Two-loop corrections to $gg\to \gamma \gamma$

Abstract

An overview of the calculation of the two-loop helicity amplitudes for scattering of two gluons into two photons is presented. These matrix elements enter into the recent improved calculation of the QCD background to Higgs boson decay into a pair of photons, which is the preferred search mode at the LHC for the case of a light Higgs boson.

Presented at RADCOR 2002/Loops and Legs in Quantum Field Theory (September 2002, Kloster Banz, Germany)

References in corpus (13)

• Multi-Parton Amplitudes in Gauge Theories
• Supersymmetric Regularization, Two-Loop QCD Amplitudes and Coupling Shifts
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• Two-loop QCD corrections to gluon-gluon scattering
• Two-Loop QCD Helicity Amplitudes for $e^{+}{e}^{-}\to 3$~Jets
• The Two-Loop QCD Matrix Element for $e^{+}{e}^{-}\to 3$ Jets
• Two-Loop Amplitudes for Gluon Fusion into Two Photons
• QCD and QED Corrections to Light-by-Light Scattering
• Two-loop QCD corrections to massless quark-gluon scattering
• Isolating a light Higgs boson from the di-photon background at the LHC
• Two-loop corrections to Light-by-Light scattering in Supersymmetric QED
• Calculation of master integrals by difference equations
• Beyond leading order effects in photon pair production at the Tevatron