Second order hydrodynamics based on effective kinetic theory and electromagnetic signals from QGP

Abstract We study the thermal dilepton and photon production from relativistic heavy ion collisions in presence of viscosities by employing recently developed second order dissipative hydrodynamic formulation estimated within a quasiparticle description quantum chromo-dynamics (QCD) medium. The sensitivity shear bulk viscous pressures to temperature dependence relaxation time is analyzed one- dimensional boost invariant expansion quark gluon plasma (QGP). corrections phase-space distribution functions up first gradients are obtained Chapman–Enskog like iterative solution effective Boltzmann equation approximation. Thermal rates for QGP calculated this modified function. Yields these particles quantified longitudinal with different dependent times. Our analysis model indicates that spectra dileptons photons get enhanced both well behaved. Also, particle yields found be sensitive time. Further, we do comparison standard formulation.