We present high-precision measurements of elliptic, triangular, andquadrangular flow $v_{2}$, $v_{3}$, and $v_{4}$, respectively, at midrapidity($|\eta|<1.0$) for identified hadrons $\pi$, $p$, $K$, $\varphi$, $K_s$,$\Lambda$ as a function of centrality and transverse momentum in Au+Aucollisions at the center-of-mass energy $\sqrt{s_{\rm NN}}=$ 200 GeV. Weobserve similar $v_{n}$ trends between light and strange mesons which indicatesthat the heavier strange quarks flow as strongly as the lighter up and downquarks. The number-of-constituent-quark scaling for $v_{2}$, $v_{3}$, and$v_{4}$ is found to hold within statistical uncertainty for 0-10$\%$, 10-40$\%$and 40-80$\%$ collision centrality intervals. The results are compared toseveral viscous hydrodynamic calculations with varying initial conditions, andcould serve as an additional constraint to the development of hydrodynamicmodels.
Centrality and transverse momentum dependence of higher-order flow harmonics of identified hadrons in Au+Au collisions at $\sqrt{s_{\rm NN}}$ = 200 GeV
S. FazioMembro del Collaboration Group
;J. Wu;J. Wu;Y. Yang;C. Zhang;J. Zhang;
2022-01-01
Abstract
We present high-precision measurements of elliptic, triangular, andquadrangular flow $v_{2}$, $v_{3}$, and $v_{4}$, respectively, at midrapidity($|\eta|<1.0$) for identified hadrons $\pi$, $p$, $K$, $\varphi$, $K_s$,$\Lambda$ as a function of centrality and transverse momentum in Au+Aucollisions at the center-of-mass energy $\sqrt{s_{\rm NN}}=$ 200 GeV. Weobserve similar $v_{n}$ trends between light and strange mesons which indicatesthat the heavier strange quarks flow as strongly as the lighter up and downquarks. The number-of-constituent-quark scaling for $v_{2}$, $v_{3}$, and$v_{4}$ is found to hold within statistical uncertainty for 0-10$\%$, 10-40$\%$and 40-80$\%$ collision centrality intervals. The results are compared toseveral viscous hydrodynamic calculations with varying initial conditions, andcould serve as an additional constraint to the development of hydrodynamicmodels.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.