Charmed baryon decay asymmetry in e⁺e^- annihilation

We propose to measure the decay asymmetry parameters in the hadronic weak decays of singly charmed baryons, such as Λ_c⁺ → Λπ+, Σ0π⁺, pK-bar₀, Ξ_c⁰ → Ξ^-π⁺ and Ω_c⁰ → Ω^-π⁺. The joint angular formulae for these processes are presented, and are used to extract the asymmetry parameters in e⁺e^- annihilation data. Base on the current Λ_c⁺ data set collected at BESIII, we estimate the experimental sensitivities to measure the parameters α_Λπ+ for Λ_c⁺ → Λπ⁺, α_Σ+π⁰ for Λ_c⁺ → Σ⁺π⁰ and αΣ⁰π⁺ for Λ_c⁺ → Σ⁰π⁺. (authors)