Recent B Physics results from Belle and Belle II

Sumitted to PubDB: 2024-07-05

Category: Talk, Visibility: Public

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Authors	Seema Choudhury
Date	June 3, 2024
Belle II Number	BELLE2-TALK-CONF-2024-087
Abstract	The Belle II experiment has collected a 424 fb−1 sample of 𝑒+𝑒− collisions produced by the asymmetric SuperKEKB collider. Ninety percent of the sample is at the Υ(4𝑆) resonance, which decays to 𝐵-meson pairs. The predecessor experiment, Belle, collected nearly 1 ab−1 of data from 1999-2010, three-quarters of which was at the Υ(4𝑆). From these Υ(4𝑆) data, we have made measurements of rare 𝐵 decays and 𝐶𝑃 violation, as well as searched for lepton-universality violation. Highlights include the first observation of 𝐵→𝐾𝜈𝜈¯ and measurements of lepton-universality in semitauonic 𝐵 decays.
Conference	BEACH 2024