H. Moutarde, B. Pire, F. Sabatié, L. Szymanowski, J. Wagner
We emphasize how large O(\alpha_s) corrections to timelike and spacelike virtual Compton scattering amplitudes are in the generalized Bjorken scaling regime, and in particular the gluonic contributions, even in the medium energy range which will be studied intensely at JLab12 and in the COMPASS-II experiment at CERN. We stress that the timelike and spacelike cases are complementary and that their difference deserves much special attention.
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http://arxiv.org/abs/1307.2936
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