Observations of Λ0b→ΛK+π−Λb0→ΛK+π− and Λ0b→ΛK+K−Λb0→ΛK+K− decays and searches for other Λ0bΛb0 and Ξ0bΞb0 decays to Λh+h′−Λh+h′− final states

LHCb Collaboration

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    Abstract

    A search is performed for the charmless three-body decays of the Λb0 and Ξb0 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 Λb0 → ΛK+π− and Λb0 → ΛK+K− decays are observed for the first time and their branching fractions and CP asymmetry parameters are measured. Evidence is seen for the Λb0 → Λπ+π− decay and limits are set on the branching fractions of Ξb0 baryon decays to the Λh+h′− final states.
    Original languageEnglish
    Article number81
    JournalThe Journal of High Energy Physics
    Volume2016
    Issue number5
    DOIs
    Publication statusPublished - 13 May 2016

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