We report measurements of the inclusive J/Ï yield and average transverse momentum as a function of charged-particle pseudorapidity density dNch/dη in pâPb collisions at sNN=5.02TeV with ALICE at the LHC. The observables are normalised to their corresponding averages in non-single diffractive events. An increase of the normalised J/Ï yield with normalised dNch/dη, measured at mid-rapidity, is observed at mid-rapidity and backward rapidity. At forward rapidity, a saturation of the relative yield is observed for high charged-particle multiplicities. The normalised average transverse momentum at forward and backward rapidities increases with multiplicity at low multiplicities and saturates beyond moderate multiplicities. In addition, the forward-to-backward nuclear modification factor ratio is also reported, showing an increasing suppression of J/Ï production at forward rapidity with respect to backward rapidity for increasing charged-particle multiplicity.
J/psi production as a function of charged-particle pseudorapidity density in p-Pb collisions at √sNN=5.02TeV / Adamová, D., Aggarwal, M.M., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, N., Ahn, S.U., Aiola, S., Akindinov, A., Alam, S.N., Albuquerque, D.S.D., Aleksandrov, D., Alessandro, B., Alexandre, D., Alfaro Molina, R., Alici, A., Alkin, A., Alme, J., Alt, T., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 776:(2018), pp. 91-104. [10.1016/j.physletb.2017.11.008]
J/psi production as a function of charged-particle pseudorapidity density in p-Pb collisions at √sNN=5.02TeV
Bruno, G. E.Writing – Original Draft Preparation
;
2018
Abstract
We report measurements of the inclusive J/Ï yield and average transverse momentum as a function of charged-particle pseudorapidity density dNch/dη in pâPb collisions at sNN=5.02TeV with ALICE at the LHC. The observables are normalised to their corresponding averages in non-single diffractive events. An increase of the normalised J/Ï yield with normalised dNch/dη, measured at mid-rapidity, is observed at mid-rapidity and backward rapidity. At forward rapidity, a saturation of the relative yield is observed for high charged-particle multiplicities. The normalised average transverse momentum at forward and backward rapidities increases with multiplicity at low multiplicities and saturates beyond moderate multiplicities. In addition, the forward-to-backward nuclear modification factor ratio is also reported, showing an increasing suppression of J/Ï production at forward rapidity with respect to backward rapidity for increasing charged-particle multiplicity.| File | Dimensione | Formato | |
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