EPJ Web Conf.
Volume 138, 2017XXIII International Baldin Seminar on High Energy Physics Problems Relativistic Nuclear Physics and Quantum Chromodynamics (Baldin ISHEPP XXIII)
|Number of page(s)||4|
|Section||Quantum chromodynamics at large distances|
|Published online||27 March 2017|
Pion transition form factor in the domain model of QCD vacuum
Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna, Russia
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Published online: 27 March 2017
Domain model of QCD allows for description of wide range of meson observables, dynamical chiral symmetry breaking, and resolution of UA(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 Q2Fπγ*γ differs from the prediction of factorization theorems.
© The Authors, published by EDP Sciences, 2017
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