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dc.contributor.authorLHCb Collaboration
dc.contributor.authorAdeva Andany, Bernardo
dc.contributor.authorBoente García, Óscar
dc.contributor.authorBorsato, Martino
dc.contributor.authorChobanova, Veronika
dc.contributor.authorCid Vidal, Xabier
dc.contributor.authorDosil Suárez, Álvaro
dc.contributor.authorFernández Prieto, Antonio
dc.contributor.authorGallas Torreira, Abraham Antonio
dc.contributor.authorGarcía Plana, Beatriz
dc.contributor.authorLucio Martínez, Miriam
dc.contributor.authorMartínez Santos, Diego
dc.contributor.authorPlo Casasus, Máximo
dc.contributor.authorPrisciandaro, James J.
dc.contributor.authorRamos Pernas, Miguel
dc.contributor.authorRomero Vidal, Antonio
dc.contributor.authorSaborido Silva, Juan José
dc.contributor.authorSanmartín Sedes, Brais
dc.contributor.authorSantamarina Ríos, Cibrán
dc.contributor.authorVázquez Regueiro, Pablo
dc.contributor.authorVieites Díaz, María
dc.date.accessioned2020-05-14T09:22:01Z
dc.date.available2020-05-14T09:22:01Z
dc.date.issued2018
dc.identifier.citationLHCb Collaboration et al. (2018). Observation of the decay Λ0b→Λ+cppπ−. Physics Letters B, 784, 101-111
dc.identifier.issn0370-2693
dc.identifier.urihttp://hdl.handle.net/10347/22297
dc.description.abstractThe decay Λ0b→Λ+cppπ−is observed using ppcollision data collected with the LHCb detector at centre-of-mass energies of √s=7and 8Tev, corresponding to an integrated luminosity of 3fb−1. The ratio of branching fractions between Λ0b→Λ+cppπ−and Λ0b→Λ+cπ−decays is measured to be B(Λ0 b →Λ + c ppπ− ) B(Λ0 b →Λ + c π−) = 0.0540±0.0023±0.0032. Two resonant structures are observed in the Λ+cπ−mass spectrum of the Λ0b→Λ+cppπ−decays, corresponding to the Σc(2455)0and Σ∗c(2520)0states. The ratios of branching fractions with respect to the decay Λ0b→Λ+cppπ−are B(Λ0 b →Σ0 c pp)×B(Σ0 c →Λ + c π− ) B(Λ0 b →Λ + c ppπ−) = 0.089±0.015±0.006, B(Λ0 b →Σ ∗0 c pp)×B(Σ ∗0 c →Λ + c π− ) B(Λ0 b →Λ + c ppπ−) = 0.119±0.020±0.014. In all of the above results, the first uncertainty is statistical and the second is systematic. The phase space is also examined for the presence of dibaryon resonances. No evidence for such resonances is found.
dc.language.isoeng
dc.publisherElsevier
dc.rights© 2018 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleObservation of the decay Λ0b→Λ+cppπ−
dc.typeinfo:eu-repo/semantics/article
dc.identifier.DOI10.1016/j.physletb.2018.07.033
dc.relation.publisherversionhttps://doi.org/10.1016/j.physletb.2018.07.033
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.e-issn1873-2445
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Física de Partículas
dc.contributor.affiliationUniversidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
dc.description.peerreviewedSI


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© 2018 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
Except where otherwise noted, this item's license is described as  © 2018 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.





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