Speaker
Description
Azimuthal anisotropy scaling functions can provide crucial constraints for the properties of the medium produced in ion-ion collisions, because they leverage the characteristic scaling patterns for viscous-flow and jet quenching, to simultaneously delineate the respective role of initial-state eccentricity $\varepsilon_n$, dimensionless size $RT \propto \left< N_{\rm chg}\right>^{1/3}$, the viscous correction to the thermal distribution function $\delta_{f}$, the specific shear $\eta/s(T, \mu_{B})$, and bulk $\zeta/s(T, \mu_{B})$ viscosities, stopping power of the medium $\hat{q}((T, \mu_{B}))$ ... The anisotropy scaling functions indicate data collapse on to a single curve for fully constrained scaling coefficients, which in turn, provide constraints for the transport coefficients and the eccentricity spectrum. I will present and discuss anisotropy scaling functions for charged hadrons and identified particle species, obtained from a broad array of collision-system sizes, shapes, and asymmetries for $\sqrt{s_{NN}}$ values spanning RHIC and LHC energies. The scaling coefficients, which provide new and compelling constraints for the transport coefficients will be presented and discussed.
Contribution type | Contributed Talk |
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Track | Jets and High Momentum Hadrons |