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${{\mathit \Lambda}}$ BARYONS
($\mathit S$ = $-1$, $\mathit I$ = 0)
${{\mathit \Lambda}^{0}}$ = ${\mathit {\mathit u}}$ ${\mathit {\mathit d}}$ ${\mathit {\mathit s}}$

INSPIRE JSON (beta) PDGID:

${{\mathit \Lambda}{(1690)}}$

$I(J^P)$ = $0(3/2^{-})$

The measurements of the mass, width, and elasticity published before 1974 are now obsolete and have been omitted. They were last listed in our 1982 edition Physics Letters 111B 1 (1982).

${{\mathit \Lambda}{(1690)}}$ POLE POSITION

$1680\text{ to }1700\text{ }(\approx1690) $ MeV

$-2{\times }$IMAGINARY PART

$60\text{ to }80\text{ }(\approx70) $ MeV

${{\mathit \Lambda}{(1690)}}$ POLE RESIDUES

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(1690)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}}$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(1690)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(1690)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \eta}}$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(1690)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \sigma}}$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(1690)}}$ $\rightarrow$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ , ${\mathit S}{\mathrm -wave}$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(1690)}}$ $\rightarrow$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ , ${\mathit D}{\mathrm -wave}$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(1690)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , ${\mathit S}{\mathrm -wave}$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(1690)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , ${\mathit D}{\mathrm -wave}$

${{\mathit \Lambda}{(1690)}}$ MASS

$1685\text{ to }1695\text{ }(\approx1690) $ MeV

${{\mathit \Lambda}{(1690)}}$ WIDTH

$60\text{ to }80\text{ }(\approx70) $ MeV

${{\mathit \Lambda}{(1690)}}$ DECAY MODES

${{\mathit N}}{{\overline{\mathit K}}}$

${{\mathit \Sigma}}{{\mathit \pi}}$

${{\mathit \Lambda}}{{\mathit \sigma}}$

$(5.0\pm{2.0})\%$

${{\mathit \Lambda}}{{\mathit \pi}}{{\mathit \pi}}$

${{\mathit \Sigma}}{{\mathit \pi}}{{\mathit \pi}}$

${{\mathit \Lambda}}{{\mathit \eta}}$

${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ , ${\mathit S}{\mathrm -wave}$

${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ , ${\mathit D}{\mathrm -wave}$

$(3.0\pm{2.0})\%$

${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=1/2, ${\mathit D}{\mathrm -wave}$

${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2, ${\mathit S}{\mathrm -wave}$

${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2, ${\mathit D}{\mathrm -wave}$

FOOTNOTES

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