English

Axial meson contribution to proton form factors

Nuclear Theory 2021-06-15 v1 High Energy Physics - Phenomenology

Abstract

The effect of axial meson exchange on extraction of proton electromagnetic form factors in epep scattering is calculated. Taking as an example f1(1285)f_1(1285) meson exchange, it is quantitatively shown how it affects Rosenbluth and polarization transfer methods. The contribution of an axial meson is negligible in comparison with the traditional box-type two photon exchange and could not be responsible for difference of form factors extracted by different techniques. However, results support the idea that meson exchange could explain deviation of individual polarizations.

Keywords

Cite

@article{arxiv.2106.06883,
  title  = {Axial meson contribution to proton form factors},
  author = {Nikolai Korchagin and Andrey Radzhabov},
  journal= {arXiv preprint arXiv:2106.06883},
  year   = {2021}
}

Comments

21 pages, 9 figures

R2 v1 2026-06-24T03:08:14.823Z