Abstract
Partial wave analysis is performed, with effective potentials as dynamical inputs, to scrutinize the recent LHCb data on the di- invariant mass spectrum. Coupled-channel effects are incorporated in the production amplitude via final state interactions. The LHCb data can be well described. A dynamically generated pole structure, which can be identified as the state, is found. Our analysis also provides hints for the existence of three other possible states: a bound state , a broad resonant state and a narrow resonant state . The quantum numbers of the and states should be , while the and states prefer . To determine the above states more precisely, more experimental data for the channels, such as , , di-, are required.
- Received 21 April 2021
- Accepted 4 August 2021
DOI:https://doi.org/10.1103/PhysRevD.104.034034
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