D. Wei

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hep-ex2025

Study of the electromagnetic Dalitz decay $J / I ¨ \to e^{+} e^{-} I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

We report the first measurement of the di-electron invariant mass dependent transition form factor in the electromagnetic Dalitz decay $J / I ¨ \to e^{+} e^{-} I ¨ ^{0}$ using $(10087 \pm 44) \…

hep-ex2024

Search for the double Dalitz decays $I^\cdot / I^\cdot^{'} \to e^{+} e^{-} I^¼^{+} I^¼^{-}$ and $I^\cdot^{'} \to I^¼^{+} I^¼^{-} I^¼^{+} I^¼^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +653

Using a data sample of $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector, we search for the decays $I^\cdot / I^\cdot^{'} \to e^{+} e^{-} I^¼^{+} I^¼^{-}$ and $Î·' \to Î¼^+Î¼^-Î…

Study of the electromagnetic Dalitz decay J/I¨→e+e−I¨0

Search for the double Dalitz decays I^⋅/I^⋅′→e+e−I^¼+I^¼− and I^⋅′→I^¼+I^¼−I^¼+I^¼−

Study of the electromagnetic Dalitz decay $J / I ¨ \to e^{+} e^{-} I ¨ ^{0}$

Search for the double Dalitz decays $I^\cdot / I^\cdot^{'} \to e^{+} e^{-} I^¼^{+} I^¼^{-}$ and $I^\cdot^{'} \to I^¼^{+} I^¼^{-} I^¼^{+} I^¼^{-}$