Borsanyi, Sz and Endrodi, G. and Fodor, Z. and Katz, S. D. and Krieg, S. and Ratti, C. and Szabo, K. K. (2012) QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order mu(2). JOURNAL OF HIGH ENERGY PHYSICS (8): 053. ISSN 1029-8479,
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We determine the equation of state of QCD for nonzero chemical potentials via a Taylor expansion of the pressure. The results are obtained for N-f = 2 + 1 flavors of quarks with physical masses, on various lattice spacings. We present results for the pressure, interaction measure, energy density, entropy density, and the speed of sound for small chemical potentials. At low temperatures we compare our results with the Hadron Resonance Gas model. We also express our observables along trajectories of constant entropy over particle number. A simple parameterization is given (the Matlab/Octave script parameterization.m, submitted to the arXiv along with the paper), which can be used to reconstruct the observables as functions of T and mu, or as functions of T and S/N.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 2 FLAVOR QCD; TRANSITION-TEMPERATURE; LATTICE QCD; FREEZE-OUT; FLOW; Lattice QCD; Lattice Quantum Field Theory |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 May 2020 06:24 |
| Last Modified: | 07 May 2020 06:24 |
| URI: | https://pred.uni-regensburg.de/id/eprint/18319 |
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