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research article
Search for XYZ states in Upsilon(1S) inclusive decays
2016
The branching fractions of the Upsilon(1S) inclusive decays into final states with a J/psi or psi(2S) are measured with improved precision to be B Upsilon(1S) -> J/psi + anything = (5.25 +/- 0.13(stat) +/- 0.25(syst) x 10(-4) and B Upsilon(1S) -> psi(2S) + anything = (1.23 +/- 0.17(stat) +/- 0.11(syst)) x 10(-4). The first search for Upsilon(1S) decays into XYZ states that decay into a J/psi or a psi(2S) plus one or two charged tracks yields no significant signals for XYZ states in any of the examined decay modes, and upper limits on their production rates in Upsilon(1S) inclusive decays are determined.
Type
research article
Web of Science ID
WOS:000378204500001
Authors
Shen, C. P.
•
Yuan, C. Z.
•
Ban, Y.
•
Aihara, H.
•
Asner, D. M.
•
Badhrees, I.
•
Bakich, A. M.
•
Barberio, E.
•
Behera, P.
•
Bhardwaj, V.
Corporate authors
Belle Collaboration
Publication date
2016
Publisher
Published in
Volume
93
Issue
11
Article Number
112013
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
July 19, 2016
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