# name
Search for the Λ b 0  → Λη ′ and Λ b 0  → Λη decays with the LHCb detector

# metadata.dc.description.abstract[].value
: 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 .

# metadata.dc.relation.ispartof[].value
Journal of High Energy Physics, 2015, vol. 2021, p. 1-21

# metadata.dc.source[].value
Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.subject.other[].value
Large Hadron Collider (France and Switzerland)

# metadata.dc.title[].value
Search for the Λ b 0  → Λη ′ and Λ b 0  → Λη decays with the LHCb detector