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 √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 √s_NN=2.76  TeV / Abelev, B., Adam, J., Adamová, D., Adare, A.M., Aggarwal, M.M., Aglieri Rinella, G., Agnello, M., Agocs, A.G., Agostinelli, A., Ahammed, Z., Ahmad, N., Ahmad Masoodi, A., Ahmed, I., Ahn, S.U., Ahn, S.A., Aimo, I., Ajaz, M., Akindinov, A., Aleksandrov, D., Alessandro, B., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 111:(2013), pp. 102301-1-102301-11. [10.1103/PhysRevLett.111.102301]

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

CAMERINI, Paolo;G. Contin;FRAGIACOMO, ENRICO;LEA, RAMONA;MARGAGLIOTTI, GIACOMO;PIANO, STEFANO;RUI, RINALDO;V. Zaccolo;
2013-01-01

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 √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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2719401
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