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arXiv · 2302.09478

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

Matthew R. Heffernan·Charles Gale·Sangyong Jeon·Jean-François Paquet
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Abstract

A global Bayesian analysis of relativistic Pb + Pb collisions at $\sqrt{s}_{\rm NN}$ = 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.

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Matthew R. Heffernan, Charles Gale, Sangyong Jeon, Jean-François Paquet. 2023-02-19. Bayesian quantification of strongly-interacting matter with color glass condensate initial conditions. https://doi.org/10.1103/physrevc.109.065207

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