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Observations of Λb0 → ΛK+π− and Λb0 → ΛK+K− decays and searches for other Λb0 and Ξb0 decays to Λh+h′− final states

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LHCb collaboration (Including: Back, J. J., Blake, Thomas, Crocombe, Andrew, Gershon, T. J., Kreps, Michal, Langenbruch, Christoph, Latham, Thomas, Loh, David, Mathad, Abhijit , O’Hanlon, Daniel, Poluektov, Anton, Wallace, Charlotte and Wicht, Jean). (2016) Observations of Λb0 → ΛK+π− and Λb0 → ΛK+K− decays and searches for other Λb0 and Ξb0 decays to Λh+h′− final states. Journal of High Energy Physics, 2016 (5). p. 81. 81. doi:10.1007/jhep05(2016)081

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Official URL: https://doi.org/10.1007/jhep05(2016)081

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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.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
SWORD Depositor: Library Publications Router
Journal or Publication Title: Journal of High Energy Physics
Publisher: Springer Berlin Heidelberg
ISSN: 1029-8479
Official Date: 13 May 2016
Dates:
DateEvent
13 May 2016Published
28 April 2016Accepted
Volume: 2016
Number: 5
Page Range: p. 81
Article Number: 81
DOI: 10.1007/jhep05(2016)081
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access

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