May 17 – 22, 2021
US/Eastern timezone

Off-of-equilibrium effects on Kurtosis Along Strangeness-Neutral Trajectories

May 18, 2021, 12:30 PM
Room A (Zoom)

Room A


zoom co-host: Niveditha Ramasubramanian


Travis Dore (University of Illinois at Urbana-Champaign)


The Beam Energy Scan program at RHIC (Relativistic Heavy Ion Collider)
is searching for the QCD critical point or a first order phase transition. The main signal for the
critical point is the kurtosis of the distribution of proton yields obtained on an event by
event basis where one expects a peak at the critical point. However, its exact behavior is
still an open question due to out-of-equilibrium effects and the current limitations of the equation of state at large densities. Here we
use a simplistic hydrodynamic model that enforces strangeness-neutrality, selecting on
trajectories that pass close to the critical point. We vary the initial conditions (in terms of how far-from-equilibrium they begin)
in order to estimate the effect of out-of-equilibrium hydrodynamics on the kurtosis signal.

Primary authors

Travis Dore (University of Illinois at Urbana-Champaign) Jamie Stafford (University of Houston) Jacquelyn Noronha-Hostler (University of Illinois Urbana Champaign) Claudia Ratti (University of Houston)

Presentation materials