Speaker
Description
Measurements of long-range angular correlations are one of the important tools to evaluate the interplay between the initial- and final-state effects in small collision systems in view of understanding the evidence of collectivity.
The charged-particle multiplicity distribution as a function of pseudorapidity ($\eta$) is asymmetric in p--Pb collisions. Since the mean free path depends on multiplicity, the $v_{n}(\eta)$ reflects the dynamics of collectivity in p--Pb collisions. The measurement of $v_{n}(\eta)$ in p--Pb collisions is an important study of how charged-particle multiplicity and anisotropic flow relate to the longitudinal evolution of the system. In this poster, we present new final results of $v_{2}(\eta)$ extracted from long-range two-particle azimuthal correlations in p--Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV measured with ALICE. These measurements utilize the Forward Multiplicity Detector, which allows for unprecedented pseudorapidity ranges to be explored (up to $\Delta\eta\sim$ 8) and allow to measure the $\eta$ dependence of $v_{2}$ over a wide pseudorapidity range (−3.1 $< \eta<$ 4.8). Results are compared with the AMPT and hydrodynamical calculations.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | ALICE collaboration |
