173 citations · 325 across the 9 of their papers we have counts for
13 papers · 1 filter
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…
Virtual Hadronic and Leptonic Contributions to Bhabha Scattering
Stefano Actis, Michal Czakon, Janusz Gluza +1
Using dispersion relations, we derive the complete virtual QED contributions to Bhabha scattering due to vacuum polarization effects in photon propagation. We apply our result to h…
Pentagon diagrams of Bhabha scattering
J. Fleischer, J. Gluza, K. Kajda +1
We report on tensor reduction of five point integrals needed for the evaluation of loop-by-loop corrections to Bhabha scattering. As an example we demonstrate the calculation of th…
Two-Loop Fermionic Corrections to Massive Bhabha Scattering
S. Actis, M. Czakon, J. Gluza +1
We evaluate the two-loop corrections to Bhabha scattering from fermion loops in the context of pure Quantum Electrodynamics. The differential cross section is expressed by a small…