2026-04-05T10:53:47Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/2206312025-12-05T16:15:15Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917

Search for CP violation in D+ (s) → K−K+K+ decays Aaij, R. Alfonso Albero, Alejandro Garcia Moreno, Paula Garrido Beltrán, Lluís Gironella Gironell, Pere Gomez Fernandez, S. Graugés Pous, Eugeni Lobo Salvia, Aniol Marin Benito, Carla Mauricio, J. Vazquez Gomez, Ricardo LHCb collaboration Hadrons Física de partícules Hadrons Particle physics 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.  2025-04-25T13:56:18Z 2025-04-25T13:56:18Z 2023 2025-04-25T13:56:18Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció del document publicat a: https://doi.org/10.1007/JHEP07(2023)067 Journal of High Energy Physics, 2023, vol. 2023, num.67 https://doi.org/10.1007/JHEP07(2023)067 cc-by (c) Aaij, R. et al., 2023 http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Springer Verlag Articles publicats en revistes (Física Quàntica i Astrofísica)