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239 results on '"P. Smerkol"'

101. Search for lepton-flavor-violating τ decays into a lepton and a vector meson

Author: M. J. Kim, Y. Watanabe, M. Starič, G. B. Mohanty, H. Miyata, M. Bischofberger, T. Kumita, B. G. Cheon, K. Hayasaka, K. M. Williams, A. Chen, E. Nakano, Y. S. Sohn, H. Park, A. Bozek, S. E. Vahsen, K. Trabelsi, C. P. Shen, M. Shapkin, M. Röhrken, Y. J. Kim, S. Uehara, Y. J. Kwon, B.A. Shwartz, V.N. Zhilich, N. J. Joshi, H. Ha, A. Vinokurova, O. Nitoh, O. Schneider, J. Haba, Z. Doležal, K. Miyabayashi, T. E. Browder, K. Cho, R. Pestotnik, T. Iijima, A.S. Kuzmin, S.I. Eidelman, K. Arinstein, Vladimir Zhulanov, A. Bondar, K. Belous, Anze Zupanc, W. S. Hou, H. Nakazawa, R. Mizuk, D. Epifanov, M. E. Sevior, D. H. Kah, H. J. Kim, K. Inami, K. Senyo, B. R. Ko, Yang Li, M. Danilov, Chang Liu, T. Zivko, Y. B. Hsiung, T. Kawasaki, Marko Petrič, Y. Choi, H. J. Hyun, P. Smerkol, Zhenyu Zhang, V.M. Aulchenko, A. Moll, J. G. Shiu, Vladislav Balagura, K. Kinoshita, K. S. Choi, J. Dalseno, Sunmin Ryu, S. Nishida, A. Drutskoy, D. Liventsev, E. L. Barberio, E. Won, Y. Miyazaki, O. Zyukova, G. S. Varner, Hitoshi Yamamoto, R. Itoh, Yoshinobu Unno, Anton Poluektov, Yasuyuki Horii, P. Wang, B. Golob, V. Bhardwaj, S. Okuno, J. S. Lange, H. Hayashii, Y. Teramoto, A. Bay, Y. Hoshi, R. Louvot, C. W. Park, V.E. Shebalin, P. Križan, A. Vossen, F. Simon, Y. Sakai, Andrey Sokolov, J. H. Kang, S. Uno, C. Schwanda, C. C. Chiang, M. Nakao, S. McOnie, Y. F. Liu, H. O. Kim, T. Mori, H. Sahoo, Y. Usov, T. Uglov, M. Watanabe, Kazuhiko Hara, H. K. Park, Y. Yamashita, H. Aihara, S. H. Kyeong, I. S. Cho, S. Ogawa, C. H. Wang, T. Sumiyoshi, Samo Stanič, Sang Hoon Lee, A. Garmash, C. Kiesling, H. Kawai, M. J. Lee, M. Bračko, Yasushi Nagasaka, A. M. Bakich, Z. Natkaniec, T. Ohshima, N. Gabyshev, M. Iwabuchi, L. E. Piilonen, G. Pakhlova, T. Julius, Po-Hsun Chen, and K. Sakai
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Meson, Branching fraction, High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics - Experiment, B-factory, Nuclear physics, High Energy Physics - Experiment (hep-ex), Particle decay, KEKB, High Energy Physics::Experiment, Vector meson, Lepton
Abstract: We search for lepton-flavor-violating tau-> ell V^0 decays, where ell is an electron or muon and V^0 is one of the vector mesons rho^0, phi, omega, K*0 and K*0-bar. We use 854 fb^{-1} of data collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. No evidence for a signal is found in any decay mode, and we obtain 90% confidence level upper limits on the individual branching fractions in the range (1.2-8.4)*10^{-8}., 13 pages, 5 figures, submitted to Phys. Lett. B
Published: 2011

102. Search for lepton flavor violating τ− decays into ℓ−KS0 and ℓ−KS0KS0

Author: Marko Petrič, H. J. Hyun, P. Smerkol, O. Nitoh, M. Dash, Sunmin Ryu, E. Won, T. Iijima, B. R. Ko, B. Golob, V.N. Zhilich, M. Tanaka, P. Kapusta, S. Okuno, Y. Miyazaki, B. G. Cheon, Motoki Iwasaki, Y. Iwasaki, W. S. Hou, Y. J. Kwon, T. Sumiyoshi, J. Haba, Vladislav Balagura, O. Schneider, Sang Hoon Lee, D. Liventsev, Anton Poluektov, K. Trabelsi, Y. Teramoto, S. L. Olsen, Bruce Yabsley, Y. Sakai, K. Belous, C. P. Shen, H. Sahoo, H. Nakazawa, L. E. Piilonen, D. H. Kah, V.M. Aulchenko, G. Pakhlova, G. S. Varner, M. Starič, A. Matyja, T. Mori, H. Aihara, Y. Usov, T. Julius, Po-Hsun Chen, Andrey Sokolov, J. G. Shiu, Z. Doležal, P. Wang, J. B. Singh, A. Drutskoy, J. Li, Anze Zupanc, T. Tsuboyama, Samo Stanič, E. L. Barberio, O. Zyukova, A. M. Bakich, Z. Natkaniec, Y. Watanabe, H. Hayashii, Kazuhiko Hara, P. Goldenzweig, Y. B. Hsiung, Jingxu Wang, P. Chang, K. Vervink, Jung-Hyun Kim, Y. Choi, S. Uno, P. Krokovny, J. H. Kang, K. Arinstein, R. Mizuk, Z. P. Zhang, H. O. Kim, M. Watanabe, Yasuyuki Horii, T. Ohshima, H. Yamamoto, A. Bay, S. Suzuki, M. C. Chang, I. S. Cho, C. Liu, N. Gabyshev, R. Louvot, H. Miyata, M. Bischofberger, K. Inami, B.A. Shwartz, Y. Hoshi, Rakesh Kumar, S.I. Eidelman, M. Nakao, W. Dungel, A. Kuzmin, G. B. Mohanty, S. McOnie, C. H. Wang, A. Chen, K. Hayasaka, H. J. Kim, H. K. Park, Y. Yamashita, M. Shapkin, M. Iwabuchi, K. Senyo, M. Röhrken, Y. J. Kim, T. Kawasaki, S. Ogawa, S. H. Kyeong, C. Kiesling, M. J. Lee, M. Bračko, M. E. Sevior, A. Bozek, I. Adachi, K. F. Chen, S. Nishida, S. Uehara, H. Ha, N. Katayama, X. L. Wang, T. E. Browder, and M. Danilov
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, 010306 general physics, 01 natural sciences, Flavor, B-factory, Lepton
Abstract: We have searched for the lepton-flavor-violating decays τ- decays into l-KS 0 and l-KS 0KS 0 (l=e or μ), using a data sample of 671 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. No evidence for a signal was found in any of the decay modes, and we set the following upper limits for the branching fractions: B(τ-→e-KS 0)
Published: 2010

103. Search for lepton-flavor-violating τ decays into three leptons with 719 million produced τ+τ− pairs

Author: W. S. Hou, Y. Sakai, M. E. Sevior, H. K. Park, Y. Yamashita, M. Iwasaki, Yang Liu, T. Kumita, R. Louvot, K. Belous, S. Korpar, E. Solovieva, S. H. Kyeong, A. Matyja, B. Golob, V. Bhardwaj, M. Starič, Peter Kodys, C. Kiesling, J. S. Lange, T. Mori, J. G. Shiu, J. Dalseno, I. S. Cho, M. Feindt, T. Iijima, Phillip Urquijo, S. L. Olsen, E. Nakano, O. Nitoh, B. Y. Han, M. J. Lee, K. Arinstein, J. Haba, H. Nakazawa, Y. Watanabe, R. Mizuk, M. Bračko, C. H. Wang, P. Goldenzweig, H. J. Kim, Y. Iwasaki, T. Zivko, Y. B. Hsiung, Y. J. Kwon, B. Shwartz, Chang Liu, O. Schneider, A. Zupanc, H. O. Kim, S. Ryu, S. Uno, C. Schwanda, Yoshinobu Unno, K. Vervink, M. C. Chang, E. Won, A.S. Kuzmin, K. Sakai, D. Epifanov, Jasvinder A. Singh, M. Iwabuchi, L. E. Piilonen, B. R. Ko, G. Pakhlova, K. Senyo, T. Uglov, T. Kawasaki, Marko Petrič, H. J. Hyun, P. Smerkol, Pavel Krokovny, Y. Choi, D. Liventsev, G. S. Varner, Po-Hsun Chen, C. C. Zhang, V.M. Aulchenko, H. Miyata, M. Bischofberger, Y. Hoshi, R. Itoh, Y. Miyazaki, P. Wang, M. Nakao, K. Hayasaka, O. Zyukova, S. McOnie, P. Pakhlov, K. Trabelsi, C. P. Shen, A. M. Bakich, H. Sahoo, Zhenyu Zhang, Z. Natkaniec, T. Ohshima, K. Inami, S. Okuno, A. Drutskoy, N. Gabyshev, T. Aushev, T. Sumiyoshi, S. Ogawa, H. Park, Y. Teramoto, Bruce Yabsley, A. Bozek, S. K. Kim, P. Chang, Jung-Hyun Kim, B. G. Cheon, Anton Poluektov, S. Uehara, H. Ha, S. Nishida, A. Chen, H. Hayashii, Y. I. Kim, M. Shapkin, Robin Wedd, M. Röhrken, Y. J. Kim, R. Pestotnik, T. E. Browder, P. Kvasnička, K. Miyabayashi, Soohyung Lee, C. C. Chiang, A. Bay, C. W. Park, P. Križan, J. H. Kang, K. Nishimura, Jennifer S. Li, and Semen Eidelman
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, Electron, 01 natural sciences, B-factory, Nuclear physics, KEKB, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Flavor, Lepton
Abstract: We present a search for lepton-flavor-violating τ decays into three leptons (electrons or muons) using 782 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No evidence for these decays is observed and we set 90% confidence level upper limits on the branching fractions between 1.5 × 10- 8 and 2.7 × 10- 8. © 2010 Elsevier B.V.
Published: 2010

104. Erratum: Measurement of the inclusive semileptonic branching fractionB(Bs0→X−ℓ+νℓ)at Belle [Phys. Rev. D87, 072008 (2013)]

Author: M. Uchida, B. G. Cheon, V. Chobanova, D. Liventsev, O. Lutz, M. Rozanska, Y. Choi, G. S. Varner, L. Santelj, J. Dalseno, Z. Q. Liu, R. Itoh, P. Wang, Y. M. Goh, G. Schnell, K. Belous, S. Korpar, T. Iijima, Byeong Rok Ko, K. Senyo, T. Kawasaki, A. Zupanc, Y. Sakai, E. Nakano, K. T. Kim, T. Kuhr, O. Nitoh, R. Gillard, S. Esen, J. Libby, Kevin Varvell, A. M. Bakich, S. K. Choi, T. Ohshima, M. T. Prim, Z. Drásal, L. E. Piilonen, Yukinori Sato, N. Gabyshev, T. Aushev, E. Kato, D. Cinabro, J. G. Shiu, H. O. Kim, G. Pakhlova, P. Chang, H. Aihara, Dipanwita Dutta, A.E. Bondar, Y. F. Liu, B. Bhuyan, J. Li, H. Sahoo, Phillip Urquijo, E. Solovieva, S. Okuno, T. E. Browder, K. M. Williams, Y. Watanabe, Y. B. Li, T. Uglov, Z. P. Zhang, J. Klucar, M. Z. Wang, Z. Doležal, Y. Teramoto, T. Tsuboyama, K. Kinoshita, G. Bonvicini, M. Shapkin, Sunmin Ryu, E. Won, M. Röhrken, K. Chilikin, Y. J. Kim, Richard T. Kouzes, Po-Hsun Chen, S. Eidelman, P. Pakhlov, S. Uehara, C. Liu, C. Oswald, C. Kiesling, R. Chistov, P. Krokovny, V. Gaur, H. Park, O. Seon, Frank Simon, M. Nakao, A. Bozek, S. H. Lee, K. Cho, K. Trabelsi, K. Prothmann, R. Pestotnik, M. Bračko, A. Drutskoy, H. Yamamoto, S. Nishida, C. P. Shen, D. M. Asner, M. E. Sevior, P. Vanhoefer, B. Shwartz, V. Chekelian, A. Chen, T. Sumiyoshi, B. Kronenbitter, Norihito Muramatsu, Martin Ritter, S. Ogawa, H. Hayashii, Hyunyong Kim, Y. Unno, T. Sanuki, I. Adachi, W. S. Hou, T.-A. Shibata, K. Arinstein, A.L. Sibidanov, J. Haba, B. Golob, N. K. Nisar, V.N. Zhilich, K. Miyabayashi, E. Nedelkovska, T. Saito, Y. Iwasaki, Y. J. Kwon, O. Schneider, H. Farhat, J. B. Kim, R. Mizuk, Y. S. Sohn, S. Sandilya, M. J. Kim, A. J. Schwartz, M. Starič, G. B. Mohanty, T. Kumita, J. E. Fast, Yasushi Nagasaka, C. B. Van Hulse, C. C. Zhang, M. Watanabe, J. C. Dingfelder, H. K. Park, Y. Yamashita, Sanmay Ganguly, R. Louvot, W. Ostrowicz, G. Tatishvili, T. Nozaki, C. H. Wang, S. Uno, C. Schwanda, Marko Petrič, H. J. Hyun, P. Smerkol, A. Ishikawa, D. Matvienko, P. Križan, Andrey Sokolov, J. H. Kang, V. Bhardwaj, T. K. Pedlar, A. Moll, S. L. Olsen, D. H. Kah, H. Miyata, Y. Hoshi, K. Hayasaka, and Yasuyuki Horii
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Branching fraction
Published: 2014

105. Study of exclusiveB→Xuℓνdecays and extraction of|Vub|using full reconstruction tagging at the Belle experiment

Author: Mikhail Danilov, M. Röhrken, K. Chilikin, Vladimir Zhulanov, M. E. Sevior, H. K. Park, S. Nishida, B. Kronenbitter, Y. Li, S. Okuno, V.E. Shebalin, M. Bračko, R. Mussa, D. M. Asner, S. H. Lee, H. Farhat, B. Golob, S. L. Olsen, A. Rostomyan, M. Watanabe, I. S. Cho, G. Tatishvili, Bruce Yabsley, A. Ishikawa, T. Nozaki, R. Pestotnik, S. E. Vahsen, Yoshinobu Unno, S. Uehara, M. Nakao, D. H. Kah, A. Bala, Jochen Dingfelder, P. Križan, J. Libby, D. Dutta, W. S. Hou, H. Hayashii, T. Tsuboyama, Y. Iwasaki, Y. S. Sohn, Y. Sakai, Yukinori Sato, J. G. Shiu, D. Y. Kim, M. Nayak, T. Saito, E. Nakano, Torben Ferber, C. Oswald, P. Krokovny, Yongsun Kim, J. Dalseno, K. T. Kim, K. Cho, M. Sumihama, O. Schneider, Leo Piilonen, T. Kawasaki, C. Van Hulse, J. H. Kang, S. Uno, C. Schwanda, Y. Ushiroda, R. Gillard, J. Klucar, D. Cinabro, Peter Kodys, Phillip Urquijo, H. J. Kim, M. Ritter, M. Shapkin, S. Ogawa, P. Lukin, B. R. Ko, K. M. Williams, A.S. Kuzmin, O. Seon, Frank Simon, V. Savinov, M. Uchida, Z. Natkaniec, V. Chobanova, E. Won, Jung-Hyun Kim, G. Schnell, T. K. Pedlar, Y. Yamashita, James E. Fast, A. Moll, Z. Drásal, C. H. Wang, D. A. Epifanov, D. Liventsev, Marko Petrič, S. Sandilya, J. Haba, A.L. Sibidanov, H. J. Hyun, P. Smerkol, Y. Teramoto, Toru Iijima, Y. Yook, H. Sahoo, V.M. Aulchenko, Yueh-Feng Liu, A. Bozek, T. Uglov, Semen Eidelman, C. Ng, K. Senyo, B. G. Cheon, O. Nitoh, A. Drutskoy, M. Steder, G. Varner, M. Starič, I. Adachi, K. Miyabayashi, S. Yashchenko, E. Nedelkovska, R. Itoh, D. Matvienko, A. Frey, P. Wang, M. N. Wagner, Y. Choi, Y. Hoshi, Z. Doležal, T. A. Shibata, V. Chekelian, H. Miyata, T. Kuhr, T. Julius, E. Solovieva, Yasushi Nagasaka, Po-Hsun Chen, H. Park, K. Trabelsi, Hiroaki Aihara, J. B. Kim, K. Sumisawa, T. E. Browder, G. B. Mohanty, R. Chistov, C. P. Shen, A. M. Bakich, T. Sumiyoshi, T. Sanuki, T. Aushev, C. Kiesling, V. Zhilich, S. Korpar, Z. P. Zhang, J. Li, N. K. Nisar, L. Santelj, Samo Stanič, Y. J. Kwon, Y. M. Goh, V. Gaur, A. Zupanc, Kevin Varvell, Y. Watanabe, V. Vorobyev, Sunmin Ryu, P. Vanhoefer, and S. Ganguly
Subjects: Hadronic decay, Physics, Nuclear and High Energy Physics, Particle physics, Muon, Meson, 010308 nuclear & particles physics, 01 natural sciences, Omega, Belle experiment, Combinatorics, Photon emission, 0103 physical sciences, Matrix element, 010306 general physics
Abstract: We report the results of a study of the exclusive semileptonic decays ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$, ${\overline{B}}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$, ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{0}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$, ${\overline{B}}^{0}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{+}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$ and ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\omega}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$, where $\ensuremath{\ell}$ represents an electron or a muon. The events are tagged by fully reconstructing a second $B$ meson in the event in a hadronic decay mode. The measured branching fractions are $\mathcal{B}({B}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}})=(0.80\ifmmode\pm\else\textpm\fi{}0.08\ifmmode\pm\else\textpm\fi{}0.04)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$, $\mathcal{B}({\overline{B}}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}})=(1.49\ifmmode\pm\else\textpm\fi{}0.09\ifmmode\pm\else\textpm\fi{}0.07)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$, $\mathcal{B}({B}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{0}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}})=(1.83\ifmmode\pm\else\textpm\fi{}0.10\ifmmode\pm\else\textpm\fi{}0.10)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$, $\mathcal{B}({\overline{B}}^{0}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{+}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}})=(3.22\ifmmode\pm\else\textpm\fi{}0.27\ifmmode\pm\else\textpm\fi{}0.24)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$, and $\mathcal{B}({B}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\omega}{\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}})=(1.07\ifmmode\pm\else\textpm\fi{}0.16\ifmmode\pm\else\textpm\fi{}0.07)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$, where the first error is statistical and the second one is systematic. The obtained branching fractions are inclusive of soft photon emission. We also determine the branching fractions as a function of the 4-momentum transfer squared to the leptonic system ${q}^{2}=({p}_{\ensuremath{\ell}}+{p}_{\ensuremath{\nu}}{)}^{2}$, where ${p}_{\ensuremath{\ell}}$ and ${p}_{\ensuremath{\nu}}$ are the lepton and neutrino 4-momenta, respectively. Using the pion modes, a recent light cone sum rule calculation, lattice QCD results and a model-independent description of the hadronic form factor, a value of the Cabibbo-Kobayashi-Maskawa matrix element $|{V}_{ub}|=(3.52\ifmmode\pm\else\textpm\fi{}0.29)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$ is extracted. A structure in the two-pion invariant mass distribution near $1.3\text{ }\text{ }\mathrm{GeV}/{c}^{2}$, which might be dominated by the decay ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{f}_{2}(1270){\ensuremath{\ell}}^{\ensuremath{-}}{\overline{\ensuremath{\nu}}}_{\ensuremath{\ell}}$, ${f}_{2}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, is seen. These results are obtained from a $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample that contains $772\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs, collected near the $\ensuremath{\Upsilon}(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider.
Published: 2013

