Sumitted to PubDB: 2023-10-14

Category: Talk, Visibility: Public

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Authors	Seongbae Yang
Date	2023-10-10
Belle II Number	BELLE2-TALK-CONF-2023-154
Abstract	Belle II, which commenced data acquisition in 2019, has already yielded research results in hadron spectroscopy. The $e^{+}{e}^{-}$ collision data, taken at or near the $\mathrm{{\rm Y}}(4S)$ resonance, are well-suited for studying hadrons with a high-performance detector system. In this presentation, we will show the latest research outcomes in hadron spectroscopy, including searches for the hidden bottom transitions between $\mathrm{{\rm Y}}(10753)$ and bottomonia, measurements of the energy dependence of the $e^{+}{e}^{-}\to B^{(\ast )}{\overline{B}}^{(\ast )}$ cross-section, and lifetime measurements of charmed hadrons. The talk also covers recent results from the Belle experiment, which ended operation in 2010. Notably, we will reveal a threshold cusp observed at the $\mathrm{\Lambda }\eta$ threshold in the $p{K}^{-}$ system and new $\mathrm{\Lambda }\pi$ signals observed near the $\overline{K}N$ mass threshold in the ${\mathrm{\Lambda }}_c^{+}$ decays.
Conference	MENU2023

• BELLE2-TALK-CONF-2023-154_revised.pdf (versions: 1)
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• BELLE2-TALK-CONF-2023-154.pdf (versions: 1)
  latest upload: 2024-12-02