Abstract
With the new measurements of from LHCb Collaboration, in addition to the dominant contribution from the meson, we perform a theoretical study on the contribution of meson in the and processes. For the decay, in addition to the main contribution from meson, we consider also the coupling with meson decaying directly into . It is found that the recent experimental measurements on the invariant mass distributions can be well reproduced, and the ratio of the couplings between and is also evaluated. Within the parameters extracted from the invariant mass distributions of the process, the branching fractions of the channel relative to that of the channel and the invariant mass distributions of the decay are calculated, which gives a hint for the further high-statistic experiment.
- Received 4 July 2022
- Accepted 13 September 2022
DOI:https://doi.org/10.1103/PhysRevD.106.056022
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