CP VIOLATION Results from KTeV

The current status of the direct-CP violation, ɛ′/ɛ measurement from the Fermilab KTeV experiment is reviewed here. The long-sought “direct-CP violation” effect in the two-pion system of neutral kaon decays has clearly been observed in the KTeV data. A preliminary measurement of the CP-violating charge asymmetry δ_L is also reported here for the mode K_L → π^±e^∓ν based on 298 million analyzed decays. The measurement is a substantial improvement on the current world average. A value of δ_L = 3322 ± 58(stat) ± 47(sys) ppm is measured and is in good agreement with previous measurements. The result can be used to place more stringent limits on CPT and ΔS = ΔQ violation in the neutral kaon system.