2026-04-13T01:10:29Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/2220162025-11-21T05:25:42Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917

00925njm 22002777a 4500 dc Comerma Montells, Albert author Garcia Moreno, Paula author Garrido Beltrán, Lluís author Gioventù, Alessandra author Gironella Gironell, Pere author Gomez Fernandez, Sergio author Graugés Pous, Eugeni author Lobo Salvia, Aniol author López Huertas, Albert author Manera Escalero, Rafel author Marin Benito, Carla author Mauricio Ferre, Joan author Alfonso Albero, Alejandro author Vazquez Gomez, Ricardo author LHCb Collaboration author 2025-07-04T14:50:26Z 2025-07-04T14:50:26Z 2024 2025-07-04T14:50:26Z  The production of ψ(2S) mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of √ sNN = 8.16 TeV is studied with the LHCb detector using data corresponding to an integrated luminosity of 34 nb−1 . The prompt and nonprompt ψ(2S) production cross-sections and the ratio of the ψ(2S) to J/ψ cross-section are measured as a function of the meson transverse momentum and rapidity in the nucleon-nucleon centre-ofmass frame, together with forward-to-backward ratios and nuclear modifcation factors. The production of prompt ψ(2S) is observed to be more suppressed compared to pp collisions than the prompt J/ψ production, while the nonprompt productions have similar suppression factors. Cromodinàmica quàntica Hadrons Física de partícules Quantum chromodynamics Hadrons Particle physics Prompt and nonprompt ψ(2S) production in pPb collisions at sNN = 8.16 TeV