Measurements ofCP-Violating Asymmetries inB0→Ks0π0Decays

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doi:10.1103/physrevlett.93.131805

Abstract

We present a measurement of the time-dependent CP-violating (CPV) asymmetries in B0→KS0π0 decays based on 124×106 Υ(4S)→BB¯ decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. In a sample containing 122±16 signal decays, we obtain the magnitudes of the direct CPV asymmetry CKS0π0=0.40−0.28+0.27±0.09 and of the CPV asymmetry in the interference between mixing and decay SKS0π0=0.48−0.47+0.38±0.06 where the first error is statistical and the second systematic.Received 27 February 2004DOI:https://doi.org/10.1103/PhysRevLett.93.131805©2004 American Physical Society

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