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

LEA, RAMONA;RUI, RINALDO;
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.
2013
Esperti anonimi
Inglese
ELETTRONICO
111
102301-1
102301-11
11
HEAVY-ION COLLISIONS; RELATIVISTIC NUCLEAR COLLISIONS
981
info:eu-repo/semantics/article
262
B., Abelev; J., Adam; D., Adamová; A. M., Adare; M. M., Aggarwal; G., Aglieri Rinella; M., Agnello; A. G., Agocs; A., Agostinelli; Z., Ahammed; N., Ah...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11379/537416
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