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Title: Search for the η c 2 ( 1 D ) in e + e γ η c 2 ( 1 D ) at s near 10.6 GeV at Belle

Journal Article · · Physical Review D
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For the first time we search for the $$η_{c2}(1D)$$ in $e^+e^-$ → $$γη_{c2}(1D)$$ at $$\sqrt{s}$$ = 10.52, 10.58, and 10.867 GeV with data samples of 89.5 fb-1, 711 fb-1, and 121.4 fb-1, respectively, accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant $$η_{c2}(1D)$$ signal is observed in the mass range between 3.8 and 3.88 GeV/c2. The upper limit at 90% confidence level on the product of the Born cross section for $e^+e^-$ → $$γη_{c2}(1D)$$ and branching fraction for $$η_{c2}(1D)$$ → $$γh_{c}(1P)$$ is determined to be σ($e^+e^-$ → $$γη_{c2}(1D)$$)B($$γη_{c2}(1D)$$ → $$γh_{c}(1P)$$) < 4.9 fb at √s near 10.6 GeV.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); KEK - High Energy Accelerator Research Organization
Contributing Organization:
Belle Collaboration
Grant/Contract Number:
SC0012704
OSTI ID:
1810429
Alternate ID(s):
OSTI ID: 1813952
Report Number(s):
BNL-222016-2021-JAAM; PRVDAQ; 012012
Journal Information:
Physical Review D, Journal Name: Physical Review D Vol. 104 Journal Issue: 1; ISSN 2470-0010
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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