$N^* (1520)$ transition form factors from dispersion theory
High Energy Physics - Phenomenology
2023-09-29 v1
Abstract
The electromagnetic transition form factors (TFFs) of the nucleon provide important information on the internal structure of hadrons. A model-independent dispersive calculation of the electromagnetic TFFs at low energies is presented. Taking pion rescattering into consideration, we derived dispersive relations for the TFFs that relate space-like and time-like regions from the first principles. Based on the space-like data from JLab and hadronic data measured by HADES, we make predictions for TFFs in the time-like region. Our predictions can be tested in future experiments (e.g. HADES).
Cite
@article{arxiv.2309.15992,
title = {$N^* (1520)$ transition form factors from dispersion theory},
author = {Di An},
journal= {arXiv preprint arXiv:2309.15992},
year = {2023}
}
Comments
Conference Proceedings for meson 23. The conference proceedings will be published as a special issue of EPJ Web of Conferences