Charmed baryon decays at BESIII

BESIII has accumulated 4.5 fb${}^{-1}$ of $e^{+}{e}^{-}$ collision data in the 4.6 to 4.7 GeV energy range, corresponding to the world’s largest sample of ${\mathrm{\Lambda }}_c^{+}{\bar{\mathrm{\Lambda }}}_c^{-}$ pairs. This paper summarizes recent BESIII results on charmed-baryon decays, including the observation of the rare semi-leptonic decay ${\mathrm{\Lambda }}_c^{+}\to n{e}^{+}{\nu }_e$ using a Graph Neural Network, the first measurement of the decay asymmetry in the pure $W$-exchange decay ${\mathrm{\Lambda }}_c^{+}\to {\mathrm{\Xi }}^0{K}^{+}$, and branching fraction measurements of the inclusive decays ${\mathrm{\Lambda }}_c^{+}\to X{e}^{+}{\nu }_e$ and ${\bar{\mathrm{\Lambda }}}_c^{-}\to \bar{n}X$. We also report partial wave analyses of ${\mathrm{\Lambda }}_c^{+}\to \mathrm{\Lambda }{\pi }^{+}{\pi }^0$ and ${\mathrm{\Lambda }}_c^{+}\to \mathrm{\Lambda }{\pi }^{+}\eta$, measurements of Cabibbo-suppressed decays such as ${\mathrm{\Lambda }}_c^{+}\to p{\pi }^0$, and studies of $K_S^0-K_L^0$ asymmetries in ${\mathrm{\Lambda }}_c^{+}$ decays.