Multiloop corrections for collider processes using auxiliary mass flow

2021/07/31 by Xiao Liu, Yan-Qing Ma
Computer Science · Physics and Astronomy · #Collider #Computer science #Distributed and Parallel Computing Systems #Flow (mathematics) #Mechanics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #hep-ph

paper · pdf · doi:10.1103/physrevd.105.l051503

published as Phys.Rev.D 105 (2022) 5, L051503 · 7 pages, 4 figures, published version

openalex publication_date 2022/03/14 · arxiv created 2022/03/15 · arxiv updated 2022/03/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

With a key improvement, the auxiliary mass flow method is now able to compute Feynman integrals encountered in cutting-edge collider processes. We have successfully applied it to compute some integrals involved in two-loop electroweak corrections to e⁺e^-→ HZ, two-loop QCD corrections to 3j, W/Z/H+2j, ttH and 4j production at hadron colliders, and three-loop QCD corrections to tt production at hadron colliders, all of which are crucial for precision frontier in collider physics in the following decade. Our results are important building blocks and benchmarks for future studies of these processes.

Citations

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