Strong decays of the vector tetraquark states with the masses about $4.5\mathrm{GeV}$ via the QCD sum rules

Abstract

We suppose that there exist three vector hidden-charm tetraquark states with the $J^{PC}=1^{--}$ at the energy about $4.5\mathrm{GeV}$, and investigate the two-body strong decays systematically. We obtain thirty QCD sum rules for the hadronic coupling constants based on rigorous quark-hadron duality, then obtain the partial decay widths, therefore the total widths approximately, which are compatible with the experimental data of the $Y(4500)$ from the BESIII collaboration. The $Y(4500)$ may be one vector tetraquark state having three main Fock components, or consists of three different vector tetraquark states. We can search for the typical decays $Y\to \frac{{\bar{D}}_1^0{D}^0-{\bar{D}}^0{D}_1^0}{\sqrt{2}}$, $\frac{{\bar{D}}_1^{-}{D}^{+}-{\bar{D}}^{-}{D}_1^{+}}{\sqrt{2}}$, $\frac{{\bar{D}}_0^0{D}^{\ast 0}-{\bar{D}}^{\ast 0}{D}_0^0}{\sqrt{2}}$, $\frac{{\bar{D}}_0^{-}{D}^{\ast +}-{\bar{D}}^{\ast -}{D}_0^{+}}{\sqrt{2}}$, ${\eta }_c\omega$, $J/\psi \omega$ to diagnose the nature of the $Y(4500)$.

arXiv comment28 pages, 1 figure

References in corpus (19)

• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• Lattice QCD and QCD Sum Rule determination of the decay constants of eta_c, J/psi and hc states
• Analysis of the masses and decay constants of the heavy-light mesons with QCD sum rules
• Four-quark exotic mesons
• Analysis of the doubly-charmed tetraquark molecular states with the QCD sum rules
• About the exotic structure of $Z_{cs}$
• Analysis of the scalar, axialvector, vector, tensor doubly charmed tetraquark states with QCD sum rules
• Zc(4200)+ decay width as a charmonium-like tetraquark state
• $\{Q\bar{s}\}\{{\bar{Q}}^{{(}^{\prime })}s\}$ molecular states in QCD sum rules
• The decay width of the $Z_c(3900)$ as an axialvector tetraquark state in solid quark-hadron duality
• Analysis of the mass and width of the $X(4140)$ as axialvector tetraquark state
• Strong decays of the $Y(4660)$ as a vector tetraquark state in solid quark-hadron duality
• Analysis of the hidden-bottom tetraquark mass spectrum with the QCD sum rules
• Analysis of the scalar nonet mesons with the QCD sum rules
• Revisit the $X(4274)$ as the axialvector tetraquark state
• Analysis of the pseudoscalar hidden-charm tetraquark states with the QCD sum rules
• Analysis of the vector hidden-charm-hidden-strange tetraquark states with implicit P-waves
• Analysis of the decay $Y(4500)\to D^{\ast }{\bar{D}}^{\ast }\pi$ with the light-cone QCD sum rules
• Possible Molecular Explanation for the Resonance $Y(4500)$

Cited by in corpus (2)

• Strong decays of the fully-charm tetraquark states with explicit P-waves via the QCD sum rules
• Two-body strong decays of the hidden-charm tetraquark molecular states via the QCD sum rules