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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

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author R. Aaij et al. LHCb Collaboration,
Project Rare decays of B-mesons and the physics of the early Universe
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Original article (peer-reviewed)

Journal JHEP
Volume (Issue) 1605
Page(s) 081
Title of proceedings JHEP
DOI 10.1007/jhep05(2016)081

Open Access

URL https://inspirehep.net/record/1425547
Type of Open Access Website

Abstract

A search is performed for the charmless three-body decays of the Λ0bb0 and Ξ0bb0 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−1−1 of pp collisions, collected by the LHCb experiment. The Λ0bb0  → ΛK++π−− and Λ0bb0  → ΛK++ K−− decays are observed for the first time and their branching fractions and CP asymmetry parameters are measured. Evidence is seen for the Λ0bb0  → Λπ++π−− decay and limits are set on the branching fractions of Ξ0bb0 baryon decays to the Λh++ h′−− final states.
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