CHARMED BARYONS
($\boldsymbol C$ = $+1$)
${{\mathit \Lambda}_{{c}}^{+}}$ = ${{\mathit u}}{{\mathit d}}{{\mathit c}}$ , ${{\mathit \Sigma}_{{c}}^{++}}$ = ${{\mathit u}}{{\mathit u}}{{\mathit c}}$ , ${{\mathit \Sigma}_{{c}}^{+}}$ = ${{\mathit u}}{{\mathit d}}{{\mathit c}}$ , ${{\mathit \Sigma}_{{c}}^{0}}$ = ${{\mathit d}}{{\mathit d}}{{\mathit c}}$ ,
${{\mathit \Xi}_{{c}}^{+}}$ = ${{\mathit u}}{{\mathit s}}{{\mathit c}}$ , ${{\mathit \Xi}_{{c}}^{0}}$ = ${{\mathit d}}{{\mathit s}}{{\mathit c}}$ , ${{\mathit \Omega}_{{c}}^{0}}$ = ${{\mathit s}}{{\mathit s}}{{\mathit c}}$
INSPIRE search

${{\boldsymbol \Xi}_{{c}}^{'0}}$ $I(J^P)$ = $1/2(1/2^{+})$

The ${{\mathit \Xi}_{{c}}^{'0}}$ and ${{\mathit \Xi}_{{c}}^{'+}}$ presumably complete the SU(3) sextet whose other members are the ${{\mathit \Sigma}_{{c}}^{++}}$, ${{\mathit \Sigma}_{{c}}^{+}}$, ${{\mathit \Sigma}_{{c}}^{0}}$, and ${{\mathit \Omega}_{{c}}^{0}}$: see Fig.$~$3 in the note on Charmed Baryons. The quantum numbers given above come from this presumption but have not been measured.
${{\mathit \Xi}_{{c}}^{'0}}$ MASS   $2578.8 \pm0.5$ MeV (S = 1.2)
${{\mathit \Xi}_{{c}}^{'0}}–{{\mathit \Xi}_{{c}}^{0}}$ MASS DIFFERENCE   $108.0 \pm0.4$ MeV (S = 1.2)
The ${{\mathit \Xi}_{{c}}^{'0}}–{{\mathit \Xi}_{{c}}^{0}}$ mass difference is too small for any strong decay to occur.
$\Gamma_{1}$ ${{\mathit \Xi}_{{c}}^{0}}{{\mathit \gamma}}$ seen106