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${{\mathit \Sigma}}$ 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 PDGID: B047

${{\mathit \Sigma}{(2030)}}$ $I(J^P)$ = $1(7/2^{+})$

Discovered by COOL 1966 and by WOHL 1966. For most results published before 1974 (they are now obsolete), see our 1982 edition Physics Letters 111B 1 (1982). This entry only includes results from partial-wave analyses. Parameters of peaks seen in cross sections and invariant-mass distributions around 2030 MeV may be found in our 1984 edition, Reviews of Modern Physics 56 S1 (1984).

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▸  exp ${{\mathit \Sigma}{(2030)}}$ POLE POSITION

REAL PART 2010 TO 2030 $(\approx 2020 )$ MeV

$-2{\times }$IMAGINARY PART 130 TO 190 $(\approx 160 )$ MeV

▸  exp ${{\mathit \Sigma}{(2030)}}$ POLE RESIDUES

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}}$ $0.20$ $\pm0.04$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $0.07$ $\pm0.02$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$ $0.18$ $\pm0.04$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit \Xi}}{{\mathit K}}$ $0.01$ $\pm0.01$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ , ${\mathit F}{\mathrm -wave}$ $0.04$ $\pm0.03$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ , ${\mathit H}{\mathrm -wave}$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit \Lambda}{(1520)}}{{\mathit \pi}}$ , ${\mathit D}{\mathrm -wave}$ $0.03$ $\pm0.02$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit \Lambda}{(1520)}}{{\mathit \pi}}$ , ${\mathit G}{\mathrm -wave}$ $0.02$ $\pm0.02$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit \Delta}}{{\overline{\mathit K}}}$ , ${\mathit F}{\mathrm -wave}$ $0.16$ $\pm0.06$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit \Delta}}{{\overline{\mathit K}}}$ , ${\mathit H}{\mathrm -wave}$ $0.04$ $\pm0.02$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=1/2 , ${\mathit F}{\mathrm -wave}$ $0.02$ $\pm0.02$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2 , ${\mathit F}{\mathrm -wave}$ $0.16$ $\pm0.09$

Normalized residue in ${{\mathit N}}$ ${{\overline{\mathit K}}}$ $\rightarrow$ ${{\mathit \Sigma}{(2030)}}$ $\rightarrow$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2 , ${\mathit H}{\mathrm -wave}$

${{\mathit \Sigma}{(2030)}}$ MASS 2025 TO 2040 $(\approx 2030 )$ MeV

${{\mathit \Sigma}{(2030)}}$ WIDTH 150 TO 200 $(\approx 180 )$ MeV

${{\mathit \Sigma}{(2030)}}$ DECAY MODES

Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit N}}{{\overline{\mathit K}}}$ $(17-23) \%$ 702   $\Gamma_{2}$ ${{\mathit \Lambda}}{{\mathit \pi}}$ $(17-23) \%$ 700   $\Gamma_{3}$ ${{\mathit \Sigma}}{{\mathit \pi}}$ $(5-10) \%$ 657   $\Gamma_{4}$ ${{\mathit \Xi}}{{\mathit K}}$ <2 $\%$ 422   $\Gamma_{5}$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ $(5-15) \%$ 532   $\Gamma_{6}$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ , ${\mathit F}{\mathrm -wave}$ ($1.0$ $\pm1.0$ ) $\%$ 532   $\Gamma_{7}$ ${{\mathit \Sigma}{(1385)}}{{\mathit \pi}}$ , ${\mathit H}{\mathrm -wave}$ 532   $\Gamma_{8}$ ${{\mathit \Lambda}{(1520)}}{{\mathit \pi}}$ $(10-20) \%$ 431   $\Gamma_{9}$ ${{\mathit \Lambda}{(1520)}}{{\mathit \pi}}$ , ${\mathit D}{\mathrm -wave}$ 431   $\Gamma_{10}$ ${{\mathit \Lambda}{(1520)}}{{\mathit \pi}}$ , ${\mathit G}{\mathrm -wave}$ 431   $\Gamma_{11}$ ${{\mathit \Delta}{(1232)}}{{\overline{\mathit K}}}$ $(10-20) \%$ 498   $\Gamma_{12}$ ${{\mathit \Delta}{(1232)}}{{\overline{\mathit K}}}$ , ${\mathit F}{\mathrm -wave}$ ($15$ $\pm5$ ) $\%$ 498   $\Gamma_{13}$ ${{\mathit \Delta}{(1232)}}{{\overline{\mathit K}}}$ , ${\mathit H}{\mathrm -wave}$ ($1.0$ $\pm1.0$ ) $\%$ 498   $\Gamma_{14}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ 439   $\Gamma_{15}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=1/2, ${\mathit F}{\mathrm -wave}$ 439   $\Gamma_{16}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2, ${\mathit F}{\mathrm -wave}$ ($14$ $\pm8$ ) $\%$ 439   $\Gamma_{17}$ ${{\mathit N}}{{\overline{\mathit K}}^{*}{(892)}}$ , $\mathit S$=3/2, ${\mathit H}{\mathrm -wave}$ 439   $\Gamma_{18}$ ${{\mathit \Lambda}{(1820)}}{{\mathit \pi}}$ , ${\mathit P}{\mathrm -wave}$ 152