Search for the decay Bs0 →ηη
Department
Physics
Document Type
Article
Publication Date
1-1-2022
Abstract
We report results from a search for the decay Bs0→ηη using 121.4 fb-1 of data collected at the (5S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We do not observe any signal and set an upper limit on the branching fraction of 14.3×10-5 at 90% confidence level. This result represents a significant improvement over the previous most stringent limit.
Journal Title
Physical Review D
Journal ISSN
24700010
Volume
105
Issue
1
Digital Object Identifier (DOI)
10.1103/PhysRevD.105.012007
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