Journal article
First observation of the decay B(s)^0 → K(S)^0K∗(892)^0 at LHCb
- Abstract:
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First observation of the decay Bs0 → KS0K∗(892)0 at LHCb
A search for B(s)0 → KS0K∗(892)0 decays is performed using pp collision data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector at a centre-of-mass energy of 7 TeV. The Bs0 → KS0K∗(892)0 decay is observed for the first time, with a significance of 7.1 standard deviations. The branching fraction is measured to be
𝓑(Bs0 → K̅0K∗(892)0) + 𝓑(Bs0 → K0K̅∗(892)0)=(16.4 ± 3.4 ± 2.3) × 10−6,
where the first uncertainty is statistical and the second is systematic. No evidence is found for the decay B0 → KS0K∗(892)0 and an upper limit is set on the branching fraction, 𝓑(B0 → K̅0K∗(892)0) + 𝓑(B0 → K0K̅∗(892)0) < 0.96 × 10−6, at 90 % confidence level. All results are consistent with Standard Model predictions.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 720.6KB, Terms of use)
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- Publisher copy:
- 10.1007/JHEP01(2016)012
Authors
- Publisher:
- Springer Verlag
- Journal:
- Journal of High Energy Physics More from this journal
- Volume:
- 2016
- Issue:
- 12
- Publication date:
- 2016-01-04
- Acceptance date:
- 2015-12-15
- DOI:
- EISSN:
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1029-8479
- ISSN:
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1126-6708
- Keywords:
- Pubs id:
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pubs:598301
- UUID:
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uuid:3d82f2e0-8c6d-44d4-a78b-b50b4c5222f7
- Local pid:
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pubs:598301
- Deposit date:
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2016-11-13
- ARK identifier:
Terms of use
- Copyright holder:
- Aaij et al
- Copyright date:
- 2016
- Notes:
- © The Author(s) 2016. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
- Licence:
- CC Attribution (CC BY)
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