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Suppression of high transverse momentum D mesons in central Pb-pb collisions at √sNN=2.76TeV

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The production of the prompt charm mesons D0, D+, D*+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy sNN−−−√=2.76TeVsNN=2.76TeV \sqrt{{{s_{\mathrm{NN}}}}}=2.76\;\mathrm{TeV} per nucleon-nucleon collision. The p t-differential...

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Main Authors: Abelev, Betty (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) , 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) , Wiechula, Jens (Author) , Windelband, Bernd (Author) , Zelnicek, Pierre (Author) , Zimmermann, Alice (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: September 25, 2012
In: Journal of high energy physics
Year: 2012, Issue: 9
ISSN:1029-8479
DOI:10.1007/JHEP09(2012)112
Online Access:Verlag, Volltext: http://dx.doi.org/10.1007/JHEP09(2012)112
Verlag, Volltext: https://doi.org/10.1007/JHEP09(2012)112
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Author Notes:The ALICE Collaboration
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Summary:The production of the prompt charm mesons D0, D+, D*+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy sNN−−−√=2.76TeVsNN=2.76TeV \sqrt{{{s_{\mathrm{NN}}}}}=2.76\;\mathrm{TeV} per nucleon-nucleon collision. The p t-differential production yields in the range 2 < p t < 16 GeV/c at central rapidity, |y| < 0.5, were used to calculate the nuclear modification factor R AA with respect to a proton-proton reference obtained from the cross section measured at s√=7TeVs=7TeV \sqrt{s}=7\;\mathrm{TeV} and scaled to s√=2.76TeVs=2.76TeV \sqrt{s}=2.76\;\mathrm{TeV} . For the three meson species, R AA shows a suppression by a factor 3-4, for transverse momenta larger than 5 GeV/c in the 20% most central collisions. The suppression is reduced for peripheral collisions.
Item Description:Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt
The ALICE Collaboration: B. Abelev, O. Busch, H. Engel, P. Glässel, R. Grajcarek, N. Herrmann, T. Krawutschke, M.J. Kweon, C. Lara, D. Lohner, J. Mercado Pérez, K. Oyama, Y. Pachmayer, K. Reygers, R. Schicker, K. Schweda, J. Stachel, J. Ulrich, S. Vallero, J. Wiechula, B. Windelband, P. Zelnicek, A. Zimmermann [und weitere]
Gesehen am 30.11.2018
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP09(2012)112

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