Critical coupling for dynamical chiral-symmetry breaking with an infrared finite gluon propagator

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:18:11Z
dc.date.available2014-05-27T11:18:11Z
dc.date.created2014-05-27T11:18:11Z
dc.date.issued1997-01-30
dc.identifierPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 392, n. 3-4, p. 444-451, 1997.
dc.identifier0370-2693
dc.identifierhttp://hdl.handle.net/11449/65027
dc.identifier10.1016/S0370-2693(96)01573-0
dc.identifierWOS:A1997WE56700033
dc.identifier2-s2.0-0039385920
dc.description.abstractWe compute the critical coupling constant for the dynamical chiral-symmetry breaking in a model of quantum chromodynamics, solving numerically the quark self-energy using infrared finite gluon propagators found as solutions of the Schwinger-Dyson equation for the gluon, and one gluon propagator determined in numerical lattice simulations. The gluon mass scale screens the force responsible for the chiral breaking, and the transition occurs only for a larger critical coupling constant than the one obtained with the perturbative propagator. The critical coupling shows a great sensibility to the gluon mass scale variation, as well as to the functional form of the gluon propagator.
dc.languageeng
dc.relationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.relation4.254
dc.relation2,336
dc.rightsAcesso restrito
dc.sourceScopus
dc.titleCritical coupling for dynamical chiral-symmetry breaking with an infrared finite gluon propagator
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución