Aguilar, A. C.Papavassiliou, J.2014-05-202014-05-202007-03-01European Physical Journal A. New York: Springer, v. 31, n. 4, p. 742-745, 2007.1434-6001http://hdl.handle.net/11449/23567The effective gluon propagator constructed with the pinch technique is governed by a Schwinger-Dyson equation with special structure and gauge properties, that can be deduced from the correspondence with the background field method. Most importantly the non-perturbative gluon self-energy is transverse order-by-order in the dressed loop expansion, and separately for gluonic and ghost contributions, a property which allows for a meanigfull truncation. A linearized version of the truncated Schwinger-Dyson equation is derived, using a vertex that satisfies the required Ward identity and contains massless poles. The resulting integral equation, subject to a properly regularized constraint, is solved numerically, and the main features of the solutions are briefly discussed.742-745engArtigo10.1140/epja/i2006-10281-7WOS:000245667300081Acesso restrito