Aaij, R;
Adeva, B;
Adinolfi, M;
Affolder, A;
Ajaltouni, Z;
Akar, S;
Albrecht, J;
... Collaboration, L; + view all
(2016)
Observation of the Bs0 → J/ψϕϕ decay.
Journal of High Energy Physics
, 2016
(3)
, Article 40. 10.1007/JHEP03(2016)040.
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Abstract
The B s 0 → 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 B s 0 meson is measured to be 5367.08 ± 0.38 ± 0.15 MeV/c2. The branching fraction ratio ℬ(B s 0 → J/ψϕϕ)/ℬ(B s 0 → 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 B s 0 → J/ψϕK + K − or B s 0 → J/ψK + K − K + K − decays is found.
| Type: | Article |
|---|---|
| Title: | Observation of the Bs0 → J/ψϕϕ decay |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/JHEP03(2016)040 |
| Publisher version: | http://dx.doi.org/10.1007/JHEP03(2016)040 |
| Language: | English |
| Additional information: | Copyright © The Author(s), 2016. All rights reserved. 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. |
| Keywords: | B physics, Branching fraction, Hadron-Hadron scattering, QCD, Spectroscopy |
| UCL classification: | UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1489739 |
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