Low-energy amplitudes in the non-local chiral quark model
Piotr Kotko
TL;DR
This paper uses a non-local chiral quark model with momentum-dependent quark mass to compute photon distribution amplitudes and pion-photon transition distribution amplitudes, comparing results with experimental data.
Contribution
It introduces a novel application of the non-local chiral quark model to calculate higher-twist distribution amplitudes and form factors, extending previous models.
Findings
Calculated photon distribution amplitudes up to twist-4
Derived pion-photon transition distribution amplitudes and form factors
Compared theoretical results with experimental data
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.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research