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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/185732
Search for the Λ b 0 → Λη ′ and Λ b 0 → Λη decays with the LHCb detector
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: A search is performed for the as yet unobserved baryonic Λ0 b → Λη 0 and Λ 0 b → Λη decays with 3 fb−1 of proton-proton collision data recorded by the LHCb experiment. The B0 → K0 sη 0 decay is used as a normalisation channel. No significant signal is observed for the Λ0 b → Λη 0 decay. An upper limit is found on the branching fraction of B(Λ0 b → Λη 0 ) < 3.1 × 10−6 at 90% confidence level. Evidence is seen for the presence of the Λ0 b → Λη decay at the level of 3σ significance, with a branching fraction B(Λ0 b → Λη) = (9.3 +7.3 −5.3 ) × 10−6 .
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BALADOV, A., et al. Search for the Λ b 0 → Λη ′ and Λ b 0 → Λη decays with the LHCb detector. Journal of High Energy Physics. 2015. Vol. 2021, num. 1-21. ISSN 1126-6708. [consulted: 11 of October of 2026]. Available at: https://hdl.handle.net/2445/185732