000002317 001__ 2317
000002317 005__ 20210324170406.0
000002317 037__ $$aBELLE2-TALK-CONF-2021-013
000002317 041__ $$aeng
000002317 088__ $$aBELLE2-TALK-DRAFT-2021-007
000002317 100__ $$aRiccardo Manfredi
000002317 245__ $$aMeasurement of charmless B decays at Belle II
000002317 260__ $$aLa Thuile 2021 - Les Rencontres des Physiques de la Vallee dAoste $$c2021-03-09
000002317 300__ $$amult. p
000002317 520__ $$aThe physics of charmless $B$ decays is an unique portion of the Belle II program. Expected large signals over moderate backgrounds, associated with efficient reconstruction of neutral particles, will enable world-leading determination of the CKM phase $\alpha/\phi_2$, a conclusive understanding of the so-called K-$\pi$ CP puzzle, and further insight into the nature of localized CP violation in three-body decays. We report preliminary measurements based on the sample collected during 2019-2020 operations and corresponding to 63 fb$^{-1}$ of integrated luminosity. Results include a test of the $K\pi$ isospin sum-rule, and an angular analysis of $B \to \rho^+ \rho^0$ decays.
000002317 8560_ $$fdjaffe@bnl.gov
000002317 8564_ $$uhttps://docs.belle2.org/record/2317/files/BELLE2-TALK-CONF-2021-013.pdf