Jul 26 – 30, 2021
US/Eastern timezone

Looking at the analytic structure of Landau gauge propagators

Jul 29, 2021, 5:15 AM
Oral presentation Vacuum Structure, Confinement, and Chiral Symmetry Vacuum Structure, Confinement, and Chiral Symmetry


Orlando Oliveira (University of Coimbra)


Lattice QCD is a first principle tool that allows to solve the theory in the non-perturbative regime. The Landau gauge quark, gluon and ghost propagator have been recently computed using both large physical volumes to access the IR region and large gauge ensembles that reduce the corresponding statistical uncertainties. However, lattice QCD only offers a table of numbers and further treatment is required to understand their meaning. We report a study of the fundamental QCD propagators based on Padé approximants to access their analytical structure. In particular, we try to identify the poles and branch cuts for each of the propagators.

Primary authors

Mr Alexandre Falcão (University of Coimbra, Portugal) Orlando Oliveira (University of Coimbra) Dr Paulo J Silva (University of Coimbra, Portugal)

Presentation materials