Study of charmed baryons at Belle

We report measurements of the branching fractions of the decays Λ⁺_c → Σ⁺π⁻π⁺, Λ⁺_c → Σ⁰π⁺π⁰ and Λ⁺_c → Σ⁺π⁰π⁰ relative to the reference channel Λ⁺_c → pK⁻π⁺ [1]. The charmed-strange baryon Ξ_c(2930)⁰, decaying to K⁻Λ⁺_c , is observed for the first time in B⁻ → K⁻Λ⁺_c Λ⁻_c decays. We also measure B(B⁻ → K⁻Λ⁺_c Λ⁻_c ) with improved precision, and search for the charmonium-like state Y(4660) and its spin partner, Y_η, in the Λ⁺_c Λ⁻_c invariant mass spectrum [2]. Decays of the |⁰_c charmed baryon into hadronic final states were studied[3]. We present the results of a study of excited |_c charmed baryons in the decay mode Ξ⁺_c K⁻ [4].