kira is hosted by Hepforge, IPPP Durham

Kira

Feynman integral reduction program

About Kira is a Feynman integral reduction program written in C++. The reduction is performed with the help of the computer algebra system Fermat. Since version 2.0, it offers a second strategy based on finite field interpolation and reconstruction techniques with the help of the C++ library FireFly.

On this website you find precompiled and statically linked executables of the latest version of Kira, both compiled with and without jemalloc. A tarball of the source code is available as kira-2.0.tar.gz. The installation instructions can be found here or in README.rst in the tarball. Moreover, tarballs of previous versions can be found here.

The source code is also available from a git repository at GitLab. The repository receives more frequent updates.

This webpage is still under construction.

Cite When Kira is used for a publication please cite

J. Klappert, F. Lange, P. Maierhöfer, J. Usovitsch,
arXiv:2008.06494

P. Maierhöfer, J. Usovitsch, P. Uwer,
Comput. Phys. Commun. 230 (2018) 99,
arXiv:1705.05610

as well as

R. H. Lewis,
Computer Algebra System Fermat,
https://home.bway.net/lewis



If FireFly is used, please also cite

J. Klappert, S. Y. Klein, F. Lange,
arXiv:2004.01463

J. Klappert, F. Lange,
Comput. Phys. Commun. 247 (2020) 106951,
arXiv:1904.00009

Authors