106. Precision Measurement of Charged Pion and Kaon Differential Cross Sections ine+e−Annihilation ats=10.52 GeV

Author: D. Cinabro, A. Ishikawa, W. S. Hou, B. Bhuyan, P. Križan, T. E. Browder, Jung-Hyun Kim, V. Vorobyev, D. A. Epifanov, H. J. Kim, J. Klucar, O. Nitoh, P. Kapusta, S. Okuno, I. Adachi, A. Ogawa, V. Chekelian, Y. Teramoto, P. Krokovny, E. Won, Rakesh Kumar, Hiroaki Aihara, H. Sahoo, J. B. Kim, Peter Kodys, A.L. Sibidanov, W. W. Jacobs, K. Cho, R. Seidl, V.N. Zhilich, T. Uglov, Andrey Sokolov, J. H. Kang, J. Haba, K. Miyabayashi, R. Mizuk, M. Shapkin, M. Röhrken, E. Nedelkovska, K. Chilikin, Y. Usov, M. J. Kim, M. Grosse Perdekamp, F. Giordano, M. Starič, James E. Fast, B.A. Shwartz, B. R. Ko, B. Golob, H. Farhat, T. Kumita, K. Senyo, G. Schnell, T. Iijima, J. S. Lange, T. K. Pedlar, E. Nakano, Vladimir Zhulanov, M. Watanabe, A. Moll, P. Pakhlov, R. Pestotnik, Z. Drásal, M. E. Sevior, V. Gaur, M. Nakao, S. Ogawa, C. Van Hulse, Y. S. Sohn, Y. J. Kwon, C. Ng, Y. Watanabe, O. Schneider, T. A. Shibata, H. Miyata, E. Kato, H. Hayashii, Y. Hoshi, Norihito Muramatsu, Yoshinobu Unno, T. Sumiyoshi, T. Tsuboyama, M. Nayak, H. Park, A. Bozek, K. Hayasaka, C. H. Wang, D. Dutta, H. K. Park, Y. Yamashita, S.I. Eidelman, Sang Hoon Lee, M. Bračko, H. O. Kim, B. G. Cheon, T. Sanuki, Jolanta Brodzicka, L. E. Piilonen, C. P. Shen, S. L. Olsen, K. M. Williams, Richard T. Kouzes, V.M. Aulchenko, M. Leitgab, A. Chen, Y. B. Hsiung, Jingxu Wang, S. Uno, T. Aushev, C. Schwanda, Yukinori Sato, J. G. Shiu, J. Dalseno, T. Julius, Po-Hsun Chen, Yang Li, M. Sumihama, Y. Choi, N. K. Nisar, L. Santelj, Y. M. Goh, A. M. Bakich, Z. Natkaniec, T. Ohshima, N. Gabyshev, G. Tatishvili, C. Oswald, Meng Wang, T. Kawasaki, M. Uchida, V. Chobanova, D. Liventsev, Marko Petrič, H. J. Hyun, G. S. Varner, P. Smerkol, R. Itoh, D. Matvienko, P. Wang, M. N. Wagner, D. M. Asner, S. Sandilya, A. Vossen, O. Seon, Frank Simon, Y. Sakai, E. Solovieva, Z. Q. Liu, A.E. Bondar, and R. Gillard
Subjects: Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, General Physics and Astronomy, 01 natural sciences, Resonance (particle physics), law.invention, Nuclear physics, Pion, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider, Energy (signal processing)
Abstract: Measurements of inclusive differential cross sections for charged pion and kaon production in e+e- annihilation have been carried out at a center-of-mass energy of √s=10.52 GeV. The measurements were performed with the Belle detector at the KEKB e+e- collider using a data sample containing 113×106 e+e -→qq events, where q={u,d,s,c}. We present charge-integrated differential cross sections dσh±/dz for h±={π±,K±} as a function of the relative hadron energy z=2Eh/√s from 0.2 to 0.98. The combined statistical and systematic uncertainties for π± (K±) are 4% (4%) at z∼0.6 and 15% (24%) at z∼0.9. The cross sections are the first measurements of the z dependence of pion and kaon production for z>0.7 as well as the first precision cross section measurements at a center-of-mass energy far below the Z0 resonance used by the experiments at LEP and SLC. © 2013 American Physical Society.
Published: 2013

107. Measurement of exclusiveΥ(1S)andΥ(2S)decays into vector-pseudoscalar final states

Author: S. H. Lee, D. M. Asner, G. Tatishvili, Z. Natkaniec, P. Lukin, B. R. Ko, B.A. Shwartz, K. Miyabayashi, S. Sandilya, Y. Sakai, M. Sumihama, S. Okuno, N. Gabyshev, V. Gaur, Andrey Sokolov, E. Nedelkovska, O. Nitoh, J. Libby, J. H. Kang, I. S. Cho, Y. Teramoto, C. Ng, K. Senyo, D. Cinabro, T. K. Pedlar, A. Bozek, W. Ostrowicz, A. Moll, Jung-Hyun Kim, D. A. Epifanov, M. Steder, Yasushi Nagasaka, Hiroaki Aihara, Y. Yamashita, K. T. Kim, H. Farhat, A. Zupanc, C. Z. Yuan, Y. Li, Mikhail Danilov, James E. Fast, T. A. Shibata, R. Gillard, G. Schnell, J. Haba, B. Golob, Sunmin Ryu, Rupert Leitner, C. Kiesling, H. Miyata, E. Solovieva, V.M. Aulchenko, Yueh-Feng Liu, Y. Yook, M. Bischofberger, Semen Eidelman, A. Bala, S. Ogawa, D. Dutta, H. K. Park, Y. Watanabe, M. Shapkin, Jochen Dingfelder, R. Mussa, Norihito Muramatsu, Hitoshi Yamamoto, T. Peng, T. Mori, T. Kumita, P. Vanhoefer, K. Kinoshita, U. Tamponi, Y. S. Sohn, M. Röhrken, K. Chilikin, T. E. Browder, Leo Piilonen, A. Ishikawa, M. Starič, M. Nakao, T. Tsuboyama, Toru Iijima, S. E. Vahsen, M. Nayak, K. Hayasaka, C. W. Park, A. Frey, P. Križan, H. J. Kim, S. Korpar, Z. Q. Liu, Y. Iwasaki, O. Seon, Frank Simon, Chang Liu, E. Nakano, Z. P. Zhang, I. Adachi, C. Van Hulse, O. Schneider, P. Krokovny, V. Vorobyev, A.S. Kuzmin, K. Cho, J. B. Kim, Yukinori Sato, Yoshinobu Unno, A. M. Bakich, V. Chekelian, H. Hayashii, S. L. Olsen, M. Bračko, J. G. Shiu, J. Dalseno, T. Saito, V.E. Shebalin, D. H. Kah, Phillip Urquijo, H. Sahoo, Samo Stanič, Y. J. Kwon, M. Ritter, Peter Kodys, Kiyoshi Tanida, C. C. Zhang, S. Ganguly, Y. Choi, M. Watanabe, S. Uehara, Z. Doležal, X. L. Wang, D. Y. Kim, E. Won, T. Sumiyoshi, T. Kawasaki, M. Uchida, V. Chobanova, D. Liventsev, T. Sanuki, R. Itoh, P. Wang, S. Yashchenko, M. N. Wagner, T. Julius, Po-Hsun Chen, A.L. Sibidanov, G. Varner, Y. Hoshi, R. Pestotnik, Torben Ferber, Yongsun Kim, S. Uno, C. Schwanda, K. Dutta, A. Chen, Z. Drásal, A. Drutskoy, C. P. Shen, V. Zhilich, J. Li, J. Yamaoka, G. B. Mohanty, Y. Yusa, W. S. Hou, E. Kato, Marko Petrič, H. J. Hyun, P. Smerkol, B. G. Cheon, D. Matvienko, N. K. Nisar, T. Hara, L. Santelj, Y. M. Goh, P. Pakhlov, H. Park, B. Bhuyan, J. Klucar, V. Savinov, C. H. Wang, S. Nishida, and A. Rostomyan
Subjects: Nuclear physics, Physics, Pseudoscalar, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Hadron, Perturbative QCD, 010306 general physics, 01 natural sciences
Abstract: Using samples of 102 million Υ(1S) and 158 million Υ(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to KS0K+π- and charge-conjugate (c.c.) states, π+π-π0π0, and π+π-π0, and to the two-body Vector-Pseudoscalar (K*(892)0K0+c.c., K*(892)-K ++c.c., ωπ0, and ρπ) final states. For the first time, signals are observed in the modes Υ(1S)→KS0K+π -+c.c., π+π-π0π0, and Υ(2S)→π+π-π0π0, and evidence is found for the modes Υ(1S)→π+π-π0, K*(892)0K0+c.c., and Υ(2S)→KS0K +π-+c.c. Branching fractions are measured for all the processes, while 90% confidence level upper limits on the branching fractions are also set for the modes with a statistical significance of less than 3σ. The ratios of the branching fractions of Υ(2S) and Υ(1S) decays into the same final state are used to test a perturbative QCD prediction for Okubo-Zweig-Iizuka-suppressed bottomonium decays. © 2013 American Physical Society.
Published: 2013

108. Evidence of a New Narrow Resonance Decaying toχc1γinB→χc1γK

Author: I. Adachi, S. E. Vahsen, T. Saito, R. Mussa, Yoshinobu Unno, Peter Kodys, E. Won, A. Zupanc, J. B. Kim, S. H. Lee, R. Seidl, M. Steder, A. M. Bakich, Kevin Varvell, G. Schnell, A. Ishikawa, P. Pakhlov, E. Panzenböck, H. Farhat, M. Shapkin, Y. Yamashita, Z. Drásal, B. Golob, D. Santel, M. Nakao, S. L. Olsen, P. Križan, W. S. Hou, H. Park, D. H. Kah, Y. Sakai, Y. Watanabe, J. Haba, V.M. Aulchenko, Y. Usov, E. Kato, O. Schneider, Andrey Sokolov, Mikhail Danilov, B.A. Shwartz, K. Senyo, Torben Ferber, E. Nakano, Y. B. Hsiung, Yongsun Kim, M. Z. Wang, C. Kiesling, M. Röhrken, A.S. Kuzmin, K. Chilikin, T. Kawasaki, S. Korpar, J. H. Kang, Marko Petrič, Jolanta Brodzicka, O. Nitoh, Y. Teramoto, C. Van Hulse, Y. S. Sohn, S. Nishida, K. Kinoshita, C. Schwanda, H. J. Hyun, P. Smerkol, V. Bhardwaj, G. Pakhlova, J. S. Lange, K. Dutta, M. Uchida, Jasvinder A. Singh, S. Ganguly, M. Starič, Yukinori Sato, Hiroaki Aihara, V. Chobanova, G. Bonvicini, James E. Fast, B. G. Cheon, J. G. Shiu, D. Liventsev, S. Yashchenko, Vladimir Zhulanov, G. B. Mohanty, A. Rostomyan, J. Dalseno, C. Z. Yuan, D. Matvienko, A. Vinokurova, R. Mizuk, Toru Iijima, A. Frey, R. Pestotnik, T. Julius, Chang Liu, M. E. Sevior, M. J. Kim, Y. Yook, Semen Eidelman, Phillip Urquijo, R. Chistov, M. Ritter, T. Kumita, R. Itoh, P. Krokovny, Rakesh Kumar, P. Wang, M. N. Wagner, V. Gaur, T. E. Browder, Tariq Aziz, Y. J. Kwon, V. Chekelian, D. M. Asner, E. Solovieva, G. Tatishvili, K. Cho, T. Sumiyoshi, T. A. Shibata, H. Miyata, M. Bischofberger, K. Miyabayashi, Z. Natkaniec, S. Uehara, E. Nedelkovska, N. K. Nisar, T. Hara, L. Santelj, B. Bhuyan, G. Varner, T. Sanuki, N. Gabyshev, A. Chen, Y. Hoshi, D. Epifanov, P. Lukin, D. Y. Kim, B. R. Ko, H. Hayashii, J. Klucar, Leo Piilonen, V. Savinov, O. Seon, Frank Simon, Y. M. Goh, C. H. Wang, T. K. Pedlar, A. Moll, K. Inami, D. Semmler, P. Vanhoefer, M. Sumihama, T. Aushev, V. Zhilich, J. Li, J. Yamaoka, Z. P. Zhang, Z. Q. Liu, A. Drutskoy, U. Tamponi, A.E. Bondar, K. Trabelsi, Kiyoshi Tanida, C. P. Shen, Y. Choi, Z. Doležal, K. T. Kim, R. Gillard, S. K. Choi, Yasuyuki Horii, D. Dutta, H. K. Park, M. Bračko, C. C. Zhang, M. Watanabe, S. Okuno, Bruce Yabsley, D. Cinabro, S. Ogawa, Jung-Hyun Kim, K. Sakai, H. Kichimi, T. Tsuboyama, M. Nayak, H. Sahoo, T. Uglov, Y. Li, T. Iwashita, A. Bala, S. Sandilya, and A. Bozek
Subjects: Physics, Particle physics, KEKB, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, General Physics and Astronomy, 010306 general physics, 01 natural sciences
Abstract: We report measurements of $B\ensuremath{\rightarrow}{\ensuremath{\chi}}_{c1}\ensuremath{\gamma}K$ and ${\ensuremath{\chi}}_{c2}\ensuremath{\gamma}K$ decays using $772\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ events collected at the $\ensuremath{\Upsilon}(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. Evidence of a new resonance in the ${\ensuremath{\chi}}_{c1}\ensuremath{\gamma}$ final state is found with a statistical significance of $3.8\ensuremath{\sigma}$. This state has a mass of $3823.1\ifmmode\pm\else\textpm\fi{}1.8(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.7(\mathrm{syst})\text{ }\text{ }\mathrm{MeV}/{c}^{2}$, a value that is consistent with theoretical expectations for the previously unseen $1^{3}D_{2}$ $c\overline{c}$ meson. We find no other narrow resonance and set upper limits on the branching fractions of the $X(3872)\ensuremath{\rightarrow}{\ensuremath{\chi}}_{c1}\ensuremath{\gamma}$ and ${\ensuremath{\chi}}_{c2}\ensuremath{\gamma}$ decays.
Published: 2013

109. Search forB→h(*)νν¯with the full BelleΥ(4S)data sample

Author: G. Schnell, T. Iijima, T. Saito, T. Kuhr, Andrey Sokolov, E. Nakano, J. H. Kang, Peter Kodys, C. Van Hulse, Y. Sakai, V.E. Shebalin, A. J. Schwartz, J. Haba, M. J. Kim, H. J. Kim, James E. Fast, Chang Liu, M. Starič, T. Kumita, M. Uchida, B.A. Shwartz, P. Kapusta, A. Ishikawa, A.L. Sibidanov, S. Okuno, P. Križan, Vladimir Zhulanov, Yoshinobu Unno, E. Solovieva, C. H. Wang, V. Chobanova, D. Liventsev, M. E. Sevior, Y. Usov, B. R. Ko, B. Kronenbitter, D. Dutta, Mikhail Danilov, M. Shapkin, G. Tatishvili, H. Farhat, S. Uno, C. Schwanda, K. T. Kim, R. Gillard, Y. Iwasaki, S. Ogawa, G. S. Varner, T. K. Pedlar, M. Röhrken, Z. P. Zhang, A. Moll, M. Sumihama, H. O. Kim, Y. J. Kwon, V. Chekelian, T. A. Shibata, H. Miyata, Y. Teramoto, T. Tsuboyama, M. Nayak, O. Schneider, R. Itoh, D. Santel, M. Watanabe, O. Seon, Frank Simon, Richard T. Kouzes, Th. Müller, H. K. Park, Y. Yamashita, S. Nishida, A.S. Kuzmin, P. Wang, R. Pestotnik, M. N. Wagner, K. Senyo, Y. S. Sohn, Y. Hoshi, S.I. Eidelman, V.N. Zhilich, Anze Zupanc, S. Sandilya, V. Gaur, M. Nakao, C. Kiesling, T. Sumiyoshi, S. Neubauer, H. Hayashii, G. Bonvicini, K. Miyabayashi, A.E. Bondar, K. Hayasaka, Marko Petrič, Sang Hoon Lee, K. M. Williams, Y. Watanabe, A. Chen, E. Nedelkovska, M. Bračko, H. J. Hyun, T. Sanuki, P. Smerkol, L. E. Piilonen, P. Krokovny, Z. Drásal, G. Pakhlova, C. Oswald, M. Heck, M. Z. Wang, K. Kinoshita, Z. Doležal, K. Cho, T. Kawasaki, A. M. Bakich, Z. Natkaniec, M. T. Prim, T. Ohshima, T. Julius, Y. Onuki, Po-Hsun Chen, N. Gabyshev, R. Chistov, Yueh-Feng Liu, D. Cinabro, I. Adachi, M. Feindt, D. Matvienko, P. Chang, H. Sahoo, Jung-Hyun Kim, D. M. Asner, J. B. Kim, S. L. Olsen, D. A. Epifanov, T. Uglov, Y. B. Hsiung, P. Pakhlov, Norihito Muramatsu, H. Park, A. Bozek, C. Ng, B. Bhuyan, T. E. Browder, J. Klucar, E. Kato, V. Bhardwaj, Tariq Aziz, Yang Li, Y. Choi, N. K. Nisar, T. Hara, L. Santelj, Y. M. Goh, G. B. Mohanty, O. Nitoh, Hiroaki Aihara, B. G. Cheon, K. Belous, S. Korpar, Yukinori Sato, J. G. Shiu, J. Dalseno, M. Ritter, E. Won, Hitoshi Yamamoto, B. Golob, J. S. Lange, S. Ganguly, O. Lutz, K. Trabelsi, C. P. Shen, W. S. Hou, V. Vorobyev, Jingxu Wang, and T. Aushev
Subjects: Physics, Hadronic decay, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Resonance, 01 natural sciences, law.invention, KEKB, law, 0103 physical sciences, B meson, 010306 general physics, Collider
Abstract: We report a search for the rare decays B -> h(*) nu nubar, where h(*) stands for K+, Ks0, K*+, K*0, pi+, pi0, rho+, rho0 and phi. The results are obtained from a 711 fb-1 data sample that contains 772 million BB pairs collected at the Y(4S) resonance with the Belle detector at the KEKB e+e- collider. We search for signal candidates by fully reconstructing a hadronic decay of the accompanying B meson and requiring a single h(*) meson left on the signal side. No significant signal is observed and we set upper limits on the branching fractions at 90% confidence level. The measurements of B+ -> K*+ nu nubar, B+ -> pi+ nu nubar, B0 -> pi0 nu nubar and B0 -> rho^0 nu nubar provide the world's currently most restrictive limits.
Published: 2013

110. Study ofe+e−→π+π−J/ψand Observation of a Charged Charmoniumlike State at Belle

Author: Mikhail Danilov, M. Röhrken, M. Starič, M. Bračko, R. Mussa, K. T. Kim, R. Gillard, A. Ishikawa, G. Bonvicini, M. J. Kim, J. S. Lange, Torben Ferber, D. Cinabro, M. Nakao, B.A. Shwartz, S. K. Choi, Yongsun Kim, Z. Natkaniec, S. Uno, T. Tsuboyama, M. Nayak, C. Schwanda, P. Križan, K. Dutta, Leo Piilonen, M. E. Sevior, W. Ostrowicz, J. Haba, K. Miyabayashi, T. E. Browder, P. Krokovny, Yasuyuki Horii, V. Gaur, C. C. Zhang, O. Seon, Frank Simon, K. Belous, R. Pestotnik, N. Gabyshev, P. Chang, E. Nedelkovska, Andrey Sokolov, A.E. Bondar, M. Steder, M. Watanabe, S. Korpar, Jolanta Brodzicka, S. E. Vahsen, A. Bozek, Kiyoshi Tanida, K. Cho, Jung-Hyun Kim, M. Sumihama, Y. Li, T. Aushev, V. Zhilich, M. Uchida, J. H. Kang, D. A. Epifanov, Marko Petrič, Yukinori Sato, Y. Choi, Z. Doležal, X. L. Wang, S. H. Lee, J. G. Shiu, G. Schnell, Y. Iwasaki, H. J. Hyun, P. Smerkol, Y. Onuki, K. Senyo, James E. Fast, A.L. Sibidanov, V. Chobanova, J. Dalseno, J. Li, J. Libby, Y. Yamashita, H. Nakazawa, P. Lukin, B. R. Ko, A. Chen, O. Schneider, A. Zupanc, Y. Yook, Z. Q. Liu, D. Santel, J. Yamaoka, G. Varner, V.M. Aulchenko, M. Ritter, B. G. Cheon, Y. Sakai, Y. Hoshi, H. J. Kim, A. Bala, Kevin Varvell, Semen Eidelman, D. Matvienko, Y. J. Kwon, T. K. Pedlar, A. Moll, Z. Drásal, R. Itoh, Y. Teramoto, Y. Watanabe, P. Wang, M. N. Wagner, O. Nitoh, T. Sumiyoshi, C. Kiesling, V. Chekelian, D. Dutta, H. K. Park, A. Drutskoy, E. Nakano, T. Kuhr, D. M. Asner, D. Semmler, H. Farhat, G. Tatishvili, S. Okuno, Z. P. Zhang, B. Golob, C. Van Hulse, E. Solovieva, K. Trabelsi, Hiroaki Aihara, C. Z. Yuan, C. P. Shen, S. Sandilya, T. Sanuki, G. Pakhlova, Bruce Yabsley, Y. S. Sohn, C. Oswald, T. Kawasaki, C. X. Liu, S. Yashchenko, Yoshinobu Unno, T. Julius, Po-Hsun Chen, R. Chistov, T. Saito, R. Seidl, Peter Kodys, M. Shapkin, E. Won, H. Sahoo, T. Uglov, Toru Iijima, S. Uehara, S. Ogawa, P. Pakhlov, H. Park, I. Adachi, J. B. Kim, B. Bhuyan, J. Klucar, A. M. Bakich, V. Savinov, C. H. Wang, S. Nishida, A. Rostomyan, W. S. Hou, V. Bhardwaj, M. Z. Wang, K. Kinoshita, U. Tamponi, Tariq Aziz, N. K. Nisar, A. Frey, Y. M. Goh, G. B. Mohanty, S. Ganguly, R. Mizuk, Y. Yusa, D. Joffe, P. Vanhoefer, V. Vorobyev, H. Hayashii, K. Inami, T. A. Shibata, H. Miyata, M. Bischofberger, K. Hayasaka, M. Feindt, S. L. Olsen, D. H. Kah, and Y. B. Hsiung
Subjects: Physics, 010308 nuclear & particles physics, Electron–positron annihilation, General Physics and Astronomy, Dalitz plot, Resonance, 01 natural sciences, Nuclear physics, 0103 physical sciences, Mass spectrum, Tetraquark, Z(4430), Atomic physics, 010306 general physics, Zc(3900), X(3872)
Abstract: The cross section for ee+ e- → π+ π- J/ψ between 3.8 and 5.5 GeV is measured with a 967 fb(-1) data sample collected by the Belle detector at or near the Υ(nS) (n = 1,2,…,5) resonances. The Y(4260) state is observed, and its resonance parameters are determined. In addition, an excess of π+ π- J/ψ production around 4 GeV is observed. This feature can be described by a Breit-Wigner parametrization with properties that are consistent with the Y(4008) state that was previously reported by Belle. In a study of Y(4260) → π+ π- J/ψ decays, a structure is observed in the M(π(±)J/ψ) mass spectrum with 5.2σ significance, with mass M = (3894.5 ± 6.6 ± 4.5) MeV/c2 and width Γ = (63 ± 24 ± 26) MeV/c2, where the errors are statistical and systematic, respectively. This structure can be interpreted as a new charged charmoniumlike state.
Published: 2013

