The production of inclusive, prompt and non-prompt J/ψ was studied for the first time at midrapidity (−1.37 < ycms < 0.43) in p-Pb collisions at √sNN = 8.16 TeV with the ALICE detector at the LHC. The inclusive J/ψ mesons were reconstructed in the dielectron decay channel in the transverse momentum (pT) interval 0 < pT < 14 GeV/c and the prompt and non-prompt contributions were separated on a statistical basis for pT > 2 GeV/c. The study of the J/ψ mesons in the dielectron channel used for the first time in ALICE online single-electron triggers from the Transition Radiation Detector, providing a data sample corresponding to an integrated luminosity of 689 ± 13 μb−1. The proton-proton reference cross section for inclusive J/ψ was obtained based on interpolations of measured data at different centre-of-mass energies and a universal function describing the pT-differential J/ψ production cross sections. The pT-differential nuclear modification factors RpPb of inclusive, prompt, and non-prompt J/ψ are consistent with unity and described by theoretical models implementing only nuclear shadowing.

S. Acharya, D. Adamov??, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, et al. (2023). J/ψ production at midrapidity in p-Pb collisions at √sNN=8.16 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2023(7), 1-36 [10.1007/jhep07(2023)137].

J/ψ production at midrapidity in p-Pb collisions at √sNN=8.16 TeV

N. Agrawal;A. Alici;S. Arcelli;F. Bellini;F. Carnesecchi;M. Colocci;F. Ercolessi;M. Giacalone;N. Jacazio;G. Malfattore;N. Rubini;G. Scioli;S. Strazzi;
2023

Abstract

The production of inclusive, prompt and non-prompt J/ψ was studied for the first time at midrapidity (−1.37 < ycms < 0.43) in p-Pb collisions at √sNN = 8.16 TeV with the ALICE detector at the LHC. The inclusive J/ψ mesons were reconstructed in the dielectron decay channel in the transverse momentum (pT) interval 0 < pT < 14 GeV/c and the prompt and non-prompt contributions were separated on a statistical basis for pT > 2 GeV/c. The study of the J/ψ mesons in the dielectron channel used for the first time in ALICE online single-electron triggers from the Transition Radiation Detector, providing a data sample corresponding to an integrated luminosity of 689 ± 13 μb−1. The proton-proton reference cross section for inclusive J/ψ was obtained based on interpolations of measured data at different centre-of-mass energies and a universal function describing the pT-differential J/ψ production cross sections. The pT-differential nuclear modification factors RpPb of inclusive, prompt, and non-prompt J/ψ are consistent with unity and described by theoretical models implementing only nuclear shadowing.
2023
S. Acharya, D. Adamov??, A. Adler, G. Aglieri Rinella, M. Agnello, N. Agrawal, et al. (2023). J/ψ production at midrapidity in p-Pb collisions at √sNN=8.16 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2023(7), 1-36 [10.1007/jhep07(2023)137].
S. Acharya; D. Adamov??; A. Adler; G. Aglieri Rinella; M. Agnello; N. Agrawal; Z. Ahammed; S. Ahmad; S. U. Ahn; I. Ahuja; A. Akindinov; M. Al-Turany; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/951032
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