Speaker
Description
Strange hadrons have smaller interaction cross-sections compared to light hadrons. The freeze-out temperatures of strange hadrons are close to the quark-hadron transition temperature as predicted by lattice Quantum Chromodynamics (lQCD). Therefore, they serve as an excellent probe for understanding the dynamics of QCD matter and the onset of the partonic stage in relativistic heavy-ion collisions.
In this work, we will present results on elliptic flow ($v_{2}$) of $K_{s}^{0}$, $\Lambda$, $\bar{\Lambda}$, $\Xi^{-}$, $\bar{\Xi}^{+}$, $\Omega^{-}$, and $\bar{\Omega}^{+}$ for Au + Au collisions at $E_{lab}$ = 35~A GeV from Parton Hadron String Dynamics (PHSD) transport model. PHSD is a microscopic off-shell transport approach that describes the strongly interacting partonic and hadronic matter in and out-of equilibrium.
We have analyzed $\sim$20 million minimum bias events for Au + Au collisions at $E_{lab}$ = 35~A GeV from the PHSD model. Measurements are made in the central rapidity region ($|y|$ $<$ 1.0) and different centrality intervals, which cover central to peripheral collisions.
We will present the dependence of $v_{2}$ on centrality, rapidity ($y$), and transverse momentum ($p_{T}$). In order to investigate the collectivity in Au + Au collisions, we have also measured the ratio of $v_{2}$ scaled by the participant eccentricity ($\varepsilon_{2}$). We will discuss the number of constituent quark (NCQ) scaling of the measured $v_{2}$ in these collisions. We will show comparison of our measurements to the published experimental results.
| Session | Heavy Ions and QCD |
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