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The Y(4230) as a D₁ bar{D} molecule

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arxiv 2309.11970 v1 pith:IPC3NMZ5 submitted 2023-09-21 hep-ph

The Y(4230) as a D₁ bar{D} molecule

classification hep-ph
keywords datamoleculeavailableconsistentcurrentlydemonstrateexperimentalexplain
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 $e^+ e^- \rightarrow D^0 D^{* -} \pi^+,\: J/\psi \pi^+ \pi^-,\: J/\psi K^+ K^-,\: h_c \pi^+ \pi^-,\: J/\psi \eta,\: \chi_{c0} \omega,\: \chi_{c1}(3872) \gamma$ and $\mu^+ \mu^-$, we demonstrate that this single state can explain the experimental signals in the mass range from $4.2$ to $4.35\, \rm{GeV}.$

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