111. Search for anH-Dibaryon with a Mass near2mΛinΥ(1S)andΥ(2S)Decays

Author: A. Ishikawa, A. Bay, P. Križan, C. Ng, Marko Petrič, K. Belous, H. Kichimi, S. Korpar, H. J. Hyun, P. Smerkol, P. Pakhlov, Andrey Sokolov, Yang Li, V.N. Zhilich, J. H. Kang, K. Nishimura, Y. Choi, D. Matvienko, James E. Fast, V. Gaur, N. K. Nisar, H. Sahoo, J. Libby, J. G. Shiu, J. Dalseno, M. Ritter, K. T. Kim, K. Miyabayashi, K. Trabelsi, K. Senyo, T. Ohshima, D. Epifanov, B. R. Ko, C. P. Shen, E. Nedelkovska, H. Park, A. Bozek, M. J. Kim, R. Gillard, B. G. Cheon, Y. M. Goh, S. K. Choi, G. Schnell, T. Sumiyoshi, Sang Hoon Lee, O. Seon, J. Li, M. Nakao, Bumho Kim, T. Uglov, B.A. Shwartz, H. K. Park, Y. Yamashita, Frank Simon, K. M. Williams, M. Uchida, P. Kapusta, S. Okuno, V. Chobanova, D. Liventsev, A. Chen, X. R. Li, A. Moll, M. Starič, T. Sanuki, S. Uehara, D. Semmler, M. Shapkin, M. E. Sevior, E. Kato, M. Sumihama, T. Kumita, K. Chilikin, Y. Teramoto, M. Bračko, G. S. Varner, G. Bonvicini, S. Nishida, D. Cinabro, M. D. Peters, Peter Kodys, J. S. Lange, S. Ganguly, Y. Sakai, P. Krokovny, R. Itoh, U. Tamponi, V.M. Aulchenko, K. Cho, Samo Stanič, Norihito Muramatsu, S. K. Kim, P. Wang, Jung-Hyun Kim, I. S. Cho, M. N. Wagner, Y. Iwasaki, Kiyoshi Tanida, G. B. Mohanty, Y. J. Kwon, E. Solovieva, Y. Watanabe, K. Inami, L. E. Piilonen, S. L. Olsen, Yongsun Kim, I. Adachi, O. Schneider, G. Pakhlova, C. H. Wang, D. H. Kah, Z. Doležal, Y. Usov, R. Mizuk, S. Uno, C. Schwanda, A.S. Kuzmin, W. S. Hou, T. Julius, Yoshinobu Unno, Y. B. Hsiung, R. Chistov, Hiroaki Aihara, T. A. Shibata, H. Miyata, Y. Hoshi, B. Bhuyan, S.I. Eidelman, V. Vorobyev, H. Hayashii, H. O. Kim, T. E. Browder, K. Hayasaka, J. Klucar, K. Kinoshita, V. Savinov, Sunmin Ryu, V.E. Shebalin, E. Won, E. Nakano, C. Van Hulse, D. M. Asner, G. Tatishvili, V. Chekelian, S. Esen, Anze Zupanc, H. Farhat, S. Sandilya, Y. S. Sohn, A. J. Schwartz, H. J. Kim, Richard T. Kouzes, and R. Mussa
Subjects: Physics, Nuclear physics, Particle physics, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, General Physics and Astronomy, 010306 general physics, Lambda, 01 natural sciences
Abstract: We report the results of a high-statistics search for $H$ dibaryon production in inclusive $\ensuremath{\Upsilon}(1S)$ and $\ensuremath{\Upsilon}(2S)$ decays. No indication of an $H$ dibaryon with a mass near the ${M}_{H}=2{m}_{\ensuremath{\Lambda}}$ threshold is seen in either the $H\ensuremath{\rightarrow}\ensuremath{\Lambda}p{\ensuremath{\pi}}^{\ensuremath{-}}$ or $\ensuremath{\Lambda}\ensuremath{\Lambda}$ decay channels and 90% confidence level branching-fraction upper limits are set that are between one and two orders of magnitude below the measured branching fractions for inclusive $\ensuremath{\Upsilon}(1S)$ and $\ensuremath{\Upsilon}(2S)$ decays to antideuterons. Since $\ensuremath{\Upsilon}(1S,2S)$ decays produce flavor-$SU(3)$-symmetric final states, these results put stringent constraints on $H$ dibaryon properties. The results are based on analyses of 102 million $\ensuremath{\Upsilon}(1S)$ and 158 million $\ensuremath{\Upsilon}(2S)$ events collected with the Belle detector at the KEKB ${e}^{+}{e}^{\ensuremath{-}}$ collider.
Published: 2013

112. Evidence for the decayB0→K+K−π0

Author: Torben Ferber, Yongsun Kim, G. Bonvicini, S. Uno, C. Schwanda, K. Dutta, Yukinori Sato, J. G. Shiu, H. Farhat, V. Chekelian, D. M. Asner, G. Schnell, I. Adachi, J. Dalseno, B. Golob, G. Tatishvili, M. Shapkin, W. S. Hou, V. Bhardwaj, K. Kinoshita, M. Uchida, U. Tamponi, Rakesh Kumar, S. Okuno, J. B. Kim, M. Ritter, A. M. Bakich, K. Cho, B. Bhuyan, Andrey Sokolov, A. Frey, J. H. Kang, M. J. Kim, V. Chobanova, T. A. Shibata, H. Miyata, M. Sumihama, J. Klucar, A.L. Sibidanov, K. Senyo, A. Bozek, Y. S. Sohn, S. Ogawa, D. Liventsev, Bruce Yabsley, P. Lukin, B. R. Ko, V. Savinov, D. Dutta, R. Sinha, G. Varner, Norihito Muramatsu, A. Drutskoy, T. Kumita, Marko Petrič, H. Hayashii, H. J. Hyun, Y. Hoshi, P. Smerkol, Semen Eidelman, P. Vanhoefer, C. H. Wang, R. Mussa, Y. Onuki, H. K. Park, Leo Piilonen, T. E. Browder, T. Sumiyoshi, Toru Iijima, B. G. Cheon, Y. Yamashita, A. Ishikawa, J. Haba, M. Steder, D. Matvienko, T. K. Pedlar, M. Nakao, S. E. Vahsen, P. Pakhlov, C. P. Shen, T. Sanuki, R. Itoh, D. Cinabro, H. Sahoo, P. Wang, M. N. Wagner, G. Pakhlova, M. E. Sevior, P. Križan, T. Uglov, K. Belous, S. Korpar, K. Miyabayashi, V.M. Aulchenko, M. Feindt, W. Ostrowicz, T. Aushev, H. Park, V. Zhilich, M. Bračko, S. Uehara, S. Yashchenko, P. Chang, T. Julius, O. Seon, Frank Simon, E. Nedelkovska, Po-Hsun Chen, V. Vorobyev, R. Chistov, Y. Iwasaki, Jung-Hyun Kim, S. Nishida, M. Watanabe, J. Li, T. Tsuboyama, D. H. Kah, D. Santel, M. Nayak, D. Semmler, M. Starič, A. Rostomyan, O. Schneider, E. Nakano, H. J. Kim, Chang Liu, C. Van Hulse, J. S. Lange, S. Ganguly, T. Kawasaki, Y. Teramoto, Jasvinder A. Singh, E. Solovieva, S. H. Lee, A. Zupanc, Kevin Varvell, Y. Sakai, Y. Watanabe, A. Bala, V. Gaur, Y. Li, T. Saito, S. Sandilya, Peter Kodys, E. Won, Yoshinobu Unno, C. Kiesling, Y. J. Kwon, N. Gabyshev, Tariq Aziz, K. M. Williams, N. K. Nisar, A. Chen, Y. M. Goh, G. B. Mohanty, Y. Yusa, Mikhail Danilov, O. Nitoh, M. Röhrken, Hiroaki Aihara, K. T. Kim, R. Gillard, S. K. Choi, Yasuyuki Horii, Y. Choi, Z. Doležal, X. L. Wang, R. Pestotnik, Z. Drásal, and J. Libby
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Resonance, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, B meson, 010306 general physics, Collider, Bar (unit)
Abstract: We report a search for charmless hadronic decays of neutral B mesons to the final state K+K-pi(0). The results are based on a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs, and was collected at the (sic)(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We find the first evidence for this decay with a significance of 3.5 standard deviations and measure its branching fraction as B(B-0 -> K+K-pi(0)) = [2.17 +/- 0.60(stat) +/- 0.24(syst) x 10(-6).
Published: 2013

113. Measurement of the inclusive semileptonic branching fractionB(Bs0→X−ℓ+νℓ)at Belle

Author: E. Nakano, A. Drutskoy, B. Bhuyan, T. E. Browder, C. Van Hulse, J. Klucar, H. O. Kim, S. Ogawa, K. Trabelsi, C. P. Shen, G. B. Mohanty, D. Cinabro, M. Uchida, P. Chang, R. Mizuk, O. Nitoh, V. Chobanova, D. Liventsev, T. Aushev, B. Golob, Z. P. Zhang, B.A. Shwartz, G. Tatishvili, Z. Q. Liu, C. Kiesling, G. S. Varner, C. C. Zhang, M. Bračko, K. Prothmann, R. Itoh, P. Wang, S. Ganguly, M. Watanabe, J. Li, A.L. Sibidanov, Richard T. Kouzes, S. Nishida, W. Ostrowicz, S. Okuno, G. Schnell, T. Iijima, Kevin Varvell, Y. Sakai, V. Chekelian, H. Farhat, Z. Drásal, Y. Iwasaki, Andrey Sokolov, Y. J. Kwon, L. E. Piilonen, H. Aihara, W. S. Hou, G. Pakhlova, T. Nozaki, S. Esen, T. Kuhr, Byung Gu Cheon, O. Schneider, M. E. Sevior, K. Belous, C. Liu, P. Pakhlov, C. H. Wang, A.E. Bondar, G. Bonvicini, Anze Zupanc, S. Korpar, J. H. Kang, Y. Teramoto, D. Dutta, C. Oswald, V. Gaur, Norihito Muramatsu, Yang Li, T. Kawasaki, Y. Choi, B. Kronenbitter, M. Nakao, K. Senyo, H. Hayashii, Z. Doležal, R. Louvot, Po-Hsun Chen, N. K. Nisar, L. Santelj, H. J. Kim, H. Park, Marko Petrič, A. Bozek, Yukinori Sato, Sunmin Ryu, E. Won, Jochen Dingfelder, P. Krokovny, H. J. Hyun, P. Smerkol, R. Chistov, Y. Unno, H. Sahoo, Y. Watanabe, J. G. Shiu, K. T. Kim, M. J. Kim, J. Dalseno, R. Gillard, E. Solovieva, T. Uglov, H. K. Park, K. Cho, Y. Yamashita, M. Z. Wang, K. Kinoshita, H. Yamamoto, M. Starič, P. Vanhoefer, S. K. Choi, Phillip Urquijo, S. Uehara, Y. S. Sohn, Y. M. Goh, V.N. Zhilich, J. Libby, T. Kumita, M. Ritter, D. Matvienko, James E. Fast, B. R. Ko, I. Adachi, T. Sumiyoshi, D. M. Asner, J. B. Kim, Sang Hoon Lee, T. K. Pedlar, T. Sanuki, K. M. Williams, A. Chen, E. Kato, K. Miyabayashi, T. Tsuboyama, A. Moll, S. Sandilya, Yueh-Feng Liu, M. Shapkin, Yasushi Nagasaka, E. Nedelkovska, M. Röhrken, K. Chilikin, M. T. Prim, V. Bhardwaj, R. Pestotnik, O. Seon, Frank Simon, A. J. Schwartz, J. Haba, O. Lutz, M. Rozanska, A. Ishikawa, P. Križan, T. A. Shibata, H. Miyata, Y. Hoshi, S.I. Eidelman, K. Hayasaka, Yasuyuki Horii, S. L. Olsen, D. H. Kah, A. M. Bakich, T. Ohshima, N. Gabyshev, K. Arinstein, Yongsun Kim, T. Saito, S. Uno, and C. Schwanda
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Branching (polymer chemistry), 01 natural sciences, Nuclear physics, KEKB, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Lepton
Abstract: We report a measurement of the inclusive semileptonic B0s branching fraction in a 121 fb⁻¹ data sample collected near the Υ(5S) resonance with the Belle detector at the KEKB asymmetric energy e⁺e⁻ collider. Events containing B⁰(*)sB¯¯¯⁰(*)s pairs are selected by reconstructing a tag side D⁺s and identifying a signal side lepton l⁺ (l=e, μ) that is required to have the same-sign charge to ensure that both originate from different B⁰s mesons. The B⁰s→X⁻l⁺νl branching fraction is extracted from the ratio of the measured yields of D⁺s mesons and D⁺sl⁺ pairs and the known production and branching fractions. The inclusive semileptonic branching fraction is measured to be [10.6±0.5(stat)±0.7(syst)]%.
Published: 2013

114. Search for heavy neutrinos at Belle

Author: H. K. Park, Kevin Varvell, Z. Drásal, Y. Watanabe, Pavel Krokovny, Y. Usov, A. Drutskoy, C. P. Shen, M. J. Kim, Y. Li, Marko Petrič, V. Zhilich, J. Li, H. J. Hyun, P. Smerkol, T. Kumita, E. Nakano, T. Julius, T. E. Browder, B. G. Cheon, R. Chistov, B. R. Ko, D. Matvienko, S. Uehara, S. Sandilya, C. Van Hulse, O. Nitoh, S. Nishida, S. Okuno, Samo Korpar, H. Farhat, Y. Iwasaki, G. Bonvicini, D. M. Asner, H. Miyata, G. Tatishvili, D. Dutta, B. Golob, Z. Natkaniec, T. Ohshima, O. Schneider, V. Gaur, M. Bračko, Meng Wang, M. Shapkin, G. Schnell, K. M. Williams, A. Chen, Y. Unno, D. Cinabro, K. Hayasaka, G. B. Mohanty, A.S. Kuzmin, S. Esen, C. C. Zhang, N. Gabyshev, Yukinori Sato, K. Cho, M. Watanabe, M. Röhrken, R. Mizuk, B. Bhuyan, T. Kuhr, Norihito Muramatsu, H. Hayashii, Y. S. Sohn, V. Chekelian, K. Senyo, H. O. Kim, J. Dalseno, J. Klucar, D. Epifanov, P. Chang, Rakesh Kumar, S. Ganguly, Toru Iijima, K. Itagaki, T. Tsuboyama, R. Pestotnik, S. L. Olsen, C. H. Wang, Yasushi Nagasaka, J. B. Kim, P. Pakhlov, T. K. Pedlar, A. Moll, M. Ritter, T. A. Shibata, W. S. Hou, I. Adachi, D. Santel, H. Park, D. H. Kah, B.A. Shwartz, A. Bozek, M. Sumihama, Hiroaki Aihara, K. Prothmann, Y. Ushiroda, E. Kato, A. M. Bakich, Y. J. Kwon, K. Miyabayashi, Andrey Sokolov, V. Vorobyev, Tagir Aushev, T. Sumiyoshi, N. K. Nisar, L. Santelj, C. Kiesling, Bruce Yabsley, Y. M. Goh, K. Belous, Chang Liu, M. E. Sevior, J. H. Kang, Y. Yamashita, S. Uno, V.M. Aulchenko, Yueh-Feng Liu, W. Ostrowicz, J. Libby, Sunmin Ryu, M. Starič, J. G. Shiu, James E. Fast, J. Haba, Hitoshi Yamamoto, P. Vanhoefer, Semen Eidelman, Yongsun Kim, C. Schwanda, T. Saito, A.E. Bondar, R. Louvot, Y. Choi, Z. Doležal, Zhenyu Zhang, K. T. Kim, R. Gillard, S. K. Choi, Yasuyuki Horii, Z. Q. Liu, A.L. Sibidanov, E. Won, V. Chobanova, G. Varner, D. Liventsev, K. Arinstein, Y. Hoshi, S. H. Lee, R. Itoh, P. Wang, M. N. Wagner, Y. Sakai, C. Oswald, T. Kawasaki, H. J. Kim, A. Ishikawa, A. Bay, T. Nozaki, M. Nakao, Y. Teramoto, P. Križan, E. Solovieva, Leo Piilonen, O. Seon, Frank Simon, H. Sahoo, T. Uglov, Richard T. Kouzes, S. Ogawa, M. Uchida, G. Pakhlova, and A. Zupanc
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, Electron–positron annihilation, High Energy Physics::Phenomenology, FOS: Physical sciences, Resonance, High Energy Physics - Experiment, law.invention, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), KEKB, law, High Energy Physics::Experiment, Neutrino, Collider, Lepton
Abstract: We report on a search for heavy neutrinos in B-meson decays. The results are obtained using a data sample that contains 772x10^6 BB-bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. No signal is observed and upper limits are set on mixing of heavy neutrinos with left-handed neutrinos of the Standard Model in the mass range 0.5 - 5.0 GeV/c^2., Comment: 12 pages, 5 figures, published in PRD (RC); Erratum: 2 pages, 3 figures; upper limit calculation revised
Published: 2013

115. Study of e+ e- → π+ π- J/ψ and observation of a charged charmoniumlike state at Belle

Author: Z Q, Liu, C P, Shen, C Z, Yuan, I, Adachi, H, Aihara, D M, Asner, V, Aulchenko, T, Aushev, T, Aziz, A M, Bakich, A, Bala, K, Belous, V, Bhardwaj, B, Bhuyan, M, Bischofberger, A, Bondar, G, Bonvicini, A, Bozek, M, Bračko, J, Brodzicka, T E, Browder, P, Chang, V, Chekelian, A, Chen, P, Chen, B G, Cheon, R, Chistov, K, Cho, V, Chobanova, S-K, Choi, Y, Choi, D, Cinabro, J, Dalseno, M, Danilov, Z, Doležal, Z, Drásal, A, Drutskoy, D, Dutta, K, Dutta, S, Eidelman, D, Epifanov, H, Farhat, J E, Fast, M, Feindt, T, Ferber, A, Frey, V, Gaur, N, Gabyshev, S, Ganguly, R, Gillard, Y M, Goh, B, Golob, J, Haba, K, Hayasaka, H, Hayashii, Y, Horii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, Y, Iwasaki, D, Joffe, T, Julius, D H, Kah, J H, Kang, T, Kawasaki, C, Kiesling, H J, Kim, J B, Kim, J H, Kim, K T, Kim, M J, Kim, Y J, Kim, K, Kinoshita, J, Klucar, B R, Ko, P, Kodyš, S, Korpar, P, Križan, P, Krokovny, T, Kuhr, Y-J, Kwon, J S, Lange, S-H, Lee, J, Li, Y, Li, J, Libby, C, Liu, P, Lukin, D, Matvienko, K, Miyabayashi, H, Miyata, R, Mizuk, G B, Mohanty, A, Moll, R, Mussa, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, M, Nayak, E, Nedelkovska, N K, Nisar, S, Nishida, O, Nitoh, S, Ogawa, S, Okuno, S L, Olsen, Y, Onuki, W, Ostrowicz, C, Oswald, P, Pakhlov, G, Pakhlova, H, Park, H K, Park, T K, Pedlar, R, Pestotnik, M, Petrič, L E, Piilonen, M, Ritter, M, Röhrken, A, Rostomyan, H, Sahoo, T, Saito, Y, Sakai, S, Sandilya, D, Santel, T, Sanuki, Y, Sato, V, Savinov, O, Schneider, G, Schnell, C, Schwanda, R, Seidl, D, Semmler, K, Senyo, O, Seon, M E, Sevior, M, Shapkin, T-A, Shibata, J-G, Shiu, B, Shwartz, A, Sibidanov, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, M, Starič, M, Steder, M, Sumihama, T, Sumiyoshi, U, Tamponi, K, Tanida, G, Tatishvili, Y, Teramoto, K, Trabelsi, T, Tsuboyama, M, Uchida, S, Uehara, T, Uglov, Y, Unno, S, Uno, S E, Vahsen, C, Van Hulse, P, Vanhoefer, G, Varner, K E, Varvell, V, Vorobyev, M N, Wagner, C H, Wang, M-Z, Wang, P, Wang, X L, Wang, M, Watanabe, Y, Watanabe, E, Won, B D, Yabsley, J, Yamaoka, Y, Yamashita, S, Yashchenko, Y, Yook, Y, Yusa, C C, Zhang, Z P, Zhang, V, Zhilich, and A, Zupanc
Abstract: The cross section for ee+ e- → π+ π- J/ψ between 3.8 and 5.5 GeV is measured with a 967 fb(-1) data sample collected by the Belle detector at or near the Υ(nS) (n = 1,2,…,5) resonances. The Y(4260) state is observed, and its resonance parameters are determined. In addition, an excess of π+ π- J/ψ production around 4 GeV is observed. This feature can be described by a Breit-Wigner parametrization with properties that are consistent with the Y(4008) state that was previously reported by Belle. In a study of Y(4260) → π+ π- J/ψ decays, a structure is observed in the M(π(±)J/ψ) mass spectrum with 5.2σ significance, with mass M = (3894.5 ± 6.6 ± 4.5) MeV/c2 and width Γ = (63 ± 24 ± 26) MeV/c2, where the errors are statistical and systematic, respectively. This structure can be interpreted as a new charged charmoniumlike state.
Published: 2013

