Equation of state dependence of directed flow in a microscopic transport model

Understand

We study the sensitivities of the directed flow in Au+Au collisions on the equation of state (EoS), employing the transport theoretical model JAM.

• The EoS is modified by introducing a new collision term in order to control the pressure of a system by appropriately selecting an azimuthal angle in two-body collisions according to a given EoS.
• It is shown that this approach is an efficient method to modify the EoS in a transport model.
• The beam energy dependence of the directed flow of protons is examined with two different EoS, a first-order phase transition and crossover.