Two-loop QCD gauge coupling at high temperatures

Laine M, Schroeder Y (2005)
JHEP 2005(03): 067.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
We determine the 2-loop effective gauge coupling of QCD at high temperatures, defined as a matching coeffcient appearing in the dimensionally reduced effective field theory. The result allows to improve on one of the classic non-perturbative probes for the convergence of the weak-coupling expansion at high temperatures, the comparison of full and effective theory determinations of an observable called the spatial string tension. We find surprisingly good agreement almost down to the critical temperature of the deconfinement phase transition. We also determine one new contribution of order O(g(6)T(4)) to the pressure of hot QCD.
Erscheinungsjahr
Zeitschriftentitel
JHEP
Band
2005
Zeitschriftennummer
03
Seite
067
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Laine M, Schroeder Y. Two-loop QCD gauge coupling at high temperatures. JHEP. 2005;2005(03):067.
Laine, M., & Schroeder, Y. (2005). Two-loop QCD gauge coupling at high temperatures. JHEP, 2005(03), 067. doi:10.1088/1126-6708/2005/03/067
Laine, M., and Schroeder, Y. (2005). Two-loop QCD gauge coupling at high temperatures. JHEP 2005, 067.
Laine, M., & Schroeder, Y., 2005. Two-loop QCD gauge coupling at high temperatures. JHEP, 2005(03), p 067.
M. Laine and Y. Schroeder, “Two-loop QCD gauge coupling at high temperatures”, JHEP, vol. 2005, 2005, pp. 067.
Laine, M., Schroeder, Y.: Two-loop QCD gauge coupling at high temperatures. JHEP. 2005, 067 (2005).
Laine, Mikko, and Schroeder, York. “Two-loop QCD gauge coupling at high temperatures”. JHEP 2005.03 (2005): 067.

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arXiv: hep-ph/0503061

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