TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.7.018
TI  - Two-loop amplitude generation in OpenLoops
PY  - 2022/06/21
UR  - https://scipost.org/SciPostPhysProc.7.018
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 7
SP  - 018
A1  - Pozzorini, Stefano
AU  - Schär, Natalie
AU  - Zoller, Max
AB  - Numerical tools, such as OpenLoops, provide NLO scattering amplitudes for a very wide range of hard scattering amplitudes in a fully automated way. In order to match the numerical precision of current and future experiments, however, the higher precision of NNLO calculations is essential, and their automation in a similar tool highly desirable. In our approach, D-dimensional amplitudes are decomposed into loop-momentum tensor integrals with coefficients constructed in four dimensions and rational terms. We present a fully generic algorithm for the efficient numerical construction of the tensor coefficients, which constitutes an important building block for an automated NNLO tool.
ER  -

@Article{10.21468/SciPostPhysProc.7.018,
	title={{Two-loop amplitude generation in OpenLoops}},
	author={Stefano Pozzorini and Natalie Schär and Max F. Zoller},
	journal={SciPost Phys. Proc.},
	pages={018},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.7.018},
	url={https://scipost.org/10.21468/SciPostPhysProc.7.018},
}