000004414 001__ 4414
000004414 005__ 20240705191203.0
000004414 037__ $$aBELLE2-TALK-CONF-2024-086
000004414 041__ $$aeng
000004414 088__ $$aBELLE2-TALK-DRAFT-2024-084
000004414 100__ $$aPaul Gebeline
000004414 245__ $$aCharm results at Belle and Belle II
000004414 260__ $$aBEACH 2024$$c2024-06-03
000004414 300__ $$amult. p
000004414 520__ $$aThe Belle and Belle II experiments have collected a 1.4 ab−1 sample of e +e − collision data at centreof-mass energies near the Υ(nS) resonances. These samples contain a large number of e +e − → cc¯ events that produce charmed mesons. Direct CP violation is searched for in D0 → K0 SK0 S decays and D-meson decays to a four-body final state. For the four-body decays, asymmetries in the distributions of triple and quadruple moments probe for CP violation. We present searches for rare flavour-changing neutral current c → uℓ+ℓ − processes in several decay modes. Further, we study several decays of the Λc and Ξc to determine branching fractions, as well as CP asymmetries in singly Cabibbo-suppressed decays.
000004414 8560_ $$fdjaffe@bnl.gov
000004414 8564_ $$uhttps://docs.belle2.org/record/4414/files/BELLE2-TALK-CONF-2024-086.pdf