Anisotropic hydrodynamic modeling of 2.76 TeV Pb-Pb collisions

In this talk, I will present some comparisons of phenomenological results from 3+1d quasiparticle anisotropic hydrodynamics (aHydroQP) with experimental data collected in LHC 2.76 TeV Pb-Pb collisions. In particular, I will present comparisons of particle spectra, average transverse momentum, and elliptic flow. This new model relies on the introduction of a single temperature-dependent quasiparticle mass which is fit to lattice QCD data. The dynamical equations can be obtained by taking moments of Boltzmann equation which are used in the hydrodynamic stage. In this work, we include the effects of both shear and bulk viscosities. At freeze-out, we use anisotropic Cooper-Frye freeze-out performed on a fixed-energy-density hypersurface to convert to hadrons. To model the production and decays of the hadrons we use THERMINATOR 2 which is customized to sample from ellipsoidal momentum-space distribution functions. Using smooth Glauber initial conditions, we find very good agreement with many heavy-ion collision observables.