skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fluidity and supercriticality of the QCD matter created in relativistic heavy ion collisions

Abstract

Here, we discuss the fluidity of the hot and dense QCD matter created in ultrarelativistic heavy ion collisions in comparison with various other fluids and, in particular, suggest its possible supercriticality. After examining the proper way to compare nonrelativistic and relativistic fluids from both thermodynamic and hydrodynamic perspectives, we propose a new fluidity measure that shows certain universality for a remarkable diversity of critical fluids. We then demonstrate that a fluid in its supercritical regime has its fluidity considerably enhanced. This result may suggest a possible relationship between the seemingly good fluidity of the QCD matter produced in heavy ion collisions at a center-of-mass energy of $$ \sqrt{s}$$=200A GeV and the supercriticality of this matter with respect to the critical end point on the QCD phase diagram. Based on this observation, we predict an even better fluidity of the matter to be created in heavy ion collisions at Large Hadron Collider energies and the loss of good fluidity at certain, lower beam energy. Lastly, based on our criteria, we analyze the suitability of a hydrodynamic description for the fireball evolution in heavy ion collisions at various energies.

Authors:
 [1];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1530202
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 81; Journal Issue: 1; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Liao, Jinfeng, and Koch, Volker. Fluidity and supercriticality of the QCD matter created in relativistic heavy ion collisions. United States: N. p., 2010. Web. doi:10.1103/physrevc.81.014902.
Liao, Jinfeng, & Koch, Volker. Fluidity and supercriticality of the QCD matter created in relativistic heavy ion collisions. United States. doi:10.1103/physrevc.81.014902.
Liao, Jinfeng, and Koch, Volker. Thu . "Fluidity and supercriticality of the QCD matter created in relativistic heavy ion collisions". United States. doi:10.1103/physrevc.81.014902. https://www.osti.gov/servlets/purl/1530202.
@article{osti_1530202,
title = {Fluidity and supercriticality of the QCD matter created in relativistic heavy ion collisions},
author = {Liao, Jinfeng and Koch, Volker},
abstractNote = {Here, we discuss the fluidity of the hot and dense QCD matter created in ultrarelativistic heavy ion collisions in comparison with various other fluids and, in particular, suggest its possible supercriticality. After examining the proper way to compare nonrelativistic and relativistic fluids from both thermodynamic and hydrodynamic perspectives, we propose a new fluidity measure that shows certain universality for a remarkable diversity of critical fluids. We then demonstrate that a fluid in its supercritical regime has its fluidity considerably enhanced. This result may suggest a possible relationship between the seemingly good fluidity of the QCD matter produced in heavy ion collisions at a center-of-mass energy of $ \sqrt{s}$=200A GeV and the supercriticality of this matter with respect to the critical end point on the QCD phase diagram. Based on this observation, we predict an even better fluidity of the matter to be created in heavy ion collisions at Large Hadron Collider energies and the loss of good fluidity at certain, lower beam energy. Lastly, based on our criteria, we analyze the suitability of a hydrodynamic description for the fireball evolution in heavy ion collisions at various energies.},
doi = {10.1103/physrevc.81.014902},
journal = {Physical Review. C, Nuclear Physics},
number = 1,
volume = 81,
place = {United States},
year = {2010},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Is There a “Most Perfect Fluid” Consistent with Quantum Field Theory?
journal, July 2007


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


Nearly perfect fluidity: from cold atomic gases to hot quark gluon plasmas
journal, November 2009


Shear Viscosity of Strongly Coupled N = 4 Supersymmetric Yang-Mills Plasma
journal, August 2001


Effective theory of Wilson lines and deconfinement
journal, December 2006


Liquidlike Behavior of Supercritical Fluids
journal, December 2006


Lattice determination of the critical point of QCD at finite T and μ
journal, March 2002


Event-by-event fluctuations in heavy ion collisions and the QCD critical point
journal, November 1999


Strongly Interacting Low-Viscosity Matter Created in Relativistic Nuclear Collisions
journal, October 2006


Fluid Mechanics
journal, May 1961

  • Landau, L. D.; Lifshitz, E. M.; Sykes, J. B.
  • Physics Today, Vol. 14, Issue 5
  • DOI: 10.1063/1.3057567

