24 citations · 67 across the 11 of their papers we have counts for
5 papers · 1 filter
Angular integrals with three denominators via IBP, mass reduction, dimensional shift, and differential equations
Juliane Haug, Fabian Wunder
Angular integrals arise in a wide range of perturbative quantum field theory calculations. In this work we investigate angular integrals with three denominators in $d=4-2\varepsilo…
Expansion by regions meets angular integrals
Vladimir A. Smirnov, Fabian Wunder
We study the small-mass asymptotic behavior of so-called angular integrals, appearing in phase-space calculations in perturbative quantum field theory. For this purpose we utilize…
A semi-analytical -space solution for parton evolution -- Application to non-singlet and singlet DGLAP equation
Juliane Haug, Oliver Schüle, Fabian Wunder
We present a novel semi-analytical method for parton evolution. It is based on constructing a family of analytic functions spanning -space which is closed under the considered e…
Asymptotic behavior of angular integrals in the massless limit
Fabian Wunder
We investigate the small-mass asymptotics of a class of massive dimensional angular integrals. These integrals arise in a wide range of perturbative quantum field theory calcul…
Perturbative -odd asymmetries in the Drell-Yan process revisited
Valery E. Lyubovitskij, Werner Vogelsang, Fabian Wunder +1
We calculate the perturbative -odd contributions to the lepton angular distribution in the Drell-Yan process. Using collinear factorization, we work at the first order in QCD pe…