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

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Forti,K Goetzen,R E Schmitz,A A Salnikov,V Miftakov,E Treadwell,A Calcaterra,I Eschrich,D Del Re,J A Mckenna,P R Burchat,J L Harton,R S Panvini,F Colecchia,Y Karyotakis,S Christ,N Savvas,V Speziali,E Lamanna,M Morganti,A Kurup,D P Stoker,A Olivas,N I Geddes,R De Sangro,V Tisserand,R Faccini,G Wormser,S Petrak,S L Wu,F F Wilson,M Haire,G Vuagnin,R Stroili,W Bhimji,M T Ronan,D Kirkby,B Stugu,E Gabathuler,K Van Bibber,Y S Zhu,M Rama,L Wilden,P Sanders,U Nauenberg,M Posocco,R Contri,J C Chen,A Lu,W T Meyer,H Nicholson,T S Mattison,J Roy,N K Watson,L T Kerth,K T Flood,K R Schubert,F Safai Tehrani,M Chao,R Kowalewski,P Taras,M Zito,R G Jacobsen,W H Toki,M Verderi,D Dong,S H Robertson,R Gamet,M Lo Vetere,M K Sullivan,J H Von Wimmersperg-Toeller,A Anjomshoaa,R Frey,M Dickopp,W J Wisniewski,G Vaitsas,G Crosetti,P Dixon,J J Back,W T Ford,C M Hawkes,M Pripstein,N R Barlow,D G Hitlin,T B Moore,R W Kadel,J Brose,C C Young,A Höcker,S Otto,P M Patel,T J Harrison,C Touramanis,S Yang,A M Lutz,A Santroni,N De Groot,J Fullwood,G Eigen,S Bettarini,T Glanzman,A A Korol,R Baldini-Ferroli,C Roat,S Prell,L Lanceri,G Cavoto,C H Cheng,S Jayatilleke,F Anulli,E Maly,C Gatto,A M Eisner,S George,M H Kelsey,J Ocariz,C Dallapiccola,P Strother,H W Shorthouse,O Hamon,G W London,A Perazzo,U Egede,M Morii,A Lusiani,M Piccolo,A Snyder,G Blaylock,J Beringer,A Tumanov,J M Roney,S Willocq,K Paick,J Albert,M D Sokoloff,S Playfer,S L Levy,S J Sekula,M G Wilson,M Mandelkern,M R Convery,P J Clark,J Chauveau,G Marchiori,B Mayer,H R Band,G Rong,F C Porter,F Salvatore,A Hicheur,F Simonetto,E Charles,G Batignani,H Briand,A R Buzykaev,H Marsiske,A Romosan,D B Macfarlane,F Galeazzi,L Gladney,J R Fry,D Falciai,S Dittongo,A Jawahery,M Weaver,S Luitz,I M Peruzzi,G Vasileiadis,J Stelzer,W Kozanecki,M Turri,V Lillard,J T Boyd,D A Sanders,A D Bukin,T Pulliam,A Hauke,N Chevalier,J C Williams,S F Ganzhur,D Boutigny,V N Ivanchenko,P Poropat,J Blouw,E I Rosenberg,T Colberg,H M Lacker,M S Gill,G Raven,A W Borgland,S Ferrag,D W G S Leith,R Bartoldus,M George,V B Koptchev,F Muheim,M Serra,A Samuel,R S Dubitzky,L Bosisio,C Hearty,C M Brown,T A Gabriel,D Lavin,A Gaidot,D Judd,R Schwierz,L Piemontese,G Rizzo,M Falbo,J P Lees,N D Qi,N B Sinev,D J Knowles,A P Onuchin,F Ferroni,I Kitayama,R Aleksan,F Bianchi,J G Smith,J M Losecco,D Aston,W C Van Hoek,G Michelon,C Hast,S S Hertzbach,E Torassa,M Bondioli,C Leclerc,V Lepeltier,S