We present a comprehensive study of anti-triplet charmed baryon decays into octet baryons and pseudoscalar mesons using the SU (3) F flavor symmetry framework. By decomposing the flavor structure, all decay amplitudes are parametrized with a minimal set of irreducible amplitudes, and the Körner-Pati-Woo theorem further reduces the number of independent parameters from the original 35 to 19 under exact symmetry when small terms proportional to λb = V₂₁^*Vₔ₁ are neglected. The independent number becomes 27 with leading SU (3) F breaking effects. A global fit to 51 experimental measurements yields a χ²/d. o. f. of 2. 36 and provides precise values for the decay amplitudes. Notable discrepancies are observed in the fitted branching fractions of Ξc⁰ Ξ^- π^+ and Ξc^+ Ξ^- π^+ π^+, which exceed current measurements by more than 2σ. Incorporating final-state rescattering effects to recover the main effects of terms proportional to λb, we predict enhanced CP violation, with A₂ reaching up to 10^-3 in golden channels such as Ξc⁰ p K^- and Ξc⁰ Σ^+ π^-. Our analysis also finds that the branching ratio for Ξc^+ Λπ^+ is enhanced to (9. 7 1. 2) 10^-4 due to significant cancellations.
Yang et al. (Mon,) studied this question.