Abstract
A search is performed for the charmless three-body decays of the Λ 0 b and Ξ 0 b baryons to the final states Λh + h′−, where h (′) = π or K. The analysis is based on a data sample, corresponding to an integrated luminosity of 3 fb−1 of pp collisions, collected by the LHCb experiment. The Λ 0 b → ΛK +π− and Λ 0 b → ΛK + K − decays are observed for the first time and their branching fractions and CP asymmetry parameters are measured. Evidence is seen for the Λ 0 b → Λπ+π− decay and limits are set on the branching fractions of Ξ 0 b baryon decays to the Λh + h′− final states.
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The LHCb collaboration., Aaij, R., Abellán Beteta, C. et al. Observations of Λ 0 b → ΛK +π− and Λ 0 b → ΛK + K − decays and searches for other Λ 0 b and Ξ 0 b decays to Λh + h′− final states. J. High Energ. Phys. 2016, 81 (2016). https://doi.org/10.1007/JHEP05(2016)081
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DOI: https://doi.org/10.1007/JHEP05(2016)081