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Observations of Λ b 0 → ΛK +π− and Λ b 0 → ΛK + K − decays and searches for other Λ b 0 and Ξ b 0 decays to Λh + h′− final states

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.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/JHEP05(2016)081

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author


Publisher:
Springer Verlag
Journal:
Journal of High Energy Physics More from this journal
Volume:
2016
Issue:
5
Publication date:
2016-05-13
Acceptance date:
2016-04-28
DOI:
ISSN:
1126-6708 and 1029-8479


Keywords:
Pubs id:
pubs:609688
UUID:
uuid:7441a7f5-fe56-4335-b957-51f69d6e6b60
Local pid:
pubs:609688
Source identifiers:
609688
Deposit date:
2016-11-02

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