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19992026
most citedSupersymmetric Regularization, Two-Loop QCD Amplitudes and Coupling Shifts

204 citations · 1.4k across the 24 of their papers we have counts for

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Showing 2001Show all

2 papers · 1 filter

hep-ph2001★ 145 cited

QCD and QED Corrections to Light-by-Light Scattering

Z. Bern, A. De Freitas, L. Dixon +2

We present the QCD and QED corrections to the fermion-loop contributions to light-by-light scattering, gamma gamma to gamma gamma, in the ultrarelativistic limit where the kinemati…

hep-ph2001★ 173 cited

Two-Loop Amplitudes for Gluon Fusion into Two Photons

Z. Bern, A. De Freitas, L. Dixon

We present the two-loop matrix elements for the scattering of two gluons into two photons in QCD. These matrix elements will enter into improved estimates of the QCD background to…