Bulk observables at 5.02 TeV using quasiparticle anisotropic hydrodynamics

17 Aug 2020  ·  Mubarak Alqahtani, Michael Strickland ·

We present comparisons between 3+1D quasiparticle anisotropic hydrodynamics (aHydroQP) predictions for a large set of bulk observables and experimental data collected in 5.02 TeV Pb-Pb collisions. We make aHydroQP predictions for identified hadron spectra, identified hadron average transverse momentum, charged particle multiplicity as a function of pseudorapidity, the kaon-to-pion ($K/\pi$) and proton-to-pion ($p/\pi$) ratios, and integrated elliptic flow... We compare to data collected by the ALICE collaboration in 5.02 TeV Pb-Pb collisions. We find that these bulk observables are quite well described by aHydroQP with an assumed initial central temperature of $T_0=630$ MeV at $\tau_0 = 0.25$ fm/c and a constant specific shear viscosity of $\eta/s=0.159$ and a peak specific bulk viscosity of $\zeta/s = 0.048$. In particular, we find that the momentum dependence of the kaon-to-pion ($K/\pi$) and proton-to-pion ($p/\pi$) ratios reported recently by the ALICE collaboration are extremely well described by aHydroQP in the most central collisions. read more

PDF Abstract
No code implementations yet. Submit your code now

Categories


Nuclear Theory High Energy Physics - Phenomenology