Charm Baryon Decays at BESIII

Abstract

Based on 4.5 fb\({}^{-1}\) \(e^{+}e^{-}\) data taken at the center-of-mass energies \(\sqrt{s}=4.6{-}4.7\) GeV with the BESIII detector, we improve measurement the absolute branching fraction and report the form factor measurement in \(\Lambda_{c}^{+}\to\Lambda e^{+}\nu_{e}\), and observed the \(\Lambda_{c}^{+}\to pK^{-}e^{+}\nu_{e}\). The inclusive decay \(\Lambda_{c}\to Xe^{+}\nu_{e}\) is also improved measurement. Moreover, we report the first amplitude analysis of \(\Lambda_{c}\to\Lambda\pi^{+}\pi^{0}\) and the observe the Cabibbo-suppressed decay \(\Lambda_{c}^{+}\to n\pi^{+}\).