Evidence For The Decay B-0 -> Omega Omega And Search For B-0 -> Omega Phi

J P Lees,M Wittgen,S Playfer,G R Bonneaud,R Schwierz,P D Dauncey, C A West,G Eigen,F Le Diberder,W S Lockman,D Su,E Guido,C P Jessop,G Marchiori, D Strom,E Prencipe,M T Graham,M Simard,M Margoni,R Andreassen,F Ferrarotto,V P Druzhinin, G Calderini,M Bomben, C Patrignani,G Simi,W R Innes,D Monorchio,I Garzia,R M White,S Zambito,B Spaan,A Randleconde, D B Macfarlane,J P Coleman,M Verderi,M Morandin,S J Sekula,P C Bloom,M Martinelli,M Chrzaszcz,L T Kerth,P Ongmongkolkul,K Honscheid,V E Blinov,G Vasseur,P F Harrison,A V Gritsan,T Pulliam,A Adametz,J M Roney,R Cheaib,A Stocchi,A M Eisner,K R Schubert,R Kass,R Godang,J Cochran,E Robutti,J Ocariz,R Faccini, B G Fulsom,B Dey,T E Latham,R Kowalewski,B Echenard,M Gaspero,A M Rossi,W T Meyer,V Prasad,S Akar,G De Nardo,M J Lewczuk,M Rama,F Di Lodovico,H R Band,A Zallo, C Bunger,Holger M Koch,Yu G Kolomensky,A Hafner,R Waldi,D G Hitlin,M D Sokoloff, S M Spanier,A J Lankford,J A Mckenna,P M Patel,T Hartmann,R Contri,A Filippi,Yu I Skovpen,W Gradl,S Luitz,A Lusiani,H H F Choi,J L Ritchie,F Ferroni,A Palano,A N Yushkov,N Guttman,G Grosdidier, R Gorodeisky,V Ziegler,R De Sangro,D J Bard,J R Fry,V Poireau,R Cowan,T S Mattison,F Bianchi,C Bozzi,H W Wulsin,M Piccolo,U Nauenberg,M L Kocian,J G Smith,Ph Leruste,D H Wright,P Patteri,Mark A Bellis,A Perez,A Wagner,X C Lou,F U Bernlochner,N Arnaud, K Griessinger,E A Kravchenko,W H Toki,G P Duboisfelsmann,B Hamilton,M Carpinelli,T Gershon,G J King,M Franco Sevilla,S Sitt,R J Barlow,F Martinezvidal,M Posocco,A Jawahery,D Gamba,M Lo Vetere,G D Lafferty,G Sciolla,D J Lange,R F Schwitters,S Pacetti, B G Pushpawela, P Villanuevaperez,J Walsh,N Neri,J Brau,D A Roberts,M Perl,P Lewis,R Sacco,T Lueck, B Malaescu, R C Field,S Bettarini,T M Hong,F Anulli, C Vos,E Luppi,S I Serednyakov,K T Flood,B A Schumm,D J Summers,D W G S Leith,P Roudeau,A G Denig,B Stugu, M R Monge,H M Lacker,B N Ratcliff,C Chen,J M Izen,C Cartaro,G Wormser,S Emery,A Cervelli,G Lynch,G Finocchiaro, A J S Smith,B C Wray,J F Benitez,T Adye,P Taras,A Gaz, S Dasu,R Frey,H Ahmed,C Campagnari,S Dittrich, G Rizzo,R Ayad,Sau Lan Wu,Z Huard,T Schroeder,R Cenci,A Seiden,S Martellotti,K Yu Todyshev,T S Miyashita,A M Lutz, C Angelini,E M T Puccio, A P Onuchin,Denis Bernard,U Uwer,L Piemontese,M V Purohit,D Aston,G Cowan,D Lopes Pegna,D Bettoni,S Nelson,E Gabathuler,G Batignani,Sw Banerjee,W Panduro Vazquez,G Casarosa,A M Ruland,M Fritsch,J Ernst,R Prepost,E Manoni,N Tasneem,M A Giorgi,C Touramanis,P Kim,M K Sullivan,B T Meadows,M R Convery,H A Neal,B Lindquist,S Prell,S Passaggio,N B Sinev,A M Gabareen, J Dorfan,A J Bevan,E Torrence,D J Payne,G Cibinetto,S H Robertson,F Simonetto,D Kovalskyi,P Sonnek,R H Schindler,E Paoloni,E Feltresi,R Sobie,M J Lee,J Va Vra,M Ebert,M Rotondo,W Dunwoodie,G Piredda,D Dujmic,C Hast,G Raven,D N Brown,L Lanceri,E Grauges,T Leddig,H Briand,O Long,A Snyder,R Calabrese,Y Pan,D Derkach,W J Wisniewski,I M Nugent,D S Chao,V Luth,G Onorato, S R Wagner,M S Alam,E Fioravanti,D E Hutchcroft,I M Peruzzi,H L Lynch,L Cremaldi,E P Solodov,E O Olaiya,J Olsen,R Stroili,C Hearty,J Bougher,J W Gary,V B Golubev,L Vitale,O Grunberg,A Roodman,U Mallik,B Oberhof, C Sciacca,M Mandelkern,F Palombo,M Biasini,B Bhuyan,F F Wilson,C H Cheng,D Lindemann, A R Buzykaev,D R Muller,C L Davis,F Forti,A Soffer,Akram Khan,L Sun,V Tisserand,A Calcaterra,J Chauveau,P R Burchat,M Morii,W F Wang,E Benhaim,V Santoro, P Biassoni,M Davier,J D Richman,A Oyanguren,A A Salnikov,W T Ford,J M Losecco,R Y So, L Li Gioi,F De Mori,D R Peimer,J R Wilson,J Albert,F C Porter

PHYSICAL REVIEW D（2014）

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摘要

We describe searches for B meson decays to the charmless vector-vector final states omega omega and omega phi with 471 x 10(6) B (B) over bar pairs produced in e(+)e(-) annihilation at root s = 10.58 GeV using the BABAR detector at the PEP-II collider at the SLAC National Accelerator Laboratory. We measure the branching fraction B(B-0 -> omega omega) = (1.2 +/- 0.3(-0.2)(+0.3)) x 10(-6), where the first uncertainty is statistical and the second is systematic, corresponding to a significance of 4.4 standard deviations. We also determine the upper limit B(B-0 -> omega phi) < 0.7 x 10(-6) at 90% confidence level. These measurements provide the first evidence for the decay B-0 -> omega omega, and an improvement of the upper limit for the decay B-0 -> omega phi.

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