Far-from-equilibrium initial conditions and the search for the QCD critical point

by Mr Travis Dore (Illinois University, USA)

Tuesday 22 Dec 2020, 18:30 → 20:30 Asia/Tehran

Online

Webinar on Quark Matter and Relativistic Hydrodynamics

Abstract:

Initial conditions for relativistic heavy-ion collisions may be far-from-equilibrium, but it is expected that on very short time scales the dynamics converge to a universal attractor that defines hydrodynamic behavior. We investigate how far-from-equilibrium effects may influence experimentally driven searches for the Quantum Chromodynamic critical point at RHIC. We find that the path to the critical point is heavily influenced by far from equilibrium initial conditions where viscous effects lead to dramatically different{T,μ_B​} trajectories through the QCD phase diagram. We compare hydrodynamic equations of motion with shear and bulk coupled together at finite μB​ for both DNMR and phenomenological Israel-Stewart equations of motion and discuss their influence on potential attractors at finite μ_B​ and their corresponding{T,μ_B​} trajectories. First, we explore this systematically in a 0+1 system exhibiting Bjorken symmetries and then we relax these symmetries and investigate the implementation of this kind of study for 2+1 viscous BSQ hydrodynamics.

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