Issue |
EPJ Web Conf.
Volume 303, 2024
The 16th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2023)
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Article Number | 01024 | |
Number of page(s) | 7 | |
Section | Hadron Spectroscopy | |
DOI | https://doi.org/10.1051/epjconf/202430301024 | |
Published online | 25 September 2024 |
https://doi.org/10.1051/epjconf/202430301024
Charmonium-like States at BESIII
Institute for Nuclear Physics, University of Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany
* e-mail: f.weidner@uni-muenster.de
Published online: 25 September 2024
Using e+e− annihilation data taken by the BESIII detector, several searches for charmonium-like states were performed: In e+e−→Ds*+Ds*− using datasets with center-of-mass energies of 4:23 GeV to 4:95 GeV corresponding to a total integrated luminosity of 15:67 fb−1, three peaks around 4:19 GeV, 4:41 GeV and 4:79 GeV were observed. In e+e− → D*0D*−π+ at 4:19 GeV to 4:95 GeV corresponding to Lint = 17:9 fb−1, three peaks at 4:20 GeV, 4:47 GeV and 4:67 GeV were identified. And in ψ(3770) → γηη′, γπ+π− J/ψ with Lint = 2:93 fb−1 an upper limit on the production of a scalar partner of the χc1(3872) was determined.
© The Authors, published by EDP Sciences, 2024
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