$r_2$ at $\sqrt{s_{NN}} = 5.02$ TeV with $|\Delta\eta| > 0.8$ for different trigger particle $\textit{p}_T^t. The errors bars correspond to statistical uncertainties while the shaded color bands correspond to systematic uncertainties. Run 1 results at 2.76 TeV are shown for comparison in green points.
Keywords: Flow, Flow vector fluctuations, pT-dependent flow vector fluctuations, Pb-Pb collisions, 5.02 TeV
The factorization ratio r2 to probe pT-dependent flow vector fluctuations in Pb-Pb collisions. Values smaller than unity indicate that factorization is broken, meaning the two-particle correlation does not factorize into the product of a function of properties of only one of the particles times a function of the
properties of the second.
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