${{\boldsymbol \Sigma}}$ 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

${{\boldsymbol \Sigma}{(2250)}}$ $I(J^P)$ = $1(?^{?})$ 

Results from partial-wave analyses are too weak to warrant separating them from the production and cross-section experiments. LASINSKI 1971 in ${{\overline{\mathit K}}}{{\mathit N}}$ using a Pomeron + resonances model, and DEBELLEFON 1976 , DEBELLEFON 1977 , and DEBELLEFON 1978 in energy-dependent partial-wave analyses of ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$ , ${{\mathit \Sigma}}{{\mathit \pi}}$ , and ${{\mathit N}}{{\overline{\mathit K}}}$ , respectively, suggest two resonances around this mass.
${{\mathit \Sigma}{(2250)}}$ MASS   $2210\text{ to }2280\text{ }(\approx2250) $ MeV 
${{\mathit \Sigma}{(2250)}}$ WIDTH   $60\text{ to }150\text{ }(\approx100) $ MeV 
$\Gamma_{1}$ ${{\mathit N}}{{\overline{\mathit K}}}$  $<10\%$ 851
$\Gamma_{2}$ ${{\mathit \Lambda}}{{\mathit \pi}}$  seen 842
$\Gamma_{3}$ ${{\mathit \Sigma}}{{\mathit \pi}}$  seen 803
$\Gamma_{4}$ ${{\mathit N}}{{\overline{\mathit K}}}{{\mathit \pi}}$  800
$\Gamma_{5}$ ${{\mathit \Xi}{(1530)}}{{\mathit K}}$  435