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Title: Phenomenological constraints on the bulk viscosity of QCD

Abstract

While small at very high temperature, the bulk viscosity of Quantum Chromodynamics is expected to grow in the confinement region. Although its precise magnitude and temperature-dependence in the cross-over region is not fully understood, recent theoretical and phenomenological studies provided evidence that the bulk viscosity can be sufficiently large to have measurable consequences on the evolution of the quark-gluon plasma. In this study, a Bayesian statistical analysis is used to establish probabilistic constraints on the temperature-dependence of bulk viscosity using hadronic measurements from RHIC and LHC.

Authors:
 [1];  [2];  [3];  [4];  [4]
  1. Stony Brook Univ., Stony Brook, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ. Federal Fluminense (Brazil)
  4. McGill Univ., Montreal, QC (Canada)
Publication Date:
Research Org.:
The State Univ. of New York, Stony Brook, NY (United States); Brookhaven Science Assoc., LLC, Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1502372
Grant/Contract Number:  
[FG02-88ER40388; SC0012704]
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; Bulk viscosity; Quark-Gluon Plasma; Heavy-Ion Collisions

Citation Formats

Paquet, Jean -François, Shen, Chun, Denicol, Gabriel, Jeon, Sangyong, and Gale, Charles. Phenomenological constraints on the bulk viscosity of QCD. United States: N. p., 2017. Web. doi:10.1016/j.nuclphysa.2017.06.024.
Paquet, Jean -François, Shen, Chun, Denicol, Gabriel, Jeon, Sangyong, & Gale, Charles. Phenomenological constraints on the bulk viscosity of QCD. United States. doi:10.1016/j.nuclphysa.2017.06.024.
Paquet, Jean -François, Shen, Chun, Denicol, Gabriel, Jeon, Sangyong, and Gale, Charles. Mon . "Phenomenological constraints on the bulk viscosity of QCD". United States. doi:10.1016/j.nuclphysa.2017.06.024. https://www.osti.gov/servlets/purl/1502372.
@article{osti_1502372,
title = {Phenomenological constraints on the bulk viscosity of QCD},
author = {Paquet, Jean -François and Shen, Chun and Denicol, Gabriel and Jeon, Sangyong and Gale, Charles},
abstractNote = {While small at very high temperature, the bulk viscosity of Quantum Chromodynamics is expected to grow in the confinement region. Although its precise magnitude and temperature-dependence in the cross-over region is not fully understood, recent theoretical and phenomenological studies provided evidence that the bulk viscosity can be sufficiently large to have measurable consequences on the evolution of the quark-gluon plasma. In this study, a Bayesian statistical analysis is used to establish probabilistic constraints on the temperature-dependence of bulk viscosity using hadronic measurements from RHIC and LHC.},
doi = {10.1016/j.nuclphysa.2017.06.024},
journal = {Nuclear Physics. A},
number = [C],
volume = [967],
place = {United States},
year = {2017},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 2 works
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Figures / Tables:

Fig. 1. Fig. 1. : Probability distributions for the bulk viscosity normalization (top left panel), width (top middle panel), peak temperature (top right panel), energy-momentum normalization (bottom left panel), and shear viscosity to entropy density ratio (bottom right panel). Results obtained for RHIC (200 GeV per nucleon) are shown in green whilemore » results for LHC lowest energy (2.76 TeV per nucleon) are shown in blue.« less

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.