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

Abstract

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. As a result, the method is universal and easily extensible to other data and collision models.

Authors:
 [1];  [1];  [1]
  1. Duke Univ., Durham, NC (United States). Dept. of Physics
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center
Sponsoring Org.:
USDOE
OSTI Identifier:
1478659
Grant/Contract Number:  
[FG02-05ER41367]
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Physics. A
Additional Journal Information:
[ Journal Volume: 967; Journal Issue: C]; Journal ID: ISSN 0375-9474
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Quark-Gluon-Plasma; model-to-data comparison; Bayesian analysis

Citation Formats

Bass, Steffen A., Bernhard, Jonah, and Moreland, J. Scott. Determination of Quark-Gluon-Plasma Parameters from a Global Bayesian Analysis. United States: N. p., 2017. Web. doi:10.1016/j.nuclphysa.2017.05.052.
Bass, Steffen A., Bernhard, Jonah, & Moreland, J. Scott. Determination of Quark-Gluon-Plasma Parameters from a Global Bayesian Analysis. United States. doi:10.1016/j.nuclphysa.2017.05.052.
Bass, Steffen A., Bernhard, Jonah, and Moreland, J. Scott. Mon . "Determination of Quark-Gluon-Plasma Parameters from a Global Bayesian Analysis". United States. doi:10.1016/j.nuclphysa.2017.05.052. https://www.osti.gov/servlets/purl/1478659.
@article{osti_1478659,
title = {Determination of Quark-Gluon-Plasma Parameters from a Global Bayesian Analysis},
author = {Bass, Steffen A. and Bernhard, Jonah and Moreland, J. Scott},
abstractNote = {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. As a result, the method is universal and easily extensible to other data and collision models.},
doi = {10.1016/j.nuclphysa.2017.05.052},
journal = {Nuclear Physics. A},
number = [C],
volume = [967],
place = {United States},
year = {2017},
month = {9}
}

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