Observation of B0s→χc1φ decay and study of B0→χ c1,2K∗0 decays
The first observation of the decay B0s→χc1φ and a study of B0→χc1,2K∗0 decays are presented. The analysis is performed using a dataset, corresponding to an integrated luminosity of 1.0 fb−1, collected bythe LHCb experiment in pp collisions at a centre-of-mass energy of 7 TeV. The following ratios of...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | España |
| Institución: | Universitat Ramon Llull (URL) |
| Repositorio: | DAU Arxiu Digital de la Universitat Ramon Llull |
| OAI Identifier: | oai:dau.url.edu:20.500.14342/3475 |
| Acceso en línea: | http://hdl.handle.net/20.500.14342/3475 https://doi.org/10.1016/j.nuclphysb.2013.06.005 |
| Access Level: | acceso abierto |
| Palabra clave: | Gran col·lisionador d'hadrons (França i Suïssa) Interaccions d'hadrons Col·lisions (Física nuclear) Partícules (Física nuclear) Protons 539 |
| Sumario: | The first observation of the decay B0s→χc1φ and a study of B0→χc1,2K∗0 decays are presented. The analysis is performed using a dataset, corresponding to an integrated luminosity of 1.0 fb−1, collected bythe LHCb experiment in pp collisions at a centre-of-mass energy of 7 TeV. The following ratios of branching fractions are measured: B(B0s→χc1φ)B(B0s→J/ψφ)=(18.9±1.8(stat)±1.3 (syst)±0.8(B))×10−2,B(B0→χc1K∗0)B(B0→J/ψK∗0)=(19.8±1.1(stat)±1.2 (syst)±0.9(B))×10−2,B(B0→χc2K∗0)B(B0→χc1K∗0)=(17.1±5.0(stat)±1.7 (syst)±1.1(B))×10−2, where the third uncertainty is due to the limited knowledge of the branching fractions of χc→J/ψγ modes. |
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