Morganti,C Bozzi,R Messner,G Bellodi,S I Serednyakov,C Borean,R N Cahn,G Grosdidier,H Staengle,P Rankin,H Schmuecker,A J Lankford,M Iwasaki,G Mancinelli,M Mugge,D Su,W S Lockman,G De Nardo,C E Marker,S Emery,F Sandrelli,A W Weidemann,F Bucci,E Chen,T Himel,B N Ratcliff,R Cowan,J Oyang,D Gamba,F Ferrarotto,B Brau,F Martínez-Vidal ,A Khan,S F Schaffner,J Panetta,S Rahatlou ,G Simi,J Cochran,Kazuo Abe ,C K Mackay ,J Allison,C Lü ,A V Gritsan,P F Manfredi,Eichenbaum Am ,W A Wenzel,P Patterí ,G Hamel De Monchenault ,P Elmer,W Bugg,Yu I Skovpen,M Dima ,Helen R Quinn ,K Peters,W Walkowiak,Yu G Kolomensky,V Shelkov ,S Mcmahon,T I Meyer,Hirohisa Tanaka ,E W Varnes,C Sciacca,N Berger,Ch De La Vaissière ,M.g Pia ,P.b Vidal ,B Meadows ,S T’jampens ,A Soha,J A Kadyk ,S Metzler,M Kay,A J Bevan,L Cremaldi,N Neri,R Bionta ,G Cowan,R Liu,C P O’grady ,P Bright-Thomas ,M Macrı́ ,J Cohen-Tanugi,M Bóna ,V Sharma,S Dasu,Н Кузнецова ,I Scott ,J Walsh,J Zhang,J Olsen,И Адам ,P Kim,R.j.l Potter ,S Bagnasco,P Robbe,F Fabozzi,P F Giraud ,J E Swain,A J.r Weinstein ,P David,A Farbin,M.e Huffer ,N.j.w Gunawardane ,G Sciolla,V Re,A Pompili,M L Aspinwall,A J S Smith,D R Müller ,J Lämsä ,E Graugés ,T.m.b Kordich ,D C Williams,V I Telnov,G P Chen,J.y Nief ,V Blinov ,E Robutti,A R Clark,D.a Bukin ,V Brigljević ,A K Mckemey,T Haas,D Best,H Hu,X C Lou,J Stark,M E Levi,D.p Coupal ,P.j Oddone ,C Campagnari,T Brandt,P C Bloom ,D Bernard,F Taylor,M Langer,D Piccolo,S Plaszczynski,D H Wright,C Buchanan,P F Harrison,M Morandin,T Adye,M Purohit ,A Soffer,A Forti ,P Wang,V Lüth ,P Fischer ,S Trincaz-Duvoid,J Button‐Shafer ,J Va’vra ,R Müller-Pfefferkorn,J Richman ,S Tosi,T Barillari,M R Monge,S Jolly,L Roos,P D Jackson,H O Cohn ,D Smith,A Ryd,Ch Yèche ,P A Hart,Y Pan,Y Xie,V E Özcan ,B A Schumm,J Reidy,D M Wright,C Angelini,W Verkerke,N Cavallo,S Laplace,S R Wagner,J.m Gaillard ,R Waldi,J Nash ,J H Weatherall,S W O’neale ,J Schieck ,D.e Azzopardi ,U Langenegger,S Spanier ,D N Brown,J.f Kral ,M Kunze,B Dahmes,P Paolucci,M A Giorgi,F Jackson,F Pastore ,R Kofler,Patricia Mcgrath ,T Hryn’ova ,В Б Голубев ,S Chun,S Menke,M Perl,L Lista,H Singh,T L Geld,R C Field,M Steinke,Ph Leruste ,S Xella ,J Tinslay,R Henderson,Z Yu,C Jessop ,M Grothe,E.d Frank ,R Y Zhu,R Bernet,J R Johnson,J E Brau ,J M Izen,T R Mcmahon,Ch Thiebaux ,M Kocian ,R.j Sloane ,J.r.g Alsmiller ,D Strom,F X Yumiceva,O Long,M Margoni,H Koch,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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