期刊
EUROPEAN PHYSICAL JOURNAL C
卷 74, 期 10, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-014-3092-z
关键词
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资金
- CERN
- CAPES (Brazil)
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- MPG (Germany)
- SFI (Ireland)
- 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 (USA)
- IN2P3 (France)
- KIT (Germany)
- SURF(The Netherlands)
- PIC (Spain)
- GridPP (United Kingdom)
- EPLANET
- Marie Sklodowska-Curie Actions
- ERC (European Union)
- Conseil general de Haute-Savoie
- Labex ENIGMASS and OCEVU
- Region Auvergne (France)
- RFBR (Russia)
- XuntaGal (Spain)
- GENCAT (Spain)
- Royal Society
- Royal Commission for the Exhibition (United Kingdom)
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205805] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/K001361/1, ST/K001302/1, 1415632, 1299204, ST/K001256/1, ST/M000761/1, ST/K001361/1 ATLAS, ST/L001195/1, LHCb Upgrades, 1096173, ST/M001474/1, ST/I505572/1, ST/L003538/1, ST/G005974/1, ST/H001026/2, 1416165, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/H001026/1, ST/M001431/1, ST/K00137X/1, ST/L006340/1, ST/H001093/2, ST/K001418/1, ST/J005495/1, ST/F007094/1, ST/K00140X/1, ST/K001310/1 LHCb, ST/K001361/1 LHCb, ST/I003576/1, ST/H00100X/1, PP/E000355/1, PP/E003095/1, ST/K004646/1, LHCb, 1208164, ST/K003534/1 GRIDPP, ST/K001361/1 ATLAS Upgrades, ST/K00140X/1 LHCb, ST/K001310/1 ATLAS Upgrades, ST/L003392/1, ST/K00073X/1, GRIDPP, ST/J004332/1, ST/K001310/1, ST/K003534/1, 1225304, ST/J500641/1, ST/L001144/1, ST/H00100X/2, ST/I000097/1, ST/K003410/1, 1364044, 1369397, ST/K001310/1 LHCb Upgrades, ST/H006737/1, ST/K000705/1, ST/K502236/1, ST/L006146/1, 1225314, ST/J004855/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/L003112/1, ST/L00352X/1, ST/H001093/1] Funding Source: researchfish
- STFC [ST/H006737/1, ST/K000705/1, ST/J500641/1, ST/L003538/1, ST/K00140X/1, ST/J005495/1, PP/E003095/1, ST/K001302/1, ST/K003534/1, ST/L00352X/1, ST/L006146/1, ST/H00100X/1, ST/L001144/1, ST/K00137X/1, ST/H001026/2, ST/G005974/1, PP/E000347/1, ST/L003392/1, ST/H00100X/2, ST/M000761/1, ST/H001069/2, ST/F007094/1, ST/I000097/1, ST/K001361/1, ST/L006340/1, ST/L003112/1, LHCb Upgrades, ST/I505572/1, LHCb, ST/J004332/1, ST/K502236/1, ST/M001431/1, ST/H001093/2, ST/K003410/1, ST/K004646/1, ST/K00073X/1, ST/H001026/1, ST/H001093/1, ST/L001195/1, ST/I003576/1, ST/J004855/1, PP/E000355/1] Funding Source: UKRI
A study of chi(b) meson production at LHCb is performed on proton-proton collision data, corresponding to 3.0 fb(-1) of integrated luminosity collected at centre-of-mass energies root s = 7 and 8 TeV. The fraction of gamma(nS) mesons originating from chi(b) decays is measured as a function of the gamma transverse momentum in the rapidity range 2.0 < y(gamma) < 4.5. The radiative transition of the chi(b) (3P) meson to gamma(3S) is observed for the first time. The chi(b)1 (3P) mass is determined to be m chi(b1) (3P) = 10 511.3 +/- 1.7 +/- 2.5MeV/c(2), where the first uncertainty is statistical and the second is systematic.
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