Artículos de revistas
Non-planar double-box, massive and massless pentabox Feynman integrals in the negative-dimensional approach
Fecha
2002-01-11Registro en:
Journal of Physics A-mathematical and General. Bristol: Iop Publishing Ltd, v. 35, n. 1, p. 151-163, 2002.
0305-4470
10.1088/0305-4470/35/1/312
WOS:000173665900014
7511139477883318
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
The negative-dimensional integration method is a technique which can be applied, with success, in usual covariant gauge calculations. We consider three two-loop diagrams: the scalar massless non-planar double-box with six propagators and the scalar pentabox in two cases, where six virtual particles have the same mass, and in the case all of them are massless. Our results are given in terms of hypergeometric functions of Mandelstam variables and also for arbitrary exponents of propagators and dimension D.