Search for CP violation in D^0 -&gt; pi^0 pi^0 decays
Creators: name: Nisar, N. K.
name: Trabelsi, K.
name: Mohanty, G. B.
name: Aziz, T.
name: Abdesselam, A.
name: Adachi, I.
name: Aihara, H.
name: Arinstein, K.
name: Asner, D. M.
name: Aulchenko, V.
name: Aushev, T.
name: Ayad, R.
name: Bahinipati, S.
name: Bakich, A. M.
name: Bala, A.
name: Bansal, V.
name: Behera, P.
name: Belous, K.
name: Bhardwaj, V.
name: Bobrov, A.
name: Bonvicini, G.
name: Bozek, A.
name: Bračko, M.
name: Browder, T. E.
name: Červenkov, D.
name: Cheon, B. G.
name: Chilikin, K.
name: Cho, K.
name: Chobanova, V.
name: Choi, Y.
name: Cinabro, D.
name: Dalseno, J.
name: Danilov, M.
name: Doležal, Z.
name: Drásal, Z.
name: Drutskoy, A.
name: Dutta, D.
name: Dutta, K.
name: Eidelman, S.
name: Epifanov, D.
name: Farhat, H.
name: Fast, J. E.
name: Ferber, T.
name: Gaur, V.
name: Gabyshev, N.
name: Ganguly, S.
name: Garmash, A.
name: Goh, Y. M.
name: Golob, B.
name: Hara, T.
name: Hayashii, H.
name: He, X. H.
name: Hoshi, Y.
name: Hou, W. -S.
name: Iijima, T.
name: Ishikawa, A.
name: Itoh, R.
name: Iwasaki, Y.
name: Iwashita, T.
name: Kang, J. H.
name: Kawasaki, T.
name: Kiesling, C.
name: Kim, D. Y.
name: Kim, J. B.
name: Kim, J. H.
name: Kim, M. J.
name: Kim, Y. J.
name: Kinoshita, K.
name: Ko, B. R.
name: Kodyš, P.
name: Korpar, S.
name: Križan, P.
name: Krokovny, P.
name: Kuhr, T.
name: Kumar, R.
name: Kuzmin, A.
name: Kwon, Y. -J.
name: Lange, J. S.
name: Lee, S. -H.
name: Gioi, L. Li
name: Libby, J.
name: Liventsev, D.
name: Lukin, P.
name: Macek, B.
name: Matvienko, D.
name: Miyabayashi, K.
name: Miyata, H.
name: Mizuk, R.
name: Moll, A.
name: Mussa, R.
name: Nakano, E.
name: Nakao, M.
name: Nayak, M.
name: Nedelkovska, E.
name: Nitoh, O.
name: Ogawa, S.
name: Okuno, S.
name: Pakhlov, P.
name: Pakhlova, G.
name: Park, H.
name: Park, H. K.
name: Pedlar, T. K.
name: Peng, T.
name: Pestotnik, R.
name: Petrič, M.
name: Piilonen, L. E.
name: Ribežl, E.
name: Ritter, M.
name: Röhrken, M.
name: Rostomyan, A.
name: Sakai, Y.
name: Sandilya, S.
name: Santelj, L.
name: Sanuki, T.
name: Sato, Y.
name: Schneider, O.
name: Schnell, G.
name: Schwanda, C.
name: Schwartz, A. J.
name: Semmler, D.
name: Senyo, K.
name: Seon, O.
name: Sevior, M. E.
name: Shapkin, M.
name: Shebalin, V.
name: Shibata, T. -A.
name: Shiu, J. -G.
name: Shwartz, B.
name: Simon, F.
name: Sohn, Y. -S.
name: Sokolov, A.
name: Solovieva, E.
name: Stanič, S.
name: Starič, M.
name: Steder, M.
name: Stypula, J.
name: Sumiyoshi, T.
name: Tatishvili, G.
name: Teramoto, Y.
name: Uchida, M.
name: Uglov, T.
name: Uno, S.
name: Urquijo, P.
name: Usov, Y.
name: Vahsen, S. E.
name: Van Hulse, C.
name: Vanhoefer, P.
name: Varner, G.
name: Varvell, K. E.
name: Wagner, M. N.
name: Wang, C. H.
name: Wang, M. -Z.
name: Wang, P.
name: Watanabe, Y.
name: Williams, K. M.
name: Won, E.
name: Yamaoka, J.
name: Yamashita, Y.
name: Yashchenko, S.
name: Yook, Y.
name: Zhang, Z. P.
name: Zhilich, V.
name: Zhulanov, V.
name: Zupanc, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We search for CP violation in neutral charm meson decays using a data sample with an integrated luminosity of 966 fb^-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. The asymmetry obtained in the rate of D^0 and D^0-bar decays to the pi^0 pi^0 final state, [-0.03+-0.64(stat)+-0.10(syst)]%, is consistent with no CP violation. This constitutes an order of magnitude improvement over the existing result. We also present an updated measurement of the CP asymmetry in the D^0 -&gt; K_S pi^0 decay: A_{CP}(D^0 -&gt; K_S pi^0) = [-0.21+-0.16(stat)+-0.07(syst)]%.