Study of Bc+ decays to the K+K-π+ final state and evidence for the decay Bc+ →χc0π+
A study of Bc+→K+K-π+ decays is performed for the first time using data corresponding to an integrated luminosity of 3.0 fb-1 collected by the LHCb experiment in pp collisions at center-of-mass energies of 7 and 8 TeV. Evidence for the decay Bc+→χc0(→K+K-)π+ is reported with a significance of 4.0 st...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | 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:20.500.14342/5866 |
| Acceso en línea: | http://hdl.handle.net/20.500.14342/5866 http://dx.doi.org/10.1103/PhysRevD.94.091102 |
| Access Level: | acceso abierto |
| Palabra clave: | Branching fraction Hadronic decays Rare decays Bottom mesons Charmed mesons Hadron colliders Gran col·lisionador d'hadrons (França i Suïssa) |
| Sumario: | A study of Bc+→K+K-π+ decays is performed for the first time using data corresponding to an integrated luminosity of 3.0 fb-1 collected by the LHCb experiment in pp collisions at center-of-mass energies of 7 and 8 TeV. Evidence for the decay Bc+→χc0(→K+K-)π+ is reported with a significance of 4.0 standard deviations, giving σ(Bc+)σ(B+)×B(Bc+→χc0π+)=(9.8-3.0+3.4(stat)±0.8(syst))×10-6. Here B denotes a branching fraction while σ(Bc+) and σ(B+) are the production cross sections for Bc+ and B+ mesons. An indication of bc weak annihilation is found for the region m(K-π+)<1.834 GeV/c2, with a significance of 2.4 standard deviations. |
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