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- W4300548918 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 B0 → K s 0 η ′ 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 $$ mathrm{mathcal{B}}left({Lambda}_{mathrm{b}}^0to Lambda upeta^{prime}right) $$ < 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 $$ mathrm{mathcal{B}}left({Lambda}_{mathrm{b}}^0to Lambda upeta right) = left(9.{3}_{-5.3}^{+7.3}right)times 1{0}^{-6} $$ ." @default.
- W4300548918 created "2022-10-03" @default.
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