Search for CP Violation in the Decays $D^0\\rightarrow K^0_S P^0$
Journal
Physical Review Letters
Journal Volume
106
Pages
211801
Date Issued
2011-01
Author(s)
Ko, B. R.
others
Arinstein, K.
Aushev, T.
Bakich, A.M.
Balagura, V.
Barberio, E.
Belous, K.
Bhardwaj, V.
Bhuyan, B.
Bischofberger, M.
Bondar, A.
Bozek, A.
Bra?ko, M.
Brodzicka, J.
Browder, T.E.
Chen, A.
Chen, P.
Cheon, B.G.
Chiang, C.-C.
Cho, I.-S.
Cho, K.
Choi, K.-S.
Choi, S.-K.
Choi, Y.
Eidelman, S.
Epifanov, D.
Feindt, M.
Gabyshev, N.
Garmash, A.
Golob, B.
Ha, H.
Haba, J.
Hayashii, H.
Horii, Y.
Hoshi, Y.
Hou, W.-S.
Hyun, H.J.
Iijima, T.
Inami, K.
Ishikawa, A.
Itoh, R.
Iwabuchi, M.
Iwashita, T.
Julius, T.
Kang, J.H.
Kawasaki, T.
Kiesling, C.
Kim, H.O.
Kim, M.J.
Kim, Y.J.
Kinoshita, K.
Kod?, P.
Korpar, S.
Kr?an, P.
Kumar, R.
Kuzmin, A.
Kwon, Y.-J.
Kyeong, S.-H.
Lee, M.J.
Lee, S.-H.
Liu, C.
Liventsev, D.
Louvot, R.
Matyja, A.
Miyabayashi, K.
Miyata, H.
Miyazaki, Y.
Mizuk, R.
Mohanty, G.B.
Mori, T.
Nakano, E.
Nakao, M.
Nishida, S.
Nishimura, K.
Nitoh, O.
Ogawa, S.
Ohshima, T.
Okuno, S.
Olsen, S.L.
Pakhlov, P.
Park, C.W.
Park, H.
Park, H.K.
Pestotnik, R.
Petri?, M.
Piilonen, L.E.
Poluektov, A.
R?hrken, M.
Sakai, Y.
Schneider, O.
Schwanda, C.
Schwartz, A.J.
Senyo, K.
Sevior, M.E.
Shapkin, M.
Shebalin, V.
Shen, C.P.
Shiu, J.-G.
Shwartz, B.
Simon, F.
Singh, J.B.
Smerkol, P.
Sohn, Y.-S.
Solovieva, E.
Stani?, S.
Stari?, M.
Sumihama, M.
Sumisawa, K.
Sumiyoshi, T.
Tanaka, S.
Teramoto, Y.
Trabelsi, K.
Uchida, M.
Uehara, S.
Uglov, T.
Unno, Y.
Usov, Y.
Varner, G.
Varvell, K.E.
Vinokurova, A.
Wang, C.H.
Wang, M.-Z.
Watanabe, Y.
Yamashita, Y.
Yamauchi, M.
Zhang, Z.P.
Zhilich, V.
Zhulanov, V.
Zupanc, A.
Abstract
We have searched for CP violation in the decays D(0)→K(S)(0)P(0) where P(0) denotes a neutral pseudoscalar meson that is either a π(0), η, or η' using KEKB asymmetric-energy e(+)e(-) collision data corresponding to an integrated luminosity of 791 fb(-1) collected with the Belle detector. No evidence of significant CP violation is observed. We report the most precise CP asymmetry measurement in the decay D(0)→K(S)(0)π(0) to date: A(CP)(D(0)→K(S)(0)π(0))=(-0.28±0.19±0.10)%. We also report the first measurements of CP asymmetries in the decays D(0)→K(S)(0)η and D(0)→K(S)(0)η': A(CP)(D(0)→K(S)(0)η)=(+0.54±0.51±0.16)% and A(CP)(D(0)→K(S)(0)η')=(+0.98±0.67±0.14)%, respectively.
Type
journal article