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arXiv · 2309.11970

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

Leon von Detten·Christoph Hanhart·Vadim Baru
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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 $e^+ e^- \rightarrow D^0 D^{* -} π^+,\: J/ψπ^+ π^-,\: J/ψK^+ K^-,\: h_c π^+ π^-,\: J/ψη,\: χ_{c0} ω,\: χ_{c1}(3872) γ$ and $μ^+ μ^-$, we demonstrate that this single state can explain the experimental signals in the mass range from $4.2$ to $4.35\, \rm{GeV}.$

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Leon von Detten, Christoph Hanhart, Vadim Baru. 2023-09-21. The $Y(4230)$ as a $D_1 \bar{D}$ molecule. https://arxiv.org/abs/2309.11970

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