v2{2}/v2[2] with etagap > 0.8 and the comparison to hydrodynamic calculation in centrality 0-5%, 5-10%, 10-20%, 20-30%, 30-40% and 40-50%

Scope: PWG
PWG-CF (Flow and Correlations)
5.02 TeV
Figure Image
Figure image (.eps)
Figure image (.pdf)
Figure Caption

$v_2\{2\}/v_2[2]$ at $\sqrt{s_{NN}} = 5.02$ TeV with $|\Delta\eta| > 0.8$. The errors bars correspond to statistical uncertainties while the shaded color bands correspond to systematic uncertainties. Hydrodynamc calculations with TRENTo and AMPT initial conditions are shown in magenta and yellow.





Detail description

Keywords: Flow, Flow vector fluctuations, pT-dependent flow vector fluctuations, Pb-Pb collisions, 5.02 TeV

The ratio of v2{2} and v2[2] to probe pT-dependent flow vector fluctuations in Pb-Pb collisions. v2{2} has contribution from pT-dependent flow vector fluctuations as well as non-flow, whereas v2[2] only has contribution from non-flow.

Data sample: LHC15o

Events cuts: kInt7 trigger,  |Vz| < 10cm, V0M centrality estimator, Pileup cut, 

Track cuts: Filterbit 96, No. of TPC cluster > 70, NUA weights, Reference pT [0.2,5.0], |eta| < 0.8