The $Y(4230)$ as a $D_1\bar{D}$ molecule

Abstract

We show that the currently available data are consistent with $Y(4230)$ being a $D_1\bar{D}$ hadronic molecule. By a simultaneous fit to data from $e^{+}{e}^{-}\to D^0{D}^{\ast -}{\pi }^{+},J/\psi {\pi }^{+}{\pi }^{-},J/\psi K^{+}{K}^{-},h_c{\pi }^{+}{\pi }^{-},J/\psi \eta ,{\chi }_{c0}\omega ,{\chi }_{c1}(3872)\gamma$ and ${\mu }^{+}{\mu }^{-}$, we demonstrate that this single state can explain the experimental signals in the mass range from $4.2$ to $4.35\mathrm{GeV}.$

Comments: The proceeding is submitted for the 17th International Workshop on Meson Physics Krakow, Poland 22nd - 27th June 2023