OpenLoops is hosted by Hepforge, IPPP Durham

Third party Tools

OpenLoops makes use of the following third-party tools which are shipped and compiled together with OpenLoops.

CutTools

By default OpenLoops uses OPP reduction methods implemented in CutTools by G. Ossola, C. G. Papadopoulos and R. Pittau. If used please cite

G. Ossola, C. Papadopoulos, R. Pittau
JHEP 0803 (2008) 042
arXiv:0711.3596

OneLOop

By default OpenLoops uses OneLOop by A. van Hameren for the evaluation of one-loop scalar integrals. If used please cite

A. van Hameren
Comput. Phys. Commun. 182 (2011) 2427-2438
arXiv:1007.4716

COLLIER

The COLLIER library by A. Denner, S. Dittmaier and L. Hofer is linked for the fast and numerically stable evaluation of one-loop tensor and scalar integrals. If used please cite

A. Denner, S. Dittmaier
Nucl. Phys. B 658 (2003) 175
arXiv:hep-ph/0212259

A. Denner, S. Dittmaier
Nucl. Phys. B 734 (2006) 62
arXiv:hep-ph/0509141

A. Denner, S. Dittmaier
Nucl. Phys. B 844 (2011) 199
arXiv:1005.2076

A. Denner, S. Dittmaier, L. Hofer
arXiv:1604.06792
arXiv:1604.06792

Alternative Tools

Additonally the following tools can be installed independently and interfaced with OpenLoops:

Samurai

The Samurai library by P. Mastrolia, G. Ossola, T. Reiter and F. Tramontano can be linked for numerical evaluation based on the d-dimensional integrand reduction method. If used, please cite

P. Mastrolia, G. Ossola, T. Reiter, F. Tramontano
JHEP 1008 (2010) 080
arXiv:1006.0710