Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/132719
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBadalov, Alexey-
dc.contributor.authorCalvo Gómez, Míriam-
dc.contributor.authorCamboni, Alessandro-
dc.contributor.authorCoquereau, Samuel-
dc.contributor.authorFernandez, G.-
dc.contributor.authorGarrido Beltrán, Lluís-
dc.contributor.authorGascón Fora, David-
dc.contributor.authorGraciani Díaz, Ricardo-
dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorMarin Benito, Carla-
dc.contributor.authorPicatoste Olloqui, Eduardo-
dc.contributor.authorRives Molina, Vicente José-
dc.contributor.authorSánchez Gonzalo, David-
dc.contributor.authorVilasis-Cardona, Xavier-
dc.contributor.authorLHCb Collaboration-
dc.date.accessioned2019-05-06T09:47:52Z-
dc.date.available2019-05-06T09:47:52Z-
dc.date.issued2017-09-08-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/2445/132719-
dc.description.abstractWe report on a measurement of the flavor-specific Bs0 lifetime and of the Ds- lifetime using proton-proton collisions at center-of-mass energies of 7 and 8 TeV, collected by the LHCb experiment and corresponding to 3.0 fb-1 of integrated luminosity. Approximately 407 000 Bs0→Ds(*)-μ+νμ decays are partially reconstructed in the K+K-π-μ+ final state. The Bs0 and Ds- natural widths are determined using, as a reference, kinematically similar B0→D(*)-μ+νμ decays reconstructed in the same final state. The resulting differences between widths of Bs0 and B0 mesons and of Ds- and D- mesons are ΔΓ(B )=-0.0115 ±0.0053 (stat ) ±0.0041 (syst ) ps-1 and ΔΓ(D )=1.0131 ±0.0117 (stat ) ±0.0065 (syst ) ps-1, respectively. Combined with the known B0 and D- lifetimes, these yield the flavor-specific Bs0 lifetime, τBs 0 fs =1.547 ±0.013 (stat ) ±0.010 (syst ) ±0.004 (τB) ps and the Ds- lifetime, τDs-=0.5064 ±0.0030 (stat ) ±0.0017 (syst ) ±0.0017 (τD) ps . The last uncertainties originate from the limited knowledge of the B0 and D- lifetimes. The results improve upon current determinations.-
dc.format.extent10 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Physical Society-
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.119.101801-
dc.relation.ispartofPhysical Review Letters, 2017, vol. 119, num. 10, p. 101801-
dc.relation.urihttps://doi.org/10.1103/PhysRevLett.119.101801-
dc.rightscc by (c) CERN; LHCb Collaboration, 2017-
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/-
dc.subject.classificationFísica de partícules-
dc.subject.classificationExperiments-
dc.subject.otherParticle physics-
dc.subject.otherExperiments-
dc.titleMeasurement of Bs0 and Ds- meson lifetimes-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec678016-
dc.date.updated2019-05-06T09:47:52Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Electrònica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

Files in This Item:
File Description SizeFormat 
678016.pdf316.46 kBAdobe PDFView/Open


This item is licensed under a Creative Commons License Creative Commons