Measurement of decays at Belle II
Collaboration
e-Print:
- 2411.10127 [hep-ex]
Report number:
- Belle II Preprint 2024-029,
- KEK Preprint 2024-31
Experiments:
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Citations per year
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Abstract: (arXiv)
We present measurements of decays using of data collected from 2019 to 2022 by the Belle~II experiment at the SuperKEKB asymmetric-energy collider. The data sample contains events. We measure branching fractions () and asymmetries () for both and decays. The difference in asymmetries () and the isospin asymmetry () between these neutral and charged channels are also measured. We obtain the following branching fractions and asymmetries: , , , and . The measured difference in asymmetries is , and the measured isospin asymmetry is . The first uncertainties listed are statistical and the second are systematic. These results are consistent with world-average values and theory predictions.References(45)
Figures(14)
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