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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 PDGID:

${{\mathit \Lambda}{(2085)}}$

$I(J^P)$ = $0(7/2^{+})$

was ${{\mathit \Lambda}{(2020)}}$

In LITCHFIELD 1971, need for the state rests solely on a possibly inconsistent polarization measurement at 1.784 ${\mathrm {GeV/}}\mathit c$. HEMINGWAY 1975 does not require this state. GOPAL 1977 does not need it in either ${{\mathit N}}{{\overline{\mathit K}}}$ or ${{\mathit \Sigma}}{{\mathit \pi}}$. With new ${{\mathit K}^{-}}{{\mathit n}}$ angular distributions included, DECLAIS 1977 sees it. However, this and other new data are included in GOPAL 1980 and the state is not required. BACCARI 1977 weakly supports it.

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▸ ${{\mathit \Lambda}{(2085)}}$ POLE POSITION

▸ ${{\mathit \Lambda}{(2085)}}$ POLE RESIDUES

${{\mathit \Lambda}{(2085)}}$ MASS

${{\mathit \Lambda}{(2085)}}$ WIDTH

${{\mathit \Lambda}{(2085)}}$ DECAY MODES

Mode

Fraction ($\Gamma_i$ / $\Gamma$)

Scale Factor/
Conf. Level

P(MeV/c)

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

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

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

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

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

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

($30$ $\pm9$ ) $\%$

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

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

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

${{\mathit \Lambda}}{{\mathit \omega}}$

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