Study of dipion bottomonium transitions and search for thehb(1P)state

J P Lees,M Rama,S Emery,B Bhuyan,K E Alwyn,S Nelson,F Anulli,R Frey,A J Lankford,O Grünberg,D R Peimer,R De Sangro,P J Clark,W T Meyer,G J King,K Honscheid,A Roodman,V Ziegler,J Marks,C Bozzi,S Sitt,N Arnaud,R Godang,J Va’Vra,F Simonetto,W R Innes,F Le Diberder,J Dorfan,G Grosdidier,C Dallapiccola,R Baldini-Ferroli,A V Telnov,G Piredda,S H Robertson,V Poireau,D J Asgeirsson,N B Sinev,R Faccini,H B Crawley,M Ebert,M Gaspero,G M Vitug,G Calderini,R Schwierz,P R Burchat,M Posocco,P Taras,S Passaggio,A Jawahery,U Mallik,C Hearty,F Forti,B Stugu,V P Druzhinin,G Onorato,H L Snoek,M L Kocian,Z J Guo,D Lopes Pegna,G Finocchiaro,C A Chavez,F Di Lodovico,S Bettarini,J Albert,M Wittgen,M Munerato,C Cartaro,C Patrignani,M Verderi,E Feltresi,S Pacetti,C Bünger,I Ofte,M R Convery,M A Mazzoni,I Bingham,P Biassoni,O Hamon,A M Lutz,J M Roney,A Seiden,D Kirkby,E Gabathuler,D Bettoni,A K Yarritu,J D Richman,D Su,H L Lynch,E Torrence,L Piemontese,W Park,G Eigen,W S Lockman,A Zallo,E A Kravchenko,D B Macfarlane,A N Yushkov,M Bellis,C Hast,R Sacco,R Prepost,I Garzia,S L Wu,U Nauenberg,E Paoloni,L Lanceri,F C Porter,D Gamba,A Stocchi,Yu G Kolomensky,N Guttman,A Snyder,W T Ford,R Bartoldus,M K Sullivan,M Fritsch,P Lund,H W Wulsin,A P Onuchin,U Uwer,A R Buzykaev,R Gorodeisky,E Prencipe,M Weaver,A M Ruland,C J Schilling,T Pulliam,D A Doll,D J Bard,F Bianchi,F Ferroni,M Mandelkern,S J Sekula,H Atmacan,G D Lafferty,R Eckmann,B Hamilton,B Spaan,J Kroseberg,W Dunwoodie,G P Dubois-Felsmann,E P Solodov,R Cenci,A M Eisner,V Santoro,D J Summers,S Playfer,M Franco Sevilla,C C Young,K J Knoepfel,X Nguyen,A E Rubin,T Hartmann,A Lusiani,T Lueck,R Kroeger,S Stracka,M Schram,E Ben-Haim,G Cavoto,A Lazzaro,R Stroili,S I Serednyakov,I M Nugent,P M Patel,G Casarosa,D Monorchio,W J Wisniewski,C H Cheng,H R Band,J Ocariz,V Prasad,R J Barlow,P Ongmongkolkul,J Chauveau,H M Lacker,D Lindemann,M Piccolo,R Andreassen,G Cibinetto,S Prell,M D Sokoloff,L Sun,J R Fry,M S Alam,P Roudeau,P Sonnek,S Curry,A Y Rakitin,D J Payne,M Pappagallo,M H Kelsey,H H F Choi,T Leddig,B N Ratcliff,G Batignani,J G Smith,T S Mattison,D Aston,J W Gary,R Cowan,R Ayad,F F Wilson,P C Bloom,C Lindsay,T Schalk,H Schröder,C Touramanis,M Rotondo,A Oyanguren,R F Schwitters,A Palano,J A Mckenna,N Gagliardi,V Tisserand,W Gradl,G Vasseur,F Palombo,E Fioravanti,K R Schubert,R Contri,E I Rosenberg,M Davier,H Briand,F Ferrarotto,L Vitale,T M Hong,I M Peruzzi,M Nicolaci,M J Lewczuk,G Lynch,K T Flood,T S