Bayesian quantification of strongly-interacting matter with color glass condensate initial conditions

Abstract

A global Bayesian analysis of relativistic Pb + Pb collisions at ${\sqrt{s}}_{\mathrm{NN}}$ = 2.76 TeV is performed, using a multistage model consisting of an IP-Glasma initial state, a viscous fluid dynamical evolution, and a hadronic transport final state. The observables considered are from the soft sector hadronic final state. Posterior and Maximum a Posteriori parameter distributions that pertain to the IP-Glasma and hydrodynamic phases are obtained, including the shear and bulk specific viscosity of strong interacting matter. The first use of inference with transfer learning in heavy-ion analyses is presented, together with Bayes Model Averaging.

40 pages, 42 figures. Updated to reflect changes in accepted manuscript. Editor's Suggestion