出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We report on a new algorithm for the numeric evaluation of one-loop amplitudes. The method is based on the recursive concatenation of tree structures to build numerator functions as loopmomentum polynomials. Common structures between several Feynman diagrams are identified and reused. The numerator functions are combined with both, tensor integral and OPP reduction to obtain a fast and fully flexible one-loop generator.
