Energy Scan of the ( , 2) Cross Sections and Evidence for Decays into Charged Bottomoniumlike States
Journal Article
·
· Physical Review Letters
With data collected with the Belle detector at the KEKB asymmetric-energy collider, we measure the energy dependence of the ( , 2) cross sections from thresholds up to 11.02 GeV. We find clear and peaks with little or no continuum contribution. We study the resonant substructure of the transitions and find evidence that they proceed entirely via the intermediate isovector states and . The relative fraction of these states is loosely constrained by the current data: The hypothesis that only is produced is excluded at the level of 3.3 standard deviations, while the hypothesis that only is produced is not excluded at a significant state.
- Research Organization:
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
- Contributing Organization:
- Belle Collaboration
- Grant/Contract Number:
- SC0009973
- OSTI ID:
- 1594377
- Alternate ID(s):
- OSTI ID: 1327069
- Journal Information:
- Physical Review Letters, Vol. 117, Issue 14; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 7 works
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