TTP99-22 Automatic application of successive asymptotic expansions of Feynman diagrams
TTP99-22 Automatic application of successive asymptotic expansions of Feynman diagrams
TTP99-22 Automatic application of successive asymptotic expansions of Feynman diagrams
We discuss the program EXP used to automate the successive application
of asymptotic expansions to Feynman diagrams. We focus on the generation
of
the relevant subgraphs and the determination of the topologies for the
remaining integrals. Both tasks can be solved by using backtracking-type
recursive algorithms. In addition, an application of EXP is presented,
where the integrals were calculated using the FORM packages MINCER and
MATAD.
Th. Seidensticker
New computing techniques in physics research VI – Proceedings of the sixth international workshop on software engineering, artificial intelligence and expert systems, April 12 - 16, 1999, Heraklion, Crete