Measurement of the branching fraction ratio B(B+c → ψ(2S)π+)/B(B+c → J/ψπ+)
Using pp collision data collected by LHCb at center-of-mass energies √s=7 TeV and 8 TeV, corresponding to an integrated luminosity of 3 fb−1, the ratio of the branching fraction of the B+c→ψ(2S)π+ decay relative to that of the B+c→J/ψπ+ decay is measured to be 0.268±0.032(stat)±0.007(syst)±0.006(B...
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2015 |
| País: | España |
| Recursos: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositório: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:20.500.14342/3225 |
| Acesso em linha: | http://hdl.handle.net/20.500.14342/3225 https://doi.org/10.1103/PhysRevD.92.072007 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) Col·lisions (Física nuclear) 539 |
| Resumo: | Using pp collision data collected by LHCb at center-of-mass energies √s=7 TeV and 8 TeV, corresponding to an integrated luminosity of 3 fb−1, the ratio of the branching fraction of the B+c→ψ(2S)π+ decay relative to that of the B+c→J/ψπ+ decay is measured to be 0.268±0.032(stat)±0.007(syst)±0.006(BF). The first uncertainty is statistical, the second is systematic, and the third is due to the uncertainties on the branching fractions of the J/ψ→μ+μ− and ψ(2S)→μ+μ− decays. This measurement is consistent with the previous LHCb result, and the statistical uncertainty is halved. |
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