Scalar-Quark Bound-State Interpretation of theζ(8.3)

We interpret the $\zeta \left(8.3\mathrm{} \mathrm{GeV}\right)$ as the $0^{++}$ ground state of a scalar-quark ($\sigma \bar{\sigma }$) bound system where $\sigma$ is a color triplet and has electric charge $\mathrm{}\left|Q\right|=\frac{1}{3}$. With the use of the quarkonium potential model, the energy of the third ($1^{--}$) $P$ state is calculated to be within 50 MeV of the $\Upsilon$ state. If it falls within the machine energy spread (20 MeV at DORIS) of the $\Upsilon$, all existing data can be understood.