New results for loop integrals: AMBRE, CSectors, hexagon
High Energy Physics - Phenomenology
2014-11-18 v1
Abstract
We report on the three Mathematica packages hexagon, CSectors, AMBRE. They are useful for the evaluation of one- and two-loop Feynman integrals with a dependence on several kinematical scales. These integrals are typically needed for LHC and ILC applications, but also for higher order corrections at meson factories. hexagon is a new package for the tensor reduction of one-loop 5-point and 6-point functions with rank R=3 and R=4, respectively; AMBRE is a tool for derivations of Mellin-Barnes representations; CSectors is an interface for the package sector_decomposition and allows a convenient, direct evaluation of tensor Feynman integrals.
Cite
@article{arxiv.0902.4830,
title = {New results for loop integrals: AMBRE, CSectors, hexagon},
author = {Janusz Gluza and Krzysztof Kajda and Tord Riemann and Valery Yundin},
journal= {arXiv preprint arXiv:0902.4830},
year = {2014}
}
Comments
9 pages, 1 figure, subm. to PoS(ACAT08)124