Year: 1998
Type: article
Abstract: We calculate the chiral and thermal susceptibilities for two confining Dyson-Schwinger equation models of QCD with two light flavors, a quantitative analysis of which yields the critical exponents $\ensuremath{\beta}$ and $\ensuremath{\delta}$ that characterize the second-order chiral symmetry restoration transition. The method itself is of interest, minimizing the influence of numerical noise in the calculation of the order parameter for chiral symmetry breaking near the critical temperature. For the more realistic of the two models we estimate ${T}_{c}\ensuremath{\approx}153 $MeV and the non-mean-field values $\ensuremath{\beta}=0.46\ifmmode\pm\else\textpm\fi{}0.04$, $\ensuremath{\delta}=4.3\ifmmode\pm\else\textpm\fi{}0.3$, and $1/(\ensuremath{\beta}\ensuremath{\delta})=0.54\ifmmode\pm\else\textpm\fi{}0.05$, which we discuss in comparison with the results of other models.
Source: Physical Review C
Authors: D. Blaschke, A. Höll, C. D. Roberts, S. Schmidt
Institutions: University of Rostock, Argonne National Laboratory
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2026517081