TL;DR
This paper presents the first measurements of key properties in charmless B meson decays at Belle II, demonstrating detector performance and consistency with known values using early data from 2019-2020.
Contribution
It provides initial measurements of branching fractions, CP asymmetries, and polarization in charmless B decays at Belle II, establishing a foundation for future studies.
Findings
Results are compatible with known values.
Detector performance is well-understood.
First measurements at Belle II for these decay modes.
Abstract
We report on the first measurements of branching fractions, CP-violating charge asymmetries, and longitudinal polarization fractions in charmless decays at the Belle II experiment. We use a sample of electron-positron collisions collected in 2019 and 2020 at the resonance that corresponds to 34.6 fb of integrated luminosity. The results are compatible with the known values, which indicates a good understanding of detector performance.
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