${{\mathit \Sigma}}$ BARYONS
($\mathit S$ = $-1$, $\mathit I$ = 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   JSON  (beta) PDGID:
B048

${{\mathit \Sigma}{(2250)}}$

$I(J^P)$ = $1(?^{?})$ 
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
 
$\Gamma_{4}$ ${{\mathit \Xi}{(1530)}}{{\mathit K}}$   435
 
FOOTNOTES