New nonperturbative approach to the Debye mass in hot QCD
High Energy Physics - Phenomenology
2014-11-18 v3 High Energy Physics - Lattice
High Energy Physics - Theory
Nuclear Theory
Abstract
The Debye mass m_D is computed nonperturbatively in the deconfined phase of QCD, where chromomagnetic confinement is known to be present. The latter defines m_D to be m_D=c_D\sqrt{\sigma_s}, where c_D \cong 2.06 and \sigma_s=\sigma_s(T) is the spatial string tension. The resulting magnitude of m_D(T) and temperature dependence are in good agreement with lattice calculations. Background perturbation theory expansion for m_D(T) is discussed in comparison to standard perturbative results and recent gauge-invariant definitions.
Cite
@article{arxiv.hep-ph/0604004,
title = {New nonperturbative approach to the Debye mass in hot QCD},
author = {N. O. Agasian and Yu. A. Simonov},
journal= {arXiv preprint arXiv:hep-ph/0604004},
year = {2014}
}
Comments
14 pages, 4 figures; new figures and discussion added; to appear in Phys.Lett.B