Journal article
Observation of Bc+ → D0K+ decays.
- Abstract:
- Using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb^-1, recorded by the LHCb detector at centre-of-mass energies of 7 and 8TeV, the B+c → D0K+ decay is observed with a statistical significance of 5.1 standard deviations. By normalising to B+ → D0π+ decays, a measurement of the branching fraction multiplied by the production rates for B+c relative to B+ mesons in the LHCb acceptance is obtained, RD0K = fc/fu X B(B+c → D0K+) = (9.3 +2.8/-2:5 ± 0.6) X 10^-7, where the first uncertainty is statistical and the second is systematic. This decay is expected to proceed predominantly through weak annihilation and penguin amplitudes, and is the first B+c decay of this nature to be observed.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 295.4KB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevLett.118.111803
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review Letters More from this journal
- Volume:
- 118
- Issue:
- 11
- Pages:
- 111803
- Publication date:
- 2017-03-01
- Acceptance date:
- 2017-02-17
- DOI:
- ISSN:
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0031-9007 and 1079-7114
- Language:
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English
- Keywords:
- Pubs id:
-
pubs:670893
- UUID:
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uuid:8183b090-4472-46c4-bba2-3c7c2b33bc05
- Local pid:
-
pubs:670893
- Source identifiers:
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670893
- Deposit date:
-
2017-06-11
Terms of use
- Copyright holder:
- CERN
- 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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