J/ψ production as a function of charged-particle pseudorapidity density in p–Pb collisions at $\sqrt{{\textit s}_{\rm NN}}=5.02$ TeV

D. Adamová , Łukasz Graczykowski , Monika Jakubowska , Małgorzata Janik , Adam Kisiel , Janusz Oleniacz , Jan Pluta , Przemysław Rokita , Adam Szczepankiewicz , Maciej Szymański , Hanna Zbroszczyk

Abstract

We report measurements of the inclusive J/ψyield and average transverse momentum as a function of charged-particle pseudorapidity density dNch/dηin p–Pb collisions at √sNN=5.02 TeVwith ALICE at the LHC. The observables are normalised to their corresponding averages in non-single diffractive events. An increase of the normalised J/ψyield 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/ψproduction at forward rapidity with respect to backward rapidity for increasing charged-particle multiplicity.
Collective authorALICE Collaboration
Author D. Adamová
D. Adamová,,
-
, Łukasz Graczykowski ZFJ
Łukasz Graczykowski,,
- Nuclear Physics Division
, Monika Jakubowska ISEP
Monika Jakubowska,,
- The Institute of Control and Industrial Electronics
, Małgorzata Janik ZFJ
Małgorzata Janik,,
- Nuclear Physics Division
, Adam Kisiel ZFJ
Adam Kisiel,,
- Nuclear Physics Division
, Janusz Oleniacz ZFJ
Janusz Oleniacz,,
- Nuclear Physics Division
, Jan Pluta ZFJ
Jan Pluta,,
- Nuclear Physics Division
, Przemysław Rokita II
Przemysław Rokita,,
- The Institute of Computer Science
, Adam Szczepankiewicz II
Adam Szczepankiewicz,,
- The Institute of Computer Science
, Maciej Szymański ZFJ
Maciej Szymański,,
- Nuclear Physics Division
et al.`
Total number of authors1047
Journal seriesPhysics Letters B, ISSN 0370-2693
Issue year2018
Vol776
Pages91-104
Publication size in sheets0.65
DOIDOI:10.1016/j.physletb.2017.11.008
URL http://www.sciencedirect.com/science/article/pii/S0370269317309000?via%3Dihub
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
File
1-s2.0-S0370269317309000-main.pdf 1.09 MB
Score (nominal)40
ScoreMinisterial score [Punktacja MNiSW] = 35.0, 29-11-2017, ArticleFromJournal
Ministerial score (2013-2016) [Punktacja MNiSW (2013-2016)] = 40.0, 29-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor [Impact Factor WoS]: 2016 = 4.807 (2) - 2016=4.327 (5)
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