DOUBLY CHARMED BARYONS
($\boldsymbol C$ = $+2$)
${{\mathit \Xi}_{{cc}}^{++}}$ = ${{\mathit u}}{{\mathit c}}{{\mathit c}}$ , ${{\mathit \Xi}_{{cc}}^{+}}$ = ${{\mathit d}}{{\mathit c}}{{\mathit c}}$ , ${{\mathit \Omega}_{{cc}}^{+}}$ = ${{\mathit s}}{{\mathit c}}{{\mathit c}}$
INSPIRE search

${{\boldsymbol \Xi}_{{cc}}^{++}}$ $I(J^P)$ = $?(?^{?})$

A nerrow peak seen in 13 TeV ${{\mathit p}}{{\mathit p}}$ collisions in ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit K}^{-}}$2 ${{\mathit \pi}^{+}}$ with a significance of 12 standard deviations. Supported by measurements at 8 TeV by the same collaboration.
${{\mathit \Xi}_{{cc}}^{++}}$ MASS   $3621.4 \pm0.8$ MeV 
$\Gamma_{1}$ ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}$ seen880