2 papers
hep-ph2004
Two-loop helicity amplitudes for fermion-fermion scattering
A. De Freitas, Z. Bern
We discuss the calculation of two-loop helicity amplitudes for quark-quark scattering in QCD and four-gluino scattering in N=1 supersymmetric Yang-Mills theory. We study the depend…
hep-ph2003
Di-photon production at the LHC
Zvi Bern, Lance Dixon, Carl Schmidt
The standard model production of two photons is one of the most important backgrounds to light Higgs boson production at the LHC. In this talk we discuss the di-photon background,…