One Loop Chiral Corrections to Hard Exclusive Processes:I. Pion Case
N. Kivel, M. V. Polyakov
Abstract
We computed the leading non-analytic chiral corrections to the generalized parton distributions (GPDs) of the pion and to the two-pion distribution amplitudes. This allows us to obtain the corresponding corrections for the hard exclusive processes, such as gamma* gamma -> pi pi, gamma* N -> 2pi N' and deeply virtual Compton scattering on the pion target.
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