Inclusive J/psi production in pp, p-Pb and Pb-Pb collisions at forward rapidity with ALICE at the LHC

Abstract : The ALICE Collaboration has measured the inclusive J/psi, production at forward rapidity in pp, p-Pb and Pb-Pb collisions at the LHC. The pp measurements are crucial for a deeper understanding of the physics involving hadroproduction processes and provide the baseline for p-Pb and Pb-Pb measurements. The comparison of the results on the nuclear modification factor in p-Pb collisions as a function of rapidity or transverse momentum with theoretical predictions shows a fair agreement with a shadowing based model and energy loss models with or without a shadowing contribution. The nuclear modification factor in Pb-Pb as a function of collision centrality or transverse momentum shows a weaker suppression than at lower energies and can be described by statistical hadronization or transport models, suggesting a contribution to the J/psi, production due to the (re)combination of charm quarks, especially at low transverse momentum. The extrapolation to Pb-Pb collisions of the cold nuclear matter effects evaluated in p-Pb collisions supports the (re)combination mechanism interpretation.
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Communication dans un congrès
HOT QUARKS 2014: WORKSHOP FOR YOUNG SCIENTISTS ON THE PHYSICS OF ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS, Sep 2014, Las Negras, Spain. 612, 2015, Journal of Physics Conference Series. 〈10.1088/1742-6596/612/1/012030〉
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https://hal-mines-nantes.archives-ouvertes.fr/hal-01204727
Contributeur : Nathalie Fontaine <>
Soumis le : jeudi 24 septembre 2015 - 15:00:15
Dernière modification le : vendredi 22 juin 2018 - 09:30:22

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Javier Martin Blanco, Alice Collaboration. Inclusive J/psi production in pp, p-Pb and Pb-Pb collisions at forward rapidity with ALICE at the LHC. HOT QUARKS 2014: WORKSHOP FOR YOUNG SCIENTISTS ON THE PHYSICS OF ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS, Sep 2014, Las Negras, Spain. 612, 2015, Journal of Physics Conference Series. 〈10.1088/1742-6596/612/1/012030〉. 〈hal-01204727〉

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