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AUBERT, B; BARATE, R; PALANO, A; POMPILI, A; CHEN, J. C; QI, N. D; RONG, G; WANG, P; ZHU, Y. S; EIGEN, G; OFTE, I; STUGU, B; BOUTIGNY, D; ABRAMS, G. S; BORGLAND, A. W; BREON, A. B; BROWN, D. N; BUTTON-SHAFER, J; CAHN, R. N; CHARLES, E; DAY, C. T; GILL, M. S; GRITSAN, A. V; COUDERC, F; GROYSMAN, Y; JACOBSEN, R. G; KADEL, R. W; KADYK, J; KERTH, L. T; KOLOMENSKY, Yu. G; KUKARTSEV, G; LYNCH, G; MIR, L. M; ODDONE, P. J; GAILLARD, J.-M; ORIMOTO, T. J; PRIPSTEIN, M; ROE, N. A; RONAN, M. T; SHELKOV, V. G; WENZEL, W. A; BARRETT, M; FORD, K. E; HARRISON, T. J; HART, A. J; HICHEUR, A; HAWKES, C. M; MORGAN, S. E; WATSON, A. T; FRITSCH, M; GOETZEN, K; HELD, T; KOCH, H; LEWANDOWSKI, B; PELIZAEUS, M; STEINKE, M; KARYOTAKIS, Y; LEES, J. P; TISSERAND, V; ZGHICHE, A
Physical review letters, 2004, Volume: 93, Issue: 20Journal Article
We present a measurement of the time-dependent CP-violating asymmetries in $B^0 \to K^{*0}\gamma (K^{*0}\to K_S^0 \pi^0)$ decays based on 124 million $\Upsilon(4S)\to B^0\bar{B}^0$ decays collected with the BaBar detector at the PEP-II asymmetric-energy $B$ Factory at the Stanford Linear Accelerator Center. In a sample containing $105\pm 14$ signal decays, we measure $S_{K^{*0}} = 0.25 \pm 0.63 \pm 0.14$ and $S_{K^{*0}} = -0.57 \pm 0.32 \pm 0.09$, where the first error is statistical and the second systematic.
