Improvement of the Hot QCD Pressure by the Minimal Sensitivity Criterion

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Abstract

The principles of minimal sensitivity (PMS) criterion are applied to the perturbative free energy density, or pressure, of hot QCD, which include the ~ g^6_s In g_s and part of the ~ g^6_s 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 <MS>^^^- results. In particular, for the realistic case of three quark flavors, the "optimal" approximants are comparable with the lattice results.

Journal

  • Progress of Theoretical Physics

    Progress of Theoretical Physics 115(2), 411-424, 2006-02-25

    Published for the Yukawa Institute for Theoretical Physics and the Physical Society of Japan

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Codes

  • NII Article ID (NAID)
    110004656474
  • NII NACSIS-CAT ID (NCID)
    AA00791455
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    0033068X
  • NDL Article ID
    7831790
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z53-A468
  • Data Source
    CJP  NDL  NII-ELS 
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