Elsevier

Physics Letters B

Volume 784, 10 September 2018, Pages 82-95
Physics Letters B

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

https://doi.org/10.1016/j.physletb.2018.06.059Get rights and content
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Abstract

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.

Cited by (0)

i

Deceased.

ii

Dipartimento DET del Politecnico di Torino, Turin, Italy.

iii

M.V. Lomonosov Moscow State University, D.V. Skobeltsyn Institute of Nuclear, Physics, Moscow, Russia..

iv

Department of Applied Physics, Aligarh Muslim University, Aligarh, India.

v

Institute of Theoretical Physics, University of Wroclaw, Poland.

E-mail address: [email protected].