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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

${{\mathit \Lambda}{(2000)}}$ $I(J^P)$ = $0(1/2^{-})$

BARBARO-GALTIERI 1970 (in ${{\mathit \Sigma}}{{\mathit \pi}}$ ) and BRANDSTETTER 1972 (in ${{\mathit \Lambda}}{{\mathit \omega}}$ ) proposed a state at about this mass. Those analyses are considered to be obsolete, see NAKKASYAN 1975 and PDG 2018 .

${{\mathit \Lambda}{(2000)}}$ MASS   $\approx2000$ MeV

${{\mathit \Lambda}{(2000)}}$ WIDTH

${{\mathit \Lambda}{(2000)}}$ Decay Modes
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit N}}{{\overline{\mathit K}}}$   $(27\pm{6})\%$ 681   $\Gamma_{2}$ ${{\mathit \Sigma}}{{\mathit \pi}}$   637   $\Gamma_{3}$ ${{\mathit \Lambda}}{{\mathit \eta}}$   $(16\pm{7})\%$ 532   $\Gamma_{4}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=1/2, ${\mathit S}{\mathrm -wave}$   403   $\Gamma_{5}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2, ${\mathit D}{\mathrm -wave}$   403
FOOTNOTES