Review of the Low-Lying Excited Baryons ∑ （1/2 ）

>Strong empirical and phenomenological indications exist for large sea-quark admixtures in the low-lying excited baryons. Investigating the low-lying excited baryon ∑ * （1/2 - ） is important for determining the nature of the low-lying excited baryons. We review the experimental and theoretical progress on the studies of the ∑ * （1/2 - ）.