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

S. Acharya , D Adamova , Radosław Bala , M. Bonora , Alberto Castro , Sunwoong Cho , P. Ghosh , P. Giubilato , Łukasz Graczykowski , F. Herrmann , Ch Hughes , Dirk Hutter , Vitalii Ivanov , P. A. Jacobs , Monika Jakubowska , Małgorzata Janik , M Bee Jin Low , Evan P.C Jones , Przemysław Karczmarczyk , Jung-wook Kim , Jung-wook Kim , Adam Kisiel , SS. Kumar , José Carlos Lara Gómez , A. Lattuca , N. Martin , Mònica Martinez , Julian Myrcha , Jeremi Niedziela , Janusz Oleniacz , Jakub Siemek, Prof. dr hab. inż. czł. PAN , Jan Pluta , Marta Janczuk-Richter , Przemysław Rokita , Krystian Rosłon , Md. Shahjahan K. A. Sarkar , Krzysztof Sielewicz , J. Song , F Sozzi , S. Tripathy , Tomasz Trzciński , Barbara Trzeciak , Chien-Ming Wang , Jaap Wessels , Michael D. Williams , Z. Yin , Ammar Zaman , Hanna Zbroszczyk , Jiang Zhu

Abstract

We report measurements of the production of prompt D0, D+, D*+ and Ds+ mesons in Pb–Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN=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 Ds+ 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 sNN=2.76 TeV. For Ds+ 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.[Figure not available: see fulltext.]

Collective authorF.T. Acosta, J. Adolfsson, M.M. Aggarwal, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. A.....
Author S. Acharya
S. Acharya,,
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, D Adamova
D Adamova,,
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, Radosław Bala
Radosław Bala,,
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, M. Bonora
M. Bonora,,
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, Alberto Castro
Alberto Castro,,
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, Sunwoong Cho
Sunwoong Cho,,
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, P. Ghosh
P. Ghosh,,
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, P. Giubilato
P. Giubilato,,
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, Łukasz Graczykowski (FP / NPD)
Łukasz Graczykowski,,
- Nuclear Physics Division
, F. Herrmann
F. Herrmann,,
-
et al.`
Journal seriesJournal of High Energy Physics, ISSN 1029-8479 [1126-6708], (A 40 pkt)
Issue year2018
Vol2018
Pages1-34
Publication size in sheets1.65
ASJC Classification3106 Nuclear and High Energy Physics
DOIDOI:10.1007/JHEP10(2018)174
Languageen angielski
Score (nominal)40
ScoreMinisterial score = 40.0, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, ArticleFromJournal
Publication indicators Scopus Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.083; WoS Impact Factor: 2017 = 5.541 (2) - 2017=4.807 (5)
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