116. Evidence forB−→τ−ν¯τwith a Hadronic Tagging Method Using the Full Data Sample of Belle

Author: D. M. Asner, Yukinori Sato, G. Tatishvili, B. R. Ko, Y. Iwasaki, J. Dalseno, S. Nishida, S. H. Lee, Phillip Urquijo, T. A. Shibata, S. Uno, Sunmin Ryu, O. Schneider, H. Hayashii, S. Esen, A.S. Kuzmin, Y. Sakai, D. Cinabro, Anze Zupanc, Hitoshi Yamamoto, P. Vanhoefer, Pavel Krokovny, Y. Teramoto, D. Liventsev, Marko Petrič, Jung-Hyun Kim, P. Smerkol, A. Drutskoy, G. Schnell, E. Solovieva, Leo Piilonen, O. Seon, Frank Simon, K. Miyabayashi, M. Barrett, B. Bhuyan, R. Itoh, K. Trabelsi, B. G. Cheon, D. Matvienko, V. Vorobyev, M. J. Kim, S. Uehara, T. Iwashita, P. Wang, T. Kuhr, J. Klucar, I. S. Cho, E. Nakano, Y. S. Sohn, Takuya Higuchi, C. Van Hulse, B. Golob, A. Ishikawa, A.L. Sibidanov, V. Gaur, M. Shapkin, M. N. Wagner, B. Shwartz, S. Okuno, Samo Korpar, C. P. Shen, K. Hara, H. Farhat, P. Pakhlov, Bruce Yabsley, T. Kumita, T. E. Browder, O. Nitoh, K. Inami, T. Nozaki, M. Nakao, J. S. Lange, S. Ganguly, V. Zhilich, C. W. Park, P. Križan, J. Libby, I. Adachi, Jochen Dingfelder, A. Bozek, C. H. Wang, Kevin Varvell, J. Li, D. Dutta, H. K. Park, D. Santel, G. Varner, Y. Hoshi, A. M. Bakich, C. Oswald, T. Kawasaki, M. T. Prim, Hiroaki Aihara, T. Mori, Y. Usov, K. M. Williams, T. Julius, Po-Hsun Chen, A. Chen, Y. Unno, S. Sandilya, Norihito Muramatsu, M. Z. Wang, K. Kinoshita, J. Haba, Toru Iijima, T. Sumiyoshi, Z. P. Zhang, M. Röhrken, K. Chilikin, H. O. Kim, H. Nakazawa, V. Bhardwaj, H. Ozaki, T. Sanuki, Yongsun Kim, A. J. Schwartz, V. Chekelian, Peter Kodys, Richard T. Kouzes, Tariq Aziz, C. Schwanda, Yang Li, R. Pestotnik, Chang Liu, E. Won, N. K. Nisar, Z. Drásal, T. Hara, A. Frey, K. Sakai, M. Uchida, H. Sahoo, G. Pakhlova, Y. M. Goh, T. Tsuboyama, M. Nayak, G. B. Mohanty, M. Watanabe, R. Mizuk, Y. Yusa, Vladimir Zhulanov, M. E. Sevior, Andrey Sokolov, B. Kronenbitter, J. H. Kang, K. Nishimura, D. Epifanov, T. K. Pedlar, A. Moll, Semen Eidelman, G. Bonvicini, K. Cho, K. T. Kim, R. Gillard, C. Ng, K. Senyo, Yasuyuki Horii, A.E. Bondar, Y. Choi, Z. Doležal, Z. Q. Liu, M. Starič, Y. Watanabe, H. Miyata, J. G. Shiu, K. Hayasaka, S. L. Olsen, M. Sumihama, Y. Ushiroda, Tagir Aushev, Y. Yamashita, Yueh-Feng Liu, Z. Natkaniec, T. Ohshima, N. Gabyshev, C. Kiesling, M. Bračko, J. B. Kim, and Y. J. Kwon
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, General Physics and Astronomy, 01 natural sciences, Measure (mathematics), law.invention, Nuclear physics, KEKB, Recoil, law, 0103 physical sciences, B meson, 010306 general physics, Collider
Abstract: We measure the branching fraction of B- → τ- ν(τ) using the full Υ(4S) data sample containing 772×10(6) BB pairs collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. Events with BB pairs are tagged by reconstructing one of the B mesons decaying into hadronic final states, and B- → τ- ν(τ) candidates are detected in the recoil. We find evidence for B- → τ- ν(τ) with a significance of 3.0 standard deviations including systematic errors and measure a branching fraction B(B- → τ- ν(τ))=[0.72(-0.25)(+0.27)(stat)±0.11(syst)]×10(-4).
Published: 2013

117. Observation ofψ(4040)andψ(4160)decay intoηJ/ψ

Author: J. H. Kang, J. Libby, Kiyoshi Tanida, H. Sahoo, S. Ogawa, James E. Fast, Z. Doležal, O. Nitoh, V. Gaur, Tariq Aziz, B. Golob, K. Trabelsi, C. P. Shen, O. Schneider, X. L. Wang, V.N. Zhilich, Marko Petrič, J. S. Lange, Hiroaki Aihara, P. Lukin, B. R. Ko, M. Nakao, Y. Choi, Chang-Zheng Yuan, O. Brovchenko, H. J. Hyun, P. Smerkol, Jingxu Wang, T. Aushev, S. McOnie, T. K. Pedlar, A. Moll, R. Mussa, W. S. Hou, M. Uchida, J. Li, Y. M. Goh, A. Ishikawa, P. Kapusta, Peter Kodys, S. Okuno, R. Gillard, M. J. Kim, G. B. Mohanty, S. Sandilya, H. J. Kim, M. Starič, P. Križan, D. M. Asner, G. S. Varner, S. K. Choi, G. Bonvicini, Y. Ban, E. Won, T. Kumita, Chang Liu, D. Santel, Z. P. Zhang, H. O. Kim, Y. Teramoto, R. Mizuk, A.L. Sibidanov, K. Senyo, P. Wang, G. Tatishvili, P. Krokovny, P. Vanhoefer, Y. L. Han, T. A. Shibata, H. Miyata, Y. Hoshi, S.I. Eidelman, K. Cho, Richard T. Kouzes, H. Farhat, K. Prothmann, Y. Sakai, Z. Q. Liu, C. H. Wang, S. Esen, Yoshinobu Unno, M. Iwabuchi, L. E. Piilonen, Anze Zupanc, M. E. Sevior, G. Pakhlova, A. M. Bakich, E. Solovieva, T. Ohshima, Y. Usov, Y. S. Sohn, Jung-Hyun Kim, S. L. Olsen, C. C. Zhang, H. Park, Po-Hsun Chen, A. Bozek, V.M. Aulchenko, Y. Yamashita, Frank Simon, T. Sumiyoshi, S. Nishida, Samo Stanič, Sang Hoon Lee, T. Sanuki, M. Bračko, Yongsun Kim, B. Bhuyan, T. E. Browder, S. Uno, J. Klucar, C. Schwanda, Jolanta Brodzicka, J. G. Shiu, J. Dalseno, H. Hayashii, K. Inami, M. Z. Wang, K. Kinoshita, M. Shapkin, R. Pestotnik, B. G. Cheon, K. M. Williams, Z. Drásal, Norihito Muramatsu, I. Adachi, J. B. Kim, and S. Uehara
Subjects: Combinatorics, Physics, Nuclear and High Energy Physics, Particle physics, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Hadron, High Energy Physics::Experiment, Production (computer science), 010306 general physics, 01 natural sciences
Abstract: The cross section for ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\eta}J/\ensuremath{\psi}$ between $\sqrt{s}=3.8\text{ }\text{ }\mathrm{GeV}$ and 5.3 GeV is measured via initial state radiation using $980\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data on and around the $\ensuremath{\Upsilon}(nS)(n=1,2,3,4,5)$ resonances collected with the Belle detector at KEKB. Two resonant structures at the $\ensuremath{\psi}(4040)$ and $\ensuremath{\psi}(4160)$ are observed in the $\ensuremath{\eta}J/\ensuremath{\psi}$ invariant mass distribution. Fitting the mass spectrum with the coherent sum of two Breit-Wigner functions, one obtains $\mathcal{B}(\ensuremath{\psi}(4040)\ensuremath{\rightarrow}\ensuremath{\eta}J/\ensuremath{\psi})\ifmmode\cdot\else\textperiodcentered\fi{}{\ensuremath{\Gamma}}_{{e}^{+}{e}^{\ensuremath{-}}}^{\ensuremath{\psi}(4040)}=(4.8\ifmmode\pm\else\textpm\fi{}0.9\ifmmode\pm\else\textpm\fi{}1.5)\text{ }\text{ }\mathrm{eV}$ and $\mathcal{B}(\ensuremath{\psi}(4160)\ensuremath{\rightarrow}\ensuremath{\eta}J/\ensuremath{\psi})\ifmmode\cdot\else\textperiodcentered\fi{}{\ensuremath{\Gamma}}_{{e}^{+}{e}^{\ensuremath{-}}}^{\ensuremath{\psi}(4160)}=(4.0\ifmmode\pm\else\textpm\fi{}0.8\ifmmode\pm\else\textpm\fi{}1.4)\text{ }\text{ }\mathrm{eV}$ for one solution and $\mathcal{B}(\ensuremath{\psi}(4040)\ensuremath{\rightarrow}\ensuremath{\eta}J/\ensuremath{\psi})\ifmmode\cdot\else\textperiodcentered\fi{}{\ensuremath{\Gamma}}_{{e}^{+}{e}^{\ensuremath{-}}}^{\ensuremath{\psi}(4040)}=(11.2\ifmmode\pm\else\textpm\fi{}1.3\ifmmode\pm\else\textpm\fi{}2.1)\text{ }\text{ }\mathrm{eV}$ and $\mathcal{B}(\ensuremath{\psi}(4160)\ensuremath{\rightarrow}\ensuremath{\eta}J/\ensuremath{\psi})\ifmmode\cdot\else\textperiodcentered\fi{}{\ensuremath{\Gamma}}_{{e}^{+}{e}^{\ensuremath{-}}}^{\ensuremath{\psi}(4160)}=(13.8\ifmmode\pm\else\textpm\fi{}1.3\ifmmode\pm\else\textpm\fi{}2.1)\text{ }\text{ }\mathrm{eV}$ for the other solution, where the first errors are statistical and the second are systematic. This is the first measurement of this hadronic transition mode of these two states, and the partial widths to $\ensuremath{\eta}J/\ensuremath{\psi}$ are found to be about 1 MeV. There is no evidence for the $Y(4260)$, $Y(4360)$, $\ensuremath{\psi}(4415)$, or $Y(4660)$ in the $\ensuremath{\eta}J/\ensuremath{\psi}$ final state, and upper limits of their production rates in ${e}^{+}{e}^{\ensuremath{-}}$ annihilation are determined.
Published: 2013

118. Measurements of branching fractions and directCPasymmetries forB→Kπ,B→ππandB→KKdecays

Author: E. Nakano, M. Starič, Leo Piilonen, W. S. Hou, G. Bonvicini, Peter Kodys, J. G. Shiu, V. Zhilich, Frank Simon, P. Kapusta, B Bhuyan, A. Vinokurova, Y. B. Hsiung, O. Schneider, M. Uchida, R. Gillard, E. Won, G. Pakhlova, S. Sandilya, D. M. Asner, H. Miyata, M. Bischofberger, A.S. Kuzmin, V. Chobanova, K. Cho, K. Hayasaka, G. Tatishvili, V. Chekelian, R. Mizuk, Y. Teramoto, Tagir Aushev, H. Sahoo, Hiroaki Aihara, Yasuyuki Horii, Bruce Yabsley, T. Y. Wu, V. Gaur, H. K. Park, M. J. Kim, Y. Yamashita, M. Shapkin, A.E. Bondar, K. Miyabayashi, E. Solovieva, Pavel Krokovny, M. Röhrken, M. Bračko, T. Kumita, T. K. Pedlar, B. Golob, D. Santel, V.M. Aulchenko, Yueh-Feng Liu, Y. Li, T. E. Browder, S. H. Lee, C. Ng, K. Senyo, P. Chang, Tariq Aziz, Anze Zupanc, T. Mori, A. Bozek, Y. Choi, Z. Doležal, K. Trabelsi, T. Kuhr, Y. Sakai, S. Ogawa, Jung-Hyun Kim, C. P. Shen, S. Uno, A.L. Sibidanov, Marko Petrič, Y. S. Sohn, Rakesh Kumar, H. J. Hyun, P. Smerkol, A. Ishikawa, Sunmin Ryu, Y. M. Goh, M. Nakao, Chang Liu, M. Sumihama, B. G. Cheon, P. Križan, G. B. Mohanty, P. Vanhoefer, J. Haba, G. Varner, B. R. Ko, Andrey Sokolov, R. Pestotnik, Samo Korpar, J. Libby, H. Farhat, Y. Chao, Y. Hoshi, J. H. Kang, K. Nishimura, T. Kawasaki, H. J. Kim, Y. J. Kwon, Z. P. Zhang, H. Hayashii, B.A. Shwartz, H. O. Kim, James E. Fast, T. Julius, M. Watanabe, Po-Hsun Chen, Semen Eidelman, M. T. Prim, R. Chistov, V.E. Shebalin, I. S. Cho, T. Ohshima, M. Z. Wang, K. Kinoshita, O. Nitoh, C. H. Wang, D. Dutta, Yongsun Kim, A. Frey, C. Schwanda, Y. T. Duh, Vladimir Zhulanov, M. E. Sevior, K. M. Williams, T. Sumiyoshi, A. Chen, Y. Unno, Norihito Muramatsu, H. Park, Toru Iijima, A. Drutskoy, I. Adachi, A. M. Bakich, S. Uehara, S. Okuno, S. Nishida, Yukinori Sato, M. Ritter, T. A. Shibata, and Stephen Lars Olsen
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Crystallography, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, 010306 general physics, 01 natural sciences
Abstract: We report measurements of the branching fractions and direct $CP$ asymmetries (${\mathcal{A}}_{CP}$) for $B\ensuremath{\rightarrow}K\ensuremath{\pi}$, $\ensuremath{\pi}\ensuremath{\pi}$ and $KK$ decays (but not ${\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$) based on the final data sample of $772\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected at the $\ensuremath{\Upsilon}(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. We set a 90% confidence-level upper limit for ${K}^{+}{K}^{\ensuremath{-}}$ at $2.0\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}7}$; all other decays are observed with branching fractions ranging from ${10}^{\ensuremath{-}6}$ to ${10}^{\ensuremath{-}5}$. In the ${B}^{0}/{\overline{B}}^{0}\ensuremath{\rightarrow}{K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{\ensuremath{\mp}}$ mode, we confirm Belle's previously reported large ${\mathcal{A}}_{CP}$ with a value of $\ensuremath{-}0.069\ifmmode\pm\else\textpm\fi{}0.014\ifmmode\pm\else\textpm\fi{}0.007$ and a significance of $4.4\ensuremath{\sigma}$. For all other flavor-specific modes, we find ${\mathcal{A}}_{CP}$ values consistent with zero, including ${\mathcal{A}}_{CP}({K}^{+}{\ensuremath{\pi}}^{0})=+0.043\ifmmode\pm\else\textpm\fi{}0.024\ifmmode\pm\else\textpm\fi{}0.007$ with $1.8\ensuremath{\sigma}$ significance. The difference of $CP$ asymmetry between ${B}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}{K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{0}$ and ${B}^{0}/{\overline{B}}^{0}\ensuremath{\rightarrow}{K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{\ensuremath{\mp}}$ is found to be $\ensuremath{\Delta}{\mathcal{A}}_{K\ensuremath{\pi}}\ensuremath{\equiv}{\mathcal{A}}_{CP}({K}^{+}{\ensuremath{\pi}}^{0})\ensuremath{-}{\mathcal{A}}_{CP}({K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})=+0.112\ifmmode\pm\else\textpm\fi{}0.027\ifmmode\pm\else\textpm\fi{}0.007$ with $4.0\ensuremath{\sigma}$ significance. We also calculate the ratios of partial widths for the $B\ensuremath{\rightarrow}K\ensuremath{\pi}$ decays. Using our results, we test the validity of the sum rule ${\mathcal{A}}_{CP}({K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})+{\mathcal{A}}_{CP}({K}^{0}{\ensuremath{\pi}}^{+})\frac{\ensuremath{\Gamma}({K}^{0}{\ensuremath{\pi}}^{+})}{\ensuremath{\Gamma}({K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})}\ensuremath{-}{\mathcal{A}}_{CP}({K}^{+}{\ensuremath{\pi}}^{0})\frac{2\ensuremath{\Gamma}({K}^{+}{\ensuremath{\pi}}^{0})}{\ensuremath{\Gamma}({K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})}\ensuremath{-}{\mathcal{A}}_{CP}({K}^{0}{\ensuremath{\pi}}^{0})\frac{2\ensuremath{\Gamma}({K}^{0}{\ensuremath{\pi}}^{0})}{\ensuremath{\Gamma}({K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})}=0$ and obtain a sum of $\ensuremath{-}0.270\ifmmode\pm\else\textpm\fi{}0.132\ifmmode\pm\else\textpm\fi{}0.060$ with $1.9\ensuremath{\sigma}$ significance.
Published: 2013

119. Search for an H-dibaryon with a mass near 2mΛ in Υ(1S) and Υ(2S) decays

Author: B H, Kim, S L, Olsen, I, Adachi, H, Aihara, D M, Asner, V, Aulchenko, A, Bay, K, Belous, B, Bhuyan, G, Bonvicini, A, Bozek, M, Bračko, T E, Browder, V, Chekelian, A, Chen, B G, Cheon, K, Chilikin, R, Chistov, I-S, Cho, K, Cho, V, Chobanova, S-K, Choi, Y, Choi, D, Cinabro, J, Dalseno, Z, Doležal, S, Eidelman, D, Epifanov, S, Esen, H, Farhat, J E, Fast, V, Gaur, S, Ganguly, R, Gillard, Y M, Goh, K, Hayasaka, H, Hayashii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, K, Inami, A, Ishikawa, R, Itoh, Y, Iwasaki, T, Julius, D H, Kah, J H, Kang, P, Kapusta, E, Kato, H, Kichimi, H J, Kim, H O, Kim, J H, Kim, K T, Kim, M J, Kim, S K, Kim, Y J, Kim, K, Kinoshita, J, Klucar, B R, Ko, P, Kodyš, S, Korpar, R T, Kouzes, P, Križan, P, Krokovny, T, Kumita, A, Kuzmin, Y-J, Kwon, J S, Lange, S-H, Lee, J, Li, X, Li, Y, Li, J, Libby, D, Liventsev, D, Matvienko, K, Miyabayashi, H, Miyata, R, Mizuk, G B, Mohanty, A, Moll, N, Muramatsu, R, Mussa, E, Nakano, M, Nakao, E, Nedelkovska, C, Ng, N K, Nisar, S, Nishida, K, Nishimura, T, Ohshima, S, Okuno, P, Pakhlov, G, Pakhlova, H, Park, H K, Park, M, Peters, M, Petrič, L E, Piilonen, M, Ritter, S, Ryu, H, Sahoo, Y, Sakai, S, Sandilya, T, Sanuki, V, Savinov, O, Schneider, G, Schnell, C, Schwanda, A J, Schwartz, D, Semmler, K, Senyo, O, Seon, M E, Sevior, M, Shapkin, V, Shebalin, C P, Shen, T-A, Shibata, J-G, Shiu, B, Shwartz, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, S, Stanič, M, Starič, M, Sumihama, T, Sumiyoshi, U, Tamponi, K, Tanida, G, Tatishvili, Y, Teramoto, K, Trabelsi, M, Uchida, S, Uehara, T, Uglov, Y, Unno, S, Uno, Y, Usov, C, Van Hulse, G, Varner, V, Vorobyev, M N, Wagner, C H, Wang, P, Wang, Y, Watanabe, K M, Williams, E, Won, Y, Yamashita, V, Zhilich, and A, Zupanc
Abstract: We report the results of a high-statistics search for H dibaryon production in inclusive Υ(1S) and Υ(2S) decays. No indication of an H dibaryon with a mass near the M(H)=2m(Λ) threshold is seen in either the H→Λpπ(-) or ΛΛ decay channels and 90% confidence level branching-fraction upper limits are set that are between one and two orders of magnitude below the measured branching fractions for inclusive Υ(1S) and Υ(2S) decays to antideuterons. Since Υ(1S,2S) decays produce flavor-SU(3)-symmetric final states, these results put stringent constraints on H dibaryon properties. The results are based on analyses of 102 million Υ(1S) and 158 million Υ(2S) events collected with the Belle detector at the KEKB e(+)e(-) collider.
Published: 2013

