Journal article
Observation of charmless baryonic decays B0(s)→p¯ph+h'−
- Abstract:
- Decays of B0 and Bs0 mesons to the charmless baryonic final states pp-h+h′-, where h and h′ each denote a kaon or a pion, are searched for using the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. Four-body charmless baryonic Bs0 decays are observed for the first time. The decays Bs0→pp-K+K-, Bs0→pp-K±πâ", B0→pp-K±πâ" and B0→pp-π+π-A re observed with a significance greater than 5 standard deviations; evidence at 4.1 standard deviations is found for the B0→pp-K+K-decay and an upper limit is set on the branching fraction for Bs0→pp-π+π-. Branching fractions in the kinematic region m(pp-) < 2850 MeV/c2 are measured relative to the B0→J/ψ(→pp-)K∗(892)0 channel.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 493.2KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevD.96.051103
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review D More from this journal
- Volume:
- 96
- Issue:
- 5
- Pages:
- 051103
- Publication date:
- 2017-09-01
- DOI:
- EISSN:
-
2470-0029
- ISSN:
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2470-0010
- Keywords:
- Pubs id:
-
pubs:693528
- UUID:
-
uuid:16c7e1c7-f988-4348-a9eb-cb9e51abd6b0
- Local pid:
-
pubs:693528
- Source identifiers:
-
693528
- Deposit date:
-
2017-11-03
Terms of use
- Copyright holder:
- CERN, for the LHCb Collaboration
- Copyright date:
- 2017
- Notes:
- © 2017 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
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