## QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order μ 2

Borsányi S, Endrödi G, Fodor Z, Katz SD, Krieg S, Ratti C, Szabó KK (2012)
Journal of High Energy Physics 2012(8): 53.

Zeitschriftenaufsatz | Veröffentlicht | Englisch

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Autor*in
Borsányi, Sz.; Endrödi, GergelyUniBi; Fodor, Z.; Katz, S. D.; Krieg, S.; Ratti, C.; Szabó, K. K.
Abstract / Bemerkung
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 μ, or as functions of T and S/N.
Erscheinungsjahr
2012
Zeitschriftentitel
Journal of High Energy Physics
Band
2012
Ausgabe
8
Art.-Nr.
53
eISSN
1029-8479
Page URI
https://pub.uni-bielefeld.de/record/2955762

## Zitieren

Borsányi S, Endrödi G, Fodor Z, et al. QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order μ 2. Journal of High Energy Physics. 2012;2012(8): 53.
Borsányi, S., Endrödi, G., Fodor, Z., Katz, S. D., Krieg, S., Ratti, C., & Szabó, K. K. (2012). QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order μ 2. Journal of High Energy Physics, 2012(8), 53. https://doi.org/10.1007/JHEP08(2012)053
Borsányi, Sz., Endrödi, Gergely, Fodor, Z., Katz, S. D., Krieg, S., Ratti, C., and Szabó, K. K. 2012. “QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order μ 2”. Journal of High Energy Physics 2012 (8): 53.
Borsányi, S., Endrödi, G., Fodor, Z., Katz, S. D., Krieg, S., Ratti, C., and Szabó, K. K. (2012). QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order μ 2. Journal of High Energy Physics 2012:53.
Borsányi, S., et al., 2012. QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order μ 2. Journal of High Energy Physics, 2012(8): 53.
S. Borsányi, et al., “QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order μ 2”, Journal of High Energy Physics, vol. 2012, 2012, : 53.
Borsányi, S., Endrödi, G., Fodor, Z., Katz, S.D., Krieg, S., Ratti, C., Szabó, K.K.: QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order μ 2. Journal of High Energy Physics. 2012, : 53 (2012).
Borsányi, Sz., Endrödi, Gergely, Fodor, Z., Katz, S. D., Krieg, S., Ratti, C., and Szabó, K. K. “QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order μ 2”. Journal of High Energy Physics 2012.8 (2012): 53.
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