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DC Field | Value | Language |
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dc.contributor.author | Ruiz, Hugo (Ruiz Pérez) | - |
dc.contributor.author | Graciani Díaz, Ricardo | - |
dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | LHCb Collaboration | - |
dc.date.accessioned | 2023-03-20T13:08:53Z | - |
dc.date.available | 2023-03-20T13:08:53Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/2445/195591 | - |
dc.description.abstract | Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the semileptonic decays B0 s → D+ s Xμ−ν and B0 s → D0 K + Xμ−ν are detected. Two struc- tures are observed in the D0 K + mass spectrum at masses consistent with the known D s1(2536)+ and D∗ s2(2573)+ mesons. The measured branching fractions relative to the total B0 s semileptonic rate are B(B0 s → D∗+ s2 Xμ−ν)/B(B0 s → Xμ−ν) = (3.3 ± 1.0 ± 0.4)%, and B(B0 s → D+ s1 Xμ−ν)/B(B0 s → Xμ−ν) = (5.4 ± 1.2 ± 0.5)%, where the first uncertainty is statistical and the second is systematic. This is the first observation of the D∗+ s2 state in B0 s decays; we also measure its mass and width | - |
dc.format.extent | 7 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1016/j.physletb.2011.02.039 | - |
dc.relation.ispartof | Physics Letters B, 2011, vol. 698, num. 1, p. 14-20 | - |
dc.relation.uri | https://doi.org/10.1016/j.physletb.2011.02.039 | - |
dc.rights | cc by-nc-nd (c) CERN, 2011 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.classification | Gran Col·lisionador d'Hadrons | - |
dc.subject.classification | Mesons (Física nuclear) | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.subject.other | Large Hadron Collider (France and Switzerland) | - |
dc.subject.other | Mesons (Nuclear physics) | - |
dc.title | First observation of Bs→Ds2∗+Xμν decays | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 596136 | - |
dc.date.updated | 2023-03-20T13:08:53Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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596136.pdf | 412.5 kB | Adobe PDF | View/Open |
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