在[公式：见正文]的碰撞中对（2）介子产生的测量。
Measurement of (2) meson production in collisions at [Formula: see text].
作者信息
Aaij R, Abellan Beteta C, Adeva B, Adinolfi M, Adrover C, Affolder A, Ajaltouni Z, Albrecht J, Alessio F, Alexander M, Alkhazov G, Alvarez Cartelle P, Alves A A, Amato S, Amhis Y, Anderson J, Appleby R B, Aquines Gutierrez O, Archilli F, Arrabito L, Artamonov A, Artuso M, Aslanides E, Auriemma G, Bachmann S, Back J J, Bailey D S, Balagura V, Baldini W, Barlow R J, Barschel C, Barsuk S, Barter W, Bates A, Bauer C, Bauer Th, Bay A, Bediaga I, Belogurov S, Belous K, Belyaev I, Ben-Haim E, Benayoun M, Bencivenni G, Benson S, Benton J, Bernet R, Bettler M-O, van Beuzekom M, Bien A, Bifani S, Bird T, Bizzeti A, Bjørnstad P M, Blake T, Blanc F, Blanks C, Blouw J, Blusk S, Bobrov A, Bocci V, Bondar A, Bondar N, Bonivento W, Borghi S, Borgia A, Bowcock T J V, Bozzi C, Brambach T, van den Brand J, Bressieux J, Brett D, Britsch M, Britton T, Brook N H, Brown H, de Bruyn K, Büchler-Germann A, Burducea I, Bursche A, Buytaert J, Cadeddu S, Callot O, Calvi M, Calvo Gomez M, Camboni A, Campana P, Carbone A, Carboni G, Cardinale R, Cardini A, Carson L, Carvalho Akiba K, Casse G, Cattaneo M, Cauet Ch, Charles M, Charpentier Ph, Chiapolini N, Ciba K, Cid Vidal X, Ciezarek G, Clarke P E L, Clemencic M, Cliff H V, Closier J, Coca C, Coco V, Cogan J, Collins P, Comerma-Montells A, Constantin F, Contu A, Cook A, Coombes M, Corti G, Couturier B, Cowan G A, Currie R, D'Ambrosio C, David P, David P N Y, De Bonis I, De Capua S, De Cian M, De Lorenzi F, De Miranda J M, De Paula L, De Simone P, Decamp D, Deckenhoff M, Degaudenzi H, Del Buono L, Deplano C, Derkach D, Deschamps O, Dettori F, Dickens J, Dijkstra H, Diniz Batista P, Domingo Bonal F, Donleavy S, Dordei F, Dosil Suárez A, Dossett D, Dovbnya A, Dupertuis F, Dzhelyadin R, Dziurda A, Easo S, Egede U, Egorychev V, Eidelman S, van Eijk D, Eisele F, Eisenhardt S, Ekelhof R, Eklund L, Elsasser Ch, Elsby D, Esperante Pereira D, Falabella A, Fanchini E, Färber C, Fardell G, Farinelli C, Farry S, Fave V, Fernandez Albor V, Ferro-Luzzi M, Filippov S, Fitzpatrick C, Fontana M, Fontanelli F, Forty R, Francisco O, Frank M, Frei C, Frosini M, Furcas S, Gallas Torreira A, Galli D, Gandelman M, Gandini P, Gao Y, Garnier J-C, Garofoli J, Garra Tico J, Garrido L, Gascon D, Gaspar C, Gauld R, Gauvin N, Gersabeck M, Gershon T, Ghez Ph, Gibson V, Gligorov V V, Göbel C, Golubkov D, Golutvin A, Gomes A, Gordon H, Grabalosa Gándara M, Graciani Diaz R, Granado Cardoso L A, Graugés E, Graziani G, Grecu A, Greening E, Gregson S, Gui B, Gushchin E, Guz Yu, Gys T, Hadjivasiliou C, Haefeli G, Haen C, Haines S C, Hampson T, Hansmann-Menzemer S, Harji R, Harnew N, Harrison J, Harrison P F, Hartmann T, He J, Heijne V, Hennessy K, Henrard P, Hernando Morata J A, van Herwijnen E, Hicks E, Holubyev K, Hopchev P, Hulsbergen W, Hunt P, Huse