${{\mathit \Sigma}}$ 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 search

${{\boldsymbol \Sigma}{(1900)}}$

$I(J^P)$ = $1(1/2^{-})$ 
${{\boldsymbol \Sigma}{(1900)}}$ POLE POSITION
REAL PART   $1936 \pm10$  
 
$-2{\times }$IMAGINARY PART   $150 \pm25$  
 
${{\boldsymbol \Sigma}{(1900)}}$ POLE RESIDUES
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}}$   $0.45 \pm0.09$  
 
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$   $0.38 \pm0.08$  
 
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \eta}}$   $0.03 \pm0.01$  
 
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$   $0.14 \pm0.05$  
 
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit \Xi}}{{\mathit K}}$   $0.08 \pm0.05$  
 
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$   $0.16 \pm0.05$  
 
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit \Lambda}{(1520)}}{{\mathit \pi}}$   $0.04 \pm0.02$  
 
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit \Delta}}{{\overline{\mathit K}}}$   $0.11 \pm0.04$  
 
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=1/2, ${\mathit S}{\mathrm -wave}$   $0.17 \pm0.06$  
 
Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(1900)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2, ${\mathit D}{\mathrm -wave}$   $0.05 \pm0.04$  
 
${{\mathit \Sigma}{(1900)}}$ MASS   $1900\text{ to }1950\text{ }(\approx1925) $ MeV 
 
${{\mathit \Sigma}{(1900)}}$ WIDTH   $140\text{ to }190\text{ }(\approx165) $ MeV 
 
$\Gamma_{1}$ ${{\mathit N}}{{\overline{\mathit K}}}$  0.40 to 0.55 to 0.70 626
 
$\Gamma_{2}$ ${{\mathit \Sigma}}{{\mathit \pi}}$  0.10 to 0.25 to 0.40 584
 
$\Gamma_{3}$ ${{\mathit \Sigma}}{{\mathit \eta}}$  $(1.0\pm{1.0})\%$ 391
 
$\Gamma_{4}$ ${{\mathit \Lambda}}{{\mathit \pi}}$  $(6.0\pm{2.0})\%$ 630
 
$\Gamma_{5}$ ${{\mathit \Xi}}{{\mathit K}}$  $(3.0\pm{2.0})\%$ 298
 
$\Gamma_{6}$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$  $(7.0\pm{3.0})\%$ 451
 
$\Gamma_{7}$ ${{\mathit \Lambda}{(1520)}}{{\mathit \pi}}$  342
 
$\Gamma_{8}$ ${{\mathit \Delta}}{{\overline{\mathit K}}}$  $(2.5\pm{1.0})\%$ 394
 
$\Gamma_{9}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=1/2 , ${\mathit S}{\mathrm -wave}$  $(7.0\pm{3.0})\%$ 299
 
$\Gamma_{10}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2 , ${\mathit D}{\mathrm -wave}$  299
 
FOOTNOTES