Miyashita,A Hafner,L T Kerth,R H Schindler,D G Hitlin,B C Wray,G Wormser,M H Schune,M Morii,M Carpinelli,L Li Gioi,F Liu,J P Coleman,J M Losecco,W H Toki,S Luitz,G De Nardo,D P Stoker,M Bondioli,R Calabrese,B G Fulsom,R Kowalewski,A M Gabareen,C L Davis,G Marchiori,B Echenard,B Oberhof,D A Roberts,J L Ritchie,A Calcaterra,E M T Puccio,D W G S Leith,G R Bonneaud,M Lo Vetere,A Adametz,G Rizzo,G Raven,J Ernst ,A Denig ,H Kim,P Kim,R Kass,C West ,М Перл ,J Walsh ,A Rossi,H Ahmed,M Nagel,G Cowan,V Lüth ,D A Milanés ,P F Harrison,B Lindquist,S Paramesvaran,D Hutchcroft ,A V Gritsan,G Hamel De Monchenault,T Vazquez Schroeder ,F U Bernlochner,A Salnikov ,S Banerjee ,T Latham ,G Sciolla,M T Graham,P K Behera,S R Wagner,M Martinelli,P Patterí ,D Moran ,A J Bevan,H Koch,S Li,E Robutti,M Sigamani,C Angelini,T Gershon ,E Graugés ,D Lange ,X C Lou,M Dubrovin ,A P Wagner,J M Izen,Y Pan,Ch Yèche ,M J Tibbetts ,A J Martínez ,R C Field,Yu I Skovpen,A Khan,C Vuosalo ,L Cremaldi,J F Benitez,E Manoni,B A Schumm,D N Brown,P Grenier,H A Neal ,J Cochran,A J Edwards,M A Giorgi,M Margoni,S Spanier ,C Lü ,N Neri,E Luppi,K Yu Todyshev ,G Simi,P Lewis,A Pérez ,В Б Голубев ,J Garra Ticó ,D Wright ,M Biasini,D Dujmić ,Ph Leruste ,P Dauncey ,M Purohit ,D R Müller ,W F Wang,R M White,G Jackson,M R Monge,C Chen,M Kobel ,N López-March ,B Meadows ,C Campagnari,A Randle-Conde,B Malaescu,S Dasu,M Bomben,F Martínez-Vidal ,C Jessop ,E Olaiya ,M Negrini,R Sobie ,E Guido,C L Lee,J Olsen,C Sciacca,J R Wilson,J E Brau ,T Adye,A Gaz,V Lombardo,A Cervelli,A Soffer,A J S Smith,V Blinov ,D Bernard,D Bailey,D Strom,O Long,D Kovalskyi,R Waldi

doi:10.1103/physrevd.84.011104

Abstract

We study inclusive di-pion decays using a sample of 108 x 10^6 Upsilon(3S) events recorded with the BABAR detector. We search for the decay mode Upsilon(3S) --> pi+ pi- h_b(1P) and find no evidence for the bottomonium spin-singlet state h_b(1P) in the invariant mass distribution recoiling against the pi+ pi- system. Assuming the h_b(1P) mass to be 9.900 GeV/c^2, we measure the upper limit on the branching fraction B[Upsilon(3S) --> pi+ pi- h_b(1P)] < 1.2 x 10^{-4}, at 90% confidence level. We also investigate the chi_{bJ}(2P) --> pi+ pi- chi_{bJ}(1P), Upsilon(3S) --> pi+ pi- Upsilon(2S), and Upsilon(2S) --> pi+ pi- Upsilon(1S) di-pion transitions and present an improved measurement of the branching fraction of the Upsilon(3S) --> pi+ pi- Upsilon(2S) decay and of the Upsilon(3S)-Upsilon(2S) mass difference.

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