English

Pion transition form factor in the Domain model of QCD vacuum

High Energy Physics - Phenomenology 2017-04-26 v1

Abstract

Domain model of QCD allows for description of wide range of meson observables, dynamical chiral symmetry breaking, and resolution of UA(1)U_A(1) and strong CPCP 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 Q2FπγγQ^2F_{\pi\gamma^*\gamma} differs from the prediction of factorization theorems.

Keywords

Cite

@article{arxiv.1612.02687,
  title  = {Pion transition form factor in the Domain model of QCD vacuum},
  author = {Sergei Nedelko and Vladimir Voronin},
  journal= {arXiv preprint arXiv:1612.02687},
  year   = {2017}
}

Comments

Talk given at The XXIII International Baldin Seminar on High Energy Physics Problems "Relativistic Nuclear Physics and Quantum Chromodynamics", September 19 to 24, 2016, Dubna (Russia); 4 pages, 3 figures