Search for the Λ b 0 → Λη ′ and Λ b 0 → Λη decays with the LHCb detector
Author(s)
The LHCb Collaboration; Ilten, Philip J; Williams, Michael
DownloadPublished version (636.4Kb)
Publisher with Creative Commons License
Publisher with Creative Commons License
Creative Commons Attribution
Terms of use
Metadata
Show full item recordAbstract
© 2015, The Author(s). A search is performed for the as yet unobserved baryonic Λb0 → Λη ′ and Λb0 → Λη decays with 3 fb−1 of proton-proton collision data recorded by the LHCb experiment. The B0 → Ks0η ′ decay is used as a normalisation channel. No significant signal is observed for the Λb0 → Λη ′ decay. An upper limit is found on the branching fraction of ℬΛb0→Λη′ < 3.1 × 10−6 at 90% confidence level. Evidence is seen for the presence of the Λb0 → Λη decay at the level of 3σ significance, with a branching fraction (Formula presented.).
Date issued
2015Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
Aaij, R., et al. "Search for the Lambda(0)(B) -> Lambda Eta ' and Lambda(0)(B) -> Lambda Eta Decays with the Lhcb Detector." Journal of High Energy Physics 9 (2015).
Version: Final published version