Measurements of the branching fractions of the -wave charmonium spin-singlet state
Journal Article
·
· Physical Review. D.
Based on events, we investigate four hadronic decay modes of the -wave charmonium spin-singlet state ( or ) via the process at BESIII. The decay is observed with a significance of after taking into account systematic uncertainties. Evidences for and are found with significances of and , respectively, after considering the systematic uncertainties. The branching fractions of these decays are measured to be , , and , where the first uncertainties are statistical and the second are systematic. No significant signal of is found, and the upper limit of its decay branching fraction is determined to be at the 90% confidence level. Published by the American Physical Society 2024
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- FG02-05ER41374
- OSTI ID:
- 2438399
- Journal Information:
- Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 3 Vol. 110; ISSN PRVDAQ; ISSN 2470-0010
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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