Analysis of the decay $Y(4500)\to D^{\ast }{\bar{D}}^{\ast }\pi$ with the light-cone QCD sum rules

Abstract

In this work, we tentatively assign the $Y(4500)$ as the $[uc{]}_{\tilde{A}}[\overline{uc}{]}_V+[uc{]}_V[\overline{uc}{]}_{\tilde{A}}+[dc{]}_{\tilde{A}}[\overline{dc}{]}_V+[dc{]}_V[\overline{dc}{]}_{\tilde{A}}$ tetraquark state with the quantum numbers $J^{PC}=1^{--}$, and study the three-body strong decay $Y(4500)\to D^{\ast -}{D}^{\ast 0}{\pi }^{+}$ with the light-cone QCD sum rules. It is the first time to use the light-cone QCD sum rules to calculate the four-hadron coupling constants, the approach can be extended to study other three-body strong decays directly and diagnose the $X$, $Y$ and $Z$ states.

11 pages, 3 figure

References in corpus (7)

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Cited by in corpus (7)

• Analysis of the vector hidden-charm-hidden-strange tetraquark states with implicit P-waves
• The $\Lambda$-type P-wave bottom baryon states via the QCD sum rules
• Strong decays of the vector tetraquark states with the masses about $4.5\mathrm{GeV}$ via the QCD sum rules
• Strong decays of the fully-charm tetraquark states with explicit P-waves via the QCD sum rules
• Three-body strong decays of the $Y(4230)$ via the light-cone QCD sum rules
• Two-body strong decays of the hidden-charm tetraquark molecular states via the QCD sum rules
• Two-body strong decays of the pseudoscalar hidden-charm tetraquark states via the QCD sum rules