Search for CP violation in D+ (s) → K−K+K+ decays
A search for direct CP violation in the Cabibbo-suppressed decay D+ s → K−K+K+ and in the doubly Cabibbo-suppressed decay D+ → K−K+K+ is reported. The analysis is performed with data collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of 13 TeV corresponding to an...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universitat Ramon Llull (URL) |
| Repositorio: | DAU Arxiu Digital de la Universitat Ramon Llull |
| OAI Identifier: | oai:dnet:dau_________::753bb135a33dd8c8696eebba8a78cc2b |
| Acceso en línea: | https://hdl.handle.net/20.500.14342/6440 https://doi.org/10.1007/JHEP07(2023)067 |
| Access Level: | acceso abierto |
| Palabra clave: | Charm Physics CP Violation Flavour Physics Hadron-Hadron Scattering Decay Processes Experimental Nuclear Physics Nuclear Physics Particle Physics Gran col·lisionador d'hadrons (França i Suïssa) 51 53 539 |
| Sumario: | A search for direct CP violation in the Cabibbo-suppressed decay D+ s → K−K+K+ and in the doubly Cabibbo-suppressed decay D+ → K−K+K+ is reported. The analysis is performed with data collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.6 fb−1 . The search is conducted by comparing the D + (s) and D − (s) Dalitz-plot distributions through a model-independent binned technique, based on fits to the K−K+K+ invariantmass distributions, with a total of 0.97 (1.27) million D+ s (D+) signal candidates. The results are given as p-values for the hypothesis of CP conservation and are found to be 13.3% for the D+ s → K−K+K+ decay and 31.6% for the D+ → K−K+K+ decay. No evidence for CP violation is observed in these decays. |
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