Perturbative renormalization of the electric field correlator

Christensen, Christian Holm; Laine, Mikko Sakari (2016). Perturbative renormalization of the electric field correlator. Physics letters. B, 755, pp. 316-323. Elsevier 10.1016/j.physletb.2016.02.020

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The momentum diffusion coefficient of a heavy quark in a hot QCD plasma can be extracted as a transport coefficient related to the correlator of two colour-electric fields dressing a Polyakov loop. We determine the perturbative renormalization factor for a particular lattice discretization of this correlator within Wilson’s SU(3) gauge theory, finding a ∼12% NLO correction for values of the bare coupling used in the current generation of simulations. The impact of this result on existing lattice determinations is commented upon, and a possibility for non-perturbative renormalization through the gradient flow is pointed out.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Christensen, Christian Holm and Laine, Mikko Sakari

Subjects:

500 Science > 530 Physics

ISSN:

0370-2693

Publisher:

Elsevier

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

22 Aug 2016 13:49

Last Modified:

22 Aug 2016 13:49

Publisher DOI:

10.1016/j.physletb.2016.02.020

ArXiv ID:

1601.01573

BORIS DOI:

10.7892/boris.86108

URI:

https://boris.unibe.ch/id/eprint/86108

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