Determination of the X(3872) Meson Quantum Numbers
| dc.contributor.author | Abellan Beteta, Carlos | |
| dc.contributor.author | Calvo Gómez, Míriam | |
| dc.contributor.author | Camboni, Alessandro | |
| dc.contributor.author | Comerma Montells, Albert | |
| dc.contributor.author | Oyanguren Campos, Arantza de | |
| dc.contributor.author | Garrido Beltrán, Lluís | |
| dc.contributor.author | Graciani Díaz, Ricardo | |
| dc.contributor.author | Graugés Pous, Eugeni | |
| dc.contributor.author | López Asamar, Elias | |
| dc.contributor.author | Pérez-Calero Yzquierdo, Antonio | |
| dc.contributor.author | Picatoste Olloqui, Eduardo | |
| dc.contributor.author | Potterat, Cédric | |
| dc.contributor.author | Rives Molina, Vicente José | |
| dc.contributor.author | Ruiz, Hugo (Ruiz Pérez) | |
| dc.contributor.author | Ruiz Valls, Pablo | |
| dc.contributor.author | Vázquez Gómez, Ricard | |
| dc.contributor.author | Vilasis-Cardona, Xavier | |
| dc.contributor.author | LHCb Collaboration | |
| dc.date.accessioned | 2019-05-17T10:26:17Z | |
| dc.date.available | 2019-05-17T10:26:17Z | |
| dc.date.issued | 2013-05-29 | |
| dc.date.updated | 2019-05-17T10:26:17Z | |
| dc.description.abstract | The quantum numbers of the X ( 3872 ) meson are determined to be J P C = 1 ++ based on angular correlations in B + → X ( 3872 ) K + decays, where X ( 3872 ) → π + π − J / ψ and J / ψ → μ + μ − . The data correspond to 1.0 fb − 1 of p p collisions collected by the LHCb detector. The only alternative assignment allowed by previous measurements J P C = 2 − + is rejected with a confidence level equivalent to more than 8 Gaussian standard deviations using a likelihood-ratio test in the full angular phase space. This result favors exotic explanations of the X ( 3872 ) state. | |
| dc.format.extent | 8 p. | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.idgrec | 628988 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.uri | https://hdl.handle.net/2445/133347 | |
| dc.language.iso | eng | |
| dc.publisher | American Physical Society | |
| dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.110.222001 | |
| dc.relation.ispartof | Physical Review Letters, 2013, vol. 110, num. 22, p. 222001 | |
| dc.relation.uri | https://doi.org/10.1103/PhysRevLett.110.222001 | |
| dc.rights | cc by (c) CERN; LHCb Collaboration, 2013 | |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| 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 | Determination of the X(3872) Meson Quantum Numbers | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion |
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