Measurement of Time-Dependent $CP$ Violation in $B^0\to η'K^0$ Decays
Creators: name: Belle Collaboration
name: Šantelj, L.
name: Yusa, Y.
name: Abdesselam, A.
name: Adachi, I.
name: Aihara, H.
name: Said, S. Al
name: Asner, D. M.
name: Aulchenko, V.
name: Aushev, T.
name: Ayad, R.
name: Bahinipati, S.
name: Bakich, A. M.
name: Bansal, V.
name: Bhardwaj, V.
name: Bhuyan, B.
name: Bondar, A.
name: Bonvicini, G.
name: Bozek, A.
name: Bračko, M.
name: Browder, T. E.
name: Červenkov, D.
name: Chekelian, V.
name: Chen, A.
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: Eidelman, S.
name: Farhat, H.
name: Fast, J. E.
name: Ferber, T.
name: Frost, O.
name: Gaur, V.
name: Gabyshev, N.
name: Ganguly, S.
name: Garmash, A.
name: Gillard, R.
name: Glattauer, R.
name: Goh, Y. M.
name: Golob, B.
name: Haba, J.
name: Hara, K.
name: Hayasaka, K.
name: Hayashii, H.
name: He, X. H.
name: Higuchi, T.
name: Hou, W. -S.
name: Hyun, H. J.
name: Inami, K.
name: Ishikawa, A.
name: Itoh, R.
name: Iwasaki, Y.
name: Jaegle, I.
name: Joo, K. K.
name: Kakuno, H.
name: Kato, E.
name: Kawasaki, T.
name: Kiesling, C.
name: Kim, D. Y.
name: Kim, H. J.
name: Kim, J. B.
name: Kim, J. H.
name: Kim, K. T.
name: Kim, M. J.
name: Kim, Y. J.
name: Kinoshita, K.
name: Ko, B. R.
name: Korpar, S.
name: Križan, P.
name: Krokovny, P.
name: Kuhr, T.
name: Kumita, T.
name: Kuzmin, A.
name: Kwon, Y. -J.
name: Li, J.
name: Li, Y.
name: Gioi, L. Li
name: Libby, J.
name: Liventsev, D.
name: Matvienko, D.
name: Miyabayashi, K.
name: Miyata, H.
name: Mohanty, G. B.
name: Moll, A.
name: Mori, T.
name: Nakano, E.
name: Nakao, M.
name: Nanut, T.
name: Natkaniec, Z.
name: Nedelkovska, E.
name: Nisar, N. K.
name: Nishida, S.
name: Ogawa, S.
name: Okuno, S.
name: Olsen, S. L.
name: Pakhlov, P.
name: Pakhlova, G.
name: Park, H.
name: Pedlar, T. K.
name: Pestotnik, R.
name: Petrič, M.
name: Piilonen, L. E.
name: Ribežl, E.
name: Ritter, M.
name: Rostomyan, A.
name: Sakai, Y.
name: Sandilya, S.
name: Sanuki, T.
name: Sato, Y.
name: Savinov, V.
name: Schneider, O.
name: Schnell, G.
name: Schwanda, C.
name: Schwartz, A. J.
name: Senyo, K.
name: Sevior, M. E.
name: Shebalin, V.
name: Shen, C. P.
name: Shibata, T. -A.
name: Shiu, J. -G.
name: Simon, F.
name: Sohn, Y. -S.
name: Sokolov, A.
name: Solovieva, E.
name: Starič, M.
name: Steder, M.
name: Sumihama, M.
name: Tamponi, U.
name: Tatishvili, G.
name: Teramoto, Y.
name: Trabelsi, K.
name: Uchida, M.
name: Uehara, S.
name: Uglov, T.
name: Unno, Y.
name: Uno, S.
name: Urquijo, P.
name: Vahsen, S. E.
name: Van Hulse, C.
name: Vanhoefer, P.
name: Varner, G.
name: Vorobyev, V.
name: Vossen, A.
name: Wagner, M. N.
name: Wang, C. H.
name: Wang, M. -Z.
name: Wang, P.
name: Wang, X. L.
name: Watanabe, Y.
name: Wehle, S.
name: Williams, K. M.
name: Won, E.
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 present a measurement of the time-dependent $CP$ violation parameters in $B^0\toη'K^0$ decays. The measurement is based on the full data sample containing $772\times 10^6$ $B\bar{B}$ pairs collected at the $Υ(4S)$ resonance using the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The measured values of the mixing-induced and direct $CP$ violation parameters are: \begin{align} \sin 2 ϕ^{\rm eff}_1 &amp;= +0.68\pm 0.07 \pm 0.03, \nonumber \\ \mathcal{A}_{η'K^0} &amp;= +0.03\pm 0.05\pm 0.04, \nonumber \end{align} where the first uncertainty is statistical and the second is systematic. The values obtained are the most accurate to date. Furthermore, these results are consistent with our previous measurements and with the world-average value of $\sin 2ϕ_1$ measured in $B^0\to J/ψK^0$ decays.}
description: 15 pages, 3 figures