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arXiv · 1612.02687

Pion transition form factor in the Domain model of QCD vacuum

Sergei Nedelko·Vladimir Voronin
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Abstract

Domain model of QCD allows for description of wide range of meson observables, dynamical chiral symmetry breaking, and resolution of $U_A(1)$ and strong $CP$ problems. The purpose of the present study is transition form-factor of neutral pseudoscalar mesons, and how they are influenced by the typical vacuum configurations of the model -- almost everywhere homogeneous Abelian (anti-)self-dual fields. Asymptotic behavior of the calculated pion form-factor supports Belle trend, but the asymptotic value of $Q^2F_{\pi\gamma^*\gamma}$ differs from the prediction of factorization theorems.

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Sergei Nedelko, Vladimir Voronin. 2016-12-08. Pion transition form factor in the Domain model of QCD vacuum. https://doi.org/10.1051/epjconf/201713802005

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