${{\boldsymbol \Sigma}}$ BARYONS
($\boldsymbol S$ = $-1$, $\boldsymbol I$ = 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 search

${{\boldsymbol \Sigma}{(2455)}}$ Bumps $I(J^P)$ = $1(?^{?})$

There is also some slight evidence for ${{\mathit Y}^{*}}$ states in this mass region from the reaction ${{\mathit \gamma}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit X}}$ $-$ see GREENBERG 1968 .

${{\mathit \Sigma}{(2455)}}$ MASS

$\approx2455$ MeV

${{\mathit \Sigma}{(2455)}}$ WIDTH

Decay Modes

$\Gamma_{1}$

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

981