Azimuthally anisotropic distributions of D0, Dþ, and D0þ mesons were studied in the central rapidityregion (jyj < 0:8) in Pb-Pb collisions at a center-of-mass energy sNN 1⁄4 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 5:7' significance, based on the combination of statistical and systematic uncertainties.
D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at sqrt[s_{NN}]=2.76 TeV
ARNALDI, Roberta;BALA, RENU;BEOLE', Stefania;BERZANO, DARIO CARLO DOMENICO;BIANCHI, LIVIO;BOTTA, Elena;BRUNA, ELENA;BUFALINO, STEFANIA;FERRETTI, Alessandro;GAGLIARDI, Martino;GALLIO, Mauro;LEONCINO, MARCO;MASERA, Massimo;MILANO, LEONARDO;ORTONA, GIACOMO;RAMELLO, Luciano;RIVETTI, Angelo;RUSSO, RICCARDO;SITTA, Mario;VALLERO, Sara;VERCELLIN, Ermanno;
2013-01-01
Abstract
Azimuthally anisotropic distributions of D0, Dþ, and D0þ mesons were studied in the central rapidityregion (jyj < 0:8) in Pb-Pb collisions at a center-of-mass energy sNN 1⁄4 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 5:7' significance, based on the combination of statistical and systematic uncertainties.File | Dimensione | Formato | |
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