Pseudorapidity dependence of the anisotropic flow of charged particles in Pb-Pb collisions at √<i>s</i><sub>NN</sub>=2.76 TeV



Adam, J, Adamova, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S
et al (show 992 more authors) (2016) Pseudorapidity dependence of the anisotropic flow of charged particles in Pb-Pb collisions at √<i>s</i><sub>NN</sub>=2.76 TeV. PHYSICS LETTERS B, 762. pp. 376-388.

[thumbnail of Pseudorapidity dependence of the anisotropic flow of charged particles in Pb–Pb collisions at p s NN = 2 - 76 TeV.pdf] Text
Pseudorapidity dependence of the anisotropic flow of charged particles in Pb–Pb collisions at p s NN = 2 - 76 TeV.pdf - Author Accepted Manuscript

Download (463kB)

Abstract

We present measurements of the elliptic (v2), triangular (v3) and quadrangular (v4) anisotropic azimuthal flow over a wide range of pseudorapidities (−3.5<η<5). The measurements are performed with Pb–Pb collisions at sNN=2.76 TeV using the ALICE detector at the Large Hadron Collider (LHC). The flow harmonics are obtained using two- and four-particle correlations from nine different centrality intervals covering central to peripheral collisions. We find that the shape of vn(η) is largely independent of centrality for the flow harmonics n=2–4, however the higher harmonics fall off more steeply with increasing |η|. We assess the validity of extended longitudinal scaling of v2 by comparing to lower energy measurements, and find that the higher harmonic flow coefficients are proportional to the charged particle densities at larger pseudorapidities. Finally, we compare our measurements to both hydrodynamical and transport models, and find they both have challenges when it comes to describing our data.

Item Type: Article
Additional Information: publisher: Elsevier articletitle: Pseudorapidity dependence of the anisotropic flow of charged particles in Pb–Pb collisions at journaltitle: Physics Letters B articlelink: http://dx.doi.org/10.1016/j.physletb.2016.07.017 content_type: article copyright: © 2016 The Author. Published by Elsevier B.V.
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 08 Nov 2016 11:11
Last Modified: 20 Jun 2024 19:04
DOI: 10.1016/j.physletb.2016.07.017
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3004419