Issue |
EPJ Web Conf.
Volume 274, 2022
XVth Quark Confinement and the Hadron Spectrum Conference (ConfXV)
|
|
---|---|---|
Article Number | 01001 | |
Number of page(s) | 12 | |
Section | 1 - Plenary Presentations | |
DOI | https://doi.org/10.1051/epjconf/202227401001 | |
Published online | 22 December 2022 |
https://doi.org/10.1051/epjconf/202227401001
Exotic states in the quarkonium sector — status and perspectives
1 Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing, China
2 University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, China
* e-mail: yuancz@ihep.ac.cn
Published online: 22 December 2022
The discovery of hadronic states beyond the conventional two-quark meson and three-quark baryon picture in the last two decades is one of the most amazing accomplishments in fundamental physics research. Many experiments contributed to this field despite of the original goals of the design. We review the experimental progress on the study of the quarkoniumlike states — states with at least one heavy quark-antiquark pair and possible light quarks, also known as XYZ states. We give a general review and then focus on the new experimental results on the X(3872) and its bottom-quark partner Xb, the X(3960), the Y(4260), Y(4500), Y(4660), and Y(10750), and the charged charmoniumlike Zc and Zcs states. The observations suggest that we did observe hadronic molecules and we also observed hadronic states with some other quark configurations. Possible further studies at the existing and future facilities are briefly discussed.
© The Authors, published by EDP Sciences, 2022
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.