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QCD equation of state at finite densities for nuclear collisions

Journal Article · · Nuclear Physics. A
 [1];  [2];  [3]
  1. Japan Women's Univ., Tokyo (Japan); High Energy Accelerator Research Organization, Tsukuba (Japan). KEK Theory Center
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Wayne State Univ., Detroit, MI (United States); Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center
+ Show Author Affiliations
In this work, we construct the QCD equation of state at finite chemical potentials including net baryon, electric charge, and strangeness based on the results of lattice QCD simulations and the hadron resonance gas model. The situation of strangeness neutrality and a fixed charge-to-baryon ratio, which resembles that of heavy nuclei, is considered for the application to relativistic heavy-ion collisions. This increases the values of baryon chemical potential compared to the case of vanishing strangeness and electric charge chemical potentials, modifying the fireball trajectory in the phase diagram. We perform viscous hydrodynamic simulations and demonstrate the importance of multiple chemical potentials for identified particle production in heavy-ion collisions at the RHIC and SPS beam energy scan energies.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
JSPS KAKENHI; USDOE; USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-05CH11231; SC0012704; SC0013460
OSTI ID:
1763346
Alternate ID(s):
OSTI ID: 1760931
Report Number(s):
BNL-220898-2021--JAAM
Journal Information:
Nuclear Physics. A, Journal Name: Nuclear Physics. A Vol. 1005; ISSN 0375-9474
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Equation of state at finite densities for QCD matter in nuclear collisions journal August 2019
Lattice-based equation of state at finite baryon number, electric charge, and strangeness chemical potentials journal December 2019
Comparison of chemical freeze-out criteria in heavy-ion collisions journal March 2006
Dynamical initial-state model for relativistic heavy-ion collisions journal February 2018
Fluctuations and correlations of net baryon number, electric charge, and strangeness: A comparison of lattice QCD results with the hadron resonance gas model journal August 2012
Equation of state in ( 2 + 1 )-flavor QCD journal November 2014
Diagonal and off-diagonal quark number susceptibilities at high temperatures journal October 2015
QCD equation of state to O ( μ B 6 ) from lattice QCD journal March 2017
Elliptic and Triangular Flow in Event-by-Event D = 3 + 1 Viscous Hydrodynamics journal January 2011

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
finite density
heavy-ion collision
quantum chromodynamics
thermodynamics