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

Acharya, S ; Adolfsson, Jonatan LU ; Christiansen, Peter LU ; Ljunggren, Martin LU ; Oskarsson, Anders LU ; Richert, Tuva LU ; Silvermyr, David LU orcid ; Stenlund, Evert LU ; Vislavicius, Vytautas LU and Zou, S. (2018) In Journal of High Energy Physics 2018(10).
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... (More)
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.] © 2018, The Author(s). (Less)
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author collaboration
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publishing date
type
Contribution to journal
publication status
published
subject
keywords
Heavy Ion Experiments
in
Journal of High Energy Physics
volume
2018
issue
10
article number
174
publisher
Springer
external identifiers
  • scopus:85056140365
ISSN
1029-8479
DOI
10.1007/JHEP10(2018)174
language
English
LU publication?
yes
additional info
Export Date: 22 November 2018
id
40044deb-91b4-435d-badd-6c0c98469512
date added to LUP
2018-11-22 14:43:47
date last changed
2021-10-10 04:41:56
@article{40044deb-91b4-435d-badd-6c0c98469512,
  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| &lt; 0.5) as a function of transverse momentum (pT). The pT intervals covered in central collisions are: 1 &lt; pT&lt; 50 GeV/c for D0, 2 &lt; pT&lt; 50GeV/c for D+, 3 &lt; pT&lt; 50GeV/c for D*+, and 4 &lt; pT&lt; 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&gt; 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.] © 2018, The Author(s).},
  author       = {Acharya, S and Adolfsson, Jonatan and Christiansen, Peter and Ljunggren, Martin and Oskarsson, Anders and Richert, Tuva and Silvermyr, David and Stenlund, Evert and Vislavicius, Vytautas and Zou, S.},
  issn         = {1029-8479},
  language     = {eng},
  number       = {10},
  publisher    = {Springer},
  series       = {Journal of High Energy Physics},
  title        = {Measurement of D0, D+, D*+ and D s + production in Pb-Pb collisions at √sNN=5.02 TeV},
  url          = {http://dx.doi.org/10.1007/JHEP10(2018)174},
  doi          = {10.1007/JHEP10(2018)174},
  volume       = {2018},
  year         = {2018},
}