Abstract
A search is performed for the as yet unobserved baryonic Λ b 0 → Λη ′ and Λ b 0 → Λη decays with 3 fb −1 of proton-proton collision data recorded by the LHCb experiment. The B 0 → K s 0η ′ decay is used as a normalisation channel. No significant signal is observed for the Λ b 0 → 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 Λ b 0 → Λη decay at the level of 3σ significance, with a branching fraction (Formula presented.).
Original language | English |
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Article number | 6 |
Journal | Journal of High Energy Physics |
Volume | 2015 |
Issue number | 9 |
DOIs | |
Publication status | Published - 13 Sept 2015 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2015, The Author(s).
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics