Landau gauge gluon vertices from Lattice QCD
Anthony G. Duarte, Orlando Oliveira, Paulo J. Silva
TL;DR
This paper revisits the calculation of the three-gluon 1PI Green's function in lattice QCD, addressing computational challenges related to higher-order moments and finite size effects to improve the accuracy of gluon vertex functions.
Contribution
It introduces improved methods for calculating the three-gluon 1PI Green's function, overcoming previous limitations in lattice QCD computations.
Findings
Enhanced accuracy in three-gluon Green's function calculations
Reduced finite size effects in lattice QCD simulations
Improved estimation of higher-order moments
Abstract
In lattice QCD the computation of one-particle irreducible (1PI) Green's functions with a large number (> 2) of legs is a challenging task. Besides tuning the lattice spacing and volume to reduce finite size effects, the problems associated with the estimation of higher order moments via Monte Carlo methods and the extraction of 1PI from complete Green's functions are limitations of the method. Herein, we address these problems revisiting the calculation of the three gluon 1PI Green's function.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research