${{\mathit \Sigma}}$ 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:
B100

${{\mathit \Sigma}{(1770)}}$

$I(J^P)$ = $1(1/2^{+})$ 
Evidence for this state now rests solely on solution 1 of BAILLON 1975 , (see the footnotes) but the ${{\mathit \Lambda}}{{\mathit \pi}}$ partial-wave amplitudes of this solution are in disagreement with amplitudes from most other ${{\mathit \Lambda}}{{\mathit \pi}}$ analyses. ZHANG 2013A finds no evidence for this state.
FOOTNOTES