TY - JOUR
T1 - Anisotropic Flow of Charged Particles in Pb-Pb Collisions at √sNN=5.02TeV
AU - Adam, J.
AU - Adamová, D.
AU - Aggarwal, M. M.
AU - Aglieri Rinella, G.
AU - Agnello, M.
AU - Agrawal, N.
AU - Ahammed, Z.
AU - Ahn, S. U.
AU - Aiola, S.
AU - Akindinov, A.
AU - Alam, S. N.
AU - Albuquerque, D. S. D.
AU - Aleksandrov, D.
AU - Alessandro, B.
AU - Alexandre, D.
AU - Alfaro Molina, R.
AU - Alici, A.
AU - Alkin, A.
AU - Almaraz, J. R. M.
AU - Alme, J.
AU - Alt, T.
AU - Altinpinar, S.
AU - Bedda, C.
AU - Bertens, R. A.
AU - Caliva, A.
AU - Christakoglou, P.
AU - Dubla, A.
AU - Grelli, A.
AU - Keijdener, D. L. D.
AU - Kuijer, P. G.
AU - Lehas, F.
AU - Leogrande, E.
AU - Lodato, D. F.
AU - Margutti, J.
AU - Mischke, A.
AU - Mohammadi, N.
AU - Nooren, G.
AU - Oliveira Da Silva, A. C.
AU - Peitzmann, T.
AU - Richert, T.
AU - Rocco, E.
AU - Rodriguez Manso, A.
AU - Snellings, R. J. M.
AU - Van Der Maarel, J.
AU - Van Leeuwen, M.
AU - Veen, A. M.
AU - Veldhoen, M.
AU - Wang, H.
AU - Yang, H.
AU - Zhang, C.
AU - ALICE Collaboration
PY - 2016/4/1
Y1 - 2016/4/1
N2 - We report the first results of elliptic (v2), triangular (v3), and quadrangular (v4) flow of charged particles in Pb-Pb collisions at a center-of-mass energy per nucleon pair of √sNN=5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurements are performed in the central pseudorapidity region |η|<0.8 and for the transverse momentum range 0.2<pT<5 GeV/c. The anisotropic flow is measured using two-particle correlations with a pseudorapidity gap greater than one unit and with the multiparticle cumulant method. Compared to results from Pb-Pb collisions at √sNN=2.76 TeV, the anisotropic flow coefficients v2, v3, and v4 are found to increase by (3.0±0.6)%, (4.3±1.4)%, and (10.2±3.8)%, respectively, in the centrality range 0%–50%. This increase can be attributed mostly to an increase of the average transverse momentum between the two energies. The measurements are found to be compatible with hydrodynamic model calculations. This comparison provides a unique opportunity to test the validity of the hydrodynamic picture and the power to further discriminate between various possibilities for the temperature dependence of shear viscosity to entropy density ratio of the produced matter in heavy-ion collisions at the highest energies.
AB - We report the first results of elliptic (v2), triangular (v3), and quadrangular (v4) flow of charged particles in Pb-Pb collisions at a center-of-mass energy per nucleon pair of √sNN=5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurements are performed in the central pseudorapidity region |η|<0.8 and for the transverse momentum range 0.2<pT<5 GeV/c. The anisotropic flow is measured using two-particle correlations with a pseudorapidity gap greater than one unit and with the multiparticle cumulant method. Compared to results from Pb-Pb collisions at √sNN=2.76 TeV, the anisotropic flow coefficients v2, v3, and v4 are found to increase by (3.0±0.6)%, (4.3±1.4)%, and (10.2±3.8)%, respectively, in the centrality range 0%–50%. This increase can be attributed mostly to an increase of the average transverse momentum between the two energies. The measurements are found to be compatible with hydrodynamic model calculations. This comparison provides a unique opportunity to test the validity of the hydrodynamic picture and the power to further discriminate between various possibilities for the temperature dependence of shear viscosity to entropy density ratio of the produced matter in heavy-ion collisions at the highest energies.
U2 - 10.1103/PhysRevLett.116.132302
DO - 10.1103/PhysRevLett.116.132302
M3 - Article
SN - 0031-9007
VL - 116
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
M1 - 132302
ER -