${{\boldsymbol \Sigma}}$ 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)
$\Gamma_{1}$ ${{\mathit N}}{{\overline{\mathit K}}}$ 433
$\Gamma_{2}$ ${{\mathit \Lambda}}{{\mathit \pi}}$ 463
$\Gamma_{3}$ ${{\mathit \Sigma}}{{\mathit \pi}}$ 410
$\Gamma_{4}$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ 251
$\Gamma_{5}$ ${{\mathit \Lambda}}{{\mathit \pi}}{{\mathit \pi}}$ (including ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ )