@article{oai:nagoya.repo.nii.ac.jp:00009558, author = {Dalseno, J. and Adachi, I. and Aihara, H. and Aushev, T. and Bakich, A. M. and Balagura, V. and Bay, A. and Bitenc, U. and Bizjak, I. and Bozek, A. and Bracˇko, M. and Ogawa, S. and Ohshima, T. and Okuno, S. and Onuki, Y. and Ostrowicz, W. and Ozaki, H. and Pakhlov, P. and Pakhlova, G. and Park, C.W. and Park, H. and Sumisawa, K. and Park, K. S. and Pestotnik, R. and Piilonen, L. E. and Sahoo, H. and Sakai, Y. and Schneider, O. and Schümann, J. and Seidl, R. and Sekiya, A. and Senyo, K. and Sumiyoshi, T. and Sevior, M. E. and Shapkin, M. and Shibuya, H. and Singh, J. B. and Sokolov, A. and Somov, A. and Stanic, S. and Staric, M. and Stoeck, H. and Takasaki, F. and Tanaka, M. and Taylor, G. N. and Teramoto, Y. and Tian, X. C. and Tsukamoto, T. and Uehara, S. and Ueno, K. and Browder, T. E. and Uglov, T. and Unno, Y. and Uno, S. and Urquijo, P. and Varner, G. and Villa, S. and Vinokurova, A. and Wang, C. C. and Wang, C. H. and Watanabe, Y. and Chao, Y. and Wedd, R. and Won, E. and Yabsley, B. D. and Yamaguchi, A. and Yamashita, Y. and Yamauchi, M. and Zhang, Z. P. and Zhilich, V. and Zupanc, A. and Chen, A. and Cheon, B. G. and Chistov, R. and Cho, I.-S. and Choi, Y. and Choi, Y. K. and Danilov, M. and Dash, M. and Drutskoy, A. and Eidelman, S. and Go, A. and Ha, H. and Hayasaka, K. and Hazumi, M. and Heffernan, D. and Hokuue, T. and Hyun, H. J. and Inami, K. and Ishikawa, A. and Ishino, H. and Iwasaki, M. and Iwasaki, Y. and Joshi, N. J. and Kah, D. H. and Kang, J. H. and Kapusta, P. and Katayama, N. and Kawai, H. and Kawasaki, T. and Kichimi, H. and Kim, H. J. and Kim, Y. J. and Kinoshita, K. and Krizˇan, P. and Krokovny, P. and Kumar, R. and Kuo, C. C. and Kuzmin, A. and Kwon, Y.-J. and Lee, J. S. and Lee, S. E. and Lesiak, T. and Li, J. and Limosani, A. and Lin, S.-W. and Liventsev, D. and Mandl, F. and Matsumoto, T. and McOnie, S. and Medvedeva, T. and Mitaroff, W. and Miyake, H. and Miyata, H. and Moloney, G. R. and Nakano, E. and Nakao, M. and Nishida, S. and Nitoh, O.}, issue = {7}, journal = {PHYSICAL REVIEW D}, month = {Oct}, note = {We present a measurement of the branching fraction and time-dependent CP violation parameters for B^0 → D^*+D^*-K^{0}_{S} decays. These results are obtained from a 414 fb^{-1} data sample that contains 449×10^6 B\bar{B} pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We obtain the branching fraction, B(B^0→D^*+D*^-K^{O}_{S})= [3.4±0.4(stat)±0.7(syst)]×10^-3, which is in agreement with the current world average. We also obtain an upper limit on the product branching fraction for a possible two-body decay, B(B^0 → D_s1^+(2536)D^*-)B(D_s1^+(2536)→ D^*+K^{O}_{S})<7.1×10^{-4} (90% CL). In the traditional 2-parameter time-dependent CP analysis, we measure the CP violation parameters, A_CP=-0.01^{+0.28}_{-0.28}(stat)±0.09(syst), Dsin2φ_1=0.06^{+0.45}_{-0.44}(stat)±0.06(syst). No evidence for either mixing-induced or direct CP violation is found. In a 3-parameter fit sensitive to cos2φ_1 performed in the half-Dalitz spaces, s^≤ s^+ and s^->s^+, where s^±[equivalent]m2(D^*±K^{0}_{S}), we extract the CP violation parameters, J_c/J_0=0.60^{+0.25}_{-0.28}(stat)±0.08(syst), 2J_s1/J_0sin2φ_1=-0.17^{+0.42}_{-0.42}(stat)±0.09(syst), 2J_s2/J_0cos2φ_1=-0.23^{+0.43}_{-0.41}(stat)±0.13(syst). A large value of J_c/J_0 would indicate a significant resonant contribution from a broad unknown D_s^**+ state. Although the sign of the factor, 2J_s2/J_0, can be deduced from theory, no conclusion can be drawn regarding the sign of cos2φ_1 given the errors.}, pages = {072004--072004}, title = {Measurement of branching fraction and time-dependent CP asymmetry parameters in B^0 → D^*+D^*-K^{0}_{S}decays}, volume = {76}, year = {2007} }