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Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/175063
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dc.contributor.authorAlfonso Albero, Alejandro-
dc.contributor.authorCalvo Gómez, Míriam-
dc.contributor.authorCamboni, Alessandro-
dc.contributor.authorCoquereau, Samuel-
dc.contributor.authorGarrido Beltrán, Lluís-
dc.contributor.authorGascón Fora, David-
dc.contributor.authorGironella Gironell, Pere-
dc.contributor.authorGraciani Díaz, Ricardo-
dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorVilasis-Cardona, Xavier-
dc.contributor.authorGarcía Martín, L. M.-
dc.contributor.authorHenry, L.-
dc.contributor.authorMartínez Vidal, F.-
dc.contributor.authorOyanguren Campos, Arantza de-
dc.contributor.authorRemon Alepuz, C.-
dc.contributor.authorRuiz Vidal, J.-
dc.contributor.authorSánchez Mayordomo, C.-
dc.contributor.authorLHCb Collaboration-
dc.date.accessioned2021-03-15T10:51:19Z-
dc.date.available2021-03-15T10:51:19Z-
dc.date.issued2020-03-26-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/2445/175063-
dc.description.abstractThe ratio of the B0s and B+ fragmentation fractions fs and fu is studied with B0s→J/ψϕ and B+→J/ψK+ decays using data collected by the LHCb experiment in proton-proton collisions at 7, 8, and 13 TeV center-of-mass energies. The analysis is performed in bins of B-meson momentum, longitudinal momentum, transverse momentum, pseudorapidity, and rapidity. The fragmentation-fraction ratio fs/fu is observed to depend on the B-meson transverse momentum with a significance of 6.0σ. This dependency is driven by the 13 TeV sample (8.7σ), while the results for the other collision energies are not significant when considered separately. Furthermore, the results show a 4.8σ evidence for an increase of fs/fu as a function of collision energy.-
dc.format.extent11 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Physical Society-
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.124.122002-
dc.relation.ispartofPhysical Review Letters, 2020, vol. 124, num. 12, p. 122002-
dc.relation.urihttps://doi.org/10.1103/PhysRevLett.124.122002-
dc.rightscc-by (c) Aaij, R. et al., 2020-
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationCinemàtica-
dc.subject.classificationProtons-
dc.subject.classificationMesons (Física nuclear)-
dc.subject.otherKinematics-
dc.subject.otherProtons-
dc.subject.otherMesons (Nuclear physics)-
dc.titleMeasurement off f(s)/f(u) Variation with Proton-Proton Collision Energy and B-Meson Kinematics-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec706229-
dc.date.updated2021-03-15T10:51:19Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

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