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Measurement of D0, D+, D[star]+ and D+s production in Pb-Pb collisions at √sNN=5.02 TeV

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We report measurements of the production of prompt D0, D+, D*+ and D s + mesons in Pb-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN−−−√=5.02sNN=5.02 \sqrt{s_{\mathrm{NN}}}=5.02 TeV, in the centrality classes 0-10%, 30-50% and 60-80%. The D-meson production yields are measur...

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Main Authors: Acharya, Shreyasi (Author) , Angelov, Venelin (Author) , Arslandok, Mesut (Author) , Danisch, Meike (Author) , Deisting, Alexander (Author) , Glässel, Peter (Author) , Kim, Jiyoung (Author) , Kim, Minjung (Author) , Köhler, Markus Konrad (Author) , Klewin, Sebastian (Author) , Knichel, Michael Linus (Author) , Leardini, Lucia (Author) , Mercado Pérez, Jorge (Author) , Ohlson, Alice (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Schmidt, Marten Ole (Author) , Stachel, Johanna (Author) , Weiser, Dennis (Author) , Windelband, Bernd (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: October 29, 2018
In: Journal of high energy physics
Year: 2018, Issue: 10
ISSN:1029-8479
DOI:10.1007/JHEP10(2018)174
Online Access:Verlag, Volltext: https://doi.org/10.1007/JHEP10(2018)174
Verlag, Volltext: https://link.springer.com/content/pdf/10.1007%2FJHEP10%282018%29174.pdf
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Author Notes:the ALICE Collaboration
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Summary:We report measurements of the production of prompt D0, D+, D*+ and D s + mesons in Pb-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN−−−√=5.02sNN=5.02 \sqrt{s_{\mathrm{NN}}}=5.02 TeV, in the centrality classes 0-10%, 30-50% and 60-80%. The D-meson production yields are measured at mid-rapidity (|y| < 0.5) as a function of transverse momentum (pT). The pT intervals covered in central collisions are: 1 < pT< 50 GeV/c for D0, 2 < pT< 50GeV/c for D+, 3 < pT< 50GeV/c for D*+, and 4 < pT< 16GeV/c for D s + mesons. The nuclear modification factors (RAA) for non-strange D mesons (D0, D+, D*+) show minimum values of about 0.2 for pT = 6-10 GeV/c in the most central collisions and are compatible within uncertainties with those measured at s√NN=2.76sNN=2.76 {\sqrt{s}}_{\mathrm{NN}}=2.76 TeV. For D s + mesons, the values of RAA are larger than those of non-strange D mesons, but compatible within uncertainties. In central collisions the average RAA of non-strange D mesons is compatible with that of charged particles for pT> 8 GeV/c, while it is larger at lower pT. The nuclear modification factors for strange and non-strange D mesons are also compared to theoretical models with different implementations of in-medium energy loss. Open image in new window
Item Description:Im Titel wird "star" als griechischer Buchstabe dargestellt
Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt
Im Titel sind "0", "star" und "+" hochgestellt
Im Titel sind "+" und "s" untereinander geschrieben: "+" hochgestellt "s" tiefgestellt
ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, M.C. Danisch, A. Deisting, P. Glässel, J. Kim, M. Kim, S. Klewin, M.K. Köhler, M.L. Knichel, L. Leardini, J. Mercado Pérez, A. Ohlson, Y. Pachmayer, K. Reygers, R. Schicker, M.O. Schmidt, J. Stachel, D.F. Weiser, B. Windelband [und weitere]
Gesehen am 31.05.2019
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP10(2018)174

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