Charmed baryon decays at Belle and Belle II
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arXiv
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866918403377201152 |
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| author | Kim, Jaeyoung |
| author_facet | Kim, Jaeyoung |
| contents | Belle and Belle II experiments have collected $e^+e^-$ collision data with center-of-mass energies at or near the $Υ(4S)$ resonance. Using total $1.4\,\mathrm{ab}^{-1}$ combined dataset, we present new measurements of branching fractions for $Ξ_c^{0/+}$ and $Λ_c^+$ baryons, including several first observations. Additionally, we report the initial search for $CP$ violation in singly Cabibbo-suppressed three-body decays of charmed baryons, providing a test of $U$-spin symmetry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_21722 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Charmed baryon decays at Belle and Belle II Kim, Jaeyoung High Energy Physics - Experiment High Energy Physics - Phenomenology High Energy Physics - Theory Belle and Belle II experiments have collected $e^+e^-$ collision data with center-of-mass energies at or near the $Υ(4S)$ resonance. Using total $1.4\,\mathrm{ab}^{-1}$ combined dataset, we present new measurements of branching fractions for $Ξ_c^{0/+}$ and $Λ_c^+$ baryons, including several first observations. Additionally, we report the initial search for $CP$ violation in singly Cabibbo-suppressed three-body decays of charmed baryons, providing a test of $U$-spin symmetry. |
| title | Charmed baryon decays at Belle and Belle II |
| topic | High Energy Physics - Experiment High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2603.21722 |