Jet quenching parameter within a baryon-dense quark-gluon plasma from holographic black holes

We investigate the properties of hot and strongly coupled quark-gluon plasma using an Einstein-Maxwell-dilaton model, which is based on the gravity/gauge duality framework. Our approach employs a five-dimensional holographic black hole model, calibrated to match the lattice QCD equation of state at zero chemical potential. The model, with updated parametrization, exhibits a line of first-order phase transition at high chemical potential, with a critical point located at T = 103.5 MeV and μ_B = 597.5 MeV . Here we focus on studying the jet quenching parameter in a baryon-rich quark-gluon plasma, particularly along the line of first order phase transition and in the vicinity of the critical point. Additionally, we show how Bjorken flow can be applied to derive a time-dependent holographic jet quenching parameter, which plays a crucial role in understanding jet energy loss for both modeling and phenomenological applications.