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Title: Towards QCD-assisted hydrodynamics for heavy-ion collision phenomenology

Abstract

Heavy-ion collisions are well described by a dynamical evolution with a long hydrodynamical phase. In this phase the properties of the strongly coupled quark-gluon plasma are reflected in the equation of state (EoS) and the transport coefficients, most prominently by the shear and bulk viscosity over entropy density ratios η/s(T) and ς/s(T), respectively. While the EoS is by now known to a high accuracy, the transport coefficients and in particular their temperature and density dependence are not well known from first-principle computations yet, as well as the possible influence they can have once used in hydrodynamical simulations. In this work, the most recent QCD-based parameters are provided as input to the MUSIC framework. A ratio η/s(T) computed with a QCD based approach is used for the first time [1, 2]. The IP-Glasma model is used to describe the initial energy density distribution, and UrQMD for the dilute hadronic phase. Simulations are performed for Pb–Pb collisions at √sNN = 2.76 TeV, for different centrality intervals. The resulting kinematic distributions of the particles produced in the collisions are compared to data from the LHC, for several experimental observables. Furthermore, the high precision of the experimental results and the broad variety of observablesmore » considered allow to critically verify the quality of the description based on first-principle input to the hydrodynamic evolution.« less

Authors:
 [1];  [1];  [2];  [3]; ORCiD logo [3];  [2]
  1. Univ. Heidelberg, Heidelberg (Germany); GSI Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
  2. Univ. Heidelberg, Heidelberg (Germany)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1483751
Alternate Identifier(s):
OSTI ID: 1636504
Report Number(s):
BNL-209510-2018-JAAM
Journal ID: ISSN 0375-9474
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Physics. A
Additional Journal Information:
Journal Volume: 979; Journal Issue: C; Journal ID: ISSN 0375-9474
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Initial conditions; Fluid dynamics; Transport coefficients

Citation Formats

Dubla, Andrea, Masciocchi, S., Pawlowski, J. M., Schenke, Bjoern, Shen, C., and Stachel, J. Towards QCD-assisted hydrodynamics for heavy-ion collision phenomenology. United States: N. p., 2018. Web. doi:10.1016/j.nuclphysa.2018.09.046.
Dubla, Andrea, Masciocchi, S., Pawlowski, J. M., Schenke, Bjoern, Shen, C., & Stachel, J. Towards QCD-assisted hydrodynamics for heavy-ion collision phenomenology. United States. https://doi.org/10.1016/j.nuclphysa.2018.09.046
Dubla, Andrea, Masciocchi, S., Pawlowski, J. M., Schenke, Bjoern, Shen, C., and Stachel, J. Tue . "Towards QCD-assisted hydrodynamics for heavy-ion collision phenomenology". United States. https://doi.org/10.1016/j.nuclphysa.2018.09.046. https://www.osti.gov/servlets/purl/1483751.
@article{osti_1483751,
title = {Towards QCD-assisted hydrodynamics for heavy-ion collision phenomenology},
author = {Dubla, Andrea and Masciocchi, S. and Pawlowski, J. M. and Schenke, Bjoern and Shen, C. and Stachel, J.},
abstractNote = {Heavy-ion collisions are well described by a dynamical evolution with a long hydrodynamical phase. In this phase the properties of the strongly coupled quark-gluon plasma are reflected in the equation of state (EoS) and the transport coefficients, most prominently by the shear and bulk viscosity over entropy density ratios η/s(T) and ς/s(T), respectively. While the EoS is by now known to a high accuracy, the transport coefficients and in particular their temperature and density dependence are not well known from first-principle computations yet, as well as the possible influence they can have once used in hydrodynamical simulations. In this work, the most recent QCD-based parameters are provided as input to the MUSIC framework. A ratio η/s(T) computed with a QCD based approach is used for the first time [1, 2]. The IP-Glasma model is used to describe the initial energy density distribution, and UrQMD for the dilute hadronic phase. Simulations are performed for Pb–Pb collisions at √sNN = 2.76 TeV, for different centrality intervals. The resulting kinematic distributions of the particles produced in the collisions are compared to data from the LHC, for several experimental observables. Furthermore, the high precision of the experimental results and the broad variety of observables considered allow to critically verify the quality of the description based on first-principle input to the hydrodynamic evolution.},
doi = {10.1016/j.nuclphysa.2018.09.046},
journal = {Nuclear Physics. A},
number = C,
volume = 979,
place = {United States},
year = {Tue Sep 25 00:00:00 EDT 2018},
month = {Tue Sep 25 00:00:00 EDT 2018}
}

Journal Article:

Citation Metrics:
Cited by: 21 works
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Figures / Tables:

Figure 1 Figure 1: Left panel: Analytic function for $η$/s(T) as a function of temperature as given in (2). Right panel: The $ζ$/s(T) parametrization as a function of temperature.

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Works referenced in this record:

Full result for the QCD equation of state with <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:mn>2</mml:mn><mml:mo>+</mml:mo><mml:mn>1</mml:mn></mml:math> flavors
journal, March 2014


Equation of state in ( 2 + 1 )-flavor QCD
journal, November 2014


The QCD equation of state at finite density from analytical continuation
journal, January 2017


QCD equation of state to O ( μ B 6 ) from lattice QCD
journal, March 2017


Hydrodynamic Modeling of Heavy-Ion Collisions
journal, April 2013

  • Gale, Charles; Jeon, Sangyong; Schenke, BjÖRn
  • International Journal of Modern Physics A, Vol. 28, Issue 11
  • DOI: 10.1142/S0217751X13400113

Hydrodynamic approaches in relativistic heavy ion reactions
journal, January 2016


Conformal relativistic viscous hydrodynamics: Applications to RHIC results at s NN = 200 GeV
journal, September 2008


Microscopic models for ultrarelativistic heavy ion collisions
journal, January 1998


Applying Bayesian parameter estimation to relativistic heavy-ion collisions: Simultaneous characterization of the initial state and quark-gluon plasma medium
journal, August 2016


Quark susceptibility in hot QCD
journal, December 1992


Transport Coefficients of a Gluon Plasma
journal, February 2005


Calculation of the shear viscosity in SU(3) gluodynamics
journal, November 2007


Gluon spectral functions and transport coefficients in Yang-Mills theory
journal, November 2014


Transport Coefficients in Yang-Mills Theory and QCD
journal, September 2015


Quark-antiquark potential in the analytic approach to QCD
journal, October 2000


Nonperturbative finite-temperature Yang-Mills theory
journal, March 2018


Importance of the Bulk Viscosity of QCD in Ultrarelativistic Heavy-Ion Collisions
journal, September 2015


Effect of bulk viscosity on elliptic flow near the QCD phase transition
journal, December 2009


Transient relativistic thermodynamics and kinetic theory
journal, April 1979


The iEBE-VISHNU code package for relativistic heavy-ion collisions
journal, February 2016


Hydrodynamic predictions for Pb+Pb collisions at 5.02 TeV
journal, June 2017


Centrality Dependence of the Charged-Particle Multiplicity Density at Midrapidity in Pb-Pb Collisions at s NN = 2.76 TeV
journal, January 2011


Spectra and elliptic flow for identified hadrons in 2.76 A TeV Pb + Pb collisions
journal, March 2014


Shear-Viscosity to Entropy-Density Ratio of a Relativistic Hadron Gas
journal, May 2009


Shear viscosity of a hadron gas and influence of resonance lifetimes on relaxation time
journal, May 2018


Higher Harmonic Anisotropic Flow Measurements of Charged Particles in Pb-Pb Collisions at s N N = 2.76 TeV
journal, July 2011


Influence of Shear Viscosity of Quark-Gluon Plasma on Elliptic Flow in Ultrarelativistic Heavy-Ion Collisions
journal, May 2011


Moving Forward to Constrain the Shear Viscosity of QCD Matter
journal, May 2016


Higher flow harmonics from ( 3 + 1 ) D event-by-event viscous hydrodynamics
journal, February 2012


Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb–Pb collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi mathvariant="normal">NN</mml:mi></mml:mrow></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>2.76</mml:mn><mml:mtext> TeV</mml:mtext></mml:math>
journal, February 2013


Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
journal, March 2005


Thermal dynamics on the lattice with exponentially improved accuracy
journal, March 2018


Flow equations for spectral functions at finite external momenta
journal, October 2014


Real time correlation functions and the functional renormalization group
journal, November 2015


Self-consistent spectral functions in the O ( N ) model from the functional renormalization group
journal, April 2017


Works referencing / citing this record:

Explicit form of the R- ratio of electron–positron annihilation into hadrons
journal, October 2019


Fluid dynamics of heavy ion collisions with mode expansion
journal, July 2019


QCD phase structure at finite temperature and density
text, January 2020

  • Fu, Wei-Jie; Pawlowski, Jan M.; Rennecke, Fabian
  • GSI Helmholtzzentrum fuer Schwerionenforschung, GSI, Darmstadt
  • DOI: 10.15120/gsi-2021-00689

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