Speaker
Mr
Niseem Abdelrahman
(Stony Brook University)
Description
Measurements of the beam energy dependence of anisotropic flow can provide crucial insight on the baryon chemical potential ($\mu_B$) and temperature ($T$) dependences of viscous damping and its associated specific shear viscosity $\eta/s$ in QCD matter. It has been predicted that the $\mu_B$ and $T$ dependence of $\eta/s$ could be sensitive to the critical endpoint (CEP) in the phase diagram for this matter. We will present and discuss recent STAR measurements of the anisotropic flow coefficients $v_{n}$ ($2\leq n \leq 5$) as a function of harmonic number ($n$), transverse momentum ($p_T$), and centrality in Au$+$Au collisions across the full span of BES-I energies ($7.7 - 200$~GeV). The implications of the extracted excitation function for viscous damping will be discussed as well.
Author
Mr
Niseem Abdelrahman
(Stony Brook University)
