| Issue |
EPJ Web Conf.
Volume 291, 2024
MESON 2023 – 17th International Workshop on Meson Physics
|
|
|---|---|---|
| Article Number | 03008 | |
| Number of page(s) | 4 | |
| Section | Heavy Flavours | |
| DOI | https://doi.org/10.1051/epjconf/202429103008 | |
| Published online | 16 February 2024 | |
https://doi.org/10.1051/epjconf/202429103008
Light front approach to axial meson photon transition form factors: Probing the structure of χc1 (3872)
1
Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, PL-31-342 Kraków, Poland
2
University of Rzeszów, ul. Pigonia 1, PL-35-959 Rzeszów, Poland
* e-mail: wolfgang.schafer@ifj.edu.pl
** e-mail: izabela.babiarz@ifj.edu.pl
*** e-mail: antoni.szczurek@ifj.edu.pl
Published online: 16 February 2024
Abstract. We propose to study the structure of the enigmatic χc1(3872) axial vector meson through its γL*γ → χc1 (3872) transition form factor. We use our recently derived light-front wave function representation of the form factor for the lowest cc¯ Fock-state. We found that the reduced width of the state is well within the current experimental bound recently published by the Belle collaboration. This strongly suggests a crucial role of the cc¯ Fock-state in the photon-induced production. Our predictions for the Q2 dependence can be tested by future single tagged e+e− experiments, giving further insights into the short-distance structure of this meson.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.