Abstract
We present the first measurements of absolute branching fractions of decays into , , and final states. The measurements are made using a dataset comprising pairs collected at the resonance with the Belle detector at the KEKB collider. We first measure the absolute branching fraction for using a missing-mass technique; the result is . We subsequently measure the product branching fractions , , and with improved precision. Dividing these product branching fractions by the result for yields the following branching fractions: , , and . For the above branching fractions, the first uncertainties are statistical and the second are systematic. Our result for can be combined with branching fractions measured relative to to yield other absolute branching fractions.
- Received 24 November 2018
- Revised 27 January 2019
DOI:https://doi.org/10.1103/PhysRevLett.122.082001
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