Abstract
The branching fractions of the decays and are measured, where is either an electron or a muon, using a data sample of containing pairs collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider. To reduce the dependence of the result on the form factor model, the measurement is performed over the entire range. The resulting branching fractions are and .
- Received 28 April 2021
- Accepted 4 August 2022
DOI:https://doi.org/10.1103/PhysRevD.106.032013
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