Studies of hadron spectroscopy at Belle and Belle II

Sumitted to PubDB: 2024-07-05

Category: Talk, Visibility: Public

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Authors Weimin Song
Date July 2, 2024
Belle II Number BELLE2-TALK-CONF-2024-080
Abstract The Belle and Belle~II experiments have collected a 1.4 ab1 sample of e+e collision data at centre-of-mass energies near the Υ(nS) resonances. These data include a 19.2~fb1 sample collected near the Υ(10753) resonance to probe its potentially exotic nature. We present several results related to the following processes: e+eΥ(nS)η, e+eγXb(χbJπ+π), e+ehb(1P)η and e+eχbJ(1P)ω. The last analysis also includes data samples collected by Belle at similar centre-of-mass energies. In addition, we present Belle measurements of the B0 and B+ meson mass difference, a pentaquark search in Υ(1S) and Υ(2S) decays, as well as studies of hb(2P) decays to the ηΥ(1S) and χbJγ final states.
Conference Exotic Hadron Spectroscopy 2024

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