Recent Charmonium Results from BES (Talk Presented at DPF99)

1999/03/17 by F. A. Harris, Harris, F. A.
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ex

paper · pdf · doi:10.48550/arxiv.hep-ex/9903036

7 pages, 7 figures Corrected Table III

openalex publication_date 1999/03/17 · arxiv created 1999/07/09 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Recent results obtained from the BES psi(2S) data are summarized, including the measurement of the branching ratio of the J/psi to leptons, B(J/psi -> l⁺ l^-) = 5.87 +/- 0.04 +/- 0.09, many psi(2S) and chi_c branching ratios, information on the rho-pi puzzle, and measurements of the mass of the chi_c0, m(chi_c0) = 3414.1 +/- 0.6 +/- 0.8 MeV, and the eta_c, m(eta_c) = 2975.8 +/- 3.9 +/- 1.2 MeV.

Related

• Recent Charmonium Results from BES
• Recent Charmonium Physics from BES
• Recent BES results on charmonium decays
• Recent BES results on charmonium decays
• Recent Results on Charmonium from BESIII