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

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arxiv 0902.1300 v3 pith:DWQXEK4Z submitted 2009-02-08 hep-ph hep-exnucl-exnucl-th

Yuan-Jiang Zhang , Gang Li , Qiang Zhao This is my paper · ORCID
classification hep-phhep-exnucl-exnucl-th
keywords non-decaydecaysmesonozi-rule-evadingtowardsunderstandingavailable
verification ladder T0 review T1 audit T2 compute T3 formal
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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 $\psi(3770)\to J/\psi\eta$, $\phi\eta$ and $\rho\pi$, we succeed in making a quantitative prediction for all $\psi(3770)\to VP$ with $BR_{VP}$ 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.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Two-body Hidden Charm Decays of $D$ Wave Charmonia

    hep-ph 2025-01 conditional novelty 6.0 of 10

    Using a meson-loop model calibrated to psi(3770) to J/psi eta, the paper predicts Gamma(psi2(3823) to J/psi eta) = 29.6 keV and smaller eta_c omega and psi3(3842) rates.

  2. Discovery potential of charmonium $2P$ states through the $e^+e^- \to \gamma D\bar{D}$ processes

    hep-ph 2024-12 conditional novelty 5.0 of 10

    Using the measured e+e- -> gamma X(3872) cross section as a reference, the authors predict measurable e+e- -> gamma chi_c0(2P) and e+e- -> gamma chi_c2(2P) production and propose the gamma D Dbar final state as a sear...

  3. Unquenched Charmonium and Beyond

    hep-ph 2026-02 conditional novelty 2.0 of 10

    This Lanzhou-group review argues that coupled-channel (unquenched) effects, not exotic constituents, are the common thread explaining charmonium anomalies from the rho-pi puzzle to the Y-problem states.

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