T, Huston R S, Hutchcroft D, Hynds D, Iakovenko V, Ilten P, Imong J, Jacobsson R, Jaeger A, Jahjah Hussein M, Jans E, Jansen F, Jaton P, Jean-Marie B, Jing F, John M, Johnson D, Jones C R, Jost B, Kaballo M, Kandybei S, Karacson M, Karbach T M, Keaveney J, Kenyon I R, Kerzel U, Ketel T, Keune A, Khanji B, Kim Y M, Knecht M, Koopman R F, Koppenburg P, Korolev M, Kozlinskiy A, Kravchuk L, Kreplin K, Kreps M, Krocker G, Krokovny P, Kruse F, Kruzelecki K, Kucharczyk M, Kvaratskheliya T, La Thi V N, Lacarrere D, Lafferty G, Lai A, Lambert D, Lambert R W, Lanciotti E, Lanfranchi G, Langenbruch C, Latham T, Lazzeroni C, Le Gac R, van Leerdam J, Lees J-P, Lefèvre R, Leflat A, Lefrançois J, Leroy O, Lesiak T, Li L, Li Gioi L, Lieng M, Liles M, Lindner R, Linn C, Liu B, Liu G, von Loeben J, Lopes J H, Lopez Asamar E, Lopez-March N, Lu H, Luisier J, Mac Raighne A, Machefert F, Machikhiliyan I V, Maciuc F, Maev O, Magnin J, Malde S, Mamunur R M D, Manca G, Mancinelli G, Mangiafave N, Marconi U, Märki R, Marks J, Martellotti G, Martens A, Martin L, Martín Sánchez A, Martinez Santos D, Massafferri A, Mathe Z, Matteuzzi C, Matveev M, Maurice E, Maynard B, Mazurov A, McGregor G, McNulty R, Meissner M, Merk M, Merkel J, Messi R, Miglioranzi S, Milanes D A, Minard M-N, Molina Rodriguez J, Monteil S, Moran D, Morawski P, Mountain R, Mous I, Muheim F, Müller K, Muresan R, Muryn B, Muster B, Musy M, Mylroie-Smith J, Naik P, Nakada T, Nandakumar R, Nasteva I, Nedos M, Needham M, Neufeld N, Nguyen A D, Nguyen-Mau C, Nicol M, Niess V, Nikitin N, Nomerotski A, Novoselov A, Oblakowska-Mucha A, Obraztsov V, Oggero S, Ogilvy S, Okhrimenko O, Oldeman R, Orlandea M, Otalora Goicochea J M, Owen P, Pal K, Palacios J, Palano A, Palutan M, Panman J, Papanestis A, Pappagallo M, Parkes C, Parkinson C J, Passaleva G, Patel G D, Patel M, Paterson S K, Patrick G N, Patrignani C, Pavel-Nicorescu C, Pazos Alvarez A, Pellegrino A, Penso G, Pepe Altarelli M, Perazzini S, Perego D L, Perez Trigo E, Pérez-Calero Yzquierdo A, Perret P, Perrin-Terrin M, Pessina G, Petrella A, Petrolini A, Phan A, Picatoste Olloqui E, Pie Valls B, Pietrzyk B, Pilař T, Pinci D, Plackett R, Playfer S, Plo Casasus M, Polok G, Poluektov A, Polycarpo E, Popov D, Popovici B, Potterat C, Powell A, Prisciandaro J, Pugatch V, Puig Navarro A, Qian W, Rademacker J H, Rakotomiaramanana B, Rangel M S, Raniuk I, Raven G, Redford S, Reid M M, Dos Reis A C, Ricciardi S, Richards A, Rinnert K, Roa Romero D A, Robbe P, Rodrigues E, Rodrigues F, Rodriguez Perez P, Rogers G J, Roiser S, Romanovsky V, Rosello M, Rouvinet J, Ruf T, Ruiz H, Sabatino G, Saborido Silva J J, Sagidova N, Sail P, Saitta B, Salzmann C, Sannino M, Santacesaria R, Santamarina Rios C, Santinelli R, Santovetti E, Sapunov M, Sarti A, Satriano C, Satta A, Savrie M, Savrina D, Schaack P, Schiller M, Schleich S, Schlupp M, Schmelling M, Schmidt B, Schneider