Recursive reduction of two-loop tensor integrals
Abstract
In order to meet the precision requirements for the LHC and future colliders, next-to-next-to-leading order corrections to a wide range of processes are essential, making general automated tools highly desirable. Extending the strategy of the widespread one-loop program OpenLoops to two loops, there are three major ingredients: process-dependent tensor coefficients, tensor integrals, and process-independent counterterms. In these proceedings, we focus on the second part and present a new recursive algorithm to reduce arbitrary two-loop tensor integrals to scalar integrals numerically.
Keywords
Cite
@article{arxiv.2603.06549,
title = {Recursive reduction of two-loop tensor integrals},
author = {Fabian Lange and Max F. Zoller},
journal= {arXiv preprint arXiv:2603.06549},
year = {2026}
}
Comments
13 pages, 4 figures, 1 table, contribution to the 17th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology (RADCOR2025), 5-10 October 2025, Puri, India