2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37906First preliminary measurement of the direct CP-violating parameter Ag by the NA48/2 experiment at CERN SPS is presented. Using more than 1.6 billions of charged kaon decays into three charged pions, the charge asymmetry in the K+-->pi+-pi+pi- Dalitz plot slope, Ag, has been measured to Ag = (0.5 +- 3.8) x 10^-4. This result is more than an order of magnitude more precise than results of previous experiments.8 pages, 2 figures, Talk given at XXXXth Rencontres de Moriond, ElectroWeak Interactions and Unified Theories, La Thuile, March 2005High Energy Physics - Experimenttext