Three-body strong decays of the $Y(4230)$ via the light-cone QCD sum rules

Abstract

We tentatively assign the $Y(4230)$ as the vector tetraquark state with a relative P-wave between the scalar diquark pair, and explore the three-body strong decays $Y(4230)\to {\bar{D}}^{\ast -}{D}^{\ast 0}{\pi }^{+}$, ${\bar{D}}^{\ast -}{D}^0{\pi }^{+}$, $J/\psi {\pi }^{+}{\pi }^{-}$ and $J/\psi K^{+}{K}^{-}$ with the light-cone QCD sum rules by assuming contact four-meson coupling constants. The resulting partial decay widths are too small to account for the experimental data, and we expect those decays take place through an intermediate meson. We can search for the intermediate states and precisely measure the branching fractions to diagnose the nature of the $Y$ states.

13 pages, 4 figures. arXiv admin note: text overlap with arXiv:2304.14153

References in corpus (27)

• Observation of Two Resonant Structures in e+e- to pi+ pi- psi(2S) via Initial State Radiation at Belle
• Measurement of e^+e^- to pi^+pi^-J/psi Cross Section via Initial State Radiation at Belle
• The Z(4430) and a New Paradigm for Spin Interactions in Tetraquarks
• Excited and exotic charmonium spectroscopy from lattice QCD
• Observation of a near-threshold enhancement in the e+e- -->Lambda_c+Lambda_c- cross section using initial-state radiation
• Precise measurement of the $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ cross section at center-of-mass energies from 3.77 to 4.60 GeV
• Are Y(4260) and {\rm Z${}_2^{+}$(4250)} ${\mathrm{D}}_1\mathrm{D}$ or ${\mathrm{D}}_0{\mathrm{D}}^{\ast }$ Hadronic Molecules?
• Evidence of Two Resonant Structures in $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{h}_c$
• A New Picture for the Formation and Decay of the Exotic $XYZ$ Mesons
• The Vector and Axial-Vector Charmonium-like States
• Study of $e^{+}{e}^{-}\to \omega {\chi }_{cJ}$ at center-of-mass energies from 4.21 to 4.42 GeV
• Evidence that the Y(4660) is a f_0(980)psi' bound state
• Observation of the $Y(4230)$ and a new structure in $e^{+}{e}^{-}\to K^{+}{K}^{-}J/\psi$
• The decay width of the $Z_c(3900)$ as an axialvector tetraquark state in solid quark-hadron duality
• Nonresonant explanation for the Y(4260) structure observed in the $e^{+}{e}^{-}\to J/\psi {\pi }^{+}{\pi }^{-}$ process
• 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
• Observation of Three Charmoniumlike States with $J^{PC}=1^{--}$ in $e^{+}{e}^{-}\to D^{\ast 0}{D}^{\ast -}{\pi }^{+}$
• The Spectrum of $P$-Wave Hidden-Charm Exotic Mesons in the Diquark Model
• Prediction of a narrow exotic hadronic state with quantum numbers $J^{PC}=0^{--}$
• Nature of the $Y(4260)$: A light-quark perspective
• Analysis of the vector tetraquark states with P-waves between the diquarks and antidiquarks via the QCD sum rules
• The decay widths of the $Z_{cs}(3985/4000)$ based on rigorous quark-hadron duality
• The strange cousin of the $Z_c(4020/4025)$ as tetraquark state
• 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 $Y(4500)$
• Mixing of X and Y states from QCD Sum Rules analysis