Journal article
Observation of the B_s^0 → J/psi phi phi decay
- Abstract:
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Observation of the Bs0 → J/ψϕϕ decay
The Bs0 → J/ψϕϕ decay is observed in pp collision data corresponding to an integrated luminosity of 3 fb−1 recorded by the LHCb detector at centre-of-mass energies of 7 TeV and 8 TeV. This is the first observation of this decay channel, with a statistical significance of 15 standard deviations. The mass of the Bs0 meson is measured to be 5367.08 ± 0.38 ± 0.15 MeV/c2. The branching fraction ratio 𝓑(Bs0 → J/ψϕϕ)/𝓑(Bs0 → J/ψϕ) is measured to be 0.0115 ± 0.0012 −0.0009+0.0005. In both cases, the first uncertainty is statistical and the second is systematic. No evidence for non-resonant Bs0 → J/ψϕK+K− or Bs0 → J/ψK+K−K+K− decays is found.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 475.4KB, Terms of use)
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- Publisher copy:
- 10.1007/JHEP03(2016)040
Authors
- Publisher:
- Springer Verlag
- Journal:
- Journal of High Energy Physics More from this journal
- Volume:
- 2016
- Issue:
- 3
- Publication date:
- 2016-03-07
- Acceptance date:
- 2016-02-23
- DOI:
- EISSN:
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1029-8479
- ISSN:
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1126-6708
- Keywords:
- Pubs id:
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pubs:659131
- UUID:
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uuid:c61aa868-a7af-4da3-8a89-46644276e51b
- Local pid:
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pubs:659131
- Deposit date:
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2016-11-13
Terms of use
- Copyright holder:
- CERN
- Copyright date:
- 2016
- Notes:
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Open Access. This article is distributed under the terms of the Creative Commons
Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in
any medium, provided the original author(s) and source are credited.
- Licence:
- CC Attribution (CC BY)
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