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Type: Journal article
Title: Deconfinement at finite chemical potential
Author: Bender, A.
Poulis, G.
Roberts, C.
Schmidt, S.
Thomas, A.
Citation: Physics Letters B: Nuclear Physics and Particle Physics, 1998; 431(3-4):263-269
Issue Date: 1998
ISSN: 0370-2693
Statement of
A. Bender, G. I. Poulis, C. D. Roberts, S. Schmidt and A. W. Thomas
Abstract: In a confining, renormalisable, Dyson-Schwinger equation model of two-flavour QCD we explore the chemical-potential dependence of the dressed-quark propagator, which provides a means of determining the behaviour of the chiral and deconfinement order parameters, and low-energy pion observables. We find coincident, first order deconfinement and chiral symmetry restoration transitions at μc = 375 MeV.fπ is insensitive to μ until μ ≈ μ0: = 0.7 μc when it begins to increase rapidly. mπ is weakly dependent on μ, decreasing slowly with μ and reaching a minimum 6% less than its μ = 0 value at μ = μ0. In a two-flavour free-quark gas at μ = μc the baryon number density would be approximately 3 ρ0, where ρ0 = 0.16 fm-3; while in such a gas at μ0 the density is ρ0. © 1998 Published by Elsevier Science B.V. All rights reserved.
Description: Copyright © 1998 Published by Elsevier Science B.V. All rights reserved
DOI: 10.1016/S0370-2693(98)00546-2
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