120. Precise measurement of the branching fractions forBs0→Ds()+Ds()−and first measurement of theDs+Ds−polarization usinge+e−collisions

Author: M. J. Kim, Y. Sakai, M. Starič, Pavel Krokovny, T. Kumita, T. Kuhr, T. E. Browder, K. M. Williams, K. Trabelsi, M. Uchida, A. Chen, Peter Kodys, S. E. Vahsen, M. Shapkin, V. Gaur, O. Nitoh, D. Liventsev, M. Röhrken, K. Chilikin, S. Nishida, V. Chekelian, M. Nakao, Y. Iwasaki, Y. J. Kwon, E. Solovieva, G. S. Varner, D. M. Asner, Hiroaki Aihara, J. Li, O. Schneider, Stephen Lars Olsen, S. McOnie, J. Yamaoka, R. Itoh, G. Tatishvili, P. Wang, R. Mizuk, R. Pestotnik, T. Uglov, A. Ishikawa, C. W. Park, Yoshinobu Unno, P. Križan, A. Bozek, W. S. Hou, Y. Choi, Y. Li, T. Hara, L. Santelj, Frank Simon, Andrey Sokolov, T. Kawasaki, H. Park, T. Iwashita, J. H. Kang, A.L. Sibidanov, S. Esen, K. Nishimura, S. Koblitz, Sunmin Ryu, M. Feindt, E. Won, A. Drutskoy, Z. P. Zhang, H. O. Kim, P. Vanhoefer, Marko Petrič, Richard T. Kouzes, H. J. Hyun, Y. B. Hsiung, P. Smerkol, M. Danilov, Semen Eidelman, Norihito Muramatsu, Byung Gu Cheon, T. A. Shibata, H. Miyata, D. Santel, Y. Hoshi, K. Senyo, Toru Iijima, S. Uehara, B.A. Shwartz, B. R. Ko, T. K. Pedlar, A. Moll, Yongsun Kim, S. Uno, C. Schwanda, Vladimir Zhulanov, M. E. Sevior, K. Cho, A. M. Bakich, R. Louvot, I. S. Cho, Z. Doležal, C. H. Wang, H. K. Park, K. T. Kim, Y. Yamashita, S. Okuno, M. Iwabuchi, L. E. Piilonen, G. Pakhlova, Yasuyuki Horii, B Bhuyan, Y. S. Sohn, V.N. Zhilich, C. Ng, T. Julius, Po-Hsun Chen, T. Tsuboyama, Y. Teramoto, R. Chistov, H. Nakazawa, J. Libby, Z. Natkaniec, T. Ohshima, D. Mohapatra, T. Sumiyoshi, A. J. Schwartz, Sang Hoon Lee, Y. Watanabe, Chang Liu, T. Sanuki, Samo Stanič, J. Haba, C. Kiesling, Tagir Aushev, M. Z. Wang, K. Kinoshita, Y. Onuki, M. Bračko, Yueh-Feng Liu, H. Hayashii, K. Belous, S. Korpar, Yukinori Sato, J. G. Shiu, and J. Dalseno
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Analytical chemistry, Polarization (waves), Branching (polymer chemistry), 01 natural sciences, Belle experiment, Nuclear magnetic resonance, 0103 physical sciences, CP violation, 010306 general physics
Abstract: We have made a precise measurement of the absolute branching fractions of B-s(0) -> D-s(()*()+) D-s(()*()-) decays using 121.4 fb(-1) of data recorded by the Belle experiment running at the Upsilon(5S) resonance. The results are B(B-s(0) -> D-s(+) D-s(-)) = 0.58(-0.09)(+0.11) +/- 0.13)%, B(B-s(0) -> D-s*(+/-) D-s(-/+)) = (1.76(-0.22)(+0.23) +/- 0.40)%, and B(B-s(0) -> D-s*(+) D-s*(-)) = (1.98(-0.31-0.50)(+0.33+0.52))%; the sum is B(B-s(0) -> D-s(()*()+) D-s(()*()-)) = (4.32(-0.39-1.03)(+0.42+1.04))%. Assuming B-s(0) -> D-s(()*()+) D-s(()*()-) saturates decays to CP-even final states, the branching fraction constrains the ratio Delta Gamma(s)/cos phi(12), where Delta Gamma(s) is the difference in widths between the two B-s-(B) over bar (s) mass eigenstates, and phi(12) is the CP-violating phase in B-s-(B) over bar (s) mixing. We also measure for the first time the longitudinal polarization fraction of B-s(0) -> D-s*(+) D-s*(-); the result is 0.06(-0.17)(+0.18) +/- 0.03. DOI: 10.1103/PhysRevD.87.031101
Published: 2013

121. Search for CP Violation in the Decay ${D^{+}}\to K_S^0{K^{+}}$

Author: A. Zupanc, A. Ishikawa, O. Nitoh, P. Križan, T. Aushev, G. Schnell, Y. Sakai, H. Hayashii, G. Tatishvili, M. Uchida, M. Shapkin, T. Iijima, M. E. Sevior, C. Liu, D. Cinabro, J. H. Kang, K. T. Kim, R. Gillard, M. Röhrken, K. Chilikin, G. Bonvicini, K. Nishimura, James E. Fast, Sanmay Ganguly, S. Esen, N. Nellikunnummel, E. Solovieva, B. G. Cheon, D. Liventsev, T. Kuhr, Meng Wang, V. Gaur, Y. Watanabe, M. Nakao, D. M. Asner, R. Louvot, S. K. Choi, K. Kinoshita, B. Bhuyan, T. Tsuboyama, P. Krokovny, G. S. Varner, K. Belous, T. E. Browder, S. Korpar, K. Cho, K. Prothmann, Marko Petrič, T.-A. Shibata, R. Pestotnik, Yongsun Kim, E. Kato, C. H. Wang, Yukinori Sato, E. Nakano, J. G. Shiu, H. Aihara, J. Klucar, H. J. Hyun, S. Uno, P. Smerkol, C. Schwanda, P. Wang, H. Sahoo, K. Trabelsi, A.E. Bondar, G. B. Mohanty, S. Okuno, Y. B. Li, V. Bhardwaj, Byeong Rok Ko, H. O. Kim, T. Uglov, C. P. Shen, A.L. Sibidanov, T. K. Pedlar, A. Moll, Dipanwita Dutta, Z. Doležal, Y. Teramoto, S. Nishida, H. Miyata, Y. Hoshi, O. Seon, Frank Simon, Y. Choi, C. C. Zhang, L. Santelj, K. Senyo, K. M. Williams, C. Ng, C. Oswald, A. Chen, K. Hayasaka, V. Chekelian, T. Saito, H. K. Park, Y. Yamashita, C. Kiesling, Yasushi Nagasaka, Y. M. Goh, M. Bračko, S. Eidelman, P. Pakhlov, C. B. Van Hulse, A. M. Bakich, T. Ohshima, N. Gabyshev, H. Park, A. Bozek, A. Kuzmin, S. Ogawa, R. Mizuk, W. S. Hou, K. Arinstein, E. Won, P. Vanhoefer, B. Golob, A. J. Schwartz, V.N. Zhilich, T. Sumiyoshi, Jeremy Dalseno, K. Miyabayashi, Richard T. Kouzes, Martin Ritter, E. Nedelkovska, T. Sanuki, H. Farhat, Norihito Muramatsu, J. B. Kim, Y. S. Sohn, Y. Unno, I. Adachi, L. E. Piilonen, G. Pakhlova, T. Julius, Po-Hsun Chen, R. Chistov, S. Sandilya, M. J. Kim, M. Starič, T. Kumita, Y. Iwasaki, Y. J. Kwon, and O. Schneider
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, media_common.quotation_subject, 01 natural sciences, Asymmetry, law.invention, Luminosity, KEKB, law, 0103 physical sciences, CP violation, 010306 general physics, Collider, Bar (unit), media_common
Abstract: We search for CP violation in the decay ${D^{+}}\to K_S^0{K^{+}}$ using a data sample with an integrated luminosity of 977 fb−1 collected with the Belle detector at the KEKB e + e − asymmetric-energy collider. No CP violation has been observed and the CP asymmetry in ${D^{+}}\to K_S^0{K^{+}}$ decay is measured to be (−0.25 ± 0.28 ± 0.14)%, which is the most sensitive measurement to date. After subtracting CP violation due to ${K^0}-{{\overline{K}}^0}$ mixing, the CP asymmetry in ${D^{+}}\to {{\overline{K}}^0}{K^{+}}$ decay is found to be (+0.08 ± 0.28 ± 0.14)%.
Published: 2013

122. Study of the hadronic transitionsΥ(2S)→(η,π0)Υ(1S)at Belle

Author: K. Cho, B.A. Shwartz, S. H. Lee, V. Gaur, Sadaharu Uehara, Andrey Sokolov, Vladimir Zhulanov, G. Schnell, J. E. Fast, S. Okuno, Y. Sakai, B. R. Ko, R. Gillard, Jung-Hyun Kim, Y. S. Sohn, M. Röhrken, T. Kumita, T. E. Browder, P. Pakhlov, M. Starič, I. Adachi, J. G. Shiu, Marko Petrič, H. J. Hyun, P. Smerkol, S. Uno, Y. Teramoto, K. Chilikin, Stephen Lars Olsen, B. G. Cheon, J. Dalseno, Y. Iwasaki, Y. Li, B Bhuyan, Yasuyuki Horii, L. Santelj, C. Van Hulse, T. Sumiyoshi, O. Schneider, D. Epifanov, Y. M. Goh, Samo Korpar, E. Solovieva, Z. Q. Liu, Semen Eidelman, M. Z. Wang, A.S. Kuzmin, S. Nishida, D. M. Asner, A. M. Bakich, T. Sanuki, R. Mussa, P. Vanhoefer, G. Tatishvili, Leo Piilonen, Bruce Yabsley, Z. Natkaniec, M. Barrett, T. A. Shibata, A. Frey, R. Pestotnik, K. S. Park, T. K. Pedlar, A. Moll, J. Klucar, A.E. Bondar, Z. Drásal, A. Ishikawa, Frank Simon, Kiyoshi Tanida, M. Bračko, S. Esen, Anze Zupanc, Hiroaki Aihara, Pavel Krokovny, T. Ohshima, M. Nakao, D. Liventsev, H. Farhat, Y. Choi, Z. Doležal, C. Z. Yuan, X. L. Wang, Tagir Aushev, P. Križan, Y. Onuki, Y. Yamashita, D. Santel, Norihito Muramatsu, V.M. Aulchenko, Yueh-Feng Liu, Po-Hsun Chen, Z. P. Zhang, A. Bozek, N. Taniguchi, Toru Iijima, H. O. Kim, K. T. Kim, T. Kawasaki, C. H. Wang, C. Ng, K. Senyo, K. M. Williams, B. Golob, K. Trabelsi, A. Chen, G. B. Mohanty, Richard T. Kouzes, S. Ogawa, C. P. Shen, S. Sandilya, J. H. Kang, Y. Watanabe, V. Zhilich, R. Mizuk, Chang Liu, M. J. Kim, I. Jaegle, Peter Kodys, E. Won, M. Watanabe, P. Wang, U. Tamponi, I. S. Cho, O. Nitoh, G. Varner, Y. Hoshi, D. Dutta, H. K. Park, Yongsun Kim, C. Schwanda, H. Miyata, and K. Hayasaka
Subjects: Combinatorics, Physics, Nuclear and High Energy Physics, KEKB, 010308 nuclear & particles physics, 0103 physical sciences, Hadron, High Energy Physics::Experiment, 010306 general physics, 01 natural sciences
Abstract: We study the rare hadronic transitions $\ensuremath{\Upsilon}(2\mathrm{S})\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1\mathrm{S})\ensuremath{\eta}$ and $\ensuremath{\Upsilon}(2\mathrm{S})\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1\mathrm{S}){\ensuremath{\pi}}^{0}$ using a sample of $158\ifmmode\times\else\texttimes\fi{}{10}^{6}\ensuremath{\Upsilon}(2\mathrm{S})$ decays collected with the Belle detector at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. We measure the ratios of branching fractions $(\mathcal{B})\frac{\mathcal{B}(\ensuremath{\Upsilon}(2\mathrm{S})\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1\mathrm{S})\ensuremath{\eta})}{\mathcal{B}(\ensuremath{\Upsilon}(2\mathrm{S})\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1\mathrm{S}){\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})}=(1.99\ifmmode\pm\else\textpm\fi{}0.14(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.11(\mathrm{syst}))\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$ and $\frac{\mathcal{B}(\ensuremath{\Upsilon}(2\mathrm{S})\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1\mathrm{S}){\ensuremath{\pi}}^{0})}{\mathcal{B}(\ensuremath{\Upsilon}(2\mathrm{S})\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1\mathrm{S}){\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})}l2.3\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ at the 90% confidence level (CL). Assuming the value $\mathcal{B}(\ensuremath{\Upsilon}(2\mathrm{S})\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1\mathrm{S}){\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+})=(17.92\ifmmode\pm\else\textpm\fi{}0.26)%$, we obtain $\mathcal{B}(\ensuremath{\Upsilon}(2\mathrm{S})\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1\mathrm{S})\ensuremath{\eta})=(3.57\ifmmode\pm\else\textpm\fi{}0.25(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.21(\mathrm{syst}))\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ and $\mathcal{B}(\ensuremath{\Upsilon}(2\mathrm{S})\ensuremath{\rightarrow}\ensuremath{\Upsilon}(1\mathrm{S}){\ensuremath{\pi}}^{0})l4.1\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}(90%\mathrm{CL})$.
Published: 2013

123. Precision measurement of charged pion and kaon differential cross sections in e+ e- annihilation at sqrt[s]=10.52 GeV

Author: M, Leitgab, R, Seidl, M, Grosse Perdekamp, A, Vossen, I, Adachi, H, Aihara, D M, Asner, V, Aulchenko, T, Aushev, A M, Bakich, B, Bhuyan, A, Bondar, A, Bozek, M, Bračko, J, Brodzicka, T E, Browder, V, Chekelian, A, Chen, P, Chen, B G, Cheon, K, Chilikin, K, Cho, V, Chobanova, Y, Choi, D, Cinabro, J, Dalseno, Z, Drásal, D, Dutta, S, Eidelman, D, Epifanov, H, Farhat, J E, Fast, V, Gaur, N, Gabyshev, R, Gillard, F, Giordano, Y M, Goh, B, Golob, J, Haba, K, Hayasaka, H, Hayashii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, T, Iijima, A, Ishikawa, R, Itoh, W W, Jacobs, T, Julius, J H, Kang, P, Kapusta, E, Kato, T, Kawasaki, H J, Kim, H O, Kim, J B, Kim, J H, Kim, M J, Kim, J, Klucar, B R, Ko, P, Kodyš, R T, Kouzes, P, Križan, P, Krokovny, R, Kumar, T, Kumita, Y-J, Kwon, J S, Lange, S-H, Lee, Y, Li, Z Q, Liu, D, Liventsev, D, Matvienko, K, Miyabayashi, H, Miyata, R, Mizuk, A, Moll, N, Muramatsu, E, Nakano, M, Nakao, Z, Natkaniec, M, Nayak, E, Nedelkovska, C, Ng, N K, Nisar, O, Nitoh, A, Ogawa, S, Ogawa, T, Ohshima, S, Okuno, S L, Olsen, C, Oswald, P, Pakhlov, H, Park, H K, Park, T K, Pedlar, R, Pestotnik, M, Petrič, L E, Piilonen, M, Röhrken, H, Sahoo, Y, Sakai, S, Sandilya, L, Santelj, T, Sanuki, Y, Sato, O, Schneider, G, Schnell, C, Schwanda, K, Senyo, O, Seon, M E, Sevior, M, Shapkin, C P, Shen, T-A, Shibata, J-G, Shiu, B, Shwartz, A, Sibidanov, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, M, Starič, M, Sumihama, T, Sumiyoshi, G, Tatishvili, Y, Teramoto, T, Tsuboyama, M, Uchida, T, Uglov, Y, Unno, S, Uno, Y, Usov, C, Van Hulse, G, Varner, V, Vorobyev, M N, Wagner, C H, Wang, J, Wang, M-Z, Wang, P, Wang, M, Watanabe, Y, Watanabe, K M, Williams, E, Won, Y, Yamashita, V, Zhilich, and V, Zhulanov
Abstract: Measurements of inclusive differential cross sections for charged pion and kaon production in e+ e- annihilation have been carried out at a center-of-mass energy of sqrt[s]=10.52 GeV. The measurements were performed with the Belle detector at the KEKB e+ e- collider using a data sample containing 113×10(6) e+ e- → qq events, where q={u,d,s,c}. We present charge-integrated differential cross sections dσ(h±)/dz for h±={π±,K±} as a function of the relative hadron energy z=2E(h)/sqrt[s] from 0.2 to 0.98. The combined statistical and systematic uncertainties for π± (K±) are 4% (4%) at z∼0.6 and 15% (24%) at z∼0.9. The cross sections are the first measurements of the z dependence of pion and kaon production for z0.7 as well as the first precision cross section measurements at a center-of-mass energy far below the Z0 resonance used by the experiments at LEP and SLC.
Published: 2013

124. Evidence for theηb(2S)and Observation ofhb(1P)→ηb(1S)γandhb(2P)→ηb(1S)γ

Author: K. Trabelsi, C. P. Shen, B.A. Shwartz, Z. Drásal, K. Arinstein, R. Mizuk, Y. Iwasaki, Y. J. Kwon, T. Aushev, M. E. Sevior, A. Kuzmin, O. Schneider, M. Sumihama, J. Li, J. Yamaoka, T. Iwashita, Yukinori Sato, J. G. Shiu, A.L. Sibidanov, P. Kapusta, S. Okuno, Z. Q. Liu, J. Dalseno, S. Sandilya, Y. Watanabe, T. Tsuboyama, T. Kawasaki, V. Bhardwaj, Y. Yamashita, M. Shapkin, Marko Petrič, A. Garmash, H. J. Hyun, P. Smerkol, K. T. Kim, M. J. Kim, T. Iijima, S. K. Choi, O. Nitoh, M. Uchida, M. Röhrken, K. Chilikin, M. Starič, Y. Teramoto, Bruce Yabsley, C. Ng, S. Nishida, Y. Onuki, T. Kumita, D. Matvienko, D. Liventsev, B. G. Cheon, Yongsun Kim, A.E. Bondar, S. Uno, C. Schwanda, Kiyoshi Tanida, T. Kuhr, J. Libby, Tariq Aziz, C. Z. Yuan, G. S. Varner, X. L. Wang, V. Chekelian, Z. Doležal, J. Haba, R. Pestotnik, D. M. Asner, R. Itoh, K. Belous, S. Korpar, Jolanta Brodzicka, O. Seon, Frank Simon, Y. Choi, W. S. Hou, P. Wang, D. Santel, Peter Kodys, V.M. Aulchenko, Yueh-Feng Liu, R. Louvot, P. Pakhlov, G. Tatishvili, K. Senyo, T. Hara, T. Uglov, I. Tikhomirov, K. M. Williams, Jung-Hyun Kim, A. Chen, V. Vorobyev, Y. Sakai, H. Park, A. Bozek, S. Koblitz, A. Drutskoy, E. Solovieva, B. Bhuyan, T. E. Browder, M. Danilov, I. S. Cho, T. Nozaki, B. Golob, J. S. Lange, A. M. Bakich, Z. Natkaniec, T. Ohshima, E. Won, C. H. Wang, P. Vanhoefer, M. Watanabe, G. B. Mohanty, N. Gabyshev, V.N. Zhilich, I. Jaegle, K. Miyabayashi, M. Bračko, Samo Stanič, Y. S. Sohn, D. Epifanov, B. R. Ko, T. K. Pedlar, A. Moll, G. Bonvicini, A. Vinokurova, P. Krokovny, K. Cho, S. Uehara, M. Z. Wang, K. Kinoshita, Norihito Muramatsu, Anton Poluektov, H. Hayashii, Y. Unno, I. Adachi, Kevin Varvell, M. Iwabuchi, D. Mohapatra, T. Sumiyoshi, Sang Hoon Lee, T. Sanuki, L. E. Piilonen, G. Pakhlova, Andrey Sokolov, J. H. Kang, T. Julius, K. Nishimura, Po-Hsun Chen, H. Aihara, R. Chistov, James E. Fast, Z. P. Zhang, H. O. Kim, S. L. Olsen, R. Mussa, Richard T. Kouzes, A. Ishikawa, A. Bay, C. Liu, C. W. Park, P. Križan, Y. B. Hsiung, V. Gaur, M. Nakao, S. McOnie, H. J. Kim, T. A. Shibata, H. Miyata, M. Bischofberger, Y. Hoshi, S.I. Eidelman, K. Hayasaka, and Yasuyuki Horii
Subjects: Physics, Crystallography, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, General Physics and Astronomy, Resonance, 010306 general physics, 01 natural sciences
Abstract: We report the first evidence for the η(b)(2S) using the h(b)(2P)→η(b)(2S)γ transition and the first observation of the h(b)(1P)→η(b)(1S)γ and h(b)(2P)→η(b)(1S)γ transitions. The mass and width of the η(b)(1S) and η(b)(2S) are measured to be m(η(b)(1S))=(9402.4±1.5±1.8) MeV/c(2), m(η(b)(2S))=(9999.0±3.5(-1.9)(+2.8)) MeV/c(2), and Γ(η(b)(1S))=(10.8(-3.7-2.0)(+4.0+4.5)) MeV. We also update the h(b)(1P) and h(b)(2P) mass measurements. We use a 133.4 fb(-1) data sample collected at energies near the Υ(5S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
Published: 2012

