Charmed baryons in a quark model with hyperfine interactions

Abstract

We employ a quark model based on quantum chromodynamics and tested against noncharmed baryons to predict masses and decay rates of ground-state and excited baryons containing one charmed quark. Among other conclusions, the calculations indicate that the orbitally excited ${\ensuremath{\Lambda}}_{c}$ $\frac{1}{{2}^{\ensuremath{-}}}$ analogous to the $\ensuremath{\Lambda}(1405)$ is stable against strong decays.