Results on mixing in the D0 system from BABAR

With 12.3 fb(-1) collected by the BABAR experiment in 2001, the mixing parameter y = DeltaGamma/2Gamma is determined from the ratio of the D-0 lifetimes measured in the D-0 --> K(-)pi(+) and in the D-0 --> K-K+ decay modes. The preliminary result y = (-1.0 +/- 2.2(stat.) +/- 1.7(syst.)) % is obtained. Also presented is the status of measuring the mixing parameters y and x(2) = (DeltaM/Gamma)(2) from a simultaneous fit to the time evolution of the decay time distributions of Cabibbo-favored right-sign (D-0 --> K(-)pi(+)) and doubly Cabibbo-suppressed wrong-sign (D-0 --> K(+)pi(-)) decays. The wrong-sign decay rate, R-WS = (# WS decays) / ( # RS decays) = (0.38 +/- 0.04(stat.) +/- 0.02(syst.)) % is obtained from the tit to 23 fb(-1) of BABAR data taken in 2000.