Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/222021
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dc.contributor.authorGarcia Moreno, Paula-
dc.contributor.authorGarrido Beltrán, Lluís-
dc.contributor.authorGironella Gironell, Pere-
dc.contributor.authorGomez Fernandez, Sergio-
dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorLobo Salvia, Aniol-
dc.contributor.authorLópez Huertas, Albert-
dc.contributor.authorManera Escalero, Rafel-
dc.contributor.authorMarin Benito, Carla-
dc.contributor.authorMauricio Ferre, Joan-
dc.contributor.authorAlfonso Albero, Alejandro-
dc.contributor.authorVazquez Gomez, Ricardo-
dc.contributor.authorLHCb Collaboration-
dc.date.accessioned2025-07-04T15:19:50Z-
dc.date.available2025-07-04T15:19:50Z-
dc.date.issued2023-
dc.identifier.issn1126-6708-
dc.identifier.urihttps://hdl.handle.net/2445/222021-
dc.description.abstractAbstract: The B+ → Jψη0K+ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb−1 . The branching fraction of this decay is measured relative to the known branching fraction of the B+ → ψ(2S)K+ decay and found to be B(B+ → Jψη0K+) B(B+ → ψ(2S)K+) = (4.91 ± 0.47 ± 0.29 ± 0.07) × 10−2 , where the first uncertainty is statistical, the second is systematic and the third is related to external branching fractions. A first look at the J/ψη0 mass distribution is performed and no signal of intermediate resonances is observed.-
dc.format.extent27 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherSpringer Verlag-
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1007/JHEP08(2023)174-
dc.relation.ispartofJournal of High Energy Physics, 2023, vol. 2023, num.174-
dc.relation.urihttps://doi.org/10.1007/JHEP08(2023)174-
dc.rightscc-by (c) Aaij, R. et al., 2023-
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/-
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationFísica de partícules-
dc.subject.classificationHadrons-
dc.subject.otherParticle physics-
dc.subject.otherHadrons-
dc.titleObservation of the B+ → Jψη0K+ decay-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec756581-
dc.date.updated2025-07-04T15:19:50Z-
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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