Dyson-Schwinger equation constraints on the gluon propagator in BRST quantised QCD
Peter Lowdon
TL;DR
This paper investigates how Dyson-Schwinger equations impose analytic constraints on the gluon propagator in BRST quantised QCD, especially regarding the presence of massless components in its spectral density.
Contribution
It demonstrates that Dyson-Schwinger equations impose significant analytic constraints on the gluon propagator in BRST quantised QCD, affecting its spectral density structure.
Findings
Constraints control the appearance of massless components in the spectral density
Dyson-Schwinger equations impose analytic restrictions on the gluon propagator
Results enhance understanding of gluon dynamics in QCD
Abstract
The gluon propagator plays a central role in determining the dynamics of QCD. In this work we demonstrate for BRST quantised QCD that the Dyson-Schwinger equation imposes significant analytic constraints on the structure of this propagator. In particular, we find that these constraints control the appearance of massless components in the gluon spectral density.
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