Photon interactions and chiral dynamics

Details Photon interactions and chiral dynamics Photon interactions and chiral dynamics

2009-07-20

arxiv.org/abs/0907.3374v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 4 figures, contribution to the proceedings of PHOTON 09

Scientific paper

Twist-2 components of the real and virtual photon distribution amplitudes are evaluated in several chiral quark models. The results, obtained at the quark model scale, are then evolved to higher scales, probed in experiments or in lattice QCD. We also analyze the related form factors and coupling constants. Our results are a genuine dynamical prediction, following from the chiral dynamics.

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