2005/07/01 by B. Aubert, BABAR Collaboration, Aubert, B. +1
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Superconducting Materials and Applications #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0507011
16 pages, 2 figures
arxiv created 2005/07/01 · openalex publication_date 2005/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Production and decay of Ωc0 baryons is studied with ∼230 fb-1 of data recorded with the BABAR detector at the PEP-II e+e- asymmetric-energy storage ring at SLAC. The Ωc0 is reconstructed through its decays into Ω-π+, Ω-π+π+π-, and Ξ-K-π+π+ final states. The invariant mass spectra are presented and the signal yields are extracted. Ratios of branching fractions are measured relative to the Ω-π+ mode \frac\cal B(Ξ-K-π+π+)\cal B(Ω-π+) &= 0.31 ± 0.15(stat.) ± 0.04(syst.), \frac\cal B(Ω-π+π+π-)\cal B(Ω-π+) &< 0.30 (90%CL). The momentum spectrum (not corrected for efficiency) of Ωc0 baryons is extracted from decays into Ω-π+, establishing the first observation of Ωc0 production from B decays.