Vasseur,M Mugge,R S Panvini,A Höcker,M Verderi,M S Gill,L Gladney,D Judd,M G Wilson,S Ricciardi,M George,R Kowalewski,C C Young,N A Roe,S Yang,M Benayoun,D Aston,J Blouw,R Aleksan,F Ferrarotto,W N Cottingham,M R Convery,R De Sangro,B Franek,G Eigen,K Arisaka,H Staengle,R Kroeger,D J Summers,A Santroni,D Lavin,S J Sekula,J Schwiening,P R Burchat,W R Innes,G Vaitsas,C M Hawkes,V Lepeltier,C Cartaro,L Lanceri,A Jawahery,Y Groysman,A Hicheur,R C Penny,I Eschrich,M T Ronan,V Tisserand,L Del Buono,S F Ganzhur,C Leclerc,M Carpinelli,T Schalk,D Kirkby,S Playfer,M Zito,F Di Lodovico,G De Nardo,F Colecchia,F Sandrelli,D Boutigny,J Brose,T S Mattison,G Mancinelli,D G Hitlin,R Contri,M Serra,G Raven,G Calderini,D Gamba,E Torassa,P Sanders,G Della Ricca,K Paick,J P Lees,V Miftakov,R Hamilton,L T Kerth,F Dal Corso,J Dorfan,A Romosan,A M Eisner,R Stroili,Y S Zhu,T Deppermann,W C Van Hoek,H Nicholson,A Dorigo,R Baldini-Ferroli,M Weaver,W T Meyer,E Maly,G Vuagnin,J Albert,M Iwasaki,G Michelon,R Gamet,G Vasileiadis,C Voci,S Jayatilleke,T J Harrison,E Campagna,S J Gowdy,W Kozanecki,O Hamon,H R Band,I M Peruzzi,S George,A Calcaterra,J R Fry,F Muheim,W H Toki,M H Kelsey,J L Harton,S Morganti,A N Yushkov,A Kurup,M Mandelkern,M Chao,D A Roberts,M Morii,E I Rosenberg,A Snyder,S Ferrag,S Luitz,J Oyang,J H Von Wimmersperg-Toeller,J M Losecco,F Forti,E A Kravchenko,G Lynch,D Falciai,P Rankin,K R Schubert,G Piredda,G R Bonneaud,C Hast,M Rama,A W Weidemann,A A Salnikov,A Seiden,S L Wu,C H Cheng,A Roodman,W Bhimji,R Frey,B Foster,G Rizzo,Y Karyotakis,A R Buzykaev,G Triggiani,B Serfass,A A Korol,P J Clark,T Hryn’ova ,J M Izen,D M Wright,J Nash ,M A Giorgi,C Lü ,J Va’vra ,M Kay,P A Hart,P Robbe,J R Johnson,E.d Frank ,R Liu,Ph Leruste ,J.f Kral ,S Menke,S Spanier ,J Richman ,Patricia Mcgrath ,D Bernard,J Button‐Shafer ,И Адам ,V I Telnov,T Barillari,S Xella ,P David,M.g Pia ,J Stark,D N Brown,J Cohen-Tanugi,R Waldi,C Campagnari,J Schieck ,Ch De La Vaissière ,S Mcmahon,C Buchanan,F Fabozzi,V Sharma,G Cowan,B A Schumm,D.p Coupal ,I Scott ,Eichenbaum Am ,C K Mackay ,D C Williams,V Brigljević ,P F Giraud ,M Macrı́ ,Y Xie,G Hamel De Monchenault ,S Bagnasco,S R Wagner,D Best,T L Geld,X C Lou,M Morandin,A Soha,F Martínez-Vidal ,A J S Smith,S F Schaffner,Н Кузнецова ,V Re,P Fischer ,R Bionta ,J Zhang,S Rahatlou ,J Cochran,Yu I Skovpen,M Langer,M Steinke,S Jolly,A Farbin,J Lämsä ,R Y Zhu,R Henderson,P F Harrison,P C Bloom ,N Cavallo,J Walsh,A Forti ,A K Mckemey,R.j.l Potter ,Ch Thiebaux ,P Elmer,M Bóna ,J Allison,P Bright-Thomas ,Kazuo Abe ,S T’jampens ,W Verkerke,A Pompili,P Paolucci,E Graugés ,G Simi,J Panetta,J.y Nief ,V Blinov ,M R Monge,F Pastore ,P F Manfredi,F Taylor,R Kofler,M L Aspinwall,V Shelkov ,E Robutti,M Margoni,A J.r Weinstein ,J Olsen,A J Bevan,L Roos,P Kim,D Strom,P.j Oddone ,W Bugg,C Jessop ,N.j.w Gunawardane ,J H Weatherall,M Dima ,U Langenegger,P Wang,R.j Sloane ,G Sciolla,P D Jackson,S Plaszczynski,Hirohisa Tanaka ,H Koch,R Müller-Pfefferkorn,В Б Голубев ,A V Gritsan,D Smith,H O Cohn ,N Berger,C Angelini,A Ryd,J Reidy,O Long,R Bernet,G P Chen,V E Özcan ,L Cremaldi,T.m.b Kordich ,T R Mcmahon,S Chun,T Brandt,E W Varnes,S W O’neale ,B Brau,M Kocian ,R C Field,D.a Bukin ,J.m Gaillard ,J.r.g Alsmiller ,M Grothe,M.e Huffer ,T I Meyer,H Hu,W A Wenzel,D Piccolo,A Khan,M Kunze,J E Brau ,T Adye,S Tosi,C Sciacca,H Singh,D R Müller ,Z Yu,J Tinslay,T Haas,L Lista,A Soffer,N Neri,Ch Yèche ,P Patterí ,B Dahmes,J E Swain,D.e Azzopardi ,J A Kadyk ,M E Levi,M Perl,F X Yumiceva,P.b Vidal ,S Dasu,S Metzler,M Purohit ,Helen R Quinn ,Y Pan,V Lüth ,D H Wright,B Meadows ,C P O’grady ,F Jackson,A R Clark,S Laplace,S Trincaz-Duvoid,W Walkowiak,Yu G Kolomensky,K Peters,H A Neal

doi:10.1103/physrevlett.88.221803

Abstract

The B0-B-0 oscillation frequency has been measured with a sample of 23 x 10(6) BB- pairs collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. In this sample, we select events in which both B mesons decay semileptonically and use the charge of the leptons to identify the flavor of each B meson. A simultaneous fit to the decay time difference distributions for opposite- and same-sign dilepton events gives deltamd = 0.493+/-0.012(stat)+/-0.009(syst) ps-1.

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