期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 3, 页码 1-18出版社
SPRINGER
DOI: 10.1007/JHEP03(2016)040
关键词
B physics; Branching fraction; Hadron-Hadron scattering; QCD; Spectroscopy
资金
- CAPES (Brazil)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- MPG (Germany)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The Netherlands)
- MNiSW (Poland)
- NCN (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- FANO (Russia)
- MinECo (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NASU (Ukraine)
- STFC (United Kingdom)
- NSF (U.S.A.)
- AvH Foundation (Germany)
- EPLANET
- Marie Sklodowska-Curie Actions
- ERC (European Union)
- Conseil General de Haute-Savoie
- Labex ENIGMASS
- OCEVU
- Region Auvergne (France)
- RFBR
- Yandex LLC (Russia)
- GVA
- XuntaGal
- GENCAT (Spain)
- Royal Society
- Royal Commission for the Exhibition of 1851
- Leverhulme Trust (United Kingdom)
- STFC [ST/L003392/1, ST/H006737/1, ST/L003341/1, ST/N001370/1, ST/N001389/1, ST/K00140X/1, ST/H001069/2, ST/M004058/1, ST/N000234/1, ST/N000242/1, LHCb Upgrades, LHCb, ST/J004332/1, ST/K003410/1, ST/K004646/1, ST/L003538/1] Funding Source: UKRI
- Science and Technology Facilities Council [1369397, 1364044, ST/K003410/1, ST/J004332/1, GRIDPP, ST/N001370/1, 1208164, LHCb, ST/K004646/1, ST/N000242/1, ST/K00140X/1, ST/K001418/1, ST/H001069/2, ST/M004058/1, 1514623, 1416165, 1565116, ST/H006737/1, 1565032, 1415632, LHCb Upgrades, 1511824, 1096173, ST/M001474/1, ST/L003538/1, ST/N000250/1] Funding Source: researchfish
The B (s) (0) -> aEuro parts per thousand J/psi I center dot I center dot 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/c(2). The branching fraction ratio anot sign(B (s) (0) -> aEuro parts per thousand J/psi I center dot I center dot)/anot sign(B (s) (0) -> aEuro parts per thousand J/psi I center dot) is measured to be 0.0115 +/- A 0.0012 (-aEuro parts per thousand 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) -> aEuro parts per thousand J/psi I center dot K (+) K (-) or B (s) (0) -> aEuro parts per thousand J/psi K (+) K (-) K (+) K (-) decays is found.
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