Suzuki, A. T.Santos, E. S.Schmidt, AGM2014-05-202014-05-202002-11-01European Physical Journal C. New York: Springer-verlag, v. 26, n. 1, p. 125-137, 2002.1434-6044http://hdl.handle.net/11449/23247In this article we present the complete massless and massive one-loop triangle diagram results using the negative dimensional integration method (NDIM). We consider the following cases: massless internal fields; one massive, two massive with the same mass m and three equal masses for the virtual particles. Our results are given in terms of hypergeometric and hypergeometric-type functions of the external momenta (and masses for the massive cases) where the propagators in the Feynman integrals are raised to arbitrary exponents and the dimension of the space-time is D. Our approach reproduces the known results; it produces other solutions as yet unknown in the literature as well. These new solutions occur naturally in the context of NDIM revealing a promising technique to solve Feynman integrals in quantum field theories.125-137engArtigo10.1140/epjc/s2002-01035-0WOS:000179929000011Acesso restrito7511139477883318