Study of B→X(3872)K, with X(3872)→J/ψπ+π−
We present measurements of the decays B + → X ( 3872 ) K + and B 0 → X ( 3872 ) K 0 with X ( 3872 ) → J / ψ π + π − . The data sample used, collected with the BABAR detector at the PEP-II e + e − asymmetric-energy storage ring, corresponds to 455 × 10 6 B ¯¯¯ B pairs. Branching fraction measurements...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2008 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/131522 |
| Acceso en línea: | https://hdl.handle.net/2445/131522 |
| Access Level: | acceso abierto |
| Palabra clave: | Física de partícules Experiments Particle physics |
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Study of B→X(3872)K, with X(3872)→J/ψπ+π−Garra Ticó, JordiGraugés Pous, EugeniBABAR CollaborationFísica de partículesExperimentsParticle physicsExperimentsWe present measurements of the decays B + → X ( 3872 ) K + and B 0 → X ( 3872 ) K 0 with X ( 3872 ) → J / ψ π + π − . The data sample used, collected with the BABAR detector at the PEP-II e + e − asymmetric-energy storage ring, corresponds to 455 × 10 6 B ¯¯¯ B pairs. Branching fraction measurements of B ( B + → X ( 3872 ) K + ) × B ( X ( 3872 ) → J / ψ π + π − ) = ( 8.4 ± 1.5 ± 0.7 ) × 10 − 6 and B ( B 0 → X ( 3872 ) K 0 ) × B ( X ( 3872 ) → J / ψ π + π − ) = ( 3.5 ± 1.9 ± 0.4 ) × 10 − 6 are obtained. We set an upper limit on the natural width of the X ( 3872 ) of Γ < 3.3 MeV / c 2 at the 90% confidence level.American Physical Society2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/131522Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevD.77.111101Physical Review D, 2008, vol. 77, num. 11, p. 111101https://doi.org/10.1103/PhysRevD.77.111101(c) American Physical Society, 2008info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1315222026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
Study of B→X(3872)K, with X(3872)→J/ψπ+π− |
| title |
Study of B→X(3872)K, with X(3872)→J/ψπ+π− |
| spellingShingle |
Study of B→X(3872)K, with X(3872)→J/ψπ+π− Garra Ticó, Jordi Física de partícules Experiments Particle physics Experiments |
| title_short |
Study of B→X(3872)K, with X(3872)→J/ψπ+π− |
| title_full |
Study of B→X(3872)K, with X(3872)→J/ψπ+π− |
| title_fullStr |
Study of B→X(3872)K, with X(3872)→J/ψπ+π− |
| title_full_unstemmed |
Study of B→X(3872)K, with X(3872)→J/ψπ+π− |
| title_sort |
Study of B→X(3872)K, with X(3872)→J/ψπ+π− |
| dc.creator.none.fl_str_mv |
Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
| author |
Garra Ticó, Jordi |
| author_facet |
Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
| author_role |
author |
| author2 |
Graugés Pous, Eugeni BABAR Collaboration |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Física de partícules Experiments Particle physics Experiments |
| topic |
Física de partícules Experiments Particle physics Experiments |
| description |
We present measurements of the decays B + → X ( 3872 ) K + and B 0 → X ( 3872 ) K 0 with X ( 3872 ) → J / ψ π + π − . The data sample used, collected with the BABAR detector at the PEP-II e + e − asymmetric-energy storage ring, corresponds to 455 × 10 6 B ¯¯¯ B pairs. Branching fraction measurements of B ( B + → X ( 3872 ) K + ) × B ( X ( 3872 ) → J / ψ π + π − ) = ( 8.4 ± 1.5 ± 0.7 ) × 10 − 6 and B ( B 0 → X ( 3872 ) K 0 ) × B ( X ( 3872 ) → J / ψ π + π − ) = ( 3.5 ± 1.9 ± 0.4 ) × 10 − 6 are obtained. We set an upper limit on the natural width of the X ( 3872 ) of Γ < 3.3 MeV / c 2 at the 90% confidence level. |
| publishDate |
2008 |
| dc.date.none.fl_str_mv |
2008 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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https://hdl.handle.net/2445/131522 |
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https://hdl.handle.net/2445/131522 |
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Inglés |
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Inglés |
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Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.77.111101 Physical Review D, 2008, vol. 77, num. 11, p. 111101 https://doi.org/10.1103/PhysRevD.77.111101 |
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(c) American Physical Society, 2008 info:eu-repo/semantics/openAccess |
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(c) American Physical Society, 2008 |
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openAccess |
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application/pdf |
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American Physical Society |
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American Physical Society |
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Articles publicats en revistes (Física Quàntica i Astrofísica) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
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Universidad de Barcelona |
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Dipòsit Digital de la UB |
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Dipòsit Digital de la UB |
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