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One-loop integrals with XLOOPS-GiNaC

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arxiv hep-ph/0102231 v2 pith:O36JN7BN submitted 2001-02-19 hep-ph

One-loop integrals with XLOOPS-GiNaC

classification hep-ph
keywords integralsone-loopalgorithmfeynmantensorxloopsarbitraryaspects
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present a new algorithm for the reduction of one-loop tensor Feynman integrals within the framework of the XLOOPS project, covering both mathematical and programming aspects. The new algorithm supplies a clean way to reduce the one-loop one-, two- and three-point Feynman integrals with arbitrary tensor rank and powers of the propagators to a basis of simple integrals. We also present a new method of coding XLOOPS in C++ using the GiNaC library.

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