Abstract
The and processes are ideal platforms to search for higher states. Focusing on the observations of two enhancement structures around 2.2 GeV existing in and at BESIII, we analyze how the and states play the role in the and processes. The present study is supported by theoretical mesonic spectroscopy. For reproducing the data of the cross sections of and , the intermediate and should be introduced, which indicates that the enhancement structures around 2.2 GeV existing in and contain the and signals. Nonetheless, in the process , the plays a dominant role, while the and have similar sizable contributions in the process of , which leads to a difference in the line shape of enhancement structure in the cross sections under the interference effect. Thus, we find a solution to alleviate the puzzling difference of resonance parameter of two reported enhancement structures around 2.2 GeV existing in and at BESIII. The present study provides valuable information to construct meson family, which can be accessible at future experiment like BESIII.
2 More- Received 3 July 2022
- Accepted 2 August 2022
DOI:https://doi.org/10.1103/PhysRevD.106.034010
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society