Suppression of high transverse momentum D mesons in central Pb-Pb collisions at √sNN = 2.76 TeV

The ALICE Collaboration

Research output: Contribution to journalArticle

288 Citations (Scopus)

Abstract

The production of the prompt charm mesons D0, D+, D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy √sNN = 2.76 TeV per nucleon-nucleon collision. The pt-differential production yields in the range 2<pt<16 GeV/c at central rapidity, |y|<0.5, were used to calculate the nuclear modification factor RAA with respect to a proton-proton reference obtained from the cross section measured at √s = 7 TeV and scaled to √s = 2.76 TeV. For the three meson species, RAA shows a suppression by a factor 3–4, for transverse momenta larger than 5 GeV/c in the 20% most central collisions. The suppression is reduced for peripheral collisions.

Original languageEnglish
Article number112
JournalJournal of High Energy Physics
Volume2012
Issue number9
DOIs
Publication statusPublished - 2012 Sep 25

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transverse momentum
mesons
retarding
collisions
antiparticles
protons
center of mass
detectors
cross sections
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

@article{2ecb11a13b444b7ba79cda5d98bf8aa0,
title = "Suppression of high transverse momentum D mesons in central Pb-Pb collisions at √sNN = 2.76 TeV",
abstract = "The production of the prompt charm mesons D0, D+, D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy √sNN = 2.76 TeV per nucleon-nucleon collision. The pt-differential production yields in the range 2t<16 GeV/c at central rapidity, |y|<0.5, were used to calculate the nuclear modification factor RAA with respect to a proton-proton reference obtained from the cross section measured at √s = 7 TeV and scaled to √s = 2.76 TeV. For the three meson species, RAA shows a suppression by a factor 3–4, for transverse momenta larger than 5 GeV/c in the 20{\%} most central collisions. The suppression is reduced for peripheral collisions.",
author = "{The ALICE Collaboration} and B. Abelev and J. Adam and D. Adamov{\'a} and Adare, {A. M.} and Aggarwal, {M. M.} and {Aglieri Rinella}, G. and Agocs, {A. G.} and A. Agostinelli and {Aguilar Salazar}, S. and Z. Ahammed and N. Ahmad and {Ahmad Masoodi}, A. and Ahn, {S. U.} and A. Akindinov and D. Aleksandrov and B. Alessandro and {Alfaro Molina}, R. and A. Alici and A. Alkin and {Almar{\'a}z Avi{\~n}a}, E. and J. Alme and T. Alt and V. Altini and S. Altinpinar and I. Altsybeev and C. Andrei and A. Andronic and V. Anguelov and J. Anielski and C. Anson and T. Antičić and F. Antinori and P. Antonioli and L. Aphecetche and H. Appelsh{\"a}user and N. Arbor and S. Arcelli and A. Arend and N. Armesto and R. Arnaldi and T. Aronsson and Arsene, {I. C.} and M. Arslandok and A. Asryan and A. Augustinus and R. Averbeck and Awes, {T. C.} and J. {\"A}yst{\"o} and Kang, {Ju Hwan} and Youngil Kwon",
year = "2012",
month = "9",
day = "25",
doi = "10.1007/JHEP09(2012)112",
language = "English",
volume = "2012",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
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}

Suppression of high transverse momentum D mesons in central Pb-Pb collisions at √sNN = 2.76 TeV. / The ALICE Collaboration.

In: Journal of High Energy Physics, Vol. 2012, No. 9, 112, 25.09.2012.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Suppression of high transverse momentum D mesons in central Pb-Pb collisions at √sNN = 2.76 TeV

AU - The ALICE Collaboration

AU - Abelev, B.

AU - Adam, J.

AU - Adamová, D.

AU - Adare, A. M.

AU - Aggarwal, M. M.

AU - Aglieri Rinella, G.

AU - Agocs, A. G.

AU - Agostinelli, A.

AU - Aguilar Salazar, S.

AU - Ahammed, Z.

AU - Ahmad, N.

AU - Ahmad Masoodi, A.

AU - Ahn, S. U.

AU - Akindinov, A.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfaro Molina, R.

AU - Alici, A.

AU - Alkin, A.

AU - Almaráz Aviña, E.

AU - Alme, J.

AU - Alt, T.

AU - Altini, V.

AU - Altinpinar, S.

AU - Altsybeev, I.

AU - Andrei, C.

AU - Andronic, A.

AU - Anguelov, V.

AU - Anielski, J.

AU - Anson, C.

AU - Antičić, T.

AU - Antinori, F.

AU - Antonioli, P.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arbor, N.

AU - Arcelli, S.

AU - Arend, A.

AU - Armesto, N.

AU - Arnaldi, R.

AU - Aronsson, T.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Asryan, A.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Awes, T. C.

AU - Äystö, J.

AU - Kang, Ju Hwan

AU - Kwon, Youngil

PY - 2012/9/25

Y1 - 2012/9/25

N2 - The production of the prompt charm mesons D0, D+, D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy √sNN = 2.76 TeV per nucleon-nucleon collision. The pt-differential production yields in the range 2t<16 GeV/c at central rapidity, |y|<0.5, were used to calculate the nuclear modification factor RAA with respect to a proton-proton reference obtained from the cross section measured at √s = 7 TeV and scaled to √s = 2.76 TeV. For the three meson species, RAA shows a suppression by a factor 3–4, for transverse momenta larger than 5 GeV/c in the 20% most central collisions. The suppression is reduced for peripheral collisions.

AB - The production of the prompt charm mesons D0, D+, D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy √sNN = 2.76 TeV per nucleon-nucleon collision. The pt-differential production yields in the range 2t<16 GeV/c at central rapidity, |y|<0.5, were used to calculate the nuclear modification factor RAA with respect to a proton-proton reference obtained from the cross section measured at √s = 7 TeV and scaled to √s = 2.76 TeV. For the three meson species, RAA shows a suppression by a factor 3–4, for transverse momenta larger than 5 GeV/c in the 20% most central collisions. The suppression is reduced for peripheral collisions.

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U2 - 10.1007/JHEP09(2012)112

DO - 10.1007/JHEP09(2012)112

M3 - Article

VL - 2012

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 9

M1 - 112

ER -