The full four-loop cusp anomalous dimension in = 4 super Yang-Mills and QCD

JM Henn, GP Korchemsky, B Mistlberger - Journal of High Energy Physics, 2020 - Springer
A bstract We present the complete formula for the cusp anomalous dimension at four loops
in QCD and in maximally supersymmetric Yang-Mills. In the latter theory it is given …

The SAGEX review on scattering amplitudes Chapter 7: Positive geometry of scattering amplitudes

E Herrmann, J Trnka - Journal of Physics A: Mathematical and …, 2022 - iopscience.iop.org
Scattering amplitudes are both a wonderful playground to discover novel ideas in quantum
field theory and simultaneously of immense phenomenological importance to make …

Lectures on differential equations for Feynman integrals

JM Henn - Journal of Physics A: Mathematical and Theoretical, 2015 - iopscience.iop.org
Over the last year significant progress was made in the understanding of the computation of
Feynman integrals using differential equations (DE). These lectures give a review of these …

Constructing d-log integrands and computing master integrals for three-loop four-particle scattering

J Henn, B Mistlberger, VA Smirnov… - Journal of High Energy …, 2020 - Springer
A bstract We compute all master integrals for massless three-loop four-particle scattering
amplitudes required for processes like di-jet or di-photon production at the LHC. We present …

An algorithmic approach to finding canonical differential equations for elliptic Feynman integrals

C Dlapa, JM Henn, FJ Wagner - Journal of High Energy Physics, 2023 - Springer
A bstract In recent years, differential equations have become the method of choice to
compute multi-loop Feynman integrals. Whenever they can be cast into canonical form, their …

Baikov representations, intersection theory, and canonical Feynman integrals

J Chen, X Jiang, C Ma, X Xu, LL Yang - Journal of High Energy Physics, 2022 - Springer
A bstract The method of canonical differential equations is an important tool in the
calculation of Feynman integrals in quantum field theories. It has been realized that the …

Traintracks through Calabi-Yau manifolds: scattering amplitudes beyond elliptic polylogarithms

JL Bourjaily, YH He, AJ McLeod, M Von Hippel… - Physical review …, 2018 - APS
We describe a family of finite, four-dimensional, L-loop Feynman integrals that involve
weight-(L+ 1) hyperlogarithms integrated over (L-1)-dimensional elliptically fibered varieties …

Embedding Feynman integral (Calabi-Yau) geometries in weighted projective space

JL Bourjaily, AJ McLeod, C Vergu, M Volk… - Journal of High Energy …, 2020 - Springer
A bstract It has recently been demonstrated that Feynman integrals relevant to a wide range
of perturbative quantum field theories involve periods of Calabi-Yau manifolds of arbitrarily …

Standard model theory for the FCC-ee Tera-Z stage

A Blondel, J Gluza, S Jadach, P Janot… - arXiv preprint arXiv …, 2018 - arxiv.org
The future 100-km circular collider FCC at CERN is planned to operate in one of its modes
as an electron-positron FCC-ee machine. We give an overview comparing the theoretical …

Deriving canonical differential equations for Feynman integrals from a single uniform weight integral

C Dlapa, J Henn, K Yan - Journal of High Energy Physics, 2020 - Springer
A bstract Differential equations are a powerful tool for evaluating Feynman integrals. Their
solution is straightforward if a transformation to a canonical form is found. In this paper, we …