Observation of the B0 s → J/ψ K0 SK±π ∓ decay
Decays of the form B0 (s) → J/ψ K0 S h +h (0)− (h (0) = K, π) are searched for in proton-proton collision data corresponding to an integrated luminosity of 1.0 fb−1 recorded with the LHCb detector. The first observation of the B0 s → J/ψ K0 SK±π ∓ decay is reported, with significance in excess of 10...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2014 |
| País: | España |
| Recursos: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:20.500.14342/3482 |
| Acesso em linha: | http://hdl.handle.net/20.500.14342/3482 https://doi.org/10.1007/JHEP07(2014)140 |
| Access Level: | acceso abierto |
| Palavra-chave: | Gran col·lisionador d'hadrons (França i Suïssa) Interaccions d'hadrons 539 |
| Resumo: | Decays of the form B0 (s) → J/ψ K0 S h +h (0)− (h (0) = K, π) are searched for in proton-proton collision data corresponding to an integrated luminosity of 1.0 fb−1 recorded with the LHCb detector. The first observation of the B0 s → J/ψ K0 SK±π ∓ decay is reported, with significance in excess of 10 standard deviations. The B0 → J/ψ K0 SK+K− decay is also observed for the first time. The branching fraction of B0 → J/ψ K0 S π +π − is determined, to significantly better precision than previous measurements, using B0 → J/ψ K0 S as a normalisation channel. Branching fractions and upper limits of the other B0 (s) → J/ψ K0 S h +h (0)− modes are determined relative to that of the B0 → J/ψ K0 S π +π − decay. |
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