Journal
PHYSICAL REVIEW LETTERS
Volume 119, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.119.041802
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- CERN
- CAPES (Brazil)
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- MOST (People's Republic of China)
- NSFC (People's Republic of China)
- CNRS/IN2P3 (France)
- BMBF (Germany)
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- INFN (Italy)
- NWO (The Netherlands)
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- MEN/IFA (Romania)
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- NASU (Ukraine)
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- EPLANET (European Union)
- Marie Sklodowska-Curie Actions (European Union)
- ERC (European Union)
- Conseil General de Haute-Savoie (France)
- Labex ENIGMASS (France)
- OCEVU (France)
- RFBR (Russia)
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- Herchel Smith Fund (United Kingdom)
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- Leverhulme Trust (United Kingdom)
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- Region Auvergne (France)
- Yandex LLC (Russia)
- XuntaGal (Spain)
- GENCAT (Spain)
- Royal Commission for the Exhibition of 1851 (United Kingdom)
- STFC [ST/G005974/1, 1707993, ST/H006737/1, ST/N000331/1, 1708182, ST/N000234/1, 1641747, LHCb Upgrades, LHCb, ST/J004332/1, ST/M003140/1, ST/L001152/1, ST/K003410/1] Funding Source: UKRI
- Science and Technology Facilities Council [LHCb Upgrades, ST/N000250/1, ST/G005974/1, 1416165, 1514623, ST/N000234/1, 1641747, LHCb, GRIDPP, 1707993, 1708182, ST/J004332/1, ST/M003140/1, 1565116, ST/H006737/1, 1369397, ST/N000331/1, ST/K003410/1, ST/L001152/1] Funding Source: researchfish
- Office of Advanced Cyberinfrastructure (OAC)
- Direct For Computer & Info Scie & Enginr [1450319] Funding Source: National Science Foundation
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We report the first observation of a baryonic B-s(0) decay, B-s(0). p (Lambda) over barK(-), using proton-proton collision data recorded by the LHCb experiment at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3.0 fb(-1). The branching fraction is measured to be B(B-s(0) -> p (Lambda) over bar K-)+ B(B-s(0) -> p (Lambda) over bar K+) [5.46 +/- 0.61 +/- 0.57 +/- 0.50(B) +/- 0.32(f(s)/(d))] x 10(-6), where the first uncertainty is statistical and the second systematic, the third uncertainty accounts for the experimental uncertainty on the branching fraction of the B-0 -> p (Lambda) over bar pi(-) decay used for normalization, and the fourth uncertainty relates to the knowledge of the ratio of b-quark hadronization probabilities f(s)/f(d).
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