Pion-photon Transition Form Factor with Analytic Coupling
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.
Authors
- I. A. Zemlyakov (ORCID: https://orcid.org/0000-0003-3887-5518)
- Anatoly Vassilievich Kotikov (ORCID: https://orcid.org/0000-0002-1408-2735)
- I. L. Chuev
Publication Details
- Journal
- Journal of Experimental and Theoretical Physics Letters
- Published
- 2026-09-28
- DOI
- https://doi.org/10.1134/s0021364026608080
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 0.00