arXiv:0911.2138·v2·High Energy Physics — Phenomenology
Low-energy amplitudes in the non-local chiral quark model
Abstract
We apply chiral quark model with momentum dependent quark mass to two kinds of non-perturbative objects. These are: photon Distribution Amplitudes which we calculate up to twist-4 in tensor, vector and axial channels and pion-photon Transition Distribution Amplitudes together with related form factors. Where possible we compare our results with experimental data.
Comments: 15 pages, presented at the 49-th Cracow School of Theoretical Physics, May 31 -June 10, 2009, Zakopane, Poland. Some typos corrected