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research article
A gauge invariant Debye mass and the complex heavy-quark potential
2016
Following the original idea of Debye, we define and extract a gauge-invariant screening mass from the complex static in-medium heavy-quark potential V-Q (Q) over bar, recently obtained from lattice QCD. To this end we derive a formula using concepts from both effective-and classical field theories that faithfully reproduces both the screened real-and the imaginary part of the lattice potential with a single temperature dependent fit parameter m(D)(T). Using values of the real part of V-Q (Q) over bar in a gluonic medium, we obtain Debye masses compatible with HTL perturbation theory. (C) 2015 The Authors. Published by Elsevier B.V.
Type
research article
Web of Science ID
WOS:000368783600036
Authors
Publication date
2016
Publisher
Published in
Volume
753
Start page
232
End page
236
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
April 1, 2016
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