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Search for the e + e η b ( 1 S ) ω and e + e χ b 0 ( 1 P ) ω processes at s = 10.745 GeV

Journal Article · · Physical Review. D.
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We search for the e + e η b ( 1 S ) ω and e + e χ b 0 ( 1 P ) ω processes at a center-of-mass energy of 10.745 GeV, which is close to the peak of the ϒ ( 10753 ) state. We use data collected by the Belle II experiment during a special run, corresponding to an integrated luminosity of 9.8 fb 1 . We reconstruct ω π + π π 0 decays and use the ω meson’s recoil mass to search for the signals. We do not find evidence for either process, and set upper limits on the corresponding Born-level cross sections of 2.5 pb and 7.8 pb, respectively, at the 90% confidence level. The χ b 0 ( 1 P ) ω limit is the result of a combination of this analysis and a previous search using full reconstruction.

Published by the American Physical Society 2024
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC06-76RL01830; AC06-76RL01830
OSTI ID:
2340235
Alternate ID(s):
OSTI ID: 2579395
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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