Study of Bc+ decays to the K+K-π+ final state and evidence for the decay Bc+ →χc0π+
A study of B + c → 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 p p collisions at center-of-mass energies of 7 and 8 TeV. Evidence for the decay B + c → χ c 0 ( → K + K − ) π + is reporte...
| Autores: | , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/123651 |
| Acceso en línea: | https://hdl.handle.net/2445/123651 |
| Access Level: | acceso abierto |
| Palabra clave: | Interaccions d'hadrons Mesons (Física nuclear) Hadron interactions Mesons (Nuclear physics) |
| Sumario: | A study of B + c → 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 p p collisions at center-of-mass energies of 7 and 8 TeV. Evidence for the decay B + c → χ c 0 ( → K + K − ) π + is reported with a significance of 4.0 standard deviations, giving σ ( B + c ) σ ( B + ) × B ( B + c → χ c 0 π + ) = ( 9. 8 + 3.4 − 3.0 ( stat ) ± 0.8 ( syst ) ) × 10 − 6 . Here B denotes a branching fraction while σ ( B + c ) and σ ( B + ) are the production cross sections for B + c and B + mesons. An indication of ¯ b c weak annihilation is found for the region m ( K − π + ) < 1.834 GeV / c 2 , with a significance of 2.4 standard deviations. |
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