\documentclass{article}
%\topmargin -2cm
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%\usepackage{graphicx}% Include figure files
%\usepackage{dcolumn}% Align table columns on decimal point
%\usepackage{bm}% bold math
%\usepackage{color}
\usepackage{lineno}
\usepackage[numbers,sort&compress]{natbib}
\usepackage[top=3.54cm, bottom=3.54cm, left=4.0cm,right=4.0cm]{geometry}
%\usepackage[colorlinks,
%           bookmarks=true,
%           linkcolor=blue,
%           %pdfborder=blue?
%           urlcolor=blue,
%            anchorcolor=black,
%            citecolor=blue
%            ]{hyperref}

%\usepackage[all]{hypcap}

\begin{document}
\begin{center}
\textbf{\Large Elliptic and triangular flow of (multi-)strange hadrons and $\phi$ mesons in BES-II energies at STAR
 }\\
\end{center}
\begin{center}
\textbf{Prabhupada Dixit,  Li-Ke Liu}\\

\textbf{(for the STAR Collaboration)}\\
\end{center}
\begin{center}
%\textbf{Central China Normal University}\\
\end{center}

\linenumbers

Elliptic flow coefficient, $v_2$, is sensitive to the dynamics at the early stages of the system evolution in heavy-ion collisions and equation of state of the medium. 
Triangular flow $v_3$ is particularly sensitive to the initial geometry fluctuations.
The hadronic interaction cross sections of multi-strange hadrons and $\phi$ mesons are expected to be small. Hence, anisotropic flow of these hadrons  provides information primarily from the early stages of the high energy collisions.
 
From the measurements based on the first phase of the RHIC beam energy scan (BES-I), number-of-constituent-quark (NCQ) scaled elliptic flow for $\phi$ mesons shows about 2 $\sigma$ deviations from other particles~\cite{ref1, ref2}. The apparent violation of NCQ scaling may indicate the dominance of hadronic interactions over partonic interactions at and below  $\sqrt{s_{NN}}$ = 11.5 GeV. In this talk, with the enhanced statistics
from the second phase of the RHIC beam energy scan (BES-II) program, we will present measurements with improved precision of $v_2$ and $v_3$ for $K^\pm$, $K_S^0$, $\phi$, $\Lambda$, $\bar{\Lambda}$, $\Xi^{-}$, $\bar{\Xi}^{+}$, $\Omega^{-}$, and $\bar{\Omega}^{+}$ in Au+Au collisions at $\sqrt{s_{NN}}$ = 3 - 19.6 GeV from STAR. A test of the NCQ scaling of $v_2$ and $v_3$ will be revisited with high statistics data. Implications of these measurements in the context of QCD phase structure at high baryon density region will be discussed.

%\nolinenumbers
\pagenumbering{gobble}
%\small

\begin{thebibliography}{99}

\bibitem{ref1} L.~Adamczyk \textit{et al.} (STAR),
%``Observation of an Energy-Dependent Difference in Elliptic Flow between Particles and Antiparticles in Relativistic Heavy Ion Collisions,''
Phys. Rev. Lett. \textbf{110}, 142301 (2013)
%100 citations counted in INSPIRE as of 22 Apr 2022
\bibitem{ref2} L.~Adamczyk \textit{et al.} (STAR),
%``Elliptic flow of identified hadrons in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7-62.4 GeV,''
Phys. Rev. C \textbf{88}, 014902 (2013)
%162 citations counted in INSPIRE as of 22 Apr 2022


\end{thebibliography}

\end{document}