Pion-photon transition form factor with analytic coupling

I. A. Zemlyakov; I. L. Chuev; A. V. Kotikov

Pion-photon transition form factor with analytic coupling

High Energy Physics - Phenomenology 2026-08-01 v1

Authors: I. A. Zemlyakov , I. L. Chuev , A. V. Kotikov

Abstract

We investigate the pion-photon transition form factor within the framework of analytic QCD. A comparison is performed between experimental data and perturbative QCD based on conventional and analytic versions of perturbation theory with the ``massive'' form of the twist-four contribution. We show that conventional perturbation theory fails to reproduce the data, while the analytic version demonstrates good agreement with experiment.

Cite

@article{arxiv.2608.00564,
  title  = {Pion-photon transition form factor with analytic coupling},
  author = {I. A. Zemlyakov and I. L. Chuev and A. V. Kotikov},
  journal= {arXiv preprint arXiv:2608.00564},
  year   = {2026}
}

Comments

6 pages, 2 figures