${{\boldsymbol \Sigma}}$ 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

# ${{\boldsymbol \Sigma}{(1770)}}$ $I(J^P)$ = $1(1/2^{+})$

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.
${{\boldsymbol \Sigma}{(1770)}}$ POLE POSITION
 REAL PART
 $-2{\times }$IMAGINARY PART
${{\boldsymbol \Sigma}{(1770)}}$ POLE RESIDUES
 Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1770)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}}$
 Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1770)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
 Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1770)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$
 Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1770)}}$ $\rightarrow$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$
 ${{\mathit \Sigma}{(1770)}}$ MASS $\approx1770$ MeV
 ${{\mathit \Sigma}{(1770)}}$ WIDTH