D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at √sNN=2.76  TeV

Lee Stuart Barnby; David Evans; Orlando Villalobos Baillie; Roman Lietava; Peter Jones; Anton Jusko; Arvinder Palaha; Plamen Petrov; Patrick Scott; Graham Lee; Marian Krivda; Luke Hanratty; Didier Alexandre

doi:10.1103/PhysRevLett.111.102301

D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at √s_NN=2.76 TeV

Lee Stuart Barnby, David Evans, Orlando Villalobos Baillie, Roman Lietava, Peter Jones, Anton Jusko, Arvinder Palaha, Plamen Petrov, Patrick Scott, Graham Lee, Marian Krivda, Luke Hanratty, Didier Alexandre

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

163 Citations (Scopus)

Abstract

Azimuthally anisotropic distributions of D⁰, D⁺, and D^*+ mesons were studied in the central rapidity region (|y|<0.8) in Pb-Pb collisions at a center-of-mass energy √s_NN=2.76 TeV per nucleon-nucleon collision, with the ALICE detector at the LHC. The second Fourier coefficient v₂ (commonly denoted elliptic flow) was measured in the centrality class 30%–50% as a function of the D meson transverse momentum p_T, in the range 2–16 GeV/c. The measured v₂ of D mesons is comparable in magnitude to that of light-flavor hadrons. It is positive in the range 2<p_T<6 GeV/c with 5.7σ significance, based on the combination of statistical and systematic uncertainties.

Original language	English
Article number	102301
Number of pages	11
Journal	Physical Review Letters
Volume	111
DOIs	https://doi.org/10.1103/PhysRevLett.111.102301
Publication status	Published - 5 Sept 2013

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10.1103/PhysRevLett.111.102301

http://link.aps.org/doi/10.1103/PhysRevLett.111.102301

Birmingham Nuclear Physics Consolidated Grant
Freer, M. (Principal Investigator), Evans, P. (Co-Investigator), Jones, P. (Co-Investigator), Wheldon, C. (Co-Investigator) & Lazzeroni, C. (Co-Investigator)
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/08/11 → 31/07/14
Project: Research Councils

Cite this

@article{6748ed9d1f484499b71ab13f3154df5b,

title = "D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at √sNN=2.76 TeV",

abstract = "Azimuthally anisotropic distributions of D0, D+, and D*+ mesons were studied in the central rapidity region (|y|<0.8) in Pb-Pb collisions at a center-of-mass energy √sNN=2.76 TeV per nucleon-nucleon collision, with the ALICE detector at the LHC. The second Fourier coefficient v2 (commonly denoted elliptic flow) was measured in the centrality class 30%–50% as a function of the D meson transverse momentum pT, in the range 2–16 GeV/c. The measured v2 of D mesons is comparable in magnitude to that of light-flavor hadrons. It is positive in the range 2<pT<6 GeV/c with 5.7σ significance, based on the combination of statistical and systematic uncertainties.",

author = "Barnby, {Lee Stuart} and David Evans and {Villalobos Baillie}, Orlando and Roman Lietava and Peter Jones and Anton Jusko and Arvinder Palaha and Plamen Petrov and Patrick Scott and Graham Lee and Marian Krivda and Luke Hanratty and Didier Alexandre",

year = "2013",

month = sep,

day = "5",

doi = "10.1103/PhysRevLett.111.102301",

language = "English",

volume = "111",

journal = "Physical Review Letters",

issn = "0031-9007",

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TY - JOUR

T1 - D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at √sNN=2.76 TeV

AU - Barnby, Lee Stuart

AU - Evans, David

AU - Villalobos Baillie, Orlando

AU - Lietava, Roman

AU - Jones, Peter

AU - Jusko, Anton

AU - Palaha, Arvinder

AU - Petrov, Plamen

AU - Scott, Patrick

AU - Lee, Graham

AU - Krivda, Marian

AU - Hanratty, Luke

AU - Alexandre, Didier

PY - 2013/9/5

Y1 - 2013/9/5

N2 - Azimuthally anisotropic distributions of D0, D+, and D*+ mesons were studied in the central rapidity region (|y|<0.8) in Pb-Pb collisions at a center-of-mass energy √sNN=2.76 TeV per nucleon-nucleon collision, with the ALICE detector at the LHC. The second Fourier coefficient v2 (commonly denoted elliptic flow) was measured in the centrality class 30%–50% as a function of the D meson transverse momentum pT, in the range 2–16 GeV/c. The measured v2 of D mesons is comparable in magnitude to that of light-flavor hadrons. It is positive in the range 2<pT<6 GeV/c with 5.7σ significance, based on the combination of statistical and systematic uncertainties.

AB - Azimuthally anisotropic distributions of D0, D+, and D*+ mesons were studied in the central rapidity region (|y|<0.8) in Pb-Pb collisions at a center-of-mass energy √sNN=2.76 TeV per nucleon-nucleon collision, with the ALICE detector at the LHC. The second Fourier coefficient v2 (commonly denoted elliptic flow) was measured in the centrality class 30%–50% as a function of the D meson transverse momentum pT, in the range 2–16 GeV/c. The measured v2 of D mesons is comparable in magnitude to that of light-flavor hadrons. It is positive in the range 2<pT<6 GeV/c with 5.7σ significance, based on the combination of statistical and systematic uncertainties.

U2 - 10.1103/PhysRevLett.111.102301

DO - 10.1103/PhysRevLett.111.102301

M3 - Article

SN - 0031-9007

VL - 111

JO - Physical Review Letters

JF - Physical Review Letters

M1 - 102301

ER -

D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at √sNN=2.76 TeV

Abstract

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Birmingham Nuclear Physics Consolidated Grant

Cite this

D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at √s_NN=2.76 TeV