Infrared Gluon and Ghost Propagators from Lattice QCD. Results from large asymmetric lattices

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dc.creatorOliveira, O.
dc.creatorSilva, P. J.
dc.date2006-09-18
dc.date2006-11-15
dc.date.accessioned2026-07-07T10:24:47Z
dc.date.available2026-07-07T10:24:47Z
dc.descriptionWe report on the infrared limit of the quenched lattice Landau gauge gluon and ghost propagators as well as the strong coupling constant computed from large asymmetric lattices. The infrared lattice propagators are compared with the pure power law solutions from Dyson-Schwinger equations (DSE). For the gluon propagator, the lattice data is compatible with the DSE solution. The preferred measured gluon exponent being $\sim 0.52$, favouring a null zero momentum propagator. The lattice ghost propagator shows finite volume effects and, for the volumes considered, the propagator does not follow a pure power law. Furthermore, the strong coupling constant is computed and its infrared behaviour investigated.
dc.descriptionTalk given at QNP06; final version with improved english, accepted for publication at EPJA
dc.identifierhttps://arxiv.org/abs/hep-lat/0609027
dc.identifierhttp://arxiv.org/abs/hep-lat/0609027
dc.identifierEur.Phys.J.A31:790-792,2007
dc.identifierdoi:10.1140/epja/i2006-10210-x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176311
dc.subjectHigh Energy Physics - Lattice
dc.titleInfrared Gluon and Ghost Propagators from Lattice QCD. Results from large asymmetric lattices
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