Anisotropic hydrodynamics approach to dilepton emission from quark-gluon plasma

Dileptons can provide information about different stages of evolution of the matter generated in heavy-ion collisions. Particularly, emission of the intermediate-mass dileptons are affected by statistical properties of the quark-gluon plasma. To model the evolution of a non-equilibrium quark-gluon plasma, relativistic anisotropic hydrodynamics takes into account the anisotropy of momentum distributions of the system constituents. We convolve the anisotropic hydrodynamic evolution with the local rest frame production rates of dileptons modified by the momentum anisotropic medium to calculate the differential yield and elliptic flow of dileptons emitted from quark-gluon plasma. We investigate effects of the model parameters on the observable quantities that can be extracted from heavy-ion collision experiments.