Alfonso Albero, AlejandroCalvo Gómez, MíriamCamboni, AlessandroCoquereau, SamuelGarrido Beltrán, LluísGascón Fora, DavidGraciani Díaz, RicardoGraugés Pous, EugeniMarin Benito, CarlaLHCb Collaboration2022-05-092022-05-0920182470-0010https://hdl.handle.net/2445/185438Investigations of the existence of pentaquark states containing a single b (anti)quark decaying weakly into four specific final states J/ψKþπ−p, J/ψK−π−p, J/ψK−πþp, and J/ψϕð1020Þp are reported. The data sample corresponds to an integrated luminosity of 3.0 fb−1 in 7 and 8 TeV pp collisions acquired with the LHCb detector. Signals are not observed and upper limits are set on the product of the production cross section times branching fraction with respect to that of the Λ0 b.31 p.application/pdfeng(c) American Physical Society, 2018HadronsGran Col·lisionador d'HadronsFísica de partículesExperimentsHadronsLarge Hadron Collider (France and Switzerland)Particle physicsExperimentsinfo:eu-repo/semantics/article6847262022-05-09info:eu-repo/semantics/openAccess