The Hidden Charm Decay of $X(3872),Y(3940)$ and Final State Interaction Effects

Abstract

We investigate whether the final state interaction (FSI) effect plays a significant role in the large hidden charm decay width of X(3872) and Y(3940) using a model. Our numerical result suggests (1) the FSI contribution to $X(3872)\to J/\psi \rho$ is tiny; (2) $\Gamma [Y(3940)\to D{\bar{D}}^{\ast }+\text{h.c.}\to J/\psi \omega ]$ from FSI is around several keV, far less than Belle's experimental value 7 MeV.

arXiv comment5 pages, 3 figures, 1 table. Version to appear in Physics Letters B

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Cited by in corpus (50)

• The hidden-charm pentaquark and tetraquark states
• Estimate for the X(3872) to gamma J/psi decay width
• New Hadron States
• Y(4143) is probably a molecular partner of Y(3930)
• X(3872) as a hadronic molecule and its decays to charmonium states and pions
• X(3872) as a molecular DD* state in a potential model
• J/psi gamma and psi(2S) gamma decay modes of the X(3872)
• Decays of the X(3872) and ${\chi }_{c1}(2P)$ charmonium
• Charm couplings and form factors in QCD sum rules
• Exotic nuclei with open heavy flavor mesons
• Hadron interaction with heavy quarkonia
• Scalar Resonance Contributions to the Dipion Transition Rates of ${\rm Y}(4S,5S)$ in the re-scattering model
• The puzzle of excessive non-$D\bar{D}$ component of the inclusive $\psi (3770)$ decay and the long-distant contribution
• The hidden charm decay of Y(4140) by the rescattering mechanism
• ρD^*D^* vertex from QCD sum rules
• Peak shifts due to $B^{(\ast )}-{\bar{B}}^{(\ast )}$ rescattering in ${\rm Y}(5S)$ dipion transitions
• Nonresonant explanation for the Y(4260) structure observed in the $e^{+}{e}^{-}\to J/\psi {\pi }^{+}{\pi }^{-}$ process
• Analysis of the vertices D^*D^* P, D^*D V and DDV with light-cone QCD sum rules
• A Phenomenological analysis on isospin-violating decay of $X(3872)$
• $D^{\ast }D\rho$ vertex from QCD sum rules
• Strong and radiative decays of DΞmolecular state and newly observed ${\Omega }_c$ states
• ${\rm Y}(4S,5S)\to {\rm Y}(1S)\eta$ transitions in the rescattering model and the new BaBar measurement
• Long-distant contribution and ${\chi }_{c1}$ radiative decays to light vector meson
• Analysis of the strong coupling constant $G_{D_s^{\ast }{D}_s\varphi }$ and the decay width of $D_s^{\ast }\to D_s\gamma$ with QCD sum rules
• Analysis of the vertices $DDV$ and $D^{\ast }DV$ with light-cone QCD sum rules
• Study on the rare decays of $Y(4630)$ induced by final state interactions
• Using $X(3823)\to J/\psi {\pi }^{+}{\pi }^{-}$ to identify coupled-channel effects
• The dispersive contribution of $\rho (1450,1700)$ decays and X(1576)
• Contribution of final state interaction to the branching ratio of $B\to J/\psi D$
• X(1576) and the Final State Interaction Effect
• Couplings between the $\rho$ and $D$- and $D^{\ast }$-mesons
• Understanding $B^{-}\to X(3823)K^{-}$ via rescattering mechanism and predicting $B^{-}\to {\eta }_{c2}{(}^1{D}_2)/{\psi }_3{(}^3{D}_3)K^{-}$
• Understanding the branching ratios of χ_{c1}\toϕϕ, ωω, ωϕobserved at BES-III
• The two-body open charm decays of $Z^{+}(4430)$
• Role of the newly measured $B\to KD\bar{D}$ process to establish ${\chi }_{c0}(2P)$ state
• Spectroscopy of Mesons with Heavy Quarks
• Study on possible molecular states composed of ${\Lambda }_c\bar{D}$ (${\Lambda }_{b}B$) and ${\Sigma }_c\bar{D}$ (${\Sigma }_{b}B$) within the Bethe-Salpeter framework
• Production of $Z_{cs}$ in $B$ and $B_s$ decay
• Effects of hadronic loops on the direct CP violation of $B_c$
• Hidden-charm decays of $X(3915)$ and $Z(3930)$ as the P-wave charmonia
• Analysis of hadronic coupling constants $G_{B_c^{\ast }{B}_c{\rm Y}}$, $G_{B_c^{\ast }{B}_{c}J/\psi }$, $G_{B_c{B}_c{\rm Y}}$ and $G_{B_c{B}_{c}J/\psi }$ with QCD sum rules
• Strong coupling constants and radiative decays of the heavy tensor mesons
• A novel explanation of charmonium-like structure in $e^{+}{e}^{-}\to \psi (2S){\pi }^{+}{\pi }^{-}$
• Final state hadronic interactions and non-resonant $B^{\pm }\to K^{\pm }{\pi }^{+}{\pi }^{-}$ decays
• A QCD sum rules calculation of the $J/\psi D_s^{\ast }{D}_s$ strong coupling constant
• $B^{(\ast )}{\bar{B}}^{(\ast )}$ intermediate state contribution to ${\rm Y}(4S,5S)\to {\eta }_b+\gamma$ radiative decay
• A study of meson-meson potential in the chiral quark model
• Heavy-meson chiral Lagrangians, effective flavored couplings, SU(4) flavor breaking and their consequences
• Evaluation of the $B_c^{+}\to D^0{K}^{+}$ decay by the factorization approaches and applying the effects of the final state interaction
• ${\bar{D}}^0{D}^{0\ast }$ $(D^0{\bar{D}}^{0\ast })$ System in QCD-Improved Many Body Potential