Measurement of J/Ψ production in pp collisions at $\sqrt{s}=7$ TeV
R. AaijNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsB. AdevaUniversidad de Santiago de Compostela, Santiago de Compostela, SpainM. AdinolfiH.H. Wills Physics Laboratory, University of Bristol, Bristol, UKC. AdroverCPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, FranceTony AffolderOliver Lodge Laboratory, University of Liverpool, Liverpool, UKZ. AjaltouniUniversité Clermont AuvergneJ. AlbrechtEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandF. AlessioCPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, FranceM. AlexanderSchool of Physics and Astronomy, University of Glasgow, Glasgow, UKP. Álvarez CartelleUniversidad de Santiago de Compostela, Santiago de Compostela, SpainA. A. AlvesSezione INFN di Roma Sapienza, Roma, ItalyS. AmatoUniversidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, BrazilY. AmhisEcole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandJ. AmoraalNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsJ. AndersonPhysik-Institut, Universität Zürich, Zürich, SwitzerlandR. B. ApplebySchool of Physics and Astronomy, University of Manchester, Manchester, UKO. Aquines GutierrezMax-Planck-Institut für Kernphysik (MPIK), Heidelberg, GermanyL. ArrabitoCC-IN2P3, CNRS/IN2P3, Lyon-Villeurbanne, FranceM. ArtusoSyracuse University, Syracuse, NY, USAE. AslanidesCPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, FranceG. AuriemmaSezione INFN di Roma Sapienza, Roma, ItalyS. BachmannPhysikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyD. S. BaileySchool of Physics and Astronomy, University of Manchester, Manchester, UKV. BalaguraInstitute of Theoretical and Experimental Physics (ITEP), Moscow, RussiaW. BaldiniSezione INFN di Ferrara, Ferrara, ItalyR. J. BarlowSchool of Physics and Astronomy, University of Manchester, Manchester, UKC. BarschelEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandS. BarsukLAL, Université Paris-Sud, CNRS/IN2P3, Orsay, FranceA. BatesSchool of Physics and Astronomy, University of Glasgow, Glasgow, UKC. BauerMax-Planck-Institut für Kernphysik (MPIK), Heidelberg, GermanyTh. BauerNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsA. BayEcole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandI. BediagaCentro Brasileiro de Pesquisas Físicas (CBPF), Rio de Janeiro, BrazilK. BelousInstitute for High Energy Physics (IHEP), Protvino, RussiaI. BelyaevInstitute of Theoretical and Experimental Physics (ITEP), Moscow, RussiaE. Ben-HaimLPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, FranceM. BenayounLPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris, FranceG. BencivenniLaboratori Nazionali dell'INFN di Frascati, Frascati, ItalyR. BernetPhysik-Institut, Universität Zürich, Zürich, SwitzerlandM.-O. BettlerSezione INFN di Firenze, Firenze, ItalyM. van BeuzekomNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsS. BifaniSchool of Physics, University College Dublin, Dublin, IrelandA. BizzetiSezione INFN di Firenze, Firenze, ItalyP. M. BjørnstadSchool of Physics and Astronomy, University of Manchester, Manchester, UKT. BlakeImperial College London, London, UKF. BlancEcole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandC. BlanksImperial College London, London, UKJ. BlouwPhysikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyS. BluskSyracuse University, Syracuse, NY, USAA. BobrovBudker Institute of Nuclear Physics (BINP), Novosibirsk, RussiaV. BocciSezione INFN di Roma Sapienza, Roma, ItalyA. BondarPetersburg Nuclear Physics Institute (PNPI), Gatchina, RussiaN. BondarPetersburg Nuclear Physics Institute (PNPI), Gatchina, RussiaW. BoniventoSezione INFN di Cagliari, Cagliari, ItalyS. BorghiSchool of Physics and Astronomy, University of Glasgow, Glasgow, UKA. BorgiaSyracuse University, Syracuse, NY, USAE. BosNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsT. J. V. BowcockOliver Lodge Laboratory, University of Liverpool, Liverpool, UKC. BozziSezione INFN di Ferrara, Ferrara, ItalyT. BrambachFakultät Physik, Technische Universität Dortmund, Dortmund, GermanyJ. F. J. van den BrandNikhef National Institute for Subatomic Physics and Vrije Universiteit, Amsterdam, NetherlandsJ. BressieuxEcole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, SwitzerlandS. BrisbaneDepartment of Physics, University of Oxford, Oxford, UKM. BritschMax-Planck-Institut für Kernphysik (MPIK), Heidelberg, GermanyT. BrittonSyracuse University, Syracuse, NY, USAN. H. BrookH.H. Wills Physics Laboratory, University of Bristol, Bristol, UKH. BrownOliver Lodge Laboratory, University of Liverpool, Liverpool, UKA. Büchler-GermannPhysik-Institut, Universität Zürich, Zürich, SwitzerlandA. BurschePhysik-Institut, Universität Zürich, Zürich, SwitzerlandJ. BuytaertEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandS. CadedduSezione INFN di Cagliari, Cagliari, ItalyJ.M. Caicedo CarvajalEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandO. CallotLAL, Université Paris-Sud, CNRS/IN2P3, Orsay, FranceM. CalviSezione INFN di Milano Bicocca, Milano, ItalyM. Calvo GomezUniversitat de Barcelona, Barcelona, SpainA. CamboniUniversitat de Barcelona, Barcelona, SpainP. CampanaLaboratori Nazionali dell'INFN di Frascati, Frascati, ItalyA. CarboneSezione INFN di Bologna, Bologna, ItalyG. CarboniSezione INFN di Roma Tor Vergata, Roma, ItalyR. CardinaleSezione INFN di Genova, Genova, ItalyA. CardiniSezione INFN di Cagliari, Cagliari, ItalyL. CarsonUniversidad de Santiago de Compostela, Santiago de Compostela, SpainK. Carvalho AkibaNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsG. CasseOliver Lodge Laboratory, University of Liverpool, Liverpool, UKM. CattaneoEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandM. CharlesDepartment of Physics, University of Oxford, Oxford, UKPh. CharpentierEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandN. ChiapoliniPhysik-Institut, Universität Zürich, Zürich, SwitzerlandX. Cid VidalUniversidad de Santiago de Compostela, Santiago de Compostela, SpainP. J. ClarkSchool of Physics and Astronomy, University of Edinburgh, Edinburgh, UKP. E. L. ClarkeSchool of Physics and Astronomy, University of Edinburgh, Edinburgh, UKH. V. CliffCavendish Laboratory, University of Cambridge, Cambridge, UKJ. ClosierEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandC. CocaHoria Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, RomaniaV. CocoNikhef National Institute for Subatomic Physics, Amsterdam, NetherlandsJ. CoganCPPM, Aix-Marseille Université, CNRS/IN2P3, Marseille, FranceP. CollinsEuropean Organization for Nuclear Research (CERN), Geneva, SwitzerlandF. ConstantinHoria Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, RomaniaG. ContiEcole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
2011en
ABI
Аннотация
The production of mesons in proton–proton collisions at is studied with the LHCb detector at the LHC. The differential cross-section for prompt production is measured as a function of the transverse momentum pT and rapidity y in the fiducial region and y∈[2.0;4.5]. The differential cross-section and fraction of from b-hadron decays are also measured in the same pT and y ranges. The analysis is based on a data sample corresponding to an integrated luminosity of 5.2 pb−1. The measured cross-sections integrated over the fiducial region are production and from b-hadron decays, where the first uncertainty is statistical and the second systematic. The prompt production cross-section is obtained assuming no polarisation and the third error indicates the acceptance uncertainty due to this assumption.
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