Anisotropic flow in Xe–Xe collisions at sNN=5.44 TeV

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T1 - Anisotropic flow in Xe–Xe collisions at sNN=5.44 TeV

AU - ALICE Collaboration

AU - Acharya, S

AU - Adolfsson, Jonatan

AU - Christiansen, Peter

AU - Ljunggren, Martin

AU - Nassirpour, Adrian

AU - Oskarsson, Anders

AU - Richert, Tuva

AU - Silvermyr, David

AU - Stenlund, Evert

AU - Vislavicius, Vytautas

AU - Zou, S.

N1 - Export Date: 7 September 2018

PY - 2018

Y1 - 2018

N2 - The first measurements of anisotropic flow coefficients vn for mid-rapidity charged particles in Xe–Xe collisions at sNN=5.44 TeV are presented. Comparing these measurements to those from Pb–Pb collisions at sNN=5.02 TeV, v2 is found to be suppressed for mid-central collisions at the same centrality, and enhanced for central collisions. The values of v3 are generally larger in Xe–Xe than in Pb–Pb at a given centrality. These observations are consistent with expectations from hydrodynamic predictions. When both v2 and v3 are divided by their corresponding eccentricities for a variety of initial state models, they generally scale with transverse density when comparing Xe–Xe and Pb–Pb, with some deviations observed in central Xe–Xe and Pb–Pb collisions. These results assist in placing strong constraints on both the initial state geometry and medium response for relativistic heavy-ion collisions. © 2018 European Organization for Nuclear Research

AB - The first measurements of anisotropic flow coefficients vn for mid-rapidity charged particles in Xe–Xe collisions at sNN=5.44 TeV are presented. Comparing these measurements to those from Pb–Pb collisions at sNN=5.02 TeV, v2 is found to be suppressed for mid-central collisions at the same centrality, and enhanced for central collisions. The values of v3 are generally larger in Xe–Xe than in Pb–Pb at a given centrality. These observations are consistent with expectations from hydrodynamic predictions. When both v2 and v3 are divided by their corresponding eccentricities for a variety of initial state models, they generally scale with transverse density when comparing Xe–Xe and Pb–Pb, with some deviations observed in central Xe–Xe and Pb–Pb collisions. These results assist in placing strong constraints on both the initial state geometry and medium response for relativistic heavy-ion collisions. © 2018 European Organization for Nuclear Research

U2 - 10.1016/j.physletb.2018.06.059

DO - 10.1016/j.physletb.2018.06.059

M3 - Article

VL - 784

SP - 82

EP - 95

JO - Physics Letters B

T2 - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -