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.| File | Dimensione | Formato | |
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JHEP04(2024)111.pdf
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