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Two-loop amplitude generation in OpenLoops
by Stefano Pozzorini, Natalie Sch\"ar, Max F. Zoller
This Submission thread is now published as
Submission summary
| Authors (as registered SciPost users): | Max Zoller |
| Submission information | |
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| Preprint Link: | scipost_202110_00049v1 (pdf) |
| Date accepted: | 2022-05-06 |
| Date submitted: | 2021-10-30 16:31 |
| Submitted by: | Zoller, Max |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology (RADCOR2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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Abstract
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.
Published as SciPost Phys. Proc. 7, 018 (2022)
Reports on this Submission
Strengths
The article reports on the work presented at RADCOR/LoopFest 2021. It fulfills all the requirements for publication in SciPost Proceedings.
Weaknesses
None.
Report
The article reports on the work presented at RADCOR/LoopFest 2021. It fulfills all the requirements for publication in SciPost Proceedings and therefore we recommend its publication.
Requested changes
None.