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J/[psi] suppression at forward rapidity in Pb-pb collisions at √sNN=2.76  TeV

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The ALICE experiment has measured the inclusive J/ψ production in Pb-Pb collisions at √sNN=2.76 TeV down to zero transverse momentum in the rapidity range 2.5<y<4. A suppression of the inclusive J/ψ yield in Pb-Pb is observed with respect to the one measured in pp collisions scaled by the numb...

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Main Authors: Abelev, Betty (Author) , Angelov, Venelin (Author) , Busch, Oliver (Author) , Engel, Heiko (Author) , Glässel, Peter (Author) , Grajcarek, Robert (Author) , Herrmann, Norbert (Author) , Krawutschke, Tobias (Author) , Kweon, MinJung (Author) , Lara Martinez, Camilo Ernesto (Author) , Lu, Xianguo (Author) , Lohner, Daniel (Author) , Mercado Pérez, Jorge (Author) , Oyama, Ken (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Schweda, Kai (Author) , Stachel, Johanna (Author) , Ulrich, Joachim (Author) , Vallero, Sara (Author) , Wang, Yifei (Author) , Wiechula, Jens (Author) , Windelband, Bernd (Author) , Zelnicek, Pierre (Author) , Zimmermann, Alice (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: 16 August 2012
In: Physical review letters
Year: 2012, Volume: 109, Issue: 7
ISSN:1079-7114
DOI:10.1103/PhysRevLett.109.072301
Online Access:Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.109.072301
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.109.072301
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Author Notes:B. Abelev et al.* (ALICE Collaboration)
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Summary:The ALICE experiment has measured the inclusive J/ψ production in Pb-Pb collisions at √sNN=2.76 TeV down to zero transverse momentum in the rapidity range 2.5<y<4. A suppression of the inclusive J/ψ yield in Pb-Pb is observed with respect to the one measured in pp collisions scaled by the number of binary nucleon-nucleon collisions. The nuclear modification factor, integrated over the 0%-80% most central collisions, is 0.545±0.032(stat)±0.083(syst) and does not exhibit a significant dependence on the collision centrality. These features appear significantly different from measurements at lower collision energies. Models including J/ψ production from charm quarks in a deconfined partonic phase can describe our data.
Item Description:Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt
Im Titel wird "psi" als griechischer Buchstabe dargestellt
B. Abelev, V. Anguelov, O. Busch, H. Engel, P. Glässel, R.Grajcarek, N. Herrmann, T. Krawutschke, M.J. Kweon, C. Lara, X. Lu, D. Lohner, J. Mercado Pérez, K. Oyama, Y. Pachmayer, K. Reygers, R. Schicker, K. Schweda, J. Stachel, J. Ulrich, S. Vallero, Y. Wang, J. Wiechula, B. Windelband, P. Zelnicek, A. Zimmermann [und weitere]
Gesehen am 30.11.2018
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.109.072301

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