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arXiv · hep-ph/0305132

One-Loop Helicity Amplitudes for Parton Level Virtual Compton Scattering

H. W. Huang·T. Morii
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Abstract

We calculate the one-loop QCD virtual corrections to all helicity amplitudes for parton level virtual Compton scattering processes. We include the amplitudes both on quark target process $γ^* q\toγq$ and on gluon target process $γ^*g\toγg$. The infrared pole structure of the amplitudes is in agreement with the prediction of Catani's general formalism for the singularities of one-loop amplitudes, while expressions for the finite remainder are given in terms of logarithms and dilogarithms that are real in the physical region.

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H. W. Huang, T. Morii. 2003-05-29. One-Loop Helicity Amplitudes for Parton Level Virtual Compton Scattering. https://doi.org/10.1103/physrevd.68.014016

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