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Measurement of prompt D-meson production in p−Pb collisions at √sNN=5.02 TeV

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The pT-differential production cross sections of the prompt charmed mesons D0, D+, D*+, and D+s and their charge conjugate in the rapidity interval −0.96<ycms<0.04 were measured in p−Pb collisions at a center-of-mass energy √sNN=5.02 TeV with the ALICE detector at the LHC. The nuclear modifica...

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Main Authors: Abelev, Betty (Author) , Angelov, Venelin (Author) , Busch, Oliver (Author) , Glässel, Peter (Author) , Klein, Jochen (Author) , Leardini, Lucia (Author) , Lohner, Daniel (Author) , Lu, Xianguo (Author) , Maire, Antonin (Author) , Mercado Pérez, Jorge (Author) , Oyama, Ken (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Stachel, Johanna (Author) , Stiller, Johannes Hendrik (Author) , Vallero, Sara (Author) , Völkl, Martin (Author) , Wilkinson, Jeremy (Author) , Windelband, Bernd (Author) , Winn, Michael (Author) , Zimmermann, Alice (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: 4 December 2014
In: Physical review letters
Year: 2014, Volume: 113, Issue: 23
ISSN:1079-7114
DOI:10.1103/PhysRevLett.113.232301
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.113.232301
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.113.232301
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Author Notes:B. Abelev et al.* (ALICE Collaboration)
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Summary:The pT-differential production cross sections of the prompt charmed mesons D0, D+, D*+, and D+s and their charge conjugate in the rapidity interval −0.96<ycms<0.04 were measured in p−Pb collisions at a center-of-mass energy √sNN=5.02 TeV with the ALICE detector at the LHC. The nuclear modification factor RpPb, quantifying the D-meson yield in p−Pb collisions relative to the yield in pp collisions scaled by the number of binary nucleon-nucleon collisions, is compatible within the 15%-20% uncertainties with unity in the transverse momentum interval 1<pT<24 GeV/c. No significant difference among the RpPb of the four D-meson species is observed. The results are described within uncertainties by theoretical calculations that include initial-state effects. The measurement adds experimental evidence that the modification of the momentum spectrum of D mesons observed in Pb-Pb collisions with respect to pp collisions is due to strong final-state effects induced by hot partonic matter.
Item Description:*ALICE Collaboration: B. Abelev, V. Anguelov, O. Busch, P. Glässel, J. Klein, L. Leardini, D. Lohner, X.-G. Lu, A. Maire, J. Mercado Pérez, K. Oyama, Y. Pachmayer, K. Reygers, R. Schicker, J. Stachel, J. Stiller, S. Vallero, M. Völkl, J. Wilkinson, B. Windelband, M. Winn, A. Zimmermann [und 925 weitere Personen]
Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt
Im Titel ist der Buchstabe s hochgestellt
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Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.113.232301

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