Determination of Quark-Gluon-Plasma Parameters from a Global Bayesian Analysis


Journal Article

© 2017 The Author(s) The quality of data taken at RHIC and LHC as well as the success and sophistication of computational models for the description of ultra-relativistic heavy-ion collisions have advanced to a level that allows for the quantitative extraction of the transport properties of the Quark-Gluon-Plasma. However, the complexity of this task as well as the computational effort associated with it can only be overcome by developing novel methodologies: in this paper we outline such an analysis based on Bayesian Statistics and systematically compare an event-by-event heavy-ion collision model to data from the Large Hadron Collider. We simultaneously probe multiple model parameters including fundamental quark-gluon plasma properties such as the temperature-dependence of the specific shear viscosity η/s, calibrate the model to optimally reproduce experimental data, and extract quantitative constraints for all parameters simultaneously. The method is universal and easily extensible to other data and collision models.

Full Text

Duke Authors

Cited Authors

  • Bass, SA; Bernhard, J; Moreland, JS

Published Date

  • November 1, 2017

Published In

Volume / Issue

  • 967 /

Start / End Page

  • 67 - 73

International Standard Serial Number (ISSN)

  • 0375-9474

Digital Object Identifier (DOI)

  • 10.1016/j.nuclphysa.2017.05.052

Citation Source

  • Scopus