Search for the decay
Journal Article
·
· Physical Review. D.
Using a data sample corresponding to an integrated luminosity of collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for the decay in the radiative production . No significant signal is observed, and the ratio for the branching fraction of to is measured as at 90% confidence level. An upper limit on the product of the cross section and the branching fraction at each center-of-mass energy is also given. These measurements favor the nonconventional charmonium nature of the state.
Published by the American Physical Society 2024- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- FG02-05ER41374
- OSTI ID:
- 2335517
- Alternate ID(s):
- OSTI ID: 2579489
- 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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