125. Measurement of branching fraction and first evidence ofCPviolation inB0→a1±(1260)π∓decays

Author: A.L. Sibidanov, H. Hayashii, L. E. Piilonen, Marko Petrič, G. Pakhlova, B. G. Cheon, T. Iwashita, P. Krokovny, H. J. Hyun, P. Smerkol, K. Prothmann, A. Garmash, T. Julius, Po-Hsun Chen, R. Chistov, K. Cho, K. M. Williams, A. Chen, O. Nitoh, C. Ng, R. Louvot, J. H. Kang, K. Nishimura, K. Belous, S. Korpar, M. Shapkin, M. Röhrken, K. Chilikin, D. Matvienko, Y. Miyazaki, V.E. Shebalin, Vladimir Zhulanov, B. Bhuyan, Z. Doleal, Hiroaki Aihara, B. R. Ko, M. E. Sevior, Yoshinobu Unno, Norihito Muramatsu, D. M. Asner, B. Kronenbitter, H. Sahoo, T. Iijima, T. K. Pedlar, A. Moll, T. E. Browder, James E. Fast, V. Gaur, K. Senyo, T. Kuhr, G. Tatishvili, J. G. Shiu, J. Dalseno, S. Okuno, M. Starič, M. Sumihama, G. B. Mohanty, Phillip Urquijo, M. Nakao, M. Ritter, T. Kumita, Yongsun Kim, K. Inami, M. Iwabuchi, R. Pestotnik, C. Kiesling, V. Chekelian, S. Uno, C. Schwanda, E. Won, S. McOnie, S. Uehara, Z. Drásal, O. Brovchenko, Y. Iwasaki, J. MacNaughton, Y. J. Kwon, O. Schneider, A. Ishikawa, A. Bay, Y. Teramoto, Bruce Yabsley, C. W. Park, K. Kinoshita, Anze Zupanc, M. Watanabe, M. Bračko, D. Mohapatra, T. Sumiyoshi, I. Adachi, P. Vanhoefer, Z. Q. Liu, J. Libby, J. B. Kim, Y. Watanabe, Sang Hoon Lee, I. S. Cho, S. Nishida, H. O. Kim, A. J. Schwartz, S. Ogawa, W. S. Hou, M. T. Prim, T. Sanuki, C. H. Wang, H. K. Park, Y. Yamashita, Chang Liu, A. M. Bakich, Z. Natkaniec, Zhenyu Zhang, T. Ohshima, P. Pakhlov, M. Uchida, Y. Usov, A. Bozek, S. Koblitz, G. S. Varner, N. Gabyshev, R. Itoh, P. Wang, P. Krian, O. Seon, Frank Simon, Y. Sakai, Y. Choi, E. Solovieva, Y. M. Goh, S.I. Eidelman, P. Kody, Y. S. Sohn, V.N. Zhilich, K. Miyabayashi, V.M. Aulchenko, E. Nedelkovska, K. Trabelsi, C. P. Shen, T. Aushev, J. Li, T. A. Shibata, H. Miyata, Y. Hoshi, Yasuyuki Horii, and Y. B. Hsiung
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Analytical chemistry, Resonance, 01 natural sciences, KEKB, 0103 physical sciences, Pi, CP violation, B meson, 010306 general physics
Abstract: We present a measurement of the branching fraction and time-dependent CP violation parameters in B-0 -> a(1)(+/-)(1260)pi(-/+) decays. The results are obtained from the final data sample containing 772 x 10(6) B (B) over bar pairs collected at the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain the product branching fraction B(B-0 -> a(1)(+/-)(1260)pi(-/+)) x B(a(1)(+/-)(1260) -> pi(+/-)pi(-/+)pi(+/-)) = (11.1 +/- 1.0(stat) +/- 1.4(syst)) x 10(-6) and an upper limit on the product branching fraction for a possible decay with the same final state B(B-0 -> a(2)(+/-)(1320)pi(-/+)) x B(a(2)(+/-)(1320) -> pi(+/-)pi(-/+)pi(+/-)) a(1)(+/-)(1260)pi(-/+) decays with 3.1 sigma significance. The rate where the a(1)(+/-) 1 does not contain the spectator quark from the B meson is found to dominate the rate where it does at the 4.1 sigma level. However, there is no evidence for either time-and flavor-integrated direct CP violation or flavor-dependent direct CP violation.
Published: 2012

126. Evidence for B- → τ- ν(τ) with a hadronic tagging method using the full data sample of Belle

Author: K, Hara, Y, Horii, T, Iijima, I, Adachi, H, Aihara, D M, Asner, T, Aushev, T, Aziz, A M, Bakich, M, Barrett, V, Bhardwaj, B, Bhuyan, A, Bondar, G, Bonvicini, A, Bozek, M, Bračko, T E, Browder, V, Chekelian, A, Chen, P, Chen, B G, Cheon, K, Chilikin, I-S, Cho, K, Cho, Y, Choi, D, Cinabro, J, Dalseno, J, Dingfelder, Z, Doležal, Z, Drásal, A, Drutskoy, D, Dutta, S, Eidelman, D, Epifanov, S, Esen, H, Farhat, A, Frey, V, Gaur, N, Gabyshev, S, Ganguly, R, Gillard, Y M, Goh, B, Golob, J, Haba, T, Hara, K, Hayasaka, H, Hayashii, T, Higuchi, Y, Hoshi, K, Inami, A, Ishikawa, R, Itoh, Y, Iwasaki, T, Iwashita, T, Julius, J H, Kang, T, Kawasaki, C, Kiesling, H O, Kim, J B, Kim, J H, Kim, K T, Kim, M J, Kim, Y J, Kim, K, Kinoshita, J, Klucar, B R, Ko, P, Kodyš, S, Korpar, R T, Kouzes, P, Križan, P, Krokovny, B, Kronenbitter, T, Kuhr, T, Kumita, A, Kuzmin, Y-J, Kwon, J S, Lange, S-H, Lee, J, Li, Y, Li, J, Libby, C, Liu, Y, Liu, Z Q, Liu, D, Liventsev, D, Matvienko, K, Miyabayashi, H, Miyata, R, Mizuk, G B, Mohanty, A, Moll, T, Mori, N, Muramatsu, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, M, Nayak, C, Ng, N K, Nisar, S, Nishida, K, Nishimura, O, Nitoh, T, Nozaki, T, Ohshima, S, Okuno, S L, Olsen, C, Oswald, H, Ozaki, P, Pakhlov, G, Pakhlova, C W, Park, H K, Park, T K, Pedlar, R, Pestotnik, M, Petrič, L E, Piilonen, M, Prim, M, Röhrken, S, Ryu, H, Sahoo, K, Sakai, Y, Sakai, S, Sandilya, D, Santel, T, Sanuki, Y, Sato, O, Schneider, G, Schnell, C, Schwanda, A J, Schwartz, K, Senyo, O, Seon, M E, Sevior, M, Shapkin, C P, Shen, T-A, Shibata, J-G, Shiu, B, Shwartz, A, Sibidanov, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, M, Starič, M, Sumihama, T, Sumiyoshi, G, Tatishvili, Y, Teramoto, K, Trabelsi, T, Tsuboyama, M, Uchida, S, Uehara, Y, Unno, S, Uno, P, Urquijo, Y, Ushiroda, Y, Usov, C, Van Hulse, P, Vanhoefer, G, Varner, K E, Varvell, V, Vorobyev, M N, Wagner, C H, Wang, M-Z, Wang, P, Wang, M, Watanabe, Y, Watanabe, K M, Williams, E, Won, B D, Yabsley, H, Yamamoto, Y, Yamashita, Y, Yusa, Z P, Zhang, V, Zhilich, V, Zhulanov, and A, Zupanc
Subjects: Quantum Theory, Elementary Particles, Nuclear Physics
Abstract: We measure the branching fraction of B- → τ- ν(τ) using the full Υ(4S) data sample containing 772×10(6) BB pairs collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. Events with BB pairs are tagged by reconstructing one of the B mesons decaying into hadronic final states, and B- → τ- ν(τ) candidates are detected in the recoil. We find evidence for B- → τ- ν(τ) with a significance of 3.0 standard deviations including systematic errors and measure a branching fraction B(B- → τ- ν(τ))=[0.72(-0.25)(+0.27)(stat)±0.11(syst)]×10(-4).
Published: 2012

127. Measurement ofγγ*→π0transition form factor at Belle

Author: P. Pakhlov, A.L. Sibidanov, R. Louvot, Y. Iwasaki, Marko Petrič, T. Iwashita, T. Sumiyoshi, H. J. Hyun, P. Smerkol, T. Mori, Y. J. Kwon, Y. Usov, Sang Hoon Lee, T. A. Shibata, Y. Sakai, Yongsun Kim, S. Uno, C. Schwanda, H. Miyata, M. Bischofberger, D. Epifanov, B. R. Ko, Y. Hoshi, O. Schneider, A. Bozek, O. Nitoh, K. Trabelsi, C. P. Shen, T. Sanuki, D. Matvienko, Y. Miyazaki, Z. Q. Liu, M. Uchida, S. Koblitz, K. S. Park, K. Hayasaka, D. M. Asner, B. G. Cheon, A.S. Kuzmin, K. Belous, S. Korpar, P. Kody, H. O. Kim, B.A. Shwartz, T. K. Pedlar, Yasuyuki Horii, B. Bhuyan, D. Liventsev, A. Moll, K. Prothmann, T. E. Browder, R. Seidl, Yasushi Nagasaka, T. Aushev, Z. Doleal, Hiroaki Aihara, I. S. Cho, Richard T. Kouzes, K. M. Williams, A. Chen, E. Solovieva, G. S. Varner, Y. Onuki, S. Okuno, M. C. Chang, Yukinori Sato, M. Shapkin, J. G. Shiu, V. Savinov, J. Li, M. J. Kim, C. Z. Yuan, M. Röhrken, K. Chilikin, J. Dalseno, R. Itoh, M. Starič, G. B. Mohanty, Zhenyu Zhang, K. T. Kim, P. Wang, S. Nishida, M. Iwabuchi, L. E. Piilonen, V. Gaur, Yueh-Feng Liu, G. Pakhlova, Vladimir Zhulanov, C. Kiesling, M. Nakao, G. Bonvicini, O. Seon, Frank Simon, M. E. Sevior, R. Pestotnik, Y. S. Sohn, Anze Zupanc, T. Julius, C. H. Wang, A. Vinokurova, H. K. Park, H. Nakazawa, Y. Yamashita, M. Bračko, Po-Hsun Chen, M. Feindt, Z. Drásal, Y. Watanabe, Y. Teramoto, S. L. Olsen, H. J. Kim, P. Krokovny, Chang Liu, C. L. Lim, T. Kawasaki, H. Hayashii, Sadaharu Uehara, W. S. Hou, A.E. Bondar, K. Cho, Yang Li, Y. Choi, Yoshinobu Unno, J. Haba, V. Vorobyev, Y. M. Goh, C. C. Zhang, A. M. Bakich, Z. Natkaniec, T. Ohshima, M. Watanabe, Jung-Hyun Kim, K. Sakai, E. Nakano, N. Gabyshev, T. Tsuboyama, J. Libby, S.I. Eidelman, V. Bhardwaj, T. Iijima, Sunmin Ryu, E. Won, Jasvinder A. Singh, P. Vanhoefer, K. Senyo, B. Golob, P. Krian, J. S. Lange, A. Ishikawa, Andrey Sokolov, J. H. Kang, K. Nishimura, James E. Fast, Norihito Muramatsu, I. Adachi, V.N. Zhilich, K. Miyabayashi, J. B. Kim, S. Ogawa, and H. Sahoo
Subjects: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Form factor (quantum field theory), Virtual particle, 01 natural sciences, law.invention, Gamma gamma, Nuclear physics, Pion, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider
Abstract: We report a measurement of the process gamma gamma* -> pi(0) with a 759 fb(-1) data sample recorded with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The pion transition form factor, F(Q(2)), is measured for the kinematical region 4 GeV2
Published: 2012

128. Evidence forB−→Ds+K−ℓ−ν¯ℓand search forB−→Ds*+K−ℓ−ν¯ℓ

Author: M. Starič, B.A. Shwartz, K. Adamczyk, Y. Watanabe, J. G. Shiu, Vladimir Zhulanov, M. E. Sevior, Marko Petrič, H. J. Hyun, P. Smerkol, Y. Iwasaki, B. G. Cheon, Y. Miyazaki, A.E. Bondar, O. Schneider, J. B. Kim, C. Ng, K. Senyo, A.S. Kuzmin, Samo Korpar, Y. Choi, Y. Teramoto, Zhenyu Zhang, K. T. Kim, R. Gillard, Samo Stanič, M. Rozanska, H. Kichimi, E. Solovieva, Y. J. Kwon, J. Haba, Yasuyuki Horii, T. Kumita, T. E. Browder, K. Inami, Z. Q. Liu, Pavel Krokovny, H. Miyata, P. Kody, M. Bischofberger, K. Kinoshita, K. Hayasaka, Tagir Aushev, Y. Onuki, V. Bhardwaj, Yongsun Kim, R. Mizuk, S. H. Lee, C. P. Shen, S. L. Olsen, Y. Yamashita, P. Pakhlov, C. Schwanda, S. Sandilya, J. Wiechczynski, Yueh-Feng Liu, B. R. Ko, Y. B. Hsiung, T. Julius, Y. Sakai, Y. Sato, D. M. Asner, J. Dalseno, Po-Hsun Chen, V. Zhilich, M. Sumihama, R. Chistov, T. Kawasaki, H. J. Kim, H. Hayashii, Phillip Urquijo, M. Ritter, T. A. Shibata, Kevin Varvell, Leo Piilonen, B. Golob, P. Krian, D. Liventsev, G. B. Mohanty, H. Park, A. Bozek, J. Li, A. Drutskoy, Y. Usov, W. S. Hou, Jochen Dingfelder, O. Seon, Frank Simon, R. Itoh, D. Santel, P. Wang, Anze Zupanc, B. Bhuyan, V. Vorobyev, E. Nakano, S. Uno, Richard T. Kouzes, Z. Doleal, Hiroaki Aihara, J. Stypula, Sunmin Ryu, T. Kuhr, E. Won, T. Sumiyoshi, M. Danilov, Yang Li, Y. S. Sohn, Hitoshi Yamamoto, P. Vanhoefer, T. Sanuki, S. Ogawa, Y. M. Goh, R. Louvot, S. Nishida, V. Gaur, M. Shapkin, X. L. Wang, M. C. Chang, A.L. Sibidanov, M. Iwabuchi, G. Varner, Y. Hoshi, M. Uchida, G. Pakhlova, Z. Natkaniec, T. Ohshima, N. Gabyshev, P. Kapusta, C. Kiesling, M. Watanabe, H. K. Park, A. Ishikawa, M. Bračko, T. Nozaki, M. Nakao, Bruce Yabsley, C. W. Park, Andrey Sokolov, P. Chang, Jung-Hyun Kim, J. H. Kang, K. Nishimura, I. S. Cho, James E. Fast, J. Libby, Semen Eidelman, O. Nitoh, V. Chekelian, H. Farhat, K. Miyabayashi, Chang Liu, T. K. Pedlar, A. Moll, G. Bonvicini, K. Cho, M. Röhrken, R. Pestotnik, K. M. Williams, A. Chen, Y. Unno, Z. Drásal, I. Adachi, A. M. Bakich, S. Okuno, Norihito Muramatsu, Toru Iijima, H. Sahoo, and T. Uglov
Subjects: Physics, Nuclear and High Energy Physics, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, Invariant mass, 010306 general physics, 01 natural sciences
Abstract: We report measurements of the decays B- -> Ds(*)+ K- l- nubar in a data sample containing 657x10^6 BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We observe a signal with a significance of 6 sigma for the combined Ds and Ds* modes and find the first evidence of the B- -> Ds+ K- l- nubar decay with a significance of 3.4 sigma. We measure the following branching fractions: BF(B- -> Ds+ K- l nubar) = (0.30 +/- 0.09(stat) +0.11 -0.08(syst)) x 10^-3 and BF(B- -> Ds*+ K- l- nubar) = (0.59 +/- 0.12(stat) +/- 0.15(syst)) x 10^-3 and set an upper limit BF(B- -> Ds*+ K- l- nubar) < 0.56 x 10^-3 at the 90% confidence level. We also present the first measurement of the Ds+K- invariant mass distribution in these decays, which is dominated by a prominent peak around 2.6 GeV/c^2.
Published: 2012

129. First observation ofCPviolation and improved measurement of the branching fraction and polarization ofB0→D+D−decays

Author: M. Starič, G. Tatishvili, A. Moll, P. Kapusta, J. G. Shiu, Z. Q. Liu, D. Liventsev, H. Ozaki, Leo Piilonen, B Bhuyan, Yasuyuki Horii, K. Kinoshita, R. Pestotnik, A.E. Bondar, Z. Drásal, T. Kuhr, Marko Petrič, Frank Simon, S. Okuno, H. K. Park, Y. Choi, Z. Doležal, K. T. Kim, K. Belous, Tariq Aziz, Y. S. Sohn, I. Adachi, P. Smerkol, Vladimir Zhulanov, Tagir Aushev, Y. Onuki, M. E. Sevior, Y. Li, Bruce Yabsley, Stephen Lars Olsen, B. Kronenbitter, E. Nakano, J. E. Fast, Y. Yamashita, B. R. Ko, Andrey Sokolov, L. Santelj, H. Miyata, D. Zander, T. Sumiyoshi, B. G. Cheon, S. H. Lee, Pavel Krokovny, G. B. Mohanty, O. Brovchenko, M. Ritter, T. A. Shibata, A. M. Bakich, S. Sandilya, H. Hayashii, S. Stanič, Yueh-Feng Liu, Y. M. Goh, K. Nishimura, K. M. Williams, A. Chen, Y. Unno, T. Tsuboyama, M. J. Kim, S. Neubauer, S. McOnie, H. J. Kim, K. Trabelsi, S. Nishida, J. Libby, Samo Korpar, C. P. Shen, K. Miyabayashi, D. M. Asner, W. S. Hou, K. Inami, V. Zhilich, Y. Sakai, K. Cho, Semen Eidelman, H. Sahoo, J. Li, M. Bračko, A. J. Schwartz, Hiroaki Aihara, J. Haba, T. Uglov, I. S. Cho, J. Yamaoka, V. Bhardwaj, A. Ishikawa, M. Nakao, M. Feindt, Toru Iijima, C. W. Park, P. Križan, Y. Teramoto, M. T. Prim, M. Röhrken, C. H. Wang, Y. B. Hsiung, O. Nitoh, S. Esen, V. Chekelian, Anze Zupanc, K. Sumisawa, M. Uchida, G. Pakhlova, Jung-Hyun Kim, M. Barrett, E. Solovieva, A. Bozek, M. Sumihama, V. Vorobyev, P. Pakhlov, S. Uno, Sunmin Ryu, T. Sanuki, H. Park, P. Vanhoefer, S. Koblitz, A. Drutskoy, Peter Kodys, E. Won, T. Kawasaki, K. Arinstein, R. Mizuk, C. Ng, K. Senyo, R. Louvot, P. Wang, Yongsun Kim, C. Schwanda, A.L. Sibidanov, N. Gabyshev, G. Varner, V. Gaur, M. Shapkin, R. Itoh, Y. Hoshi, T. Kumita, T. E. Browder, Sadaharu Uehara, Rakesh Kumar, J. B. Kim, M. Iwabuchi, Y. Iwasaki, T. Ohshima, O. Schneider, T. Julius, Po-Hsun Chen, R. Chistov, D. Mohapatra, Y. J. Kwon, J. Dalseno, C. Kiesling, H. O. Kim, Richard T. Kouzes, Kevin Varvell, J. H. Kang, Y. Watanabe, and Y. Usov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, KEKB, 010308 nuclear & particles physics, Branching fraction, 0103 physical sciences, CP violation, 010306 general physics, Polarization (waves), 01 natural sciences
Abstract: We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B-0 -> D*(+) D*(-) decays using a data sample of 772 x 10(6)B (B) over bar pairs, collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain a branching fraction of B = (7.82 +/- 0.38 +/- 0.63) x 10(-4), a CP-odd fraction of R-perpendicular to = 0.138 +/- 0.024 +/- 0.006 and, additionally, a fraction of the longitudinal component in the transversity base of R-0 = 0.624 +/- 0.029 +/- 0.011. The measured values of the parameters of the CP violation are SD*+ D*- = 0.79 +/- 0.13 +/- 0.03 and A(D*+ D*-) 0.15 +/- 0.08 +/- 0.04.
Published: 2012

