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Higher harmonic non-linear flow modes of charged hadrons in Pb-Pb collisions at sNN = 5.02 TeV
Ist Teil von
The journal of high energy physics, 2020-05, Vol.2020 (5)
Ort / Verlag
Berlin/Heidelberg: Springer Berlin Heidelberg
Erscheinungsjahr
2020
Link zum Volltext
Quelle
EZB Electronic Journals Library
Beschreibungen/Notizen
A
bstract
Anisotropic flow coefficients,
v
n
, non-linear flow mode coefficients,
χ
n,mk
, and correlations among different symmetry planes,
ρ
n,mk
are measured in Pb-Pb collisions at
s
NN
= 5
.
02 TeV. Results obtained with multi-particle correlations are reported for the transverse momentum interval 0
.
2
< p
T
<
5
.
0 GeV/
c
within the pseudorapidity interval 0
.
4
<
|
η
|
<
0
.
8 as a function of collision centrality. The
v
n
coefficients and
χ
n,mk
and
ρ
n,mk
are presented up to the ninth and seventh harmonic order, respectively. Calculations suggest that the correlations measured in different symmetry planes and the non-linear flow mode coefficients are dependent on the shear and bulk viscosity to entropy ratios of the medium created in heavy-ion collisions. The comparison between these measurements and those at lower energies and calculations from hydrodynamic models places strong constraints on the initial conditions and transport properties of the system.