Journal
PHYSICAL REVIEW D
Volume 96, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.96.112005
Keywords
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Funding
- CERN
- CAPES (Brazil)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- MOST (China)
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- MPG (Germany)
- INFN (Italy)
- NWO (Netherlands)
- MNiSW (Poland)
- NCN (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- FASO (Russia)
- MinECo (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NASU (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- AvH Foundation (Germany)
- EPLANET (European Union)
- Marie Sklodowska-Curie Actions (European Union)
- ERC (European Union)
- Conseil General de Haute-Savoie (France)
- Labex ENIGMASS (France)
- OCEVU, Region Auvergne (France)
- RFBR (Russia)
- Yandex LLC (Russia)
- GVA (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- Herchel Smith Fund (United Kingdom)
- Royal Society (United Kingdom)
- Royal Commission for the Exhibition of 1851 (United Kingdom)
- Leverhulme Trust (United Kingdom)
- STFC [1707993, 1796908, ST/N000331/1, LHCb Upgrades, LHCb, ST/J004332/1, ST/K003410/1, ST/G005974/1, ST/H006737/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J004332/1, GRIDPP, LHCb, 1416165, ST/N000250/1, LHCb Upgrades, ST/K003410/1, ST/H006737/1, 1397914, 1565116] Funding Source: researchfish
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A measurement of the shape of the differential decay rate and the associated Isgur-Wise function for the decay Lambda(0)(b) ->+ Lambda(+)(c) mu(-) is reported, using data corresponding to 3 fb(-1) collected with the LHCb detector in proton-proton collisions. The Lambda(+)(c) mu(-)(nu) over bar mu (+anything) final states are reconstructed through the detection of a muon and Lambda(+)(c) baryon decaying into pK(-)pi(+), and the decay Lambda(0)(b) -> Lambda(+)(c)pi(+)pi(-)mu(-)(nu) over bar mu are used to determine contributions from Lambda(0)(b) -> Lambda(c)*(+)mu(-)(nu) over bar mu decays. The measured dependence of the differential decay rate upon the squared four-momentum transfer between the heavy baryons, q(2), is compared with expectations from heavy-quark effective theory and from unquenched lattice QCD predictions.
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