Transverse momentum dependence of D-meson production in Pb-Pb collisions at √sNN = 2.76 TeV
ALICE Collaboration. (2016). Transverse momentum dependence of D-meson production in Pb-Pb collisions at √sNN = 2.76 TeV. Journal of High Energy Physics, 2016(3), Article 81. https://doi.org/10.1007/JHEP03(2016)081
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2016Copyright
© CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3 and licensed under CC BY 4.0.
The production of prompt charmed mesons D0
, D+ and D∗+, and their antiparticles,
was measured with the ALICE detector in Pb-Pb collisions at the centre-of-mass
energy per nucleon pair, √
sNN, of 2.76 TeV. The production yields for rapidity |y| < 0.5
are presented as a function of transverse momentum, pT, in the interval 1–36 GeV/c for
the centrality class 0–10% and in the interval 1–16 GeV/c for the centrality class 30–50%.
The nuclear modification factor RAA was computed using a proton-proton reference at
√
s = 2.76 TeV, based on measurements at √
s = 7 TeV and on theoretical calculations. A
maximum suppression by a factor of 5–6 with respect to binary-scaled pp yields is observed
for the most central collisions at pT of about 10 GeV/c. A suppression by a factor of about
2–3 persists at the highest pT covered by the measurements. At low pT (1–3 GeV/c), the
RAA has large uncertainties that span the range 0.35 (factor of about 3 suppression) to
1 (no suppression). In all pT intervals, the RAA is larger in the 30–50% centrality class
compared to central collisions. The D-meson RAA is also compared with that of charged
pions and, at large pT, charged hadrons, and with model calculations.
...
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Springer Berlin HeidelbergISSN Search the Publication Forum
1127-2236Publication in research information system
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Except where otherwise noted, this item's license is described as © CERN, for the benefit of the ALICE Collaboration. Article funded by SCOAP3 and licensed under CC BY 4.0.
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