Journal
PHYSICAL REVIEW LETTERS
Volume 119, Issue 23, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.119.232001
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Funding
- DFG (Germany)
- GVA (Spain)
- NASU (Ukraine)
- Yandex LLC (Russia)
- BMBF (Germany)
- STFC (United Kingdom)
- INFN (Italy)
- NWO (The Netherlands)
- MPG (Germany)
- NSF (USA)
- Labex P2IO (France)
- ENIGMASS (France)
- SER (Switzerland)
- RFBR (Russia)
- OCEVU (France)
- Region Auvergne-Rhone-Alpes (France)
- SNSF (Switzerland)
- MinES (Russia)
- ERC (European Union)
- ANR (France)
- MEN/IFA (Romania)
- EPLANET (European Union)
- Leverhulme Trust (United Kingdom)
- Marie Sklodowska-Curie Actions (European Union)
- MinECo (Spain)
- FASO (Russia)
- FAPERJ (Brazil)
- FINEP (Brazil)
- XuntaGal (Spain)
- CAPES (Brazil)
- CNPq (Brazil)
- Royal Society (United Kingdom)
- CNRS/IN2P3 (France)
- AvH Foundation (Germany)
- English-Speaking Union (United Kingdom)
- MOST (China)
- GENCAT (Spain)
- NSEC (China)
- Herchel Smith Fund (United Kingdom)
- CERN
- MNiSW (Poland)
- NCN (Poland)
- STFC [ST/G005974/1, ST/K003410/1, ST/J004332/1, LHCb Upgrades, 1641747, ST/N000331/1, 1796908, 1707993, ST/H006737/1, LHCb] Funding Source: UKRI
- Direct For Computer & Info Scie & Enginr
- Office of Advanced Cyberinfrastructure (OAC) [1450319] Funding Source: National Science Foundation
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The first observation of the decay of a B0 meson to a purely baryonic final state, B-0 -> p$(p)over-bar-$ , is reported. The proton-proton collision data sample used was collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponds to an integrated luminosity of 3.0 fb(-1). The branching fraction is determined to be B(B-0 -> p$(p)over-bar-$) = (1.25 +/- 0.27 +/- 0.18) x 10(-8), where the first uncertainty is statistical and the second systematic. The decay mode B-0 -> p$(p)over-bar-$ is the rarest decay of the B-0 meson observed to date. The decay B-s(0 )-> p$(p)over-bar-$ is also investigated. No signal is seen and the upper limit B(B-s(0) -> p$(p)over-bar-$) < 1.5 x 10(-8) at 90% confidence level is set on the branching fraction.
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