Measurements ofCP-Violating Asymmetries inB0→Ks0π0Decays

We present a measurement of the time-dependent $CP$-violating (CPV) asymmetries in $B^0\to K_S^0{\pi }^0$ decays based on $124\times {10}^6$ ${\rm Y}(4S)\to B\overline{B}$ decays collected with the BABAR detector at the PEP-II asymmetric-energy $B$ factory at SLAC. In a sample containing $122\pm 16$ signal decays, we obtain the magnitudes of the direct CPV asymmetry $C_{K_S^0{\pi }^0}={0.40}_{-0.28}^{+0.27}\pm 0.09$ and of the CPV asymmetry in the interference between mixing and decay $S_{K_S^0{\pi }^0}={0.48}_{-0.47}^{+0.38}\pm 0.06$ where the first error is statistical and the second systematic.