Non-planar double-box, massive and massless pentabox Feynman integrals in negative dimensional approach

Details Non-planar double-box, massive and massless pentabox Feynman integrals in negative dimensional approach Non-planar double-box, massive and massless pentabox Feynman integrals in negative dimensional approach

2001-10-04

arxiv.org/abs/hep-th/0110047v1

J.Phys.A35:151-164,2002

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 12 pages, 2 figures, uses axodraw (included)

Scientific paper

10.1088/0305-4470/35/1/312

Negative dimensional integration method (NDIM) 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 where all of them are massless. Our results are given in terms hypergeometric functions of Mandelstam variables and for arbitrary exponents of propagators and dimension $D$ as well.

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