Light-cone Wilson loop in classical lattice gauge theory

Laine, Mikko; Rothkopf, Alexander (2013). Light-cone Wilson loop in classical lattice gauge theory. Journal of High Energy Physics, 2013(7), 082. Springer 10.1007/JHEP07(2013)082

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The transverse broadening of an energetic jet passing through a non-Abelian plasma is believed to be described by the thermal expectation value of a light-cone Wilson loop. In this exploratory study, we measure the light-cone Wilson loop with classical lattice gauge theory simulations. We observe, as suggested by previous studies, that there are strong interactions already at short transverse distances, which may lead to more efficient jet quenching than in leading-order perturbation theory. We also verify that the asymptotics of the Wilson loop do not change qualitatively when crossing the light cone, which supports arguments in the literature that infrared contributions to jet quenching can be studied with dimensionally reduced simulations in the space-like domain. Finally we speculate on possibilities for full four-dimensional lattice studies of the same observable, perhaps by employing shifted boundary conditions in order to simulate ensembles boosted by an imaginary velocity.

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:

Laine, Mikko Sakari and Rothkopf, Alexander Karl

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

19 Jun 2014 08:34

Last Modified:

17 Sep 2015 11:18

Publisher DOI:

10.1007/JHEP07(2013)082

BORIS DOI:

10.7892/boris.43736

URI:

https://boris.unibe.ch/id/eprint/43736

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