XXV DAE-BRNS High Energy Physics Symposium 2022

Elliptic flow of ϕ mesons in Au + Au collisions at Elab = 35 A GeV using PHSD model

15 Dec 2022, 14:00

1h

IISER Mohali

Poster Poster - 3

Speaker

Mr Waseem Ahmad Bhat (Department of Physics, University of Kashmir, Srinagar-190006, India.)

Description

Hot and dense matter created in relativistic heavy-ion collisions exhibits collective behaviour due to multi-particle interactions among the constituents of the matter.
Elliptic flow (the second harmonic coefficient of the Fourier decomposition of the azimuthal angle distribution of particles) is one of the observables to measure the collective behavior in the early stages of heavy-ion collisions. The $\varphi$ meson, which is the bound state of strange (s) and antistrange ($\overline{s}$) quark, have a low hadronic interaction cross-section as compared to other light hadrons. Due to the small hadronic interaction cross-section, the elliptic flow ($v_2$) of $\varphi$ mesons act as an important tool to probe the system created in relativistic heavy-ion collisions.

We have extracted the $\varphi$ mesons from $K^{+}{K}^{-}$ decay channel in Au + Au collisions generated from Parton Hadron String Dynamics (PHSD) transport model. We have used 30 million events from the PHSD model. We will present $v_2$ of $\varphi$ mesons as a function of transverse momentum ($p_T$) and rapidity (y) in Au+Au collisions at $E_{lab}$ = 35 A GeV. We will also present collision centrality dependence of $\varphi$ mesons $v_2$ and show comparison to the published experimental results.