Observation of the singly Cabibbo-suppressed decay
Journal Article
·
· Physical Review. D.
The singly Cabibbo-suppressed decay is observed for the first time with a statistical significance of by using of collision data collected at center-of-mass energies between 4.600 and 4.699 GeV with the BESIII detector at BEPCII. The absolute branching fraction of is measured to be in a model-independent approach. This is the first observation of a Cabibbo-suppressed decay involving in the final state. The ratio of branching fractions between and the Cabibbo-favored decay is observed to be , where with the Cabibbo mixing angle. Published by the American Physical Society 2024
- Research Organization:
- Indiana Univ., Bloomington, IN (United States); Univ. of Minnesota, Minneapolis, MN (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC)
- Grant/Contract Number:
- FG02-05ER41374; SC0012069
- OSTI ID:
- 2342164
- Journal Information:
- Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 7 Vol. 109; ISSN PRVDAQ; ISSN 2470-0010
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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