Toward establishing the low-lying $P$-wave excited ${\Sigma }_c$ baryon states

Kai-Lei Wang, Xian-Hui Zhong

In this study, by combining the equal spacing rule with recent observations of ${\Omega }_c(X)$ and ${\Xi }_c(X)$ baryons, we predict the spectrum of the low-lying $\lambda$-mode $1P$-wave excited $Σ…