Search for the glueball in and decays
Journal Article
·
· Physical Review D
We report the first search for the JPC= 0-- glueball in Yð1SÞ and Y=ð2SÞ decays with data samples of (102 ± 2) × 106 and (158 ± 4) × 106 events, respectively, collected with the Belle detector. No significant signals are observed in any of the proposed production modes, and the 90% credibility level upper limits on their branching fractions in Y(1S) andY(2S) decays are obtained. The inclusive branching fractions of the Y(1S) and Y(2S) decays into final states with a χc1 are measured to be B(Y(1S) → χc1 þ anything = (1.90± 0.43(stat) ± 0.14(syst)) × 10-4 with an improved precision over prior measurements and → χc1 + anything) = (2.24 ±0.44(stat) 0.20(syst)) × 10-4 for the first time.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- Contributing Organization:
- Belle Collaboration
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1347846
- Report Number(s):
- PNNL-SA-123786; PRVDAQ; KA2201020
- Journal Information:
- Physical Review D, Vol. 95, Issue 1; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
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