Phase boundary for the chiral transition in ( 2 + 1 )-flavor QCD at small values of the chemical potential
By O. Kaczmarek, F. Karsch, E. Laermann, C. Miao, S. Mukherjee, P. Petreczky, C. Schmidt, W. Soeldner, W. Unger. 2010
176 citations recorded by the source corpus.
We determine the chiral phase transition line in (2+1)-flavor QCD for small values of the light quark chemical potential. We show that for small values of the chemical potential the curvature of the phase transition line can be deduced from an analysis of scaling properties of the chiral condensate and its susceptibilities. To do so we extend earlier studies of the magnetic equation of state in (2+1)-flavor QCD to finer lattice spacings, aT = 1/8. We use these universal scaling properties of the chiral order parameter to extract the curvature of the transition line at two values of the cut-off, aT = 1/4 and 1/8. We find that cut-off effects are small for the curvature parameter and determine the transition line in the chiral limit to leading order in the light quark chemical potential. We obtain Tc(µq)/Tc(0) = 1 0.059(2)(4)(µq/T) 2 + O(µ 4).
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/3a1e137ccc6f34d9553d8ca0fe62f1ff2e65a01b
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In Astronomy and Astrophysics
In Nuclear and High Energy Physics
- C. Fischer
- O. Kaczmarek
- P. Petreczky
- Sayantan Sharma
- E. Laermann
- A. Bazavov
- P. Hegde
- Alexander Rothkopf
Citations in the corpus
- Chiral crossover in QCD at zero and non-zero chemical potentials (2018, background): “tion, behaviors of chiral observables are governed by scaling properties of the 3D, O(4) universality class [16, 19]:”
- QCD at finite temperature and chemical potential from Dyson–Schwinger equations (2018, result): “While earlier lattice studies obtained lower values for the curvature [30, 31, 115], the recent continuum extrapolated results now indicate convergence between different methods (Taylor expansion techniques and analytical continuation from imaginary chemical potential) [32, 108–111].”