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Measurement of B meson production cross-sections in proton-proton collisions at TeV Abellan Beteta, Carlos Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Oyanguren, A. Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Potterat, Cédric Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Ruiz Valls, Pablo Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration Hadrons Col·lisions (Física nuclear) Mesons (Física nuclear) Hadrons Collisions (Nuclear physics) Mesons (Nuclear physics) The production cross-sections of B mesons are measured in pp collisions at a centre-of-mass energy of 7 TeV, using data collected with the LHCb detector corresponding to a integrated luminosity of 0.36 fb−1 . The B+, B0 and B0 s mesons are reconstructed in the exclusive decays B+ → J/ψ K+, B0 → J/ψ K∗0 and B0 s → J/ψ φ, with J/ψ → µ +µ −, K∗0 → K+π − and φ → K+K−. The differential cross-sections are measured as functions of B meson transverse momentum pT and rapidity y, in the range 0 < pT < 40 GeV/c and 2.0 < y < 4.5. The integrated cross-sections in the same pT and y ranges, including charge-conjugate states, are measured to be σ(pp → B+ + X) = 38.9 ± 0.3 (stat.) ± 2.5 (syst.) ± 1.3 (norm.) µb, σ(pp → B0 + X) = 38.1 ± 0.6 (stat.) ± 3.7 (syst.) ± 4.7 (norm.) µb, σ(pp → B0 s + X) = 10.5 ± 0.2 (stat.) ± 0.8 (syst.) ± 1.0 (norm.) µb, where the third uncertainty arises from the pre-existing branching fraction measurements. 2023-03-08T18:47:35Z 2023-03-08T18:47:35Z 2013-08 2023-03-08T18:47:35Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1126-6708 https://hdl.handle.net/2445/194896 629006 eng Reproducció del document publicat a: https://doi.org/10.1007/JHEP08(2013)117 Journal of High Energy Physics, 2013, vol. 8, num. 117, p. 1-17 https://doi.org/10.1007/JHEP08(2013)117 cc-by (c) Abellan Beteta, Carlos et al., 2013 http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess 17 p. application/pdf Springer Verlag Articles publicats en revistes (Física Quàntica i Astrofísica)