Azimuthally anisotropic distributions of D-0, D+, and D*+ mesons were studied in the central rapidity region (vertical bar y vertical bar < 0.8) in Pb-Pb collisions at a center-of-mass energy root(S)(NN) = 2.76 TeV per nucleon-nucleon collision, with the ALICE detector at the LHC. The second Fourier coefficient upsilon(2) (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 upsilon(2) 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 5.7 sigma significance, based on the combination of statistical and systematic uncertainties.

D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at root(S)(NN)=2.76 TeV / B., A., J., A., D., A., A. M., A., M. M., A., G. A., R., M., A., A. G., A., A., A., Z., A., N., A., A. A., M., I., A., S. U., A., S. A., A., I., A., M., A., A., A., D., A., B., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 3:(2013), p. 102301. [10.1103/physrevlett.111.102301]

D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at root(S)(NN)=2.76 TeV

L. Cunqueiro;MEDDI, Franco;
2013

Abstract

Azimuthally anisotropic distributions of D-0, D+, and D*+ mesons were studied in the central rapidity region (vertical bar y vertical bar < 0.8) in Pb-Pb collisions at a center-of-mass energy root(S)(NN) = 2.76 TeV per nucleon-nucleon collision, with the ALICE detector at the LHC. The second Fourier coefficient upsilon(2) (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 upsilon(2) 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 5.7 sigma significance, based on the combination of statistical and systematic uncertainties.
2013
Relativistic heavy-ion collisions, Particle and resonance production, Quark deconfinement, quark-gluon plasma production, and phase transitions
01 Pubblicazione su rivista::01a Articolo in rivista
D Meson Elliptic Flow in Noncentral Pb-Pb Collisions at root(S)(NN)=2.76 TeV / B., A., J., A., D., A., A. M., A., M. M., A., G. A., R., M., A., A. G., A., A., A., Z., A., N., A., A. A., M., I., A., S. U., A., S. A., A., I., A., M., A., A., A., D., A., B., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 3:(2013), p. 102301. [10.1103/physrevlett.111.102301]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/552540
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