Evidence forB+→K¯*0K*+

B Aubert,S L Wu,G B Mohanty,V Poireau,I Ofte,E Gabathuler,A Seiden,J A Mckenna,J Albert,A Adametz,W J Wisniewski,J M Losecco,B W Drummond,S Sitt,R Cowan,J P Burke,J R Fry,M Piccolo,A Roodman,P R Burchat,J G Smith,R Messner,W Gradl,N L Blount,S M Spanier,J Merkel,A Hauke,A T Watson,T Piatenko,K T Flood,S Pruvot,S Abachi,K Suzuki,R Stroili,G Castelli,G Eigen,S Playfer,A Lusiani,B J Wogsland,F C Porter,H L Lynch,M J Lewczuk,J W Gary,U Nauenberg,B Stugu,D P Stoker,V Klose,R Gamet,V Santoro,M Morganti,X Prudent,S Emery,K Wacker,M Lo Vetere,D A Roberts,R Baldini-Ferroli,M Rama,A Stocchi,M Pappagallo,G Piredda,H R Band,R Eckmann,H Atmacan,S Luitz,P H Fisher,M H Schune,S Pacetti,M Rotondo,A C Wren,J Marks,M Carpinelli,W Kozanecki,T S Mattison,D J Payne,J Dorfan,K S Chaisanguanthum,S I Serednyakov,M A Mazur,H Kagan,H L Snoek,M H Kelsey,A R Buzykaev,F Le Diberder,A Calcaterra,J Kroseberg,P D Dauncey,V Lepeltier,A E Rubin,A Palano,C Touramanis,R Faccini,L Li Gioi,H Nicholson,R H Schindler,H Briand,C H Cheng,P C Bloom,N Arnaud,A K Yarritu,B G Fulsom,L Lanceri,M T Allen,U Mallik,S Morganti,I M Peruzzi,J M Bauer,G Finocchiaro,B Spaan,C Voci,G Batignani,R Kroeger,T W Beck,M Morii,A V Telnov,H H F Choi,F Forti,H W Zhao,I Narsky,E P Solodov,R Ayad,D Aston,W Dunwoodie,D A Doll,M Wittgen,G Lynch,P M Patel,J M Roney,M Andreotti,S Prell,G Onorato,D Kirkby,S Ahmed,D J Summers,N Gagliardi,B Echenard,R F Schwitters,M Spitznagel,J M Tuggle,T Hartmann,X Chai,L Gladney,P J Clark,M R Convery,R Frey,J Va’Vra,G P Dubois-Felsmann,V Ziegler,F Renga,I M Nugent,U Uwer,R Kowalewski,H Schröder,J Serrano,R Cenci,E Baracchini,Z Yasin,J Schwiening,A Lazzaro,G Wormser,F Anulli,G Rizzo,R Prepost,G Cibinetto,L Bosisio,G D Lafferty,O Hamon,J Ocariz,J Anderson,D Gamba,C A Heusch,A Cecchi,D Bettoni,C L Davis,W T Ford,A Oyanguren,D J Bard,Yu G Kolomensky,K Honscheid,R De Sangro,F F Wilson,B N Ratcliff,I Bingham,R Schwierz,R Rahmat,E Torrence,Y Karyotakis,P Roudeau,W R Innes,E Feltresi,H B Crawley,V E Blinov,G Mancinelli,F Fang,C Dallapiccola,M Verderi,P Lund,Q K Wong,J D Richman,S Curry,S Passaggio,V Tisserand,J Béquilleux,K R Schubert,A Petrella,T S Miyashita,J P Lees,A Petzold,L Piemontese,A M Lutz,B Pan,C C Young,I Eschrich,J J Regensburger,G Vasseur,S Schenk,J L Ritchie,J P Coleman,S H Robertson,H W Wulsin,A M Eisner,M Battaglia,D A Milanes,R Nogowski,W Park,M Simard,Z J Guo,C A Chavez,D G Hitlin,E Prencipe,H M Lacker,R Contri,M Gaspero,F Ferroni,A Zallo,L Lopez,A J Lankford,C Cartaro,A Jawahery,W H Toki,C M Hawkes,P Del Amo Sanchez,J Prendki,R K Yamamoto,L Vitale,G De Nardo,J Chauveau,L A Corwin,P Taras,M Davier,N B Sinev,M K Sullivan,P Franchini,S Saremi,X R Chen,E M T Puccio,W S Lockman,M Barrett,E Ben-Haim,M L Kocian,S Nelson,A A Salnikov,H Jasper,R Sacco,D J Asgeirsson,E Paoloni,F Simonetto,D Lopes Pegna,R Bartoldus,D W G S Leith,M Weaver,C Bozzi,S Bettarini,K E Alwyn,A D Bukin,A Volk,R J Wilson,N Soni,T J West,J I Yi,F Bianchi,G M Vitug,D Su,R Andreassen,C J Schilling,E Salvati,M D Sokoloff,A M Ruland,C Voena,G R Bonneaud,D B Macfarlane,S B Zain,F Liu,C Hast,F Palombo,H Marsiske,M Posocco,T M Hong,M Zito,E Latour,F Ferrarotto,A Snyder,L T Kerth,G Raven,B Bhuyan,K J Knoepfel,G Grosdidier,M A Saeed,A M Gabareen,M Ebert,S J Sekula,M S Alam,G Marchiori,M Mandelkern,F Di Lodovico,R J Barlow,B Franek,G Cavoto,A M Rahimi,G Della Ricca,L Sun,G J King,T Schalk,C Patrignani,M Fritsch,M Bondioli,R Calabrese,G Calderini,C Hearty,E C Martin,D Monorchio,W T Meyer,E I Rosenberg,R Godang,M A Mazzoni,A P Onuchin,D M Wright,G Cowan,Y Y Gao,I Osipenkov ,Ph Leruste ,D Lange ,M Kobel ,A P Wagner,R M White,P D Jackson,D Hutchcroft ,J Kamiński ,J R Wilson,A Randle-Conde,M Bomben,M J Tibbetts ,S Paramesvaran,E Robutti,M Morandin,T Vazquez Schroeder ,C Campagnari,S Henderson ,X Chen,L Lista,A Gaz,C Chen,K Yi,Y B Pan ,T Gershon ,Ch Yèche ,J Ilić ,J E Watson,R Waldi,G Hamel De Monchenault,L Estève ,G Sciolla,C Angelini,S Li,L Zhang,J F Benitez,H A Neal ,C Buchanan,A V Gritsan,K Tackmann,D N Brown,A J Martínez ,D Dujmić ,J P Morris,A Soffer,S Dasu,M Nagel,C Lü ,J F Hirschauer,D Kovalskyi,M Bóna ,J M Thompson,G Jackson,C West ,M Purohit ,E Graugés ,T Adye,O Igonkina,H Koch,D Strom,В П Дружинин ,M Karbach,M Negrini,B Meadows ,F Taylor,J Kolb ,A J Bevan,D Bailey,B A Schumm,L Cremaldi,J Strube,H Kim,J M Izen,J Cochran,K Mishra,R Sobie ,P Kim,В Б Голубев ,L Meng ,P K Behera,F U Bernlochner,M Pelliccioni,E Manoni,T Latham ,F Martínez-Vidal ,M Sigamani,T Tanabe,М Перл ,A Cervelli,D R Muller,J Walsh ,J Garra Ticó ,A Khan,E Luppi,Yu I Skovpen,H Liu,C P O’Grady,J Firmino Da Costa,P Patterí ,W F Wang,R C Field,K Yu Todyshev ,E Olaiya ,N López-March ,R Kass,S K Swain,S Banerjee ,O R Long ,A J Edwards,M Charles ,G Simi,V Azzolini,V Lombardo,M T Graham,X Lou ,V Sordini,K Hamano,M Biasini,J Ernst ,B Lindquist,S R Wagner,P Grenier,M Margoni,Dong Liu ,D Bernard,V Lüth ,A Denig ,J Olsen,C Vuosalo ,J E Brau ,A Dʼorazio ,M R Monge,V Sharma,P F Harrison,M A Giorgi,D H Wright,A J S Smith,C P Jessop,L Winstrom ,A Pérez ,C Sciacca,M G Zhao ,N Neri,S Tosi,J Dingfelder ,Christopher Clarke

doi:10.1103/physrevd.79.051102

Abstract

We present measurements of the branching fraction and fraction of longitudinal polarization for the decay B+ -> K*0bar K*+ with a sample of 467 +/- 5 million BBbar pairs collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at the SLAC National Accelerator Laboratory. We obtain the branching fraction Br(B+ -> K*0bar K*+) = (1.2 +/- 0.5 +/- 0.1) x 10^{-6} with a significance of 3.7 standard deviations including systematic uncertainties. We measure the fraction of longitudinal polarization f_L = 0.75+0.16-0.26 +/- 0.03. The first error quoted is statistical and the second is systematic.

Full Text