2 papers
hep-ph2024
Analytic and numerical approaches for depictive 3-loop integrals using sector decomposition
Elise de Doncker, Tadashi Ishikawa, Kiyoshi Kato +1
Four 3-loop two-point functions are studied analytically and numerically using a simplified sector decomposition method. The coefficients of the ultraviolet divergent part are dete…
hep-ph2024
3-loop Feynman Integral Extrapolations for the Baseball Diagram
E de Doncker, F Yuasa, T Ishikawa +1
We focus on numerical techniques for expanding 3-loop Feynman integrals with respect to the dimensional regularization parameter which is related to the space-time d…