Towards a dynamical understanding of the non-$D\bar{D}$ decay of $\psi (3770)$

Abstract

We investigate the $\psi (3770)$ non-$D\bar{D}$ decays into $VP$, where $V$ and $P$ denote vector and pseudoscalar mesons, respectively, via OZI-rule-evading intermediate meson rescatterings in an effective Lagrangian theory. By identifying the leading meson loop transitions and constraining the model parameters with the available experimental data for $\psi (3770)\to J/\psi \eta$, $\varphi \eta$ and $\rho \pi$, we succeed in making a quantitative prediction for all $\psi (3770)\to VP$ with $B{R}_{VP}$ from 0.41% to 0.64%. It indicates that the OZI-rule-evading long-range interactions are still playing a role in $\psi (3770)$ strong decays, and could be a key towards a full understanding of the mysterious $\psi (3770)$ non-$D\bar{D}$ decay mechanism.

5 pages, 2 figures, proofread version to appear on Phys. Rev. Lett

References in corpus (8)

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Cited by in corpus (26)

• Heavy quarkonium: progress, puzzles, and opportunities
• Effect of charmed meson loops on charmonium transitions
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• Novel analysis of the decays psi' -> h_c pi^0 and eta_c'-> chi_{c0} pi^0
• Further study of the helicity selection rule evading mechanism in ${\eta }_c$, ${\chi }_{c0}$ and $h_c$ decaying to baryon anti-baryon pairs
• Observation of $e^{+}{e}^{-}\to {\chi }_{c0}\omega$ and missing higher charmonium $\psi (4S)$
• Searching for a $D\bar{D}$ bound state with the $\psi (3770)\to \gamma D^0{\bar{D}}^0$ decay
• Open charm effects in $e^{+}{e}^{-}\to J/\psi \eta$, $J/\psi {\pi }^0$ and $\varphi {\eta }_c$
• Confirming the existence of a new higher charmonium $\psi (4500)$ by the newly released data of $e^{+}{e}^{-}\to K^{+}{K}^{-}J/\psi$
• η transitions between charmonia with meson loop contributions
• Where are ${\chi }_{cJ}(3P)$?
• $P$-wave coupled channel effects in electron-positron annihilation
• Understanding the radiative decays of vector charmonia to light pseudoscalar mesons
• Exploring the ${\rm Y}(4S,5S,6S)\to h_b(1P)\eta$ hidden-bottom hadronic transitions
• Predicted $\Lambda \bar{\Lambda }$ and ${\Xi }^{-}{\bar{\Xi }}^{+}$ decay modes of the charmoniumlike $Y(4230)$
• Isospin violating decay of $\psi (3770)\to J/\psi +{\pi }^0$
• Open charm contributions to the E1 transitions of $\psi (3686)$ and $\psi (3770)\to \gamma {\chi }_{cJ}$
• Production of charmonium ${\chi }_{cJ}(2P)$ plus one $\omega$ meson by $e^{+}{e}^{-}$ annihilation
• Study of the processes ${\chi }_{cJ}\to {\Xi }^{-}{\bar{\Xi }}^{+}$ and ${\Xi }^0{\bar{\Xi }}^0$
• Study on the radiative decays of $h_c$ via intermediate meson loops model
• Resonance parameters of the vector charmoniumlike state $G(3900)$
• Combined study of the isospin-violating decay $D_s^{\ast }\to D_s{\pi }^0$ and radiative decay $D_s^{\ast }\to D_s\gamma$ with intermediate meson loops
• Discovery potential of charmonium $2P$ states through the $e^{+}{e}^{-}\to \gamma D\bar{D}$ processes
• Charmonium decays into ${\Lambda }_c{\bar{\Lambda }}_c$ pair governed by the hadronic loop mechanism
• Non-$D\bar{D}$ Decays into Light Meson Pairs of the $D$-Wave Charmonium ${\psi }_3(3842)$
• Measurements of charmonia decays from BESIII