[en] Using the CLEO II detector at CESR a systematic study of the semileptonic decays of charmed baryons is underway. Previously CLEO has published results on the decays Λ⁺_c → Λ ell ⁺ν_ell, Ξ⁰_c → Ξ^-e⁺ν_e and Ξ⁺_c → Ξ⁰e⁺ν_e. A search for the decay Ω_c → Ω ell ⁺ν_ell will be reported

[en] The first measurement of the Ω⁰_c lifetime is briefly presented. The data were collected in the photoproduction experiment E687 at Fermilab. The measured lifetime is τ=86⁺²⁷_-20(stat.)±28(syst.) fs, one the shortest lifetimes among the singly charmed weakly decaying baryons. (orig.)

[en] Among the ground state charmed hadrons the Ω_c⁰ is the least known particle. It has so far been observed in a few decay channels only and with low statistics. Using a data sample of 1993 from the CERN hyperon beam experiment WA89 the Ω_c⁰ has been found in 7 decay modes which cover final states with Ω^-, Ξ^- and Λ. A measurement of the Ω_c⁰ mass and its lifetime is presented. (author)

[en] The CLEO collaboration has searched for Ω⁰_c production in e⁺e^- annihilations around 10 GeV. The experiment is sensitive to final states containing Ω^-, Λ and Ξ together with kaons and pions. This work is based on ∼ 3 fb^-1 of data collected with the CLEO II detector operating at the Cornell Electron Storage Ring

[en] Preliminary analysis of Charm Baryons from the Fermilab high energy photoproduction experiment E687 is presented. The results include the first observation of Ω_c⁰→Ω^-π⁺

[en] Using the CLEO detector at the Cornell Electron Storage Ring we have observed the Ω_c⁰ (css ground state) in the decay Ω_c⁰→Ω^-e⁺ν_e. We find a signal of 11.4±3.8(stat) events. The probability that we have observed a background fluctuation is 7.6x10^-5. We measure B(Ω_c⁰→Ω^-e⁺ν_e)·σ(e⁺e^-→Ω_c⁰X)=(42.2±14.1(stat)±5.7(syst)) fb and R=(Γ(Ω_c⁰→Ω^-π⁺)/Γ(Ω_c⁰→Ω^-eν_e))=00.41±0.19(stat)±0.04(syst). This is the first statistically significant observation of an individual decay mode of the Ω_c⁰ in e⁺e^- annihilation and the first example of a baryon decaying via β emission, where no quarks from the first generation participate in the reaction

[en] Results on hyperon production in hadronic Z⁰ decays and on the Ω_c lifetime and decay branching ratios are presented. The results on decuplet baryon production in hadronic Z⁰ decays cannot be explained in the framework of the Lund model (JETSET and HERWIG programs). New results in the charm baryon sector are the measurement of the Ω_c lifetime, τ(Ω_c)=55±24 fs, and first estimates of Ω_c decay branching ratios into final states containing an Ω, Ξ^- or Λ. The lifetime of the Ω_c turns out to be somewhat shorter than expected in existing calculations. The branching ratios of the observed multi-body final states cannot be described in the Lund model (PYTHIA program). (orig.)

[en] This report contains papers on the following topics: Recent results on the semi-leptonic decay Decay D⁰ → K^-μ⁺ν_μ; charmed mesons; observation of the Decay Ω_c⁰Σ⁺K^-K^-φ⁺; the physics of charm lifetimes; and photoproduction of charmed hadrons. These papers have been cataloged separately

[en] We report results from a study of the charmed double strange baryons Ω_c⁰ and Ω_c*⁰ at Belle. The Ω_c⁰ is reconstructed using the Ω_c⁰→Ω^-π⁺ decay mode, and its mass is measured to be (2693.6±0.3_-1.5^+1.8) MeV/c². The Ω_c*⁰ baryon is reconstructed in the Ω_c⁰γ mode. The mass difference M_Ωc*⁰-M_Ωc⁰ is measured to be (70.7±0.9_-0.9^+0.1) MeV/c². The analysis is performed using 673 fb^-1 of data on and near the Y(4S) collected with the Belle detector at the KEKB asymmetric-energy e⁺e^- collider

[en] The production of baryons in B meson decays and in the q antiq continuum has been studied with the ARGUS detector at the e⁺e^- storage ring DORIS. In particular, recent results on inclusive and exclusive baryon production in B decays as well as a confirmation of the Ω_c mass is given. Furthermore, a search for an excited Λ_c⁺ state is reported. 4 figs., 10 refs