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

${{\mathit \Lambda}_{{{c}}}^{+}}$

$I(J^P)$ = $0(1/2^{+})$ 
The parity of the ${{\mathit \Lambda}_{{{c}}}^{+}}$ is defined to be positive (as are the parities of the proton, neutron, and ${{\mathit \Lambda}}$). The quark content is ${{\mathit u}}{{\mathit d}}{{\mathit c}}$. Results of an analysis of ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ decays (JEZABEK 1992) are consistent with $\mathit J = 1/2$. ABLIKIM 2021N determines the ${{\mathit \Lambda}_{{{c}}}^{+}}$ spin to be $\mathit J = 1/2$, from an angular analysis of various 2-body ${{\mathit \Lambda}_{{{c}}}^{+}}$ decays in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Lambda}_{{{c}}}^{+}}{{\overline{\mathit \Lambda}}_{{{c}}}^{-}}$. We have omitted some results that have been superseded by later experiments. The omitted results may be found in earlier editions.
${{\mathit \Lambda}_{{{c}}}^{+}}$ MASS   $2286.46 \pm0.14$ MeV 
${{\mathit \Lambda}_{{{c}}}^{+}}$ MEAN LIFE   $(2.026 \pm0.010) \times 10^{-13}$ s 
$\alpha $ FOR ${{\mathit \Lambda}_{{{c}}}^{+}}$ $\rightarrow$ ${{\overline{\mathit K}}_{{{0}}}^{*}{(1430)}^{0}}{{\mathit p}}$   $0.34 \pm0.14$  
Branching fractions marked with a footnote, e.g. [$\mathit a$], have been corrected for decay modes not observed in the experiments. For example, the submode fraction ${{\mathit \Lambda}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit p}}{{\overline{\mathit K}}^{*}{(892)}^{0}}$ seen in ${{\mathit \Lambda}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ has been multiplied up to include ${{\overline{\mathit K}}^{*}{(892)}^{0}}$ $\rightarrow$ ${{\overline{\mathit K}}^{0}}{{\mathit \pi}^{0}}$ decays.
Constrained Fit information