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arXiv · hep-ph/0501277

Improvement of the hot QCD pressure by the minimal sensitivity criterion

M. Inui·A. Niegawa·H. Ozaki
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Abstract

The principles of minimal sensitivity (PMS) criterion is applied to the perturbative free energy density, or pressure, of hot QCD, which include the $\sim g_s^6 \ln g_s$ and part of the $\sim g_s^6$ terms. Applications are made separately to the short- and long-distance parts of the pressure. Comparison with the lattice results, at low temperatures, shows that the resultant `` optimal'' approximants are substantially improved when compared to the $\bar{MS}$ results. In particular, for the realistic case of three quark flavors, the `` optimal'' approximants are comparable with the lattice results.

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M. Inui, A. Niegawa, H. Ozaki. 2006-01-12. Improvement of the hot QCD pressure by the minimal sensitivity criterion. https://doi.org/10.1143/ptp.115.411

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