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First Observation of the Radiative Decay $D^0 \to γω$
We report the first observation of the radiative charm decay $D^0 \to γω$ with a significance of $6.0σ$. The analysis uses 20.3\,$\rm{fb}^{-1}$ of $e^+e^-$ collision data collected by the BESIII detector at a center-of-mass energy of 3.773\,GeV, and employs a deep learning strategy based on the Part
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