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http://hdl.handle.net/2445/133080
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DC Field | Value | Language |
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dc.contributor.author | Badalov, Alexey | - |
dc.contributor.author | Calvo Gómez, Míriam | - |
dc.contributor.author | Camboni, Alessandro | - |
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 | Ruiz, Hugo (Ruiz Pérez) | - |
dc.contributor.author | Vilasis-Cardona, Xavier | - |
dc.contributor.author | LHCb Collaboration | - |
dc.date.accessioned | 2019-05-13T12:26:19Z | - |
dc.date.available | 2019-05-13T12:26:19Z | - |
dc.date.issued | 2014-06-04 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/133080 | - |
dc.description.abstract | Resonant structures in B 0 → ψ ′ π − K + decays are analyzed by performing a four-dimensional fit of the decay amplitude, using p p collision data corresponding to 3 fb − 1 collected with the LHCb detector. The data cannot be described with K + π − resonances alone, which is confirmed with a model-independent approach. A highly significant Z ( 4430 ) − → ψ ′ π − component is required, thus confirming the existence of this state. The observed evolution of the Z ( 4430 ) − amplitude with the ψ ′ π − mass establishes the resonant nature of this particle. The mass and width measurements are substantially improved. The spin parity is determined unambiguously to be 1 + . | - |
dc.format.extent | 9 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.112.222002 | - |
dc.relation.ispartof | Physical Review Letters, 2014, vol. 112, num. 22, p. 222002 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevLett.112.222002 | - |
dc.rights | cc by (c) CERN; LHCb Collaboration, 2014 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/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.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Observation of the Resonant Character of the Z(4430)− State | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 645760 | - |
dc.date.updated | 2019-05-13T12:26:19Z | - |
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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File | Description | Size | Format | |
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645760.pdf | 519.09 kB | Adobe PDF | View/Open |
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