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Radiative and Dalitz decays of $Υ(1S)$ in the light of the ATOMKI X17 anomaly
We study the radiative decay $Υ(1S)\to η_bγ$ and the Dalitz decay $Υ(1S)\to η_b e^+ e^-$ within the framework of the Covariant Confined Quark Model. We provide theoretical predictions for the hadronic form factor, the radiative decay constant, and the decay branching fractions. Within the Standard M
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