| Issue |
EPJ Web Conf.
Volume 202, 2019
9th International Workshop on Charm Physics (CHARM 2018)
|
|
|---|---|---|
| Article Number | 06011 | |
| Number of page(s) | 6 | |
| Section | Parallel Sessions | |
| DOI | https://doi.org/10.1051/epjconf/201920206011 | |
| Published online | 13 March 2019 | |
https://doi.org/10.1051/epjconf/201920206011
Exclusive open-charm near-threshold cross sections in a coupled-channel approach
P. N. Lebedev Physical Institute of the Russian Academy of Sciences
* e-mail: uglov.timofey@gmail.com
Published online: 13 March 2019
Data on 7 open-charm channels collected by the Belle Collaboration are analyzed simultaneously using a unitary approach based on a coupled channel model in a wide energy range 
= 3.7 − 4.7 GeV. The resulting fit provides a remarkably good overall description of the line shapes in all studied channels. Parameters of 5 vector charmonium resonances are extracted from the fit. It is demonstrated, that this approach could be used account for all exclusive channels and thus solve the long-term problem of the charmonium spectra near threshold.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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