期刊
EUROPEAN PHYSICAL JOURNAL C
卷 73, 期 6, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-013-2462-2
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资金
- CERN
- CAPES, (Brazil)
- CNPq, (Brazil)
- FAPERJ, (Brazil)
- FINEP (Brazil)
- NSFC (China)
- CNRS/IN2P3
- Region Auvergne (France)
- BMBF, (Germany)
- DFG, (Germany)
- HGF (Germany)
- MPG (Germany)
- SFI (Ireland)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The Netherlands)
- SCSR (Poland)
- ANCS/IFA (Romania)
- MinES, (Russia)
- Rosatom, (Russia)
- RFBR (Russia)
- NRC Kurchatov Institute (Russia)
- MinECo, (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NAS Ukraine (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- ERC
- IN2P3 (France)
- KIT (Germany)
- BMBF (Germany)
- SURF (The Netherlands)
- PIC (Spain)
- GridPP (United Kingdom)
- STFC [LHCb, ST/I505572/1, LHCb Upgrades, ST/L003112/1, ST/L003392/1, PP/E000355/1, ST/F008015/1, ST/H001085/1, ST/L001195/1, ST/H001093/1, ST/H006737/1, ST/H001085/2, ST/K000705/1, ST/K00140X/1, ST/L00352X/1, ST/H00100X/1, ST/L001144/1, ST/H00100X/2, ST/J004332/1, ST/K000748/1, ST/M001431/1, ST/H001093/2, ST/K003410/1, ST/H00081X/1, ST/K004646/1, ST/K00073X/1, ST/K00137X/1, ST/G005974/1, ST/J005568/1, ST/K001604/1, ST/H00081X/2, PP/E000347/1, ST/K001361/1, ST/F007094/1, ST/H001069/2, ST/M000761/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/K001604/1 T2K, ST/K001310/1 ATLAS, ST/H00081X/1, ST/L001195/1, ST/K001604/1 LHCb, ST/H00081X/2, ST/K001361/1 ATLAS, ST/K001604/1 SuperNEMO, ST/K001604/1 CMS Upgrade, ST/K001361/1, ST/H001093/1, ST/L003112/1, PP/E000347/1, ST/K000705/1, ST/H006737/1, ST/K001310/1 LHCb Upgrades, ST/K001604/1 DMUK, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/H00100X/2, ST/L001144/1, ST/K001604/1 MICE/UKNF, ST/K001310/1, ST/K00073X/1, ST/K001310/1 ATLAS Upgrades, ST/K004646/1, PP/E000355/1, ST/H00100X/1, ST/K001310/1 LHCb, ST/K001604/1, ST/H001093/2] Funding Source: researchfish
The branching fractions of the decay B+ -> p (p) over barK(+) for different intermediate states are measured using data, corresponding to an integrated luminosity of 1.0 fb(-1), collected by the LHCb experiment. The total branching fraction, its charmless component (M-p (p) over bar _ < 2.85 GeV/c(2)) and the branching fractions via the resonant c<(c)over bar> c states eta c(1S) and psi(2S) relative to the decay via a J/psi intermediate state are B(B+ -> p (p) over bar K+)(total)/B(B+ -> J/psi K+ -> p (p) over barK(+)) = 4.91 +/- 0.19 (stat) +/- 0.14 (syst), B(B+ -> p (p) over bar K+) M-P (p) over bar<2.85 GeV/(2)/B(B+ -> J/psi K+ -> p<(p)over bar>K+) = 2.02 +/- 0.10 (stat) +/- 0.08 (syst), B(B+ -> eta(c) (1S)K+ -> p<(pover bar>K+)/B(B+ -> J/psi K+ -> p (p) over barK(+)) =0.578 +/- 0.035 (stat) +/- 0.027 (syst), B(B+ -> psi(2S)K+ -> p (p) over barK(+) )/B(B+ -> J/psi K+ -> p (p) over barK(+)) = 0.080 +/- 0.012 (stat) +/- 0.009 (syst). Upper limits on the B+ branching fractions into the eta(c)(2S) meson and into the charmonium-like states X(3872) and X(3915) are also obtained.
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