Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP10(2012)037
Keywords
Hadron-Hadron Scattering
Categories
Funding
- CAPES, (Brazil)
- CNPq, (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- CERN
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF, (Germany)
- DFG, (Germany)
- HGF (Germany)
- MPG (Germany)
- SFI (Ireland)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The Netherlands)
- SCSR (Poland)
- ANCS (Romania)
- MinES of Russia
- Rosatom (Russia)
- MICINN, (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NAS Ukraine (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- ERC under FP7
- Region Auvergne
- STFC [PP/E000355/1, ST/L001225/1, ST/F008015/1, ST/L001195/1, ST/H001026/1, ST/H006737/1, ST/H001085/2, ST/K000616/1, ST/J004820/1, ST/K000705/1, ST/H001069/2, ST/I002839/1, ST/K001361/1, LHCb Upgrades, ST/I505572/1, LHCb, ST/M001431/1, ST/J005614/1, ST/H00081X/1, ST/K00073X/1, ST/H001026/2, ST/G005974/1, ST/H00081X/2, ST/H00100X/2, ST/L001144/1, ST/H00100X/1, ST/F007094/1, ST/G502412/1, PP/E002722/1] Funding Source: UKRI
- Science and Technology Facilities Council [PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/H001093/1, ST/K001361/1, ST/K001604/1 CMS Upgrade, ST/K001256/1, PP/E002722/1, ST/K001604/1 SuperNEMO, ST/K001361/1 ATLAS, ST/H00081X/2, ST/K001604/1 LHCb, ST/L001195/1, LHCb Upgrades, ST/L001225/1, ST/H00081X/1, ST/M001474/1, ST/I505572/1, ST/G005974/1, ST/H001026/2, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/H001026/1, ST/K000616/1, ST/M001431/1, ST/I002839/1, ST/K001604/1 T2K, ST/H001093/2, ST/K001418/1, ST/K000705/1, ST/J004820/1, ST/H006737/1, ST/K001310/1 LHCb Upgrades, ST/K001604/1 DMUK, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/J005614/1, ST/H00100X/2, ST/L001144/1, ST/K001604/1 MICE/UKNF, ST/K001310/1, GRIDPP, ST/K00073X/1, ST/K001310/1 ATLAS Upgrades, ST/K001361/1 ATLAS Upgrades, 1208164, LHCb, PP/E000355/1, ST/H00100X/1, ST/G502412/1, ST/K001361/1 LHCb, ST/K001310/1 LHCb, ST/K00140X/1, ST/H001085/2, ST/F007094/1, ST/K001604/1, ST/F008015/1] Funding Source: researchfish
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Based on data corresponding to an integrated luminosity of 0.37 fb(-1) collected by the LHCb experiment in 2011, the following ratios of branching fractions are measured: B(B-0 ->pi(+)pi(-))/B(B-0 -> K+pi(-))=0.262 +/- 0.009 +/- 0.017, (f(s)/f(d)).B(B-s(0)-> K+K-)/B(B-0 -> K+pi(-))=0.316 +/- 0.009 +/- 0.019, (f(s)/f(d)).B(B-s(0)->pi K-+(-))/B(B-0 -> K+pi(-))=0.074 +/- 0.006 +/- 0.006, (f(d)/f(s)).B(B-0 -> K+K-)/B(B-s(0)-> K+K-)=0.018(-0.007)(+0.008)+/- 0.009, (f(s)/f(d)).B(B-s(0)->pi(+)pi(-))/B(B-0 ->pi(+)pi(-))=0.050(-0.009)(+0.011)+/- 0.004, B(Lambda(0)(b)-> p pi(-))/B(Lambda(0)(b)-> pK(-))=0.86 +/- 0.08 +/- 0.05, where the first uncertainties are statistical and the second systematic. Using the current world average of B(B-0 -> K+pi(-)) and the ratio of the strange to light neutral B meson production f(s)/f(d) measured by LHCb, we obtain: B(B-0 ->pi(+)pi(-))=(5.08 +/- 0.17 +/- 0.37)x10(-6), B(B-s(0)-> K+K-)=(23.0 +/- 0.7 +/- 2.3)x10(-6), B(B-s(0)->pi K-+(-))=(5.4 +/- 0.4 +/- 0.6)x10(-6), B(B-0 -> K+K-)=(0.11(-0.04)(+0.05)+/- 0.06)x10(-6), B(B-s(0)->pi(+)pi(-))=(0.95(-0.17)(+0.21)+/- 0.13)x10(-6). The measurements of B(B-s(0)-> K+K-), B(B-s(0)->pi K-+(-)) and B(B-0 -> K+K-) are the most precise to date. The decay mode B-s(0)->pi(+)pi(-) is observed for the first time with a significance of more than 5 sigma.
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