Determination offs/fdfor 7 TeVppCollisions and Measurement of theB0→D−K+Branching Fraction

R Aaij,V Tisserand,M Alexander,S Blusk,J Van Tilburg,J Blouw,W Witzeling,S Stahl,H Voss,G Wilkinson,P Collins,G Auriemma,M Schmelling,R Nandakumar,N Chiapolini,F Stagni,U Kerzel,A Falabella,D Lambert,N H Brook,P Seyfert,S Malde,N Nikitin,E Aslanides,C Matteuzzi,W Bonivento,C Blanks,A Grecu,A Lai,J H Rademacker,J J Back,H V Cliff,M Van Beuzekom,T Ketel,C Deplano,P Jaton,A Bondar,L Arrabito,C Adrover,H Degaudenzi,C Thomas,J Merkel,K Vervink,T Gershon,I V Machikhiliyan,E Teodorescu,A Martens,S Playfer,K Carvalho Akiba,E Lopez Asamar,T Kvaratskheliya,K Rinnert,O Okhrimenko,S De Capua,A Büchler-Germann,J Anderson,J Closier,W Baldini,C Bozzi,J Bressieux,E Rodrigues,J Panman,G Raven,C R Jones,A Leflat,R Vazquez Gomez,P Perret,E Gushchin,B Storaci,Y Shcheglov,C Gaspar,S Nies,M Needham,P Sail,N Gauvin,J Nardulli,J Van Leerdam,E Van Herwijnen,S Kandybei,J M Caicedo Carvajal,C Farinelli,B Gui,U Uwer,R Schwemmer,S Brisbane,I Videau,D Galli,V Egorychev,P Campana,D Dossett,A Petrolini,D Websdale,P Spradlin,S C Haines,M Shapkin,W Barter,L Garrido,O Yushchenko,R B Appleby,P Hunt,M Adinolfi,M Britsch,M Gandelman,B Pietrzyk,T Brambach,B Liu,C Salzmann,J Imong,Yu Guz,M Orlandea,A Shires,R Ekelhof,C Färber,J H Lopes,F J P Soler,G Corti,M Tobin,M Sapunov,S Kukulak,G Polok,C Bauer,K Senderowska,L Shekhtman,G Krocker,B Spaan,O Aquines Gutierrez,M Merk,T Skwarnicki,G Manca,T Blake,C Linn,L Kravchuk,N Neufeld,C Parkes,M P Williams,F Dupertuis,R Dzhelyadin,J Magnin,M Fontana,E Santovetti,N Serra,D L Perego,R Oldeman,G Alkhazov,O Callot,F Kruse,B Viaud,T Ruf,J Rouvinet,D Voong,T Nakada,A Artamonov,A Dovbnya,A Powell,G Conti,C Eames,P Szczypka,L Carson,L A Granado Cardoso,G Penso,V Heijne,A Massafferri,A Bursche,A Bates,I Shapoval,M Nedos,G Bencivenni,R J Barlow,M Artuso,A Satta,S Swientek,D Johnson,S Monteil,C Satriano,J Amoraal,V Niess,M Pepe Altarelli,M Calvo Gomez,R Mcnulty,S Schleich,A Zhelezov,R Märki,M Szczekowski,V Vagnoni,Th Bauer,P De Simone,C Potterat,A Schopper,F Alessio,J Palacios,G D Patel,A Kozlinskiy,Ph Charpentier,K Müller,P Schaack,J Wang,J Wishahi,R W Lambert,G Mancinelli,F De Lorenzi,D Moran,C Nguyen-Mau,O Maev,J Buytaert,V Shevchenko,P Diniz Batista,O Schneider,S Barsuk,L Del Buono,D Wiedner,J M De Miranda,M Witek,S Furcas,M Patel,C Coca,S Koblitz,S Topp-Joergensen,C Patrignani,A Golutvin,U Marconi,V Obraztsov,P M Bjørnstad,G Haefeli,G Carboni,G J Rogers,O Steinkamp,A Bobrov,F Blanc,J Lefrançois,P Gandini,C Fitzpatrick,R Jacobsson,R Harji,M Deissenroth,S Borghi,J J Saborido Silva,M Palutan,S Perazzini,S Gregson,D Hynds,G Mcgregor,G Pessina,A Vollhardt,Y Zhang,A A Alves,R Mountain,M Matveev,I De Bonis,E Lanciotti,P Krokovny,T M Karbach,M Deckenhoff,R M D Mamunur,J Benton,I Raniuk,Y Amhis,J He,A Martín Sánchez,C Rodriguez Cobo,R Plackett,S Oggero,S Easo,B Souza De Paula,P Henrard,R Santinelli,A Borgia,T Du Pree,S Redford,I Mous,A Camboni,T Lesiak,R Messi,Y Xie,T Latham,M Seco,V Gibson,A Tsaregorodtsev,P Naik,M Whitehead,K Wyllie,D Pinci,J Albrecht,M Musy,M Perrin-Terrin,E Polycarpo,A Carbone,A Sarti,H P Skottowe,M Nicol,A Cook,M Knecht,M Grabalosa Gándara,I Bediaga,R Lindner,G Valenti,B Schmidt,A Vorobyev,S Ricciardi,F Soomro,M M Reid,L Li,S Benson,V Fernandez Albor,M De Cian,A Zvyagin,A Maier,A Bay,B Jost,F Maciuc,E Jans,G Martellotti,M Veltri,J Serrano,S Wandernoth,G Lanfranchi,W Hulsbergen,A Papanestis,R Young,V Fave,S Farry,S Hansmann-Menzemer,D R Ward,F Eisele,L Li Gioi,T Britton,B Muryn,S Bifani,S A Wotton,B Popovici,K Hennessy,A Puig Navarro,F Xing,A Gomes,F Teubert,D Savrina,E Ben-Haim,R Cardinale,T Gys,M T Tran,U Straumann,G Passaleva,M Kucharczyk,F Constantin,V N La Thi,S K Paterson,W Qian,B Rakotomiaramanana,A Contu,R Lefèvre,J Harrison,A Petrella,C Langenbruch,M Frosini,S Eidelman,P David,K Wacker,L De Paula,T Huse,F Jansen,A Solomin,S Miglioranzi,K Kreplin,G Graziani,C Göbel,F Fontanelli,K Kruzelecki,T J V Bowcock,A Keune,B Pie Valls,S Ogilvy,A C Dos Reis,P Morawski,A D Webber,T Hampson,R Silva Coutinho,E Fanchini,G Fardell,R Kumar,J A Hernando Morata,V Pugatch,G N Patrick,R Santacesaria,J Marks,V Bocci,R S Huston,M Coombes,A Gallas Torreira,C Mclean,N Mangiafave,P E L Clarke,A Mazurov,C D’Ambrosio,U Egede,Ph Ghez,B Maynard,L Wiggers,M Lieng,H Ruiz,A Cardini,J Keaveney,G Sabatino,S Stoica,V V Gligorov,X Cid Vidal,O Deschamps,F Machefert,K Belous,D Van Eijk,M Pappagallo,F F Wilson,N Sagidova,E Thomas,G A Cowan,F Muheim,M Benayoun,A Pérez-Calero Yzquierdo,N Tuning,A Sciubba,A Sparkes,S Filippov,M Meissner,R Forty,A Ukleja,M.-N Minard,M Schiller,C Barschel,A Semennikov,C Pavel-Nicorescu,R Graciani Diaz,J Luisier,P Alvarez Cartelle,S Vecchi,R Le Gac,V Romanovsky,D A Roa Romero,K Holubyev,J Garofoli,J M Otalora Goicochea,L Zhong,R Currie,T Szumlak,D Décamp ,S Amato,N López-March ,Z Ajaltouni,Ch Elsässer ,V Coco,J J Velthuis,J Dickens,M Calvi,J Višniakov ,M Zavertyaev,O Leroy,Beibei Shao ,C Frei,A Bizzeti,M Charles,Y Y Li,N Harnew,M Pló Casasús ,H Dijkstra,В Яковенко ,B Khanji,A Affolder,P Robbe,H A Gordon ,M Ferro‐Luzzi ,B Saitta,D Martínez Santos ,P H Hopchev ,D D’enterria ,J C Garnier ,P Ilten,I Belyaev,A C Smith ,D A Milanés ,A Obłąkowska-Mucha ,D Bailey ,J Cogan,S Eisenhardt,B Adeva,J V Morris,M Gersabeck,M Jahjah Hussein,M Clemencic,P Vázquez Regueiro ,D Popov,M Frank,G D Lafferty ,П Б Шаталов ,P F Harrison,L M Garcia Martin ,S T’Jampens,E G Zverev ,W Hofmann,X Vilasis‐Cardona ,K Sobczak,О Shevchenko ,S Bachmann,A Pellegrino,F Dettori,J Van Den Brand,G Liu,L Estève,D Lacarrère ,M O Bettler ,Y M Kim,M John,C J Parkinson,B K Pal ,Z Yang,W C Zhang,D Golubkov,F Jing,P Rodríguez Pérez ,A Pazos Álvarez ,E Pérez Trigo ,N A Smith,D Esperante Pereira,P Koppenburg,F Ferreira Rodrigues ,N Bondar,N A Styles ,A Poluektov,P Urquijo,E Maurice,B Dalmagne ,L Eklund,R Bernet,T Shears,M Cattaneo,A Bień ,E Graugés,J P Lees ,Z Máthé ,V Balagura,D Hutchcroft,B Jean‐Marie ,G Casse,Yuan Gao ,S Cadeddu,L Zhang,M Savrié ,S Stone,M Sannino,M H Schune ,T Pilař ,R Mureşan

doi:10.1103/physrevlett.107.211801

Abstract

The relative abundance of the three decay modes B(0)→D(-)K(+), B(0)→D(-)π(+), and B(s)(0)→D(s)(-)π(+) produced in 7 TeV pp collisions at the LHC is determined from data corresponding to an integrated luminosity of 35 pb(-1). The branching fraction of B(0)→D(-)K(+) is found to be B(B(0)→D(-)K(+)) = (2.01 ± 0.18(stat) ± 0.14(syst)) × 10(-4). The ratio of fragmentation fractions f(s)/f(d) is determined through the relative abundance of B(s)(0)→D(s)(-)π(+) to B(0)→D(-)K(+) and B(0)→D(-)π(+), leading to f(s)/f(d) = 0.253 ± 0.017 ± 0.017 ± 0.020, where the uncertainties are statistical, systematic, and theoretical, respectively.

Full Text