${{\boldsymbol \Sigma}}$ BARYONS($\boldsymbol S$ = $-1$, $\boldsymbol I$ = 1) ${{\mathit \Sigma}^{+}}$ = ${\mathit {\mathit u}}$ ${\mathit {\mathit u}}$ ${\mathit {\mathit s}}$, ${{\mathit \Sigma}^{0}}$ = ${\mathit {\mathit u}}$ ${\mathit {\mathit d}}$ ${\mathit {\mathit s}}$, ${{\mathit \Sigma}^{-}}$ = ${\mathit {\mathit d}}$ ${\mathit {\mathit d}}$ ${\mathit {\mathit s}}$ INSPIRE search

# ${{\boldsymbol \Sigma}{(1690)}}$ Bumps $I(J^P)$ = $1(?^{?})$

See the note preceding the ${{\mathit \Sigma}{(1670)}}$ Listings. Seen in production experiments only, mainly in ${{\mathit \Lambda}}{{\mathit \pi}}$ .
 ${{\mathit \Sigma}{(1690)}}$ MASS (PRODUCTION EXPERIMENTS) $\approx1690$ MeV
 ${{\mathit \Sigma}{(1690)}}$ WIDTH (PRODUCTION EXPERIMENTS)