The production of Psi(2S) mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of sqrt{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 Psi(2S) production cross-sections and the ratio of the Psi(2S) to J/Psi cross-section are measured as a function of the meson transverse momentum and rapidity in the nucleon-nucleon centre-of-mass frame, together with forward-to-backward ratios and nuclear modification factors. The production of prompt Psi(2S) is observed to be more suppressed compared to pp collisions than the prompt J/Psi production, while the nonprompt productions have similar suppression factors.

Prompt and nonprompt Psi(2S) production in pPb collisions at sqrt{sNN} = 8.16 TeV

Bassi G.
Membro del Collaboration Group
;
Kleijne N.
Membro del Collaboration Group
;
Morello M. J.
Membro del Collaboration Group
;
Passaro D.
Membro del Collaboration Group
;
Pica L.
Membro del Collaboration Group
;
Ribatti R.
Membro del Collaboration Group
;
Riccardi D.
Membro del Collaboration Group
;
2024

Abstract

The production of Psi(2S) mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of sqrt{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 Psi(2S) production cross-sections and the ratio of the Psi(2S) to J/Psi cross-section are measured as a function of the meson transverse momentum and rapidity in the nucleon-nucleon centre-of-mass frame, together with forward-to-backward ratios and nuclear modification factors. The production of prompt Psi(2S) is observed to be more suppressed compared to pp collisions than the prompt J/Psi production, while the nonprompt productions have similar suppression factors.
Prompt and nonprompt ψ(2S) production in pPb collisions at sNN = 8.16 TeV
2024
Settore FIS/01 - Fisica Sperimentale
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
Hadron-Hadron Scattering; Heavy Quark Production; Particle and Resonance Production; QCD; Matrix-element; Helac-onia; Suppression; Generator; Decay
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/154028
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