Abstract
The , , and observed by the LHCb collaboration are very likely to be -wave molecular candidates due to their near threshold character. In this work, we study the hidden-charm decay modes of these states, , using a quark interchange model. The decay mechanism for the processes arises from the quark-quark interactions, where all parameters are determined by the mass spectra of mesons. We present our results in two scenarios. In scenario I, we perform the dynamical calculations and treat the states as pure molecules. In scenario II, after considering the coupled channel effect between different flavor configurations , we calculate these partial decay widths again. The decay patterns in these two scenarios can help us to explore the molecular assignment and the inner flavor configurations for the states. In particular, the decay widths of are comparable to the decay widths in both of these two scenarios. Future experiments like LHCb may confirm the existence of the in the channel.
- Received 22 November 2019
- Accepted 24 July 2020
DOI:https://doi.org/10.1103/PhysRevD.102.036012
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