Critical point of QCD at finite T and  , lattice results for physical quark masses
journal, April 2004


Exposing the Noncollectivity in Elliptic Flow
journal, July 2009


Transport Coefficients of Hadronic Matter Near T c
journal, October 2009


QCD equation of state with almost physical quark masses
journal, January 2008


Thermodynamics of two flavor QCD to sixth order in quark chemical potential
journal, March 2005


A sticky business: the status of the conjectured viscosity/entropy density bound
journal, February 2008


Polymer chains and baryons in a strongly coupled quark–gluon plasma
journal, September 2006


Relativistic Shock Waves in Viscous Gluon Matter
journal, July 2009


Ratio of shear viscosity to entropy density for trapped fermions in the unitarity limit
journal, December 2007


Does interferometry probe thermalization?
journal, May 2009


Simple patterns for nonlinear susceptibilities near T c
journal, September 2005


Phase transition dynamics for baryon-dense matter
journal, May 2009


The Magnetic Component of Quark-Gluon Plasma is also a Liquid
journal, October 2008


Improved hydrodynamics from the AdS/CFT duality
journal, September 2009


The QCD phase diagram for three degenerate flavors and small baryon density
journal, November 2003


On the critical end point of QCD
journal, June 2005


Has the QCD Critical Point Been Signaled by Observations at the BNL Relativistic Heavy Ion Collider?
journal, March 2007


Statistical Mechanics
journal, January 1965

  • Huang, Kerson; Holbrow, C. H.
  • Physics Today, Vol. 18, Issue 1
  • DOI: 10.1063/1.3047170

Fast heat transfer calculations in supercritical fluids versus hydrodynamic approach
journal, June 2003


From kinetic theory to dissipative fluid dynamics
journal, April 2009


Adiabatic and isothermal sound waves: The case of supercritical nitrogen
journal, July 2006


Measurement of Sound Velocity in a Fermi Gas near a Feshbach Resonance
journal, April 2007


Fluids at high pressures and temperatures
journal, March 1987


Strongly coupled plasma with electric and magnetic charges
journal, May 2007


Dissipative phenomena in quark-gluon plasmas
journal, January 1985


Hydrodynamic radial and elliptic flow in heavy-ion collisions from AGS to LHC energies
journal, December 2008


Is a Gas of Strongly Interacting Atomic Fermions a Nearly Perfect Fluid?
journal, November 2007

  • Turlapov, A.; Kinast, J.; Clancy, B.
  • Journal of Low Temperature Physics, Vol. 150, Issue 3-4
  • DOI: 10.1007/s10909-007-9589-1

What do lattice baryonic susceptibilities tell us about quarks, diquarks, and baryons at T > T c ?
journal, January 2006


Scaling behaviour of observables in heavy ion collisions
journal, January 1988


How much entropy is produced in strongly coupled quark-gluon plasma (sQGP) by dissipative effects?
journal, August 2007


Density, short-range order, and the quark-gluon plasma
journal, January 2009


Perfect fluidity of the quark–gluon plasma core as seen through its dissipative hadronic corona
journal, April 2006


Baryon number, strangeness, and electric charge fluctuations in QCD at high temperature
journal, April 2009


Hadron production in Au–Au collisions at RHIC
journal, October 2001


Suppression of the shear viscosity in a “semi”-quark-gluon plasma
journal, October 2008


Angular Dependence of Jet Quenching Indicates Its Strong Enhancement near the QCD Phase Transition
journal, May 2009


Elliptic Flow at Large Viscosity
journal, November 2009


Magnetic Component of Yang-Mills Plasma
journal, February 2007


Perturbative QCD Calculations of Elliptic Flow and Shear Viscosity in Au + Au Collisions at s N N = 200 GeV
journal, August 2008


Change of collective-flow mechanism indicated by scaling analysis of transverse flow
journal, August 1987


Signatures of the Tricritical Point in QCD
journal, November 1998


    Works referencing / citing this record:

    Description of hot and dense hadron-gas properties in a new excluded-volume model
    journal, January 2012


    Description of hot and dense hadron-gas properties in a new excluded-volume model
    journal, January 2012