In the Polyakov linear-sigma model, optimized perturbation theory agrees with lattice QCD better than the mean-field approximation for high-order cumulants of baryon, charge, and strangeness fluctuations.
Conclusions 14 Acknowledgements 14 References 14 ∗ Electronic address: tawfik@itp.uni-frankfurt.de 2 I
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Polyakov linear-sigma model in mean-field approximation and optimized perturbation theory
In the Polyakov linear-sigma model, optimized perturbation theory agrees with lattice QCD better than the mean-field approximation for high-order cumulants of baryon, charge, and strangeness fluctuations.