Measurement of the time-dependent CP asymmetry in B0→ K*0 γ decays

2007 
We present a preliminary measurement of the time-dependent CP asymmetry in B0 → K*0 (K0 Sπ 0)γ decays based on 431 × 106 γ(4S) → BB decays collected with the BABAR detector at the PEP-II asymmetric-energy e +e- collider at SLAC. In a sample containing 316±22 signal events we measure SK* = -0.08 ± 0.31 ± 0.05 and CK*γ = -0.15 ± 0.17 ± 0.03. The uncertainties are statistical and systematic, respectively.
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