Low-lying $\Omega$ states with negative parity in an extended quark model with Nambu-Jona-Lasinio interaction

C. S. An, B. S. Zou

Here we investigate mixing of the low-lying three- and five-quark $\Omega$ states with spin-parity quantum numbers ${\frac{1}{2}}^{-}$ and ${\frac{3}{2}}^{-}$, employing the quark-antiquark…