arXiv:hep-ph/9708207·v1·High Energy Physics — Phenomenology
Non-perturbative Debye mass in finite T QCD
K. Kajantie (1,2)🇨🇭 · M. Laine (3)🇩🇪 · J. Peisa (4)🇬🇧 · A. Rajantie (2)🇫🇮 · K. Rummukainen (5)🇩🇪 · M. Shaposhnikov (1) ((1) CERN Theory Division, (2) University of Helsinki, (3) Heidelberg University, (4) University of Liverpool, (5) Bielefeld University)🇨🇭
Abstract
Employing a non-perturbative gauge invariant definition of the Debye screening mass m_D in the effective field theory approach to finite T QCD, we use 3d lattice simulations to determine the leading O(g^2) and to estimate the next-to-leading O(g^3) corrections to m_D in the high temperature region. The O(g^2) correction is large and modifies qualitatively the standard power-counting hierarchy picture of correlation lengths in high temperature QCD.
Comments: 4 pages, Latex