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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   JSON PDGID: B104

${{\mathit \Sigma}_{{{c}}}{(2455)}}$ $I(J^P)$ = $1(1/2^{+})$

The angular distribution of ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit \Sigma}_{{{c}}}{(2455)}^{0}}{{\overline{\mathit p}}}$ favors $\mathit J = 1/2$ (as the quark model predicts). $\mathit J = 3/2$ is excluded by more than four standard deviations; see AUBERT 2008BN.

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▸  exp ${{\mathit \Sigma}_{{{c}}}{(2455)}}$ MASSES

${{\mathit \Sigma}_{{{c}}}{(2455)}^{++}}$ MASS $2453.97$ $\pm0.14$ MeV

${{\mathit \Sigma}_{{{c}}}{(2455)}^{+}}$ MASS $2452.65^{+0.22}_{-0.16}$ MeV

${{\mathit \Sigma}_{{{c}}}{(2455)}^{0}}$ MASS $2453.75$ $\pm0.14$ MeV

▸  exp ${{\mathit \Sigma}_{{{c}}}{(2455)}}&$ MASS DIFFERENCES

${\mathit m}_{{{\mathit \Sigma}_{{{c}}}{(2455)}^{++}}}-{\mathit m}_{{{\mathit \Lambda}_{{{c}}}^{+}}}$ $167.510$ $\pm0.017$ MeV

${\mathit m}_{{{\mathit \Sigma}_{{{c}}}{(2455)}^{+}}}-{\mathit m}_{{{\mathit \Lambda}_{{{c}}}^{+}}}$ $166.19^{+0.15}_{-0.08}$ MeV

${\mathit m}_{{{\mathit \Sigma}_{{{c}}}{(2455)}^{0}}}-{\mathit m}_{{{\mathit \Lambda}_{{{c}}}^{+}}}$ $167.290$ $\pm0.017$ MeV

▸  exp ${{\mathit \Sigma}_{{{c}}}{(2455)}}$ MASS DIFFERENCES

${\mathit m}_{{{\mathit \Sigma}_{{{c}}}{(2455)}^{++}}}-{\mathit m}_{{{\mathit \Sigma}_{{{c}}}{(2455)}^{0}}}$ $0.220$ $\pm0.013$ MeV

${\mathit m}_{{{\mathit \Sigma}_{{{c}}}{(2455)}^{+}}}-{\mathit m}_{{{\mathit \Sigma}_{{{c}}}{(2455)}^{0}}}$ $-1.10^{+0.16}_{-0.08}$ MeV

▸  exp ${{\mathit \Sigma}_{{{c}}}{(2455)}}$ WIDTHS

${{\mathit \Sigma}_{{{c}}}{(2455)}^{++}}$ WIDTH $1.89^{+0.09}_{-0.18}$ MeV (S = 1.1)

${{\mathit \Sigma}_{{{c}}}{(2455)}^{+}}$ WIDTH $2.3$ $\pm0.4$ MeV

${{\mathit \Sigma}_{{{c}}}{(2455)}^{0}}$ WIDTH $1.83^{+0.11}_{-0.19}$ MeV (S = 1.2)

${{\mathit \Sigma}_{{{c}}}{(2455)}}$ DECAY MODES
${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit \pi}}$ is the only strong decay allowed to a ${{\mathit \Sigma}_{{{c}}}}$ having this mass.
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit \pi}}$ $\sim100$ $\%$ 94