Observation of orbitally excitedBmesons inpp¯collisions ats=1.8 TeV

A A Affolder ,D Cauz,Y Kato,M Mishina,M Shimojima,A Barbaro-Galtieri,K Karr,S Errede,D Winn,B Hinrichsen,A Menzione,J Done,N Bruner,W K Sakumoto,R D Kennedy,P Yeh,S Geer,R L Wagner,T Devlin,S R Hahn,D Wolinski,P Giromini,S R Amendolia,I Vologouev,M Binkley,A Bhatti,A Korn,J Steele,A M Walsh,S Rolli,L Pondrom,J Boudreau,R Roser,J Iwai,A Solodsky,F Spinella,S Bertolucci,J Wolinski,M Jones,A Caner,G Pauletta,J D Lewis,R E Blair,K Sliwa,P Sinervo,T Ohsugi,D W Gerdes,C H Wang,A Byon-Wagner,P Murat,S Klimenko,D Lucchesi,F Rimondi,D Khazins,H S Budd,T Speer,G Piacentino,K Kurino,K Kelley,H Akimoto,E E Schmidt,H Kasha,S Segler,S Lami,A Munar,J Valls,D Amidei,J Huston,S Wolbers,D Neuberger,D Reher,K S Mcfarland,K Tollefson,J Siegrist,C Holck,G Velev,C Bromberg,G Introzzi,E Cocca,F Palmonari,Y Iwata,R G Feild,K Takikawa,T Takano,A Rakitine,R Oishi,R Vilar,P Koehn,T A Keaffaber,M W Bailey,S Cihangir,R Madrak,Y Morita,J Wyss,C I Ciobanu,M Menguzzato,T Asakawa,L Groer,M Incagli,N Moggi,E Kovacs,F Ptohos,M Barone,A Scribano,S H Oh,S Lusin,T Suzuki,D Cronin-Hennessy,C Yosef,R Cropp,E Buckley-Geer,B Tannenbaum,P Amaral,F D Snider,M Tecchio,T J Phillips,W Bokhari,M Guenther,P Nicolaidi,R Kephart,F Strumia,S Miscetti,B A Barnett,J I Lamoureux,A D Hardman,R Handler,H Nakada,D Partos,S H Kim,M Garcia-Sciveres,J Proudfoot,S Galeotti,M Musy,J E Elias,J Spalding,W C Wester,T Miao,T Handa,A Tollestrup,G Martignon,H Grassmann,M P Schmidt,E Engels,V Papadimitriou,W Ashmanskas,S P Pappas,P F Shepard,A J Slaughter,A Mukherjee,J Patrick,E Wicklund,J Cooper,W J Robertson,H Toyoda,G Bauer,F Dejongh,A Gordon,P F Derwent,Y Gotra,A Köngeter,A Bodek,I Fiori,J P Berge,S Murgia,G P Yeh,S Truitt,L Santi,T Kaneko,B S Blusk,B Flaugher,G Punzi,J Cassada,M Lancaster,N Eddy,J B Liu,H H Williams,S Vejcik,G Guillian,D Errede,M Gold,Y Seiya,M Cordelli,Q Fan,D Dagenhart,T Okusawa,P Mazzanti,W Hao,P Gatti,L Holloway,A Reichold,M Franklin,N B Wallace,G Busetto,L Pescara,C Grosso-Pilcher,S Tether,F Zetti,G W Foster,N Lai,A Akopian,M L Chu,L Christofek,A Ribon,A T Laasanen,M J Kim,D Vucinic,M Loreti,D Waters,M Campbell,W Carithers,L Rosenson,S E Kuhlmann,G Chlachidze,F Semeria,A T Goshaw,A Semenov,A Connolly,C Pagliarone,A B Wicklund,J Conway,J Budagov,M Lindgren,P K Teng,J Yoh,S Donati,F Azfar,L Nodulman,C Mesropian,K Kondo,J Cranshaw,G Pope,F Happacher,P Wilson,K D Hoffman,K Anikeev,K L Byrum,S Zucchelli,B Bevensee,K Ragan,C Miao,T Kuwabara,L Malferrari,Y Bonushkin,S Tkaczyk,R Culbertson,J Lys,L Demortier,D Theriot,T Shibayama,C Haber,S Bailey,E James,P Lukens,H Minato,P Schlabach,K Goulianos,R Vidal,R Démina ,B Blumenfeld,S Nahn,S Van Den Brink,S C Seidel ,I Yu,J Loken,M Cobal,W Erdmann,C Newman-Holmes,A Robinson,Y C Chen,J Incandela,A Castro,R Paoletti,K Einsweiler,A Chan ,M Mariotti,G Signorelli,W Riegler,L Lyons,P Mcintyre,W Taylor,N Turini,V E Barnes,P S Chang,S Belforte,D Carlsmith,P Sphicas,J Carlson,M Kelly,T Yoshida,J Kroll,U Joshi,W Trischuk,C Smith,J Friedman,K Maeshima,Y C Liu,H Ikeda,C Wang,C Bigongiari,H Wenzel,P Azzi ,Y Fukui,K Hara,G Chiarelli,A Brandl,M Kirk,D Bortoletto,N S Lockyer ,R Hollebeek,D Saltzberg,И Чириков-Зорин ,J Chapman,R Webb,L Scodellaro,G Bellettini,J Antos̆ ,A Zanetti,M Kruse,H Jensen,N Bacchetta,J Hauser,P Giannetti,K Bloom,M Ataç ,M Mangano,T Kamon,S Leone,F Bedeschi,T Shah,K Terashi,J Guimarães Da Costa ,R Rossin,A M Lee,E Meschi,A Cerri,T Gao,W-M Yao ,Charles A Nelson ,A Martín ,J Tseng,Y K Kim,C Hall,J Bellinger,M J Wang,R G Wagner,A Scott,A Yagil,R M Harris,J Olsen,A Pompoš ,M Tanaka,F Hartmann,F Ukegawa,M Brozović ,J S Miller,R Moore,T M Liss,P Tipton,T Rodrigo,E Hafen,B J Kim,C Chen,D Stuart,A Beretvas,T Lecompte,A Heiß ,F Chlebana,A Nomerotski,X Wu,C Green,A F Garfinkel,S S Yu ,M Popovic,M Schmitt,Takashi Watanabe ,R Miller,A Stefanini,G Bolla,R S Guo,J Matthews ,C Blocker,K Sumorok,B L Winer,H S Kim,M Deninno,C Ferretti,L Stančo ,H D Wahl ,Th Müller ,G Latino,A Sansoni,M Dell’Orso,C Paus,M Gallinaro,M Paulini,S Dell’Agnello,G Apollinari,T Nakaya,K Pitts ,D Costanzo,J R Bensinger ,K Hatakeyama,T Arisawa,R Hughes,K Burkett,K Kordas,A Bocci,J Königsberg ,J Huth,E A Mckigney ,Niu Huang ,C Y.p Ngan ,J W Berryhill ,D Benjamin,T Watts,L Spiegel,P T Chang,J Nachtman,M Albrow ,H Kambara,L Ristori,M Spiropulu,P Savard,T Kikuchi,D Bisello,A Clark ,M Shapiro ,P Singh,R Thurman‐Keup ,J Freeman,S Lammel,J Dittmann ,R Takashima,R Plunkett,J Heinrich,Jorge F De Trocóniz ,T Ohmoto,V Glagolev,M J Shochet ,J Strologas,P De Barbaro,J Goldstein,T Dorigo,A Sill,M Chertok,E F Moore ,M T Cheng ,S D Worm ,P Maksimović ,I Nakano,L Kirsch,H Sato,F Prokoshin,A Korytov

doi:10.1103/physrevd.64.072002

Abstract

We measure the relative rate of production of orbitally excited (L=1) states of B mesons (B**) by observing their decays into Bπ±. We reconstruct B mesons through semileptonic decay channels using data collected in pp¯ collisions at s=1.8TeV. The fraction of light B mesons that are produced as L=1B** states is measured to be 0.28±0.06(stat)±0.03(syst). We also measure the collective mass of the B** states, and quantify the result by quoting the (model-dependent) mass of the lowest B** state to be m(B1)=5.71±0.02GeV/c2. Received 3 November 1999DOI:https://doi.org/10.1103/PhysRevD.64.072002©2001 American Physical Society

Full Text