2026-04-17T03:42:48Zhttps://recercat.cat/oai/request

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

00925njm 22002777a 4500 dc Aaij, R. author Alfonso Albero, Alejandro author Garcia Moreno, Paula author Garrido Beltrán, Lluís author Gironella Gironell, Pere author Gomez Fernandez, S. author Graugés Pous, Eugeni author Lobo Salvia, Aniol author Marin Benito, Carla author Mauricio, J. author Vazquez Gomez, Ricardo author LHCb collaboration author 2025-04-25T13:56:18Z 2025-04-25T13:56:18Z 2023 2025-04-25T13:56:18Z 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.  Hadrons Física de partícules Hadrons Particle physics Search for CP violation in D+ (s) → K−K+K+ decays