Hadronic $B$ decays and charm at Belle II

TL;DR

This paper reports measurements of hadronic B decays at Belle II, demonstrating consistency with previous results and introducing a new D meson flavor tagging algorithm to improve particle identification.

Contribution

The study provides new measurements of B decays and introduces a novel D meson flavor tagging algorithm at Belle II.

Findings

Results agree with previous measurements

Some results are competitive with world best

New D meson flavor tagging algorithm developed

Abstract

We report the measurements of various hadronic $B$ decays at the Belle II experiment using a $362 fb^{-1}$ sample of electron-positron collisions collected at the $\Upsilon(4S)$ resonance. All results agree with the previous determination, and some of them are already competitive with the world's best measurement. In addition, we present a newly developed algorithm for $D$ meson flavor tagging (discriminating between $D^{0}$ and $\bar{D^{0}}$) at Belle II.