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Double Virtual Contributions for Massless 2 -> 3 Scattering in NNLO QCD

by Sotnikov, V

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Submission summary

Authors (as registered SciPost users): Vasily Sotnikov
Submission information
Preprint Link: scipost_202202_00038v1  (pdf)
Date accepted: 2022-03-08
Date submitted: 2022-02-22 04:11
Submitted by: Sotnikov, Vasily
Submitted to: SciPost Physics Proceedings
Proceedings issue: 15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology (RADCOR2021)
Ontological classification
Academic field: Physics
Specialties:
  • High-Energy Physics - Phenomenology
Approaches: Theoretical, Computational

Abstract

We review the recent advances in the calculation of two-loop QCD corrections for massless five-point scattering that paved the way for their broad phenomenological applications in calculation of NNLO QCD predictions. We first discuss the construction of a transcendental function basis which facilitates derivation of compact analytic representations for two-loop amplitudes and enables their fast and stable numerical evaluation over physical phase space. We then present the recent calculations of the leading-color two-loop corrections for hadroproduction of three photons and three jets.

Published as SciPost Phys. Proc. 7, 002 (2022)


Reports on this Submission

Anonymous Report 1 on 2022-2-28 (Invited Report)

Strengths

1.- Discussion of pioneering work on the characterization, representation and implementation of functional spaces for the calculation of massless five-point Feynman integrals
2.- This work opened up the field for many applications in related massless five-particle scattering amplitudes at two loops
3.- The calculation of the leading-color two-loop 5-parton scattering amplitudes is presented, with a systematic study of the corresponding implementation's efficiency and numerical stability

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.

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