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Observation of Λb0 → ψ(2S)pK− and Λb0→ J/ψ π+ π− pK- decays and a measurement of the Λb0 baryon mass

Abstract:

The decays Λb0→ ψ(2S)pK− and Λb0→ J/ψπ+π−pK−are observed in a data sample corresponding to an integrated luminosity of 3 fb^−1, collected in proton-proton collisions at 7 and 8 TeV centre-of-mass energies by the LHCb detector. The ψ(2S) mesons are reconstructed through the decay modes ψ(2S) → μ+μ−and ψ(2S) → J/ψπ+π−. The branching fractions relative to that of Λb0→ J/ψpK−are measured to be ℬ(Λb0→ψ(2S)pK−)/ℬ(Λb0→J/ψpK−) = (20.70±0.76±0.46±0.37) × 10^−2, ℬ(Λb0→ψ(2S)pK−)/ℬ(Λb0→J/ψpK−) = (20.86±0...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/JHEP05(2016)132

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Particle Physics
Role:
Author
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior More from this funder
Brazilian National Council for Scientific and Technological Development More from this funder
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro More from this funder
Brazilian Funding Authority for Studies and Projects More from this funder
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Publisher:
Springer Publisher's website
Journal:
Journal of High Energy Physics Journal website
Volume:
2016
Issue:
5
Pages:
132
Publication date:
2016-05-23
Acceptance date:
2016-05-09
DOI:
ISSN:
1126-6708 and 1029-8479
Source identifiers:
627713
Keywords:
Pubs id:
pubs:627713
UUID:
uuid:473873e3-3b06-4a7b-9e60-db7b94bdf6f7
Local pid:
pubs:627713
Deposit date:
2016-11-13

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