2026-04-13T19:06:01Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1312072025-12-05T16:49:42Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917

urn:hdl:2445/131207 Measurement of the ratio of B+c branching fractions to J/ψπ+ and J/ψμ+νμ final states Badalov, Alexey Calvo Gómez, Míriam Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Vilasis-Cardona, Xavier LHCb Collaboration Física de partícules Gran Col·lisionador d'Hadrons Col·lisions (Física nuclear) Particle physics Large Hadron Collider (France and Switzerland) Collisions (Nuclear physics) The first measurement that relates semileptonic and hadronic decay rates of the B + c meson is performed using proton-proton collision data corresponding to 1.0     fb − 1 of integrated luminosity collected with the LHCb detector. The measured value of the ratio of branching fractions, B ( B + c → J / ψ π + ) / B ( B + c → J / ψ μ + ν μ ) = 0.0469 ± 0.0028 ( stat ) ± 0.0046 ( syst ) , is at the lower end of available theoretical predictions. 2019-04-02T12:17:00Z 2019-04-02T12:17:00Z 2014-08-27 2019-04-02T12:17:01Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.90.032009 Physical Review D, 2014, vol. 90, num. 3, p. 032009 https://doi.org/10.1103/PhysRevD.90.032009 cc by (c) CERN; LHCb Collaboration, 2014 http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess American Physical Society Articles publicats en revistes (Física Quàntica i Astrofísica)