Ushiroda, Y.Sumisawa, K.Hazumi, M.Abe, K.Abe, K.Adachi, I.Aihara, H.Asano, Y.Aulchenko, V.Aushev, T.Bakich, A.M.Bay, A.Bedny, I.Bitenc, U.Bizjak, I.Blyth, S.Bondar, A.Bozek, A.Bračko, M.Brodzicka, J.Browder, T.E.Chang, M.-C.Chang, P.Chao, Y.Chen, A.Chen, K.-F.Chen, W.T.Cheon, B.G.Choi, S.-K.Choi, Y.Chuvikov, A.Cole, S.Dalseno, J.Danilov, M.Dash, M.Dragic, J.Eidelman, S.Fang, F.Fratina, S.Gabyshev, N.Gershon, T.Gokhroo, G.Gorišek, A.Haba, J.Hara, K.Hastings, N.C.Hayasaka, K.Hayashii, H.Higuchi, T.Hinz, L.Hokuue, T.Hoshi, Y.Hou, S.Hou, W.-S.Hsiung, Y.B.Iijima, T.Imoto, A.Inami, K.Ishikawa, A.Ishino, H.Itoh, R.Iwasaki, M.Iwasaki, Y.Kang, J.H.Kang, J.S.Kapusta, P.Katayama, N.Kawai, H.Kawasaki, T.Khan, H.R.Kichimi, H.Kim, H.J.Kim, S.M.Kinoshita, K.Križan, P.Krokovny, P.Kumar, S.Kuo, C.C.Kusaka, A.Kuzmin, A.Kwon, Y.-J.Leder, G.Lesiak, T.Li, J.Limosani, A.Lin, S.-W.Liventsev, D.Mandl, F.Matsumoto, T.Mikami, Y.Mitaroff, W.Miyabayashi, K.Miyake, H.Miyata, H.Mohapatra, D.Moloney, G.R.Nagamine, T.Nakano, E.Nakao, M.2010-11-052010-11-052010-11-05200510.1103/PhysRevLett.94.2316012-s2.0-27744554904https://infoscience.epfl.ch/handle/20.500.14299/56934WOS:000229858100013We present a new measurement of CP-violation parameters in B0→KS0π0γ decay based on a sample of 275×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. One of the B mesons is fully reconstructed in the B0→KS0π0γ decay. The flavor of the accompanying B meson is identified from its decay products. CP-violation parameters are obtained from the asymmetry in the distribution of the proper time intervals between the two B decays. We obtain SKS0π0γ=-0.58-0.38+0.46(stat)±0.11(syst) and AKS0π0γ=+0.03±0.34(stat)±0.11(syst), for the KS0π0 invariant mass covering the full range up to 1.8GeV/c2. We also measure the CP-violation parameters for the case B0→K*0(→KS0π0)γ and obtain SK*0γ=-0.79-0.50+0.63(stat)±0.10(syst) for AK*0γ fixed at 0. © 2005 The American Physical Society.text::journal::journal article::research article