pdgLive Home   >   Baryon Summary Table   >   ${{\mathit \Sigma}{(1880)}}$

${{\mathit \Sigma}}$ 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   JSON  (beta) PDGID: B067

${{\mathit \Sigma}{(1880)}}$ $I(J^P)$ = $1(1/2^{+})$

A ${\mathit P}_{\mathrm 11}$ resonance is suggested by several partial-wave analyses, but with wide variations in the mass and other parameters. We list here all claims which lie well above the ${\mathit P}_{\mathrm 11}{{\mathit \Sigma}{(1770)}}$.

${{\mathit \Sigma}{(1880)}}$ POLE POSITION

REAL PART

$-2{\times }$IMAGINARY PART

${{\mathit \Sigma}{(1880)}}$ MASS   $1820\text{ to }1940\text{ }(\approx1880) $ MeV

${{\mathit \Sigma}{(1880)}}$ WIDTH   $100\text{ to }300\text{ }(\approx200) $ MeV

Decay Modes
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit N}}{{\overline{\mathit K}}}$   0.10 to 0.20 to 0.30 592   $\Gamma_{2}$ ${{\mathit \Lambda}}{{\mathit \pi}}$   599   $\Gamma_{3}$ ${{\mathit \Sigma}}{{\mathit \pi}}$   552   $\Gamma_{4}$ ${{\mathit \Lambda}{(1520)}}{{\mathit \pi}}$ , ${\mathit D}{\mathrm -wave}$   $(2.0\pm{1.0})\%$ 302   $\Gamma_{5}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=1/2, ${\mathit P}{\mathrm -wave}$   215   $\Gamma_{6}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2, ${\mathit P}{\mathrm -wave}$   215   $\Gamma_{7}$ ${{\mathit \Delta}{(1232)}}{{\overline{\mathit K}}}$ , ${\mathit P}{\mathrm -wave}$   $(39\pm{8})\%$ 343
FOOTNOTES