Measurement off f(s)/f(u) Variation with Proton-Proton Collision Energy and B-Meson Kinematics

Vista senzilla d'ítem
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.date.updated2021-03-15T10:51:19Z
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.identifier.idgrec706229
dc.identifier.issn0031-9007
dc.identifier.urihttps://hdl.handle.net/2445/175063
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.accessRightsinfo:eu-repo/semantics/openAccess
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

Fitxers

Paquet original

Mostrant 1 - 1 de 1
Miniatura
Nom:
706229.pdf
Mida:
516.36 KB
Format:
Adobe Portable Document Format
Descarregar

Col·leccions

Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))