Is theψa "ring" state?

Abstract

We propose that the newly discovered $\psi$ mesons lie on $C=-1\mathrm{}$ partners of the daughter trajectories of the Pomeron. Consequently we consider them as excited closed string or ring states of dual or non-Abelian gauge theories. We obtain the mass formula ${m_n}^2=\frac{4n}{{\alpha }^{\prime }}$ for the spin 1 daughters of the Pomeron in terms of the universal Regge slope ${\alpha }^{\prime }\simeq 0.85$ Ge${\mathrm{V}}^{-2\mathrm{}}$, and note that no new mass scale is needed to account for the $\psi$ masses ($m_{\psi }\simeq m_2, m_{{\psi }^{\prime }}\simeq m_3$). Our model requires a new symmetry group such as color to account for the narrow width of the observed $\psi \text{'}\mathrm{s}$. However, the zero quark content of the ring states and the weakness of Pomeron couplings gives further suppression to $\psi$ photoproduction, hadronic $\psi$ production, and some decay modes.