Camboni, AlessandroComerma-Montells, A.Garrido Beltrán, LluísGraciani Díaz, RicardoGraugés Pous, EugeniPicatoste Olloqui, EduardoPotterat, CédricRives Molina, Vicente JoséRuiz, Hugo (Ruiz Pérez)LHCb Collaboration2022-05-172022-05-172014-051434-6044https://hdl.handle.net/2445/185684The lifetime of the B+ c meson is measured using semileptonic decays having a J/ψ meson and a muon in the final state. The data, corresponding to an integrated luminosity of 2 fb−1, are collected by the LHCb detector in pp collisions at a centre-of-mass energy of 8 TeV. The measured lifetime is τ = 509 ± 8 ± 12 fs, where the first uncertainty is statistical and the second is systematic.15 p.application/pdfengcc-by (c) Camboni, Alessandro et al., 2014https://creativecommons.org/licenses/by/4.0/HadronsGran Col·lisionador d'HadronsFísica de partículesExperimentsHadronsLarge Hadron Collider (France and Switzerland)Particle physicsExperimentsinfo:eu-repo/semantics/article6457692022-05-17info:eu-repo/semantics/openAccess