pdgLive Home   >   Baryon Summary Table   >   ${{\mathit \Lambda}{(2110)}}$

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

INSPIRE   JSON PDGID: B035

${{\mathit \Lambda}{(2110)}}$ $I(J^P)$ = $0(5/2^{+})$

For results published before 1974 (they are now obsolete), see our 1982 edition Physics Letters 111B 1 (1982). All the references have been retained. This resonance is in the Baryon Summary Table, but the evidence for it could be better.

Expand/Collapse All

▸  exp ${{\mathit \Lambda}{(2110)}}$ POLE POSITION

REAL PART $2048$ $\pm10$ MeV

$-2{\times }$IMAGINARY PART $255$ $\pm20$ MeV

▸  exp ${{\mathit \Lambda}{(2110)}}$ POLE RESIDUE

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(2110)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}}$ $0.020$ $\pm0.005$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(2110)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $0.13$ $\pm0.03$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(2110)}}$ $\rightarrow$ ${{\mathit \Xi}}{{\mathit K}}$ $0.005$ $\pm0.005$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(2110)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \omega}}$, $\mathit S$=1/2, ${\mathit P}{\mathrm -wave}$ $0.01$ $\pm0.01$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(2110)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \omega}}$, $\mathit S$=3/2, ${\mathit P}{\mathrm -wave}$ $0.03$ $\pm0.01$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Lambda}{(2110)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \omega}}$, $\mathit S$=3/2, ${\mathit F}{\mathrm -wave}$ $0.01$ $\pm0.01$

${{\mathit \Lambda}{(2110)}}$ MASS 2050 TO 2130 $(\approx 2090 )$ MeV

${{\mathit \Lambda}{(2110)}}$ WIDTH 200 TO 300 $(\approx 250 )$ MeV

${{\mathit \Lambda}{(2110)}}$ DECAY MODES

Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit N}}{{\overline{\mathit K}}}$ $(5-25) \%$ 744   $\Gamma_{2}$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $(10-40) \%$ 698   $\Gamma_{3}$ ${{\mathit \Lambda}}{{\mathit \omega}}$ seen 432   $\Gamma_{4}$ ${{\mathit \Lambda}}{{\mathit \omega}}$ , $\mathit S$=1/2 , ${\mathit P}{\mathrm -wave}$ 432   $\Gamma_{5}$ ${{\mathit \Lambda}}{{\mathit \omega}}$ , $\mathit S$=3/2 , ${\mathit P}{\mathrm -wave}$ ($5.0$ $\pm2.0$ ) $\%$ 432   $\Gamma_{6}$ ${{\mathit \Lambda}}{{\mathit \omega}}$ , $\mathit S$=3/2 , ${\mathit F}{\mathrm -wave}$ 432   $\Gamma_{7}$ ${{\mathit \Xi}}{{\mathit K}}$ 482   $\Gamma_{8}$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ seen 576   $\Gamma_{9}$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ , ${\mathit P}{\mathrm -wave}$ 576   $\Gamma_{10}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ $(10-60) \%$ 505   $\Gamma_{11}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=1/2 505   $\Gamma_{12}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2, ${\mathit P}{\mathrm -wave}$ 505