O, Schopper A, Schune M-H, Schwemmer R, Sciascia B, Sciubba A, Seco M, Semennikov A, Senderowska K, Sepp I, Serra N, Serrano J, Seyfert P, Shapkin M, Shapoval I, Shatalov P, Shcheglov Y, Shears T, Shekhtman L, Shevchenko O, Shevchenko V, Shires A, Silva Coutinho R, Skwarnicki T, Smith N A, Smith E, Sobczak K, Soler F J P, Solomin A, Soomro F, Souza De Paula B, Spaan B, Sparkes A, Spradlin P, Stagni F, Stahl S, Steinkamp O, Stoica S, Stone S, Storaci B, Straticiuc M, Straumann U, Subbiah V K, Swientek S, Szczekowski M, Szczypka P, Szumlak T, T'Jampens S, Teodorescu E, Teubert F, Thomas C, Thomas E, van Tilburg J, Tisserand V, Tobin M, Topp-Joergensen S, Torr N, Tournefier E, Tourneur S, Tran M T, Tsaregorodtsev A, Tuning N, Ubeda Garcia M, Ukleja A, Urquijo P, Uwer U, Vagnoni V, Valenti G, Vazquez Gomez R, Vazquez Regueiro P, Vecchi S, Velthuis J J, Veltri M, Viaud B, Videau I, Vieira D, Vilasis-Cardona X, Visniakov J, Vollhardt A, Volyanskyy D, Voong D, Vorobyev A, Voss H, Wandernoth S, Wang J, Ward D R, Watson N K, Webber A D, Websdale D, Whitehead M, Wiedner D, Wiggers L, Wilkinson G, Williams M P, Williams M, Wilson F F, Wishahi J, Witek M, Witzeling W, Wotton S A, Wyllie K, Xie Y, Xing F, Xing Z, Yang Z, Young R, Yushchenko O, Zangoli M, Zavertyaev M, Zhang F, Zhang L, Zhang W C, Zhang Y, Zhelezov A, Zhong L, Zvyagin A
机构信息
Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
Universitat de Barcelona, Barcelona, Spain.
出版信息
Eur Phys J C Part Fields. 2012;72(8):2100. doi: 10.1140/epjc/s10052-012-2100-4. Epub 2012 Aug 10.
The differential cross-section for the inclusive production of (2) mesons in collisions at [Formula: see text] has been measured with the LHCb detector. The data sample corresponds to an integrated luminosity of 36 pb. The (2) mesons are reconstructed in the decay channels (2)→ and (2)→/, with the / meson decaying into two muons. Results are presented both for promptly produced (2) mesons and for those originating from -hadron decays. In the kinematic range ((2))≤16 GeV/ and 2<((2))≤4.5 we measure [Formula: see text] where the last uncertainty on the prompt cross-section is due to the unknown (2) polarization. Recent QCD calculations are found to be in good agreement with our measurements. Combining the present result with the LHCb / measurements we determine the inclusive branching fraction [Formula: see text] where the last uncertainty is due to the [Formula: see text], [Formula: see text] and [Formula: see text] branching fraction uncertainties.
利用大型强子对撞机底夸克（LHCb）探测器测量了在[公式：见原文]碰撞中包含（2）介子的微分截面。数据样本对应的积分亮度为36皮靶。（2）介子在衰变通道（2）→和（2）→/中重建，其中/介子衰变成两个μ子。给出了即时产生的（2）介子以及源自重子衰变的（2）介子的结果。在运动学范围（（2））≤16 GeV/且2<（（2））≤4.5内，我们测量了[公式：见原文]，其中即时截面的最后一个不确定度是由于未知的（2）极化。发现最近的量子色动力学（QCD）计算与我们的测量结果吻合良好。将当前结果与LHCb /测量结果相结合，我们确定了包含分支比[公式：见原文]，其中最后一个不确定度是由于[公式：见原文]、[公式：见原文]和[公式：见原文]分支比的不确定度。
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