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

INSPIRE search

${{\mathit \Lambda}_{{{c}}}{(2940)}^{+}}$ $I(J^P)$ = $0(3/2^{-})$

A narrow peak seen in ${{\mathit p}}{{\mathit D}^{0}}$ and in ${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$. It is not seen in ${{\mathit p}}{{\mathit D}^{+}}$, and therefore it is a ${{\mathit \Lambda}_{{{c}}}^{+}}$ and not a ${{\mathit \Sigma}_{{{c}}}}$. $\mathit J{}^{P} = 3/2-$ is favored, but not certain.

${{\mathit \Lambda}_{{{c}}}{(2940)}^{+}}$ MASS

$2939.6 {}^{+1.3}_{-1.5}$ MeV

${{\mathit \Lambda}_{{{c}}}{(2940)}^{+}}$ WIDTH

$20 {}^{+6}_{-5}$ MeV

${{\boldsymbol \Lambda}_{{{c}}}{(2940)}^{+}}$ DECAY MODES

$\Gamma_{1}$

${{\mathit \Lambda}_{{{c}}}}{{\mathit \eta}}$

314

$\Gamma_{2}$

${{\mathit p}}{{\mathit D}^{0}}$

seen

420

$\Gamma_{3}$

${{\mathit \Sigma}_{{{c}}}{(2455)}^{0}}{}^{,++}$ ${{\mathit \pi}^{\pm}}$

seen