| Issue |
EPJ Web Conf.
Volume 291, 2024
MESON 2023 – 17th International Workshop on Meson Physics
|
|
|---|---|---|
| Article Number | 02006 | |
| Number of page(s) | 4 | |
| Section | Light Mesons and Baryons | |
| DOI | https://doi.org/10.1051/epjconf/202429102006 | |
| Published online | 16 February 2024 | |
https://doi.org/10.1051/epjconf/202429102006
N*(1520) transition form factors from dispersion theory
Institutionen för fysik och astronomi, Uppsala universitet, Box 516, S-75120 Uppsala, Sweden
* e-mail: di.an@physics.uu.se
Published online: 16 February 2024
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 electro magnetic TFFs N*(1520) → N at low energies is presented. Taking pion rescattering into consideration, we derived dispersive relations for the N*(1520) → N 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 experi ments (e.g. HADES).
© The Authors, published by EDP Sciences, 2024
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