while the corresponding factor for $K^+ K^{*0}(892) + {\rm c.c.}$ is at least $\sim 20$.

  ----------------------- --------------------- ----------------- -- ------------------------ --------------- ---------------------------------
        Decay mode                                                                                            
                                                                                                              
                                                                                                              
                               ${\cal B}$        $\Gamma$ (keV)             ${\cal B}$         $\Gamma$ (eV)   ${\Gamma_{\rm pred}}^{~a}$ (eV)
        $\rho \pi$         $(1.27 \pm 0.09)\%$   $1.10 \pm 0.10$      $< 2.8 \times 10^{-5}$     $ < 8.6$               $443 \pm 63$
   ${K^+ K^{*-}(892)}^b$   $(0.50 \pm 0.04)\%$   $0.44 \pm 0.04$      $< 3.0 \times 10^{-5}$     $ < 9.2$               $177 \pm 24$
  ----------------------- --------------------- ----------------- -- ------------------------ --------------- ---------------------------------

  : Total widths, branching ratios, and derived partial widths for $J/\psi$ and $\pp$ decays.

Suzuki [@Suz01] has proposed that the coupling of $\pp$ to virtual pairs of charmed particles could provide an amplitude which interferes destructively with the perturbative QCD process $\pp \to 3g$ in the specific cases of $\rho \pi$ and $K \overline{K}^*(892) + {\rm c.c.}$ hadronic decays. If this is the case, and if virtual charmed particle pairs also play a role in mixing $\pp$ and $\ppp$, we would expect a similar amplitude to contribute to $\ppp \to D^{(*)} \overline{D}^{(*)} \to \rho \pi$ or $K
\overline{K}^*(892) + {\rm c.c.}$

In the absence of a detailed coupled-channel analysis, let us assume that the main effect on $\pp$ and $\ppp$ of their 