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Pré-Publication, Document De Travail Année : 2009

Reduction of one-massless-loop with scalar boxes in $n+2$ dimensions

Résumé

All one-massless-loop Feynman diagrams could be written like a linear combination of scalar boxes, triangles an bubbles in $n$ dimensions plus rational terms. However, the four-point scalar integrals in $n+2$ dimensions are free of infrared divergences. We are going to change the dimensions of the scalar boxes $n \to n+2$ and the using of this degree of freedom to simplify the computation of coefficients of the decomposition.

Dates et versions

hal-00374153 , version 1 (08-04-2009)

Identifiants

Citer

C Bernicot. Reduction of one-massless-loop with scalar boxes in $n+2$ dimensions. 2009. ⟨hal-00374153⟩
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