Schwinger-dyson equations and dynamical gluon mass generation
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We discuss the solutions obtained for the gluon propagador in Landau gauge within two distinct approximations for the Schwinger-Dyson equations (SDE). The first, named Mandelstam's approximation, consist in neglecting all contributions that come from fermions and ghosts fields while in the second, the ghosts fields are taken into account leading to a coupled system of integral equations. In both cases we show that a dynamical mass for the gluon propagator can arise as a solution. © 2005 American Institute of Physics.
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Gluon Schwinger-Dyson Equation, Infrared Gluon Propagator, Nonperwrbative QCD
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Inglês
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AIP Conference Proceedings, v. 756, p. 327-329.
