Precise measurement of the CP violation parameter sin2phi_1 in B0--&gt;(c\bar c)K0 decays
Creators: name: Belle Collaboration
name: Adachi, I.
name: Aihara, H.
name: Asner, D. M.
name: Aulchenko, V.
name: Aushev, T.
name: Aziz, T.
name: Bakich, A. M.
name: Bay, A.
name: Bhardwaj, V.
name: Bhuyan, B.
name: Bischofberger, M.
name: Bondar, A.
name: Bozek, A.
name: Bracko, M.
name: Browder, T. E.
name: Chen, P.
name: Cheon, B. G.
name: Chilikin, K.
name: Chistov, R.
name: Cho, K.
name: Choi, S. -K.
name: Choi, Y.
name: Dalseno, J.
name: Danilov, M.
name: Dolezal, Z.
name: Drasal, Z.
name: Eidelman, S.
name: Epifanov, D.
name: Fast, J. E.
name: Gaur, V.
name: Gabyshev, N.
name: Garmash, A.
name: Goh, Y. M.
name: Golob, B.
name: Haba, J.
name: Hara, K.
name: Hara, T.
name: Hayasaka, K.
name: Hayashii, H.
name: Higuchi, T.
name: Horii, Y.
name: Hoshi, Y.
name: Hou, W. -S.
name: Hsiung, Y. B.
name: Hyun, H. J.
name: Iijima, T.
name: Ishikawa, A.
name: Itoh, R.
name: Iwabuchi, M.
name: Iwasaki, Y.
name: Iwashita, T.
name: Julius, T.
name: Kapusta, P.
name: Katayama, N.
name: Kawasaki, T.
name: Kichimi, H.
name: Kiesling, C.
name: Kim, H. J.
name: Kim, H. O.
name: Kim, J. B.
name: Kim, J. H.
name: Kim, K. T.
name: Kim, Y. J.
name: Kinoshita, K.
name: Ko, B. R.
name: Koblitz, S.
name: Kodyš, P.
name: Korpar, S.
name: Krizan, P.
name: Krokovny, P.
name: Kuhr, T.
name: Kumar, R.
name: Kumita, T.
name: Kuzmin, A.
name: Kwon, Y. -J.
name: Lange, J. S.
name: Lee, S. -H.
name: Li, J.
name: Li, Y.
name: Liu, C.
name: Liu, Y.
name: Liu, Z. Q.
name: Liventsev, D.
name: Louvot, R.
name: Matvienko, D.
name: McOnie, S.
name: Miyabayashi, K.
name: Miyata, H.
name: Miyazaki, Y.
name: Mizuk, R.
name: Mohanty, G. B.
name: Mori, T.
name: Muramatsu, N.
name: Nakano, E.
name: Nakao, M.
name: Nakazawa, H.
name: Neubauer, S.
name: Nishida, S.
name: Nishimura, K.
name: Nitoh, O.
name: Ogawa, S.
name: Ohshima, T.
name: Okuno, S.
name: Olsen, S. L.
name: Onuki, Y.
name: Ozaki, H.
name: Pakhlov, P.
name: Pakhlova, G.
name: Park, H. K.
name: Park, K. S.
name: Pedlar, T. K.
name: Pestotnik, R.
name: Petric, M.
name: Piilonen, L. E.
name: Poluektov, A.
name: Rohrken, M.
name: Rozanska, M.
name: Sahoo, H.
name: Sakai, K.
name: Sakai, Y.
name: Sanuki, T.
name: Sato, Y.
name: Schneider, O.
name: Schwanda, C.
name: Schwartz, A. J.
name: Senyo, K.
name: Shebalin, V.
name: Shen, C. P.
name: Shibata, T. -A.
name: Shiu, J. -G.
name: Shwartz, B.
name: Sibidanov, A.
name: Simon, F.
name: Singh, J. B.
name: Smerkol, P.
name: Sohn, Y. -S.
name: Sokolov, A.
name: Solovieva, E.
name: Stanic, S.
name: Staric, M.
name: Sumihama, M.
name: Sumisawa, K.
name: Sumiyoshi, T.
name: Tanaka, S.
name: Tatishvili, G.
name: Teramoto, Y.
name: Tikhomirov, I.
name: Trabelsi, K.
name: Tsuboyama, T.
name: Uchida, M.
name: Uehara, S.
name: Uglov, T.
name: Unno, Y.
name: Uno, S.
name: Ushiroda, Y.
name: Vahsen, S. E.
name: Varner, G.
name: Varvell, K. E.
name: Vinokurova, A.
name: Wang, C. H.
name: Wang, M. -Z.
name: Wang, P.
name: Watanabe, M.
name: Watanabe, Y.
name: Williams, K. M.
name: Won, E.
name: Yabsley, B. D.
name: Yamamoto, H.
name: Yamashita, Y.
name: Yamauchi, M.
name: Yusa, Y.
name: Zhang, Z. P.
name: Zhilich, V.
name: Zupanc, A.
name: Zyukova, O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present a precise measurement of the CP violation parameter sin2phi_1 and the direct CP violation parameter A_f using the final data sample of 772x10^6 B\bar B pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. One neutral B meson is reconstructed in a J/psi K0S, psi(2S) K0S, chi_c1 K0S or J/psi K0L CP-eigenstate and its flavor is identified from the decay products of the accompanying B meson. From the distribution of proper time intervals between the two B decays, we obtain the following CP violation parameters: sin2phi_1=0.667+-0.023(stat)+-0.012(syst) and A_f=0.006+-0.016(stat)+-0.012(syst).
description: 6 pages, 2 figures, 3 tables, submitted to PRL