Bayesian calibration of a hybrid nuclear collision model using p−Pb and Pb-Pb data at energies available at the CERN Large Hadron Collider

• DOI: 10.1103/physrevc.101.024911
• Publication Date: 2020-02-21T16:08:51Z
• Authors: J. Scott Moreland; Jonah E. Bernhard; Steffen A. Bass
• Keywords: 0103 physical sciences; 01 natural sciences

We posit a unified hydrodynamic and microscopic description of the quark-gluon plasma (QGP) produced in ultrarelativistic $p$-Pb Pb-Pb collisions at $\sqrt{s_\mathrm{NN}}=5.02$ TeV evaluate our assertion using Bayesian inference. Specifically, we model dynamics both collision systems initial conditions with parametric nucleon substructure, pre-equilibrium free-streaming stage, event-by-event viscous hydrodynamics, hadronic afterburner. Free parameters which describe state QGP medium are then simultaneously calibrated to fit charged particle yields, mean $p_T$, flow cumulants. argue that global agreement experimental data strongly supports existence small energies, develops length scales smaller than single proton. Posterior estimates for model's input obtained, new insights into temperature dependence transport coefficients structure proton discussed.