Reconstructing the gluon

We reconstruct the gluon spectral function in Landau gauge QCD from numerical data for the gluon propagator. The reconstruction relies on two novel ingredients: Firstly we derive analytically the low frequency asymptotics of the spectral function. Secondly we construct a functional basis from a c...

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Bibliographic Details
Main Author: Anton K. Cyrol, Jan M. Pawlowski, Alexander Rothkopf, Nicolas Wink
Format: Article
Language:English
Published: SciPost 2018-12-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.5.6.065