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dc.contributor.authorAlfonso Albero, Alejandro-
dc.contributor.authorCoquereau, Samuel-
dc.contributor.authorFernandez, G.-
dc.contributor.authorGarrido Beltrán, Lluís-
dc.contributor.authorGascón Fora, David-
dc.contributor.authorGraciani Díaz, Ricardo-
dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorMarin Benito, Carla-
dc.contributor.authorPicatoste Olloqui, Eduardo-
dc.contributor.authorMolina, V. R.-
dc.contributor.authorCalvo Gomez, M.-
dc.contributor.authorCamboni, Alessandro-
dc.contributor.authorGironella Gironell, Pere-
dc.contributor.authorVazquez Gomez, R.-
dc.contributor.authorLCHb Collaboration-
dc.description.abstractThe production of B ± mesons is studied in pp collisions at centre-of-mass energies of 7 and 13 TeV, using B ± → J/ ψ K ± decays and data samples corresponding to 1.0 fb-1 and 0.3 fb-1, respectively. The production cross-sections summed over both charges and integrated over the transverse momentum range 0 < p T < 40 GeV/ c and the rapidity range 2.0 < y < 4.5 are measured to be σ ( pp\to {B}^{± }X,√{s}=7 TeV)=43.0± 0.2± 2.5± 1.7 μ b, σ ( pp\to {B}^{± }X,√{s}=13 TeV)=86.6± 0.5± 5.4± 3.4 μ b, where the first uncertainties are statistical, the second are systematic, and the third are due to the limited knowledge of the B ± → J/ ψ K ± branching fraction. The ratio of the cross-section at 13 TeV to that at 7 TeV is determined to be 2.02 ± 0.02 (stat) ± 0.12 (syst). Differential cross-sections are also reported as functions of p T and y. All results are in agreement with theoretical calculations based on the state-of-art fixed next-to-leading order quantum chromodynamics-
dc.format.extent26 p.-
dc.publisherSpringer Verlag-
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofJournal of High Energy Physics, 2017, vol. 2017, num. 26, p. 25-51-
dc.rightscc-by (c) Alfonso Albero, Alejandro et al., 2017-
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationGran Col·lisionador d'Hadrons-
dc.subject.classificationFísica de partícules-
dc.subject.otherLarge Hadron Collider (France and Switzerland)-
dc.subject.otherParticle physics-
dc.titleMeasurement of the B ± production cross-section in pp collisions at √{s}=7 and 13 TeV-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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