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http://hdl.handle.net/2445/185689
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DC Field | Value | Language |
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dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Gascon, D. | - |
dc.contributor.author | Graciani Díaz, Ricardo | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | Marin Benito, Carla | - |
dc.contributor.author | Picatoste, E. | - |
dc.contributor.author | Rives, V. | - |
dc.contributor.author | Ruiz, Hugo | - |
dc.contributor.author | LHCb Collaboration | - |
dc.date.accessioned | 2022-05-17T14:12:47Z | - |
dc.date.available | 2022-05-17T14:12:47Z | - |
dc.date.issued | 2015-04-09 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/2445/185689 | - |
dc.description.abstract | A search for the rare decays B0 s → π +π −μ+μ− and B0 → π +π −μ+μ− is performed in a data set corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb detector in proton- proton collisions at centre-of-mass energies of 7 and 8 TeV. Decay candidates with pion pairs that have invariant mass in the range 0.5-1.3 GeV/c2 and with muon pairs that do not originate from a resonance are considered. The first observation of the decay B0 s → π +π −μ+μ− and the first evidence of the decay B0 → π +π −μ+μ− are obtained and the branching fractions, restricted to the dipion-mass range considered, are measured to be B(B0 s → π +π −μ+μ−) = (8.6 ± 1.5 (stat) ± 0.7 (syst) ± 0.7 (norm)) × 10−8 and B(B0 → π +π −μ+μ−) = (2.11 ± 0.51 (stat) ± 0.15 (syst) ± 0.16 (norm)) × 10−8, where the third uncertainty is due to the branching fraction of the decay B0 → J /ψ(→ μ+μ−)K ∗(892)0(→ K +π −), used as a normalisation | - |
dc.format.extent | 10 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.2015.02.010 | - |
dc.relation.ispartof | Physics Letters B, 2015, vol. 743, p. 46-55 | - |
dc.relation.uri | https://doi.org/10.1016/j.physletb.2015.02.010 | - |
dc.rights | cc-by (c) Garrido Beltrán, Lluis et al., 2015 | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Hadrons | - |
dc.subject.classification | Gran Col·lisionador d'Hadrons | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Hadrons | - |
dc.subject.other | Large Hadron Collider (France and Switzerland) | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Study of the rare View the MathML sourceBs0 and B0B0 decays into the π+π−μ+μ−π+π−μ+μ− final state | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 653685 | - |
dc.date.updated | 2022-05-17T14:12:47Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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