299 citations · 1.3k across the 42 of their papers we have counts for
5 papers · 2 filters
A complete reduction of one-loop tensor 5- and 6-point integrals
Th. Diakonidis, J. Fleischer, J. Gluza +3
We perform a complete analytical reduction of general one-loop Feynman integrals with five and six external legs for tensors up to rank R=3 and 4, respectively. An elegant formalis…
Virtual Hadronic and Heavy-Fermion O(alpha^2) Corrections to Bhabha Scattering
Stefano Actis, Michal Czakon, Janusz Gluza +1
Effects of vacuum polarization by hadronic and heavy-fermion insertions were the last unknown two-loop QED corrections to high-energy Bhabha scattering and have been first announce…
On the tensor reduction of one-loop pentagons and hexagons
T. Diakonidis, J. Fleischer, J. Gluza +3
We perform analytical reductions of one-loop tensor integrals with 5 and 6 legs to scalar master integrals. They are based on the use of recurrence relations connecting integrals i…
Virtual Hadronic Corrections to Massive Bhabha Scattering
Stefano Actis, Janusz Gluza, Tord Riemann
Virtual hadronic contributions to the Bhabha process at the NNLO level are discussed. They are substantial for predictions with per mil accuracy. The studies of heavy fermion and h…
A new treatment of mixed virtual and real IR-singularities
Janusz Gluza, Tord Riemann
We discuss the determination of the infrared singularities of massive one-loop 5-point functions with Mellin-Barnes (MB) representations. Massless internal lines may lead to poles…