130. Erratum: Evidence forCPViolation in the DecayD+→KS0π+[Phys. Rev. Lett.109, 021601 (2012)]

Author: S. Uehara, M. Uchida, Z. Natkaniec, Norihito Muramatsu, D. Liventsev, Sunmin Ryu, Y. Unno, C. W. Park, E. Won, T. Iijima, G. S. Varner, A. Zupanc, I. Adachi, O. Nitoh, Marko Petrič, T. Kuhr, H. J. Hyun, P. Smerkol, R. Itoh, P. Wang, W. S. Hou, Alexei Kuzmin, M. J. Kim, T. Aushev, S. Ogawa, V. Vorobyev, M. Starič, Andrey Sokolov, Z. Doleal, G. Bonvicini, D. Matvienko, Y. Miyazaki, J. H. Kang, K. Nishimura, C. Z. Yuan, Frank Simon, E. Nakano, R. Mizuk, A. Vinokurova, B. Golob, P. Krian, V. V. Zhulanov, Byeong Rok Ko, Byung Gu Cheon, H. Sahoo, Tariq Aziz, J. S. Lange, Y. Iwasaki, Y. Sakai, Y. Choi, P. Krokovny, Y. J. Kwon, G. Tatishvili, H. O. Kim, O. Schneider, K. Cho, M. Iwabuchi, Y. M. Goh, K. Trabelsi, C. P. Shen, K. Senyo, A. Ishikawa, C. L. Lim, T. Kawasaki, A.E. Bondar, D. M. Asner, K. S. Park, E. Solovieva, V. Bhardwaj, T. K. Pedlar, A. Moll, S. L. Olsen, R. Louvot, V.E. Shebalin, M. Bischofberger, Y. Hoshi, H. K. Park, K. Hayasaka, Yasuyuki Horii, C. Liu, Y. Yamashita, V. Gaur, Y. B. Hsiung, S. Uno, M. Nakao, C. Schwanda, Kevin Varvell, G. B. Mohanty, T. Mori, H. Aihara, S. Okuno, Satoshi Tanaka, Y. F. Liu, Z. P. Zhang, Z. Q. Liu, J. Haba, Y. Teramoto, J. Libby, K. Sakai, Y. Watanabe, K. T. Kim, H. Nakazawa, J. E. Fast, T. Tsuboyama, A. J. Schwartz, M. E. Sevior, L. E. Piilonen, G. Pakhlova, C. C. Zhang, T. Iwashita, P. Kody, J. B. Kim, M. Watanabe, Anton Poluektov, Y. Onuki, T. Julius, W. Ostrowicz, Po-Hsun Chen, V. M. Aulchenko, C. Kiesling, Y. S. Sohn, M. Bračko, V.N. Zhilich, I. S. Cho, H. Hayashii, B. Shwartz, T. Sumiyoshi, K. Kinoshita, S. Koblitz, Samo Stanič, Martin Ritter, T. Sanuki, A. M. Bakich, R. Seidl, T. Ohshima, C. H. Wang, T.-A. Shibata, N. Gabyshev, A.L. Sibidanov, M. C. Chang, M. Shapkin, S. Eidelman, M. Röhrken, K. Chilikin, Y. J. Kim, P. Pakhlov, K. Belous, S. Korpar, S. H. Lee, R. Pestotnik, Yukinori Sato, A. Garmash, J. G. Shiu, Z. Drásal, Y. B. Li, J. Li, A. Bozek, Yasushi Nagasaka, H. Yamamoto, A. Chen, S. Nishida, X. L. Wang, B. Bhuyan, and T. E. Browder
Subjects: Physics, Particle physics, Quantum mechanics, General Physics and Astronomy, CP violation
Published: 2012

131. First study ofηc(1S),η(1760)andX(1835)production viaη′π+π−final states in two-photon collisions

Author: Y. Ban, A. Vinokurova, V. Gaur, S. Nishida, J. G. Shiu, J. Dalseno, S. McOnie, Marko Petrič, H. J. Hyun, P. Smerkol, B. G. Cheon, D. Matvienko, Semen Eidelman, Z. Natkaniec, D. M. Asner, J. Li, Samo Korpar, M. Röhrken, K. Chilikin, H. Nakazawa, Y. M. Goh, Stephen Lars Olsen, E. Nakano, M. Uchida, Y. Choi, H. O. Kim, G. Pakhlova, M. Danilov, B. R. Ko, T. Iijima, Hiroaki Aihara, R. Pestotnik, Pavel Krokovny, T. Ohshima, Z. Q. Liu, C. Z. Yuan, P. Wang, W. S. Hou, O. Schneider, I. Tikhomirov, K. M. Williams, X. L. Wang, C. P. Shen, M. Sumihama, Y. Watanabe, T. Julius, A.S. Kuzmin, C. Kiesling, A. Chen, R. Chistov, A. Ishikawa, V. Vorobyev, M. Nakao, Y. S. Sohn, H. Sahoo, C. C. Zhang, Zhenyu Zhang, P. Pakhlov, T. Uglov, B.A. Shwartz, M. J. Kim, E. Solovieva, S. Uno, M. Shapkin, T. E. Browder, A. M. Bakich, R. Mizuk, Vladimir Zhulanov, Sunmin Ryu, M. E. Sevior, H. Park, Y. L. Han, Yoshinobu Unno, D. Santel, H. Hayashii, M. Iwabuchi, Peter Kodys, S. Uehara, K. Inami, Y. Sakai, T. Sumiyoshi, N. Gabyshev, T. Sanuki, Leo Piilonen, K. Belous, H. K. Park, Y. Yamashita, Yongsun Kim, C. Schwanda, S. Stanič, R. Louvot, V.E. Shebalin, G. Varner, T. A. Shibata, M. Bischofberger, Yasuyuki Horii, M. Feindt, M. Starič, Tagir Aushev, Yueh-Feng Liu, J. Libby, S. Okuno, and Bruce Yabsley
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Resonance, State (functional analysis), 01 natural sciences, law.invention, Nuclear physics, KEKB, Amplitude, law, 0103 physical sciences, Pi, Mass spectrum, High Energy Physics::Experiment, Invariant mass, Nuclear Experiment, 10. No inequality, 010306 general physics, Collider
Abstract: The invariant mass spectrum of the eta 'pi(+)pi(-) final state produced in two-photon collisions is obtained using a 673 fb(-1) data sample collected in the vicinity of the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We observe a clear signal of the eta(c)(1S) and measure its mass and width to be Md(eta(c)(1S)) = (2982.7 +/- 1.8(stat) +/- 2.2(syst) +/- 0.3(model)) MeV/c(2) and Gamma(eta(c)(1S)) = (37.8(-5.3)(+5.8)(stat) +/- 2.8(syst) +/- 1.4(model)) MeV/c(2). The third error is an uncertainty due to possible interference between the eta(c)(1S) and a nonresonant component. We also report the first evidence for eta(1760) decay to eta'pi(+)pi(-); we find two solutions for its parameters, depending on the inclusion or not of the X(1835), whose existence is of marginal significance in our data. From a fit to the mass spectrum using coherent X(1835) and eta(1760) resonant amplitudes, we set a 90% confidence level upper limit on the product Gamma B-gamma gamma(eta'pi(+)pi(-)) for the X(1835).
Published: 2012

132. Observation of exclusiveΥ(1S)andΥ(2S)decays into light hadrons

Author: S. McOnie, Y. Teramoto, S. Ogawa, I. Adachi, A. M. Bakich, S. Uehara, C. C. Zhang, V. Gaur, M. Shapkin, Marko Petrič, H. J. Hyun, P. Smerkol, S. Okuno, M. Watanabe, T. K. Pedlar, D. Santel, M. J. Kim, H. O. Kim, R. Itoh, A. Moll, K. Belous, Norihito Muramatsu, M. C. Chang, P. Wang, B. H. Kim, Hiroaki Aihara, Toru Iijima, E. Solovieva, Richard T. Kouzes, Rakesh Kumar, E. Nakano, P. Chang, T. Kumita, I. S. Cho, C. Z. Yuan, V. Zhilich, Y. S. Sohn, B. G. Cheon, Z. Doleåal, T. E. Browder, M. Iwabuchi, M. Uchida, H. Miyata, M. Bischofberger, J. Dalseno, Jung-Hyun Kim, Z. Q. Liu, O. Nitoh, C. H. Wang, Leo Piilonen, G. Pakhlova, Samo Korpar, H. K. Park, Phillip Urquijo, M. Ritter, C. Kiesling, T. A. Shibata, R. Louvot, T. Iwashita, G. Bonvicini, J. Li, Y. Iwasaki, D. M. Asner, V.E. Shebalin, Y. Usov, G. Tatishvili, O. Seon, Frank Simon, J. Libby, M. Bračko, O. Schneider, T. Julius, Po-Hsun Chen, S. H. Lee, A.L. Sibidanov, T. Kawasaki, A.S. Kuzmin, Z. Natkaniec, T. Ohshima, R. Chistov, S. L. Olsen, Anze Zupanc, K. Cho, M. Starič, G. Varner, N. Gabyshev, Y. Hoshi, H. Sahoo, Y. Sakai, Y. Sato, Y. B. Hsiung, J. Haba, T. Uglov, Pavel Krokovny, Y. Watanabe, J. G. Shiu, P. Pakhlov, D. Mohapatra, T. Sumiyoshi, B.A. Shwartz, Bruce Yabsley, Yongsun Kim, Y. Choi, P. Kodyå, T. Sanuki, C. Schwanda, Zhenyu Zhang, Vladimir Zhulanov, M. E. Sevior, S. K. Choi, Yasuyuki Horii, C. P. Shen, E. Won, P. Kriaan, H. Park, A. Bozek, M. Sumihama, K. Kinoshita, S. Koblitz, B. Bhuyan, Tagir Aushev, Y. Yamashita, Yueh-Feng Liu, B. R. Ko, H. Hayashii, S. Nishida, K. M. Williams, Yang Li, X. L. Wang, A. Chen, Y. Unno, K. Chilikin, K. Inami, Y. M. Goh, G. B. Mohanty, R. Pestotnik, Z. Drásal, B. Golob, K. Senyo, S. Uno, P. Vanhoefer, W. S. Hou, Chang Liu, J. B. Kim, Y. J. Kwon, K. Miyabayashi, Andrey Sokolov, J. H. Kang, K. Nishimura, James E. Fast, Semen Eidelman, A. Ishikawa, A. Bay, M. Nakao, and C. W. Park
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Hadron, Pi, Perturbative QCD, 010306 general physics, 01 natural sciences, Omega
Abstract: Using samples of 102 x 10(6) Gamma(1S) and 158 x 10(6) Gamma(2S) events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the three-body final states phi K+K-, omega pi(+)pi(-) and K*(0)(892)K-pi(+), and to the two-body Vector-Tensor states (phi f'(2)(1525), omega f(2)(1270), rho a(2)(1320) and K*(0)(892)(K) over bar*(0)(2)(1430)) and Axial-vector-Pseudoscalar (K-1(1270)K-+(-), K-1(1400)K-+(-) and b(1)(1235)(+)pi(-)) states. Signals are observed for the first time in the Y(1S) -> phi K+K-, omega pi(+)pi(-), K*K-0(-)pi(+), K*K-0*(0)(2) Gamma(2S) -> phi K+K-, K*K-0(-)pi(+) decay modes. Branching fractions are determined for all the processes, while 90% confidence level upper limits are established on the branching fractions for the modes with a statistical significance less than 3 sigma. The ratios of the branching fractions of Gamma(2S) and Gamma(1S) decays into the same final state are used to test a perturbative QCD prediction for OZI-suppressed bottomonium decays.
Published: 2012

133. Search forB→ϕπdecays

Author: H. Park, A.E. Bondar, V. Vorobyev, C. P. Shen, H. Sahoo, K. M. Williams, A. Chen, Y. Unno, Y. Choi, Z. Doležal, T. Uglov, Z. Q. Liu, B. Golob, Marko Petrič, H. J. Hyun, P. Smerkol, B. G. Cheon, T. K. Pedlar, Y. Miyazaki, A. Moll, V. Zhilich, D. Liventsev, Zhenyu Zhang, Leo Piilonen, I. Adachi, Frank Simon, R. Gillard, Z. Drásal, Samo Korpar, J. Li, A. Bozek, W. S. Hou, B Bhuyan, M. Uchida, A. Ishikawa, H. Kichimi, D. M. Asner, T. Kawasaki, Yasuyuki Horii, T. Sumiyoshi, A. M. Bakich, S. Uno, Sunmin Ryu, K. T. Kim, Hiroaki Aihara, G. Bonvicini, G. Pakhlova, Y. B. Hsiung, K. Chilikin, M. Nakao, C. W. Park, T. Sanuki, M. Sumihama, M. Bračko, H. Farhat, H. Miyata, M. Bischofberger, P. Krokovny, Hitoshi Yamamoto, J. Libby, T. E. Browder, C. L. Lim, Anze Zupanc, M. Starič, K. Hayasaka, H. J. Kim, R. Pestotnik, K. Cho, Y. Iwasaki, P. Vanhoefer, Norihito Muramatsu, C. Ng, K. Senyo, J. G. Shiu, P. Kvasnička, J. Haba, O. Schneider, Toru Iijima, K. Miyabayashi, Tagir Aushev, A.S. Kuzmin, G. B. Mohanty, Y. Yamashita, S. Sandilya, B.A. Shwartz, P. Chang, K. Adamczyk, H. O. Kim, V.M. Aulchenko, Yueh-Feng Liu, Jung-Hyun Kim, K. Belous, Vladimir Zhulanov, Peter Kodys, M. E. Sevior, S. Okuno, E. Won, Semen Eidelman, T. Hara, Phillip Urquijo, M. Ritter, T. A. Shibata, Y. M. Goh, V. Chekelian, R. Louvot, Y. Li, P. Wang, Richard T. Kouzes, T. Iwashita, S. Nishida, Jochen Dingfelder, Yongsun Kim, C. Schwanda, J. Dalseno, A.L. Sibidanov, C. Kiesling, J. H. Kang, Stephen Lars Olsen, E. Nakano, G. Varner, Y. Watanabe, Jasvinder A. Singh, Y. Hoshi, Z. Natkaniec, N. Gabyshev, T. Kuhr, Y. S. Sohn, R. Itoh, J. B. Kim, Y. J. Kwon, T. Ohshima, T. Julius, Po-Hsun Chen, H. K. Park, V. Gaur, M. Shapkin, S. Stanič, M. C. Chang, S. H. Lee, Y. Sakai, Y. Teramoto, E. Solovieva, M. Watanabe, M. Iwabuchi, I. S. Cho, O. Nitoh, D. Dutta, J. E. Fast, B. R. Ko, H. Hayashii, and K. Inami
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Resonance, Astrophysics, 01 natural sciences, law.invention, Standard Model, KEKB, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: We report on a search for the charmless decays $B^{+} \to\phi\pi^{+}$ and $B^{0} \to\phi \pi^{0}$ that are strongly suppressed in the Standard Model. The analysis is based on a data sample of $657 \times 10^6$ $B \bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We find no significant signal and set upper limits of $3.3 \times 10^{-7}$ for $B^{+} \to \phi \pi^{+}$ and $1.5 \times 10^{-7}$ for $B^0 \to \phi \pi^0$ at the 90% confidence level.
Published: 2012

134. Evidence forCPViolation in the DecayD+→KS0π+

Author: V.N. Zhilich, Andrey Sokolov, J. H. Kang, K. Nishimura, G. Bonvicini, T. Aushev, Y. Iwasaki, Y. J. Kwon, A. Vinokurova, J. Haba, James E. Fast, O. Schneider, M. Shapkin, P. Krokovny, J. Li, M. Röhrken, Tariq Aziz, G. Tatishvili, K. Cho, S. Okuno, S. L. Olsen, K. Chilikin, Yang Li, C. C. Zhang, Y. Watanabe, B.A. Shwartz, Y. Choi, T. Sumiyoshi, Z. Q. Liu, Sang Hoon Lee, Yongsun Kim, T. Sanuki, Yukinori Sato, J. G. Shiu, S. Uno, C. Schwanda, A. M. Bakich, M. Watanabe, Z. Natkaniec, T. Ohshima, R. Seidl, Y. B. Hsiung, W. Ostrowicz, M. C. Chang, M. Iwabuchi, L. E. Piilonen, G. Pakhlova, A. Ishikawa, E. Nakano, Y. Teramoto, T. Julius, Po-Hsun Chen, M. J. Kim, S. Nishida, I. S. Cho, M. Ritter, C. W. Park, A.L. Sibidanov, A. Garmash, Kevin Varvell, Anze Zupanc, Vladimir Zhulanov, R. Pestotnik, M. E. Sevior, M. Starič, B. R. Ko, C. L. Lim, T. Kawasaki, X. L. Wang, P. Križan, S. Uehara, Y. M. Goh, N. Gabyshev, T. Iijima, K. S. Park, Z. Drásal, C. H. Wang, M. Uchida, Y. S. Sohn, T. K. Pedlar, K. Trabelsi, Marko Petrič, C. P. Shen, Satoshi Tanaka, Y. Onuki, D. Liventsev, T. Kuhr, W. S. Hou, A. Moll, H. K. Park, Y. Yamashita, H. J. Hyun, P. Smerkol, H. Nakazawa, Yasushi Nagasaka, T. Mori, H. Aihara, A.E. Bondar, G. S. Varner, D. Matvienko, Y. Miyazaki, R. Itoh, O. Nitoh, P. Wang, A. J. Schwartz, T. A. Shibata, B. G. Cheon, K. Sakai, B. Bhuyan, M. Bischofberger, Norihito Muramatsu, T. E. Browder, D. M. Asner, Y. Hoshi, S.I. Eidelman, V. Vorobyev, V. Bhardwaj, R. Louvot, J. Libby, T. Tsuboyama, V.E. Shebalin, Z. Doležal, C. Liu, R. Mizuk, K. Hayasaka, V.M. Aulchenko, Yueh-Feng Liu, V. Gaur, M. Nakao, Yasuyuki Horii, K. T. Kim, C. Z. Yuan, G. B. Mohanty, Sunmin Ryu, Y. Unno, E. Won, I. Adachi, K. Kinoshita, K. Senyo, P. Pakhlov, A. Kuzmin, Z. P. Zhang, J. B. Kim, S. Ogawa, H. O. Kim, Hitoshi Yamamoto, A. Bozek, S. Koblitz, K. Belous, S. Korpar, Samo Stanič, Peter Kodys, B. Golob, J. S. Lange, Anton Poluektov, T. Iwashita, H. Hayashii, C. Kiesling, A. Chen, M. Bračko, Frank Simon, Y. Sakai, H. Sahoo, and E. Solovieva
Subjects: Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, media_common.quotation_subject, Electron–positron annihilation, General Physics and Astronomy, 7. Clean energy, 01 natural sciences, Asymmetry, Luminosity, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, CP violation, High Energy Physics::Experiment, 010306 general physics, Collider, media_common
Abstract: We observe evidence for CP violation in the decay D+ → K(S)(0)π+ using a data sample with an integrated luminosity of 977 fb(-1) collected by the Belle detector at the KEKB e+ e- asymmetric-energy collider. The CP asymmetry in the decay is measured to be (-0.363±0.094±0.067)%, which is 3.2 standard deviations away from zero, and is consistent with the expected CP violation due to the neutral kaon in the final state.
Published: 2012

135. Search for the decayB0→DK*0followed byD→K−π+

Author: M. Röhrken, K. Chilikin, J. Dalseno, Phillip Urquijo, T. A. Shibata, Tagir Aushev, Y. Onuki, Norihito Muramatsu, Y. Yamashita, R. Pestotnik, Toru Iijima, K. Miyabayashi, M. J. Kim, T. Iwashita, Yueh-Feng Liu, T. Uglov, I. Adachi, V. Zhilich, K. Belous, A. J. Schwartz, Chang Liu, A. M. Bakich, V. Gaur, M. Shapkin, M. Sumihama, P. Kody, K. Negishi, T. E. Browder, Jung-Hyun Kim, Marko Petrič, H. J. Hyun, P. Smerkol, Z. Q. Liu, K. Sakai, M. Uchida, M. C. Chang, G. Pakhlova, M. Starič, A. Ishikawa, B. G. Cheon, D. Matvienko, Y. Miyazaki, M. Nakao, M. Iwabuchi, K. Inami, J. Libby, A. Chen, T. K. Pedlar, Y. Iwasaki, I. S. Cho, Y. Watanabe, J. G. Shiu, B. R. Ko, O. Schneider, S. Nishida, Y. Unno, T. Kuhr, Y. S. Sohn, A. Moll, Samo Korpar, T. Kawasaki, H. J. Kim, Z. Drásal, H. Miyata, J. H. Kang, D. M. Asner, G. Tatishvili, K. Nishimura, J. Haba, Z. Doleal, Hiroaki Aihara, T. Julius, Po-Hsun Chen, S. Okuno, James E. Fast, H. Hayashii, R. Chistov, Pavel Krokovny, O. Nitoh, S. Ogawa, B.A. Shwartz, Semen Eidelman, Yongsun Kim, S. Uno, E. Nakano, C. H. Wang, C. Schwanda, Sunmin Ryu, M. Z. Wang, B. Bhuyan, Vladimir Zhulanov, Zhenyu Zhang, K. T. Kim, Anze Zupanc, K. Trabelsi, R. Itoh, M. E. Sevior, P. Wang, S. Suzuki, Hitoshi Yamamoto, C. C. Zhang, M. Watanabe, R. Louvot, H. K. Park, Bruce Yabsley, V.E. Shebalin, K. Cho, W. S. Hou, E. Won, Yasuyuki Horii, A.L. Sibidanov, A. Drutskoy, A.E. Bondar, V. Vorobyev, G. Varner, Y. Hoshi, Y. Choi, Y. Ban, Y. M. Goh, S. H. Lee, Kevin Varvell, D. Mohapatra, T. Sumiyoshi, S. McOnie, Y. Sakai, Richard T. Kouzes, T. Ohshima, N. Gabyshev, T. Sanuki, Y. Teramoto, J. B. Kim, Samo Stanič, E. Solovieva, Y. J. Kwon, K. Senyo, Leo Piilonen, C. Kiesling, and Frank Simon
Subjects: Physics, Nuclear and High Energy Physics, KEKB, 010308 nuclear & particles physics, 0103 physical sciences, Pi, Analytical chemistry, Resonance, CP violation, 010306 general physics, 01 natural sciences, Bar (unit)
Abstract: We report a study of the decay B-0 -> DK+ pi(-) followed by D -> K- pi(+) , where D indicates D-0 or (D) over bar (0). We reconstruct the DK+ pi(-) state in a phase space corresponding to DK*(892)(0). The CP-violating angle phi(3) affects its decay rate via the interference between b -> u and b -> c transitions. The result is obtained from a 711 fb(-1) data sample that contains 772 X 10(6)B (B) over bar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. We measure the ratio R-DK*0 Gamma(B-0 -> [K- pi(+) ](D)K+ pi(-))/Gamma(B-0 -> [K+ pi(-)](D)K+ pi(-)) to be (4.5(-5.0-1.8)(+5.6+2.8)) X 10(-2), and set an upper limit of R-DK*0 < 0.16 at the 95% credible interval.
Published: 2012

136. First measurement ofϕ3with a model-independent Dalitz plot analysis ofB±→DK±,D→KS0π+π−decay

Author: Andrey Sokolov, Y. Yamashita, J. H. Kang, Marko Petrič, H. J. Hyun, P. Smerkol, James E. Fast, S. Okuno, A. Ishikawa, C. W. Park, P. Križan, D. Matvienko, T. A. Shibata, H. Miyata, M. Bischofberger, Y. Hoshi, Bruce Yabsley, K. Arinstein, R. Mizuk, O. Nitoh, D. M. Asner, B. G. Cheon, Kevin Varvell, J. Yamaoka, C. H. Wang, Yasuyuki Horii, V.N. Zhilich, K. M. Williams, P. Chang, M. C. Chang, G. Bonvicini, J. Haba, G. Tatishvili, S. Uehara, Y. Watanabe, Hiroaki Aihara, R. Louvot, K. Sumisawa, A. Vinokurova, O. Seon, T. Mori, Yoshinobu Unno, Jung-Hyun Kim, Meng Wang, M. Iwabuchi, C. Z. Yuan, T. Kawasaki, K. Belous, S. Korpar, J. Libby, M. Feindt, K. Miyabayashi, Stephen L. Olsen, M. Uchida, P. Krokovny, T. Sumiyoshi, K. Cho, Frank Simon, Peter Kodys, Sang Hoon Lee, J. G. Shiu, V. Gaur, T. Sanuki, D. Liventsev, J. B. Kim, L. E. Piilonen, J. Dalseno, M. Nakao, Yang Li, Phillip Urquijo, G. Pakhlova, Anze Zupanc, A.L. Sibidanov, M. Ritter, Y. B. Hsiung, D. Epifanov, B.A. Shwartz, K. Prothmann, B. R. Ko, Sunmin Ryu, Y. Choi, G. S. Varner, T. Julius, A. J. Schwartz, H. J. Kim, Y. Sakai, K. S. Park, R. Chistov, Vladimir Zhulanov, E. Won, M. E. Sevior, Chang Liu, K. Trabelsi, R. Itoh, T. K. Pedlar, A. M. Bakich, Z. Natkaniec, A. Moll, T. Ohshima, M. Shapkin, B. Kronenbitter, P. Wang, M. Röhrken, K. Chilikin, Z. Q. Liu, Norihito Muramatsu, H. O. Kim, Hitoshi Yamamoto, E. Solovieva, Y. M. Goh, S. Ogawa, T. Aushev, P. Vanhoefer, E. Nakano, R. Pestotnik, Y. Sato, G. B. Mohanty, A. Garmash, J. Li, Jasvinder A. Singh, Yongsun Kim, S. Uno, C. Schwanda, Yasushi Nagasaka, Zhenyu Zhang, K. T. Kim, B. Golob, K. Senyo, S.I. Eidelman, V.M. Aulchenko, Yueh-Feng Liu, W. S. Hou, A.E. Bondar, Z. Doležal, T. Iijima, T. Kuhr, M. Rozanska, S. Nishida, K. Kinoshita, Anton Poluektov, H. Hayashii, H. Park, A. Bozek, S. Koblitz, A. Drutskoy, B. Bhuyan, T. E. Browder, N. Gabyshev, Samo Stanič, C. Kiesling, M. Bračko, Y. S. Sohn, M. J. Kim, M. Starič, T. Kumita, H. Sahoo, V. Vorobyev, Y. J. Kwon, O. Schneider, A.S. Kuzmin, and H. K. Park
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Unitarity, 010308 nuclear & particles physics, Electron–positron annihilation, Resonance, Dalitz plot, 01 natural sciences, Belle experiment, Amplitude, 0103 physical sciences, Pi, 010306 general physics, Bar (unit)
Abstract: We present the first measurement of the angle phi(3) of the unitarity triangle using a model-independent Dalitz plot analysis of B-+/- -> DK +/-, D -> K-S(0)pi(+)pi(-) ecays. The method uses, as input, measurements of the strong phase of the D -> K-S(0)pi(+)pi(-) amplitude from the CLEO Collaboration. The result is based on the full data set of 772 x 10(6) B (B) over bar pairs collected by the Belle experiment at the Gamma(4S) resonance. We obtain phi(3) = (77.3(-14.9)(+15.1) +/- 4.1 +/- 4.3)degrees and the suppressed amplitude ratio r(B) = 0.145 +/- 0.030 +/- 0.010 +/- 0.011. Here the first error is statistical, the second is the experimental systematic uncertainty, and the third is the error due to the precision of the strong-phase parameters obtained by CLEO.
Published: 2012

137. Observation of New Resonant Structures inγγ→ωϕ,ϕϕ, andωω

Author: Marko Petrič, H. J. Hyun, P. Smerkol, Yukinori Sato, J. G. Shiu, D. Matvienko, J. Dalseno, Phillip Urquijo, Y. Miyazaki, I. S. Cho, T. Mori, H. Aihara, T. Aushev, J. Li, M. Ritter, C. P. Shen, D. M. Asner, Y. S. Sohn, P. Pakhlov, P. Kodý, L. E. Piilonen, R. Mussa, C. Liu, D. Epifanov, V.N. Zhilich, B. R. Ko, K. Senyo, A. Ishikawa, A. M. Bakich, T. Ohshima, G. Tatishvili, H. Hayashii, Frank Simon, G. Pakhlova, R. Mizuk, V. Gaur, C. W. Park, E. Nakano, A. Bozek, C. H. Wang, S. Koblitz, Yang Li, Y. Choi, M. Nakao, Z. Q. Liu, B.A. Shwartz, S. Uehara, Y. Iwasaki, T. K. Pedlar, B. G. Cheon, S. McOnie, B. Bhuyan, N. Gabyshev, A. Moll, M. Shapkin, K. Miyabayashi, Y. J. Kwon, O. Nitoh, T. E. Browder, H. J. Kim, T. Kawasaki, Andrey Sokolov, M. Uchida, T. Nozaki, O. Schneider, T. Julius, Po-Hsun Chen, R. Chistov, J. H. Kang, H. Nakazawa, P. Krian, M. Röhrken, T. Iijima, K. Nishimura, C. C. Zhang, D. Liventsev, K. Belous, J. S. Lange, S. Korpar, R. Seidl, Y. M. Goh, S. Nishida, Z. Doleal, M. Watanabe, James E. Fast, A.E. Bondar, H. Sahoo, G. S. Varner, X. L. Wang, C. Z. Yuan, H. K. Park, Y. Yamashita, Z. P. Zhang, H. O. Kim, T. Uglov, A. Vinokurova, R. Pestotnik, Vladimir Zhulanov, M. C. Chang, R. Itoh, Norihito Muramatsu, Z. Drásal, P. Krokovny, M. E. Sevior, R. Louvot, W. S. Hou, P. Wang, K. T. Kim, K. Cho, M. J. Kim, P. Chang, T. A. Shibata, H. Miyata, M. Iwabuchi, M. Bischofberger, Y. Sakai, S. K. Choi, Y. Hoshi, S.I. Eidelman, A. Garmash, K. Inami, M. Starič, V.E. Shebalin, V. Vorobyev, A. Kuzmin, T. Kumita, Y. Unno, K. Hayasaka, K. M. Williams, I. Adachi, A. Chen, V. Bhardwaj, C. Ng, T. Sumiyoshi, S. Ogawa, J. B. Kim, E. Solovieva, Sang Hoon Lee, Yasuyuki Horii, G. B. Mohanty, Yasushi Nagasaka, T. Sanuki, Sunmin Ryu, E. Won, J. Haba, Y. Yusa, J. Libby, S. L. Olsen, A.L. Sibidanov, K. Sakai, Y. B. Hsiung, X. R. Li, T. Iwashita, S. Okuno, Yongsun Kim, S. Uno, C. Schwanda, Y. Teramoto, C. Kiesling, M. Bračko, Samo Stanič, Y. Watanabe, Y. Onuki, and V.M. Aulchenko
Subjects: Physics, Nuclear physics, Particle physics, KEKB, Meson, 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, High Energy Physics::Experiment, Vector meson, 010306 general physics, 01 natural sciences
Abstract: The processes γγ → ωϕ, ϕϕ, and ωω are measured using an 870 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. Production of vector meson pairs is clearly observed and their cross sections are measured for masses that range from threshold to 4.0 GeV. In addition to signals from well established spin-zero and spin-two charmonium states, there are resonant structures below charmonium threshold, which have not been previously observed. We report a spin-parity analysis for the new structures and determine the products of the η(c), χ(c0), and χ(c2) two-photon decay widths and branching fractions to ωϕ, ϕϕ, and ωω.
Published: 2012

138. Evidence for the η(b)(2S) and observation of h(b)(1P)→η(b)(1S)γ and h(b)(2P)→η(b)(1S)γ

Author: R, Mizuk, D M, Asner, A, Bondar, T K, Pedlar, I, Adachi, H, Aihara, K, Arinstein, V, Aulchenko, T, Aushev, T, Aziz, A M, Bakich, A, Bay, K, Belous, V, Bhardwaj, B, Bhuyan, M, Bischofberger, G, Bonvicini, A, Bozek, M, Bračko, J, Brodzicka, T E, Browder, V, Chekelian, A, Chen, P, Chen, B G, Cheon, K, Chilikin, R, Chistov, I-S, Cho, K, Cho, S-K, Choi, Y, Choi, J, Dalseno, M, Danilov, Z, Doležal, Z, Drásal, A, Drutskoy, S, Eidelman, D, Epifanov, J E, Fast, V, Gaur, N, Gabyshev, A, Garmash, B, Golob, J, Haba, T, Hara, K, Hayasaka, H, Hayashii, Y, Horii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, T, Iijima, A, Ishikawa, R, Itoh, M, Iwabuchi, Y, Iwasaki, T, Iwashita, I, Jaegle, T, Julius, J H, Kang, P, Kapusta, T, Kawasaki, H J, Kim, H O, Kim, J H, Kim, K T, Kim, M J, Kim, Y J, Kim, K, Kinoshita, B R, Ko, S, Koblitz, P, Kodyš, S, Korpar, R T, Kouzes, P, Križan, P, Krokovny, T, Kuhr, T, Kumita, A, Kuzmin, Y-J, Kwon, J S, Lange, S-H, Lee, J, Li, J, Libby, C, Liu, Y, Liu, Z Q, Liu, D, Liventsev, R, Louvot, D, Matvienko, S, McOnie, K, Miyabayashi, H, Miyata, G B, Mohanty, D, Mohapatra, A, Moll, N, Muramatsu, R, Mussa, M, Nakao, Z, Natkaniec, C, Ng, S, Nishida, K, Nishimura, O, Nitoh, T, Nozaki, T, Ohshima, S, Okuno, S L, Olsen, Y, Onuki, P, Pakhlov, G, Pakhlova, C W, Park, H, Park, R, Pestotnik, M, Petrič, L E, Piilonen, A, Poluektov, M, Röhrken, Y, Sakai, S, Sandilya, D, Santel, T, Sanuki, Y, Sato, O, Schneider, C, Schwanda, K, Senyo, O, Seon, M E, Sevior, M, Shapkin, C P, Shen, T-A, Shibata, J-G, Shiu, B, Shwartz, A, Sibidanov, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, S, Stanič, M, Starič, M, Sumihama, T, Sumiyoshi, K, Tanida, G, Tatishvili, Y, Teramoto, I, Tikhomirov, K, Trabelsi, T, Tsuboyama, M, Uchida, S, Uehara, T, Uglov, Y, Unno, S, Uno, P, Vanhoefer, G, Varner, K E, Varvell, A, Vinokurova, V, Vorobyev, C H, Wang, M-Z, Wang, P, Wang, X L, Wang, M, Watanabe, Y, Watanabe, K M, Williams, E, Won, B D, Yabsley, J, Yamaoka, Y, Yamashita, C Z, Yuan, Z P, Zhang, and V, Zhilich
Subjects: Photons, Quantum Theory, Nuclear Physics
Abstract: We report the first evidence for the η(b)(2S) using the h(b)(2P)→η(b)(2S)γ transition and the first observation of the h(b)(1P)→η(b)(1S)γ and h(b)(2P)→η(b)(1S)γ transitions. The mass and width of the η(b)(1S) and η(b)(2S) are measured to be m(η(b)(1S))=(9402.4±1.5±1.8) MeV/c(2), m(η(b)(2S))=(9999.0±3.5(-1.9)(+2.8)) MeV/c(2), and Γ(η(b)(1S))=(10.8(-3.7-2.0)(+4.0+4.5)) MeV. We also update the h(b)(1P) and h(b)(2P) mass measurements. We use a 133.4 fb(-1) data sample collected at energies near the Υ(5S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
Published: 2012

139. Measurements of branching fractions and time-dependentCPviolating asymmetries inB0→D(*)±D∓decays

Author: M. Iwabuchi, Yukinori Sato, Y. F. Liu, H. Yamamoto, Y. Iwasaki, Y. J. Kwon, L. E. Piilonen, G. Pakhlova, Anton Poluektov, A. M. Bakich, J. G. Shiu, D. Zander, K. S. Park, H. Miyata, A. Ishikawa, M. Barrett, V. Bhardwaj, T. K. Pedlar, O. Schneider, T. Iijima, E. Nakano, A. J. Schwartz, Byeong Rok Ko, Norihito Muramatsu, T. Ohshima, B. Bhuyan, Phillip Urquijo, G. B. Mohanty, M. Bischofberger, A. Moll, S. L. Olsen, Z. P. Zhang, Yasushi Nagasaka, P. Križan, T. E. Browder, Y. Hoshi, H. Hayashii, A. Chen, Hyunyong Kim, T. Kuhr, N. Gabyshev, Y. B. Li, H. O. Kim, T. Julius, Z. Drásal, O. Brovchenko, Y. Unno, Po-Hsun Chen, J. B. Kim, K. Senyo, M. J. Kim, G. Bonvicini, M. Starič, J. Li, Yasuyuki Horii, T. Kawasaki, S. Eidelman, M. Z. Wang, K. Kinoshita, S. Uehara, M. Uchida, T. Kumita, B. G. Cheon, Peter Kodys, D. Liventsev, P. Krokovny, Y. S. Sohn, V.N. Zhilich, Y. Choi, Richard T. Kouzes, M. Shapkin, M. Feindt, K. Cho, H. Park, A. Bozek, J. Dalseno, G. S. Varner, M. Röhrken, K. Chilikin, Y. J. Kim, S. Koblitz, Samo Stanič, C. Liu, H. Ozaki, A. Drutskoy, K. Belous, Andrey Sokolov, R. Louvot, S. Korpar, R. Itoh, V. M. Aulchenko, Y. M. Goh, S. Nishida, K. Miyabayashi, P. Wang, R. Mizuk, K. Trabelsi, I. Adachi, J. H. Kang, C. P. Shen, W. S. Hou, S. H. Lee, Y. B. Hsiung, K. Prothmann, R. Pestotnik, T.-A. Shibata, T. Sumiyoshi, C. Kiesling, V. Gaur, V. V. Zhulanov, T. Aushev, Martin Ritter, M. Bračko, M. Nakao, V. Vorobyev, B. Shwartz, T. Sanuki, Sunmin Ryu, A.L. Sibidanov, M. C. Chang, C. W. Park, E. Won, S. Uno, C. Schwanda, A.E. Bondar, P. Vanhoefer, Kevin Varvell, K. M. Williams, Z. Doležal, T. Mori, H. Aihara, K. T. Kim, J. B. Singh, Z. Q. Liu, Z. Natkaniec, J. Libby, M. T. Prim, Jung-Hyun Kim, I. S. Cho, S. Okuno, C. H. Wang, H. Sahoo, J. E. Fast, Y. Watanabe, K. Sumisawa, D. M. Asner, S. Ogawa, M. Watanabe, H. K. Park, Y. Yamashita, Marko Petrič, H. J. Hyun, P. Smerkol, M. E. Sevior, B. Kronenbitter, J. Haba, Y. Sakai, A. Zupanc, O. Nitoh, E. Solovieva, O. Seon, Frank Simon, and A. Garmash
Subjects: Combinatorics, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, 01 natural sciences
Abstract: We report measurements of branching fractions and time-dependent $CP$ asymmetries in ${B}^{0}\ensuremath{\rightarrow}{D}^{+}{D}^{\ensuremath{-}}$ and ${B}^{0}\ensuremath{\rightarrow}{D}^{*\ifmmode\pm\else\textpm\fi{}}{D}^{\ensuremath{\mp}}$ decays using a data sample that contains $(772\ifmmode\pm\else\textpm\fi{}11)\ifmmode\times\else\texttimes\fi{}{10}^{6}B\overline{B}$ pairs collected at the $\ensuremath{\Upsilon}(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. We determine the branching fractions to be $\mathcal{B}({B}^{0}\ensuremath{\rightarrow}{D}^{+}{D}^{\ensuremath{-}})=(2.12\ifmmode\pm\else\textpm\fi{}0.16\ifmmode\pm\else\textpm\fi{}0.18)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ and $\mathcal{B}({B}^{0}\ensuremath{\rightarrow}{D}^{*\ifmmode\pm\else\textpm\fi{}}{D}^{\ensuremath{\mp}})=(6.14\ifmmode\pm\else\textpm\fi{}0.29\ifmmode\pm\else\textpm\fi{}0.50)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$. We measure $CP$ asymmetry parameters ${\mathcal{S}}_{{D}^{+}{D}^{\ensuremath{-}}}=\ensuremath{-}{1.06}_{\ensuremath{-}0.14}^{+0.21}\ifmmode\pm\else\textpm\fi{}0.08$ and ${\mathcal{C}}_{{D}^{+}{D}^{\ensuremath{-}}}=\ensuremath{-}0.43\ifmmode\pm\else\textpm\fi{}0.16\ifmmode\pm\else\textpm\fi{}0.05$ in ${B}^{0}\ensuremath{\rightarrow}{D}^{+}{D}^{\ensuremath{-}}$ and ${\mathcal{A}}_{{D}^{*}D}=+0.06\ifmmode\pm\else\textpm\fi{}0.05\ifmmode\pm\else\textpm\fi{}0.02$, ${\mathcal{S}}_{{D}