LHCb CollaborationAlfonso Albero, AlejandroCalvo Gómez, MíriamCamboni, AlessandroCoquereau, SamuelFernandez Tenllado Arribas, J.M.García Moreno, PaulaGarrido Beltrán, LluísGascón Fora, DavidGironella Gironell, PereGolobardes, ElisabetGómez Fernández, S.Graciani Díaz, RicardoGraugés Pous, EugeniManera Escalero, R.Marin Benito, CarlaMauricio, J.Sánchez Gonzalo, DavidValls Canudas, NúriaVilasis-Cardona, Xavier2022-05-032022-05-032020-11-191126-6708https://hdl.handle.net/2445/185287A search for the doubly heavy Ξ0bc baryon using its decay to the D0pK- final state is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the LHCb experiment between 2016 and 2018, corresponding to an integrated luminosity of 5.4 fb−1. No significant signal is found in the invariant mass range from 6.7 to 7.2 GeV/c2. Upper limits are set at 95% credibility level on the ratio of the Ξ0bc production cross-section times its branching fraction to D0pK− relative to that of the Λ0b→D0pK− decay. The limits are set as a function of the Ξ0bc mass and lifetime hypotheses, in the rapidity range from 2.0 to 4.5 and in the transverse momentum region from 5 to 25 GeV/c. Upper limits range from 1.7 × 10−2 to 3.0 × 10−1 for the considered Ξ0bc mass and lifetime hypotheses.21 p.application/pdfengcc-by (c) LHCb Collaboration et al., 2020https://creativecommons.org/licenses/by/4.0/ExperimentsFísica de partículesGran Col·lisionador d'HadronsHadronsExperimentsParticle physicsLarge Hadron Collider (France and Switzerland)Hadronsinfo:eu-repo/semantics/article7102322022-05-03info:eu-repo/semantics/openAccess