PoS - Proceedings of Science
Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Parallel: Strong Interactions and Hadron Physics
Observation of $\gamma(4S) → \eta’ \gamma(1S)$ and $\gamma(2S) → \Gamma \eta_b(1S)$ at Belle
B. Fulsom* and  On behalf of the BELLE Collaboration
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Published on: August 02, 2019
Bottomonium is the bound state of a bottom quark and its anti-quark counterpart. This talk presents two recent first observations from the Belle experiment related to hadronic and radiative decays in the bottomonium system. The first is the observation of Y(4S) -> eta' Y(1S), and the second is the decay of Y(2S) -> gamma eta_b(1S). The purpose of this talk is to present details of both analyses.
DOI: https://doi.org/10.22323/1.340.0144
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