CSectors - numerical calculation of multiloop
tensor integrals
in Euclidean region by sector decomposition
arXiv:
arXiv:1006.4728 [hep-ph]
(basic description)
arXiv:
arXiv:1010.1667 [hep-ph]
(the main paper)
J. Gluza, K. Kajda (Silesia U.) , T. Riemann, V. Yundin (DESY, Zeuthen)
See
here
(Mellin-Barnes) for an alternative way of numerical calculation of Feynman Integrals
in Euclidean region.
To download 'right click' and 'save target as'.
- The package CSectors.m, version 1.0
The package compute numerically the Laurent expansion of (divergent) multi-loop tensor
Feynman integrals.
It generates appropriate files in an automatic way and links them with
the basic sector decomposition program by Bogner and Weinzierl
webpage.
See there for description and download of the package altogether with Ginac.
Detailed description how to define integrals for numerical calculations
can be found in
the following Mathematica notebook examples:
Tarball with another sample examples given below
ex.tgz.
Some of examples below correspond to the examples calculated by Mellin-Barnes
on the webpage here .
