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http://hdl.handle.net/2445/119399
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DC Field | Value | Language |
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dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Gascón Fora, David | - |
dc.contributor.author | Graciani Díaz, Ricardo | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | Marin Benito, Carla | - |
dc.contributor.author | Picatoste Olloqui, Eduardo | - |
dc.contributor.author | Rives Molina, Vicente José | - |
dc.contributor.author | Badalov, Alexey | - |
dc.contributor.author | LHCb Collaboration | - |
dc.date.accessioned | 2018-01-30T10:46:27Z | - |
dc.date.available | 2018-01-30T10:46:27Z | - |
dc.date.issued | 2016-05-23 | - |
dc.identifier.issn | 1126-6708 | - |
dc.identifier.uri | http://hdl.handle.net/2445/119399 | - |
dc.description.abstract | The decays Λ b 0 → ψ(2S)pK− and Λ b 0 → 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 Λ b 0 → J/ψpK− are measured to be B(Λ0b→ψ(2S)pK−)B(Λ0b→J/ψpK−)=(20.70±0.76±0.46±0.37)×10−2, B(Λb0→ψ(2S)pK−)B(Λb0→J/ψpK−)=(20.70±0.76±0.46±0.37)×10−2, where the first uncertainties are statistical, the second are systematic and the third is related to the knowledge of J/ψ and ψ(2S) branching fractions. The mass of the Λ b 0 baryon is measured to be M(Λ0b)=5619.65±0.17±0.17 MeV/c2, M(Λb0)=5619.65±0.17±0.17 MeV/c2, where the uncertainties are statistical and systematic. | - |
dc.format.extent | 22 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Springer Verlag | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1007/JHEP05(2016)132 | - |
dc.relation.ispartof | Journal of High Energy Physics, 2016, vol. 2016, num. 132 | - |
dc.relation.uri | https://doi.org/10.1007/JHEP05(2016)132 | - |
dc.rights | cc-by (c) LHCb Collaboration et al., 2016 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Interaccions d'hadrons | - |
dc.subject.classification | Espectroscòpia | - |
dc.subject.other | Hadron interactions | - |
dc.subject.other | Spectrum analysis | - |
dc.title | Observation of Λb0→ ψ(2S)pK−and Λb0→ J/ψπ+π−pK−decays and a measurement of the Λb0baryon mass | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 669919 | - |
dc.date.updated | 2018-01-30T10:46:27Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
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