Evidence forB+→K¯*0K*+

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

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