2005/06/23 by G. Rong, D. H. Zhang, Rong, G. +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0506051
6 pages, 2 figures
arxiv created 2005/06/23 · openalex publication_date 2005/06/23 · arxiv updated 2009/12/01 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28
The branching fractions for ψ(3770) → D0 D0, D+D-,D D and ψ(3770) → \rm non-D D are determined based on the cross sections for ψ(3770) and D D production measured by BES Collaboration. From its recent publications we determine the branching fractions for ψ(3770) → D0 D0, D+D- and ψ(3770) → D D to be (52.2± 4.8± 5.5)%, (37.0 ± 5.0 ± 4.3)% and (89.1 ± 6.9 ± 9.2)%, respectively. The latter one implies the branching fraction for ψ(3770) → \rm non-D D to be (10.9 ± 6.9 ± 9.2)%, corresponding the inclusive \rm non-D D partial width Γ(ψ(3770) → \rm non-D D) = (2.8 ± 1.8 ± 2.4) MeV. Meanwhile we determine the observed cross section for non-D D event production from ψ(3770) decays to be σ\rm obs(ψ(3770)→ non-D D) = (0.72 ± 0.46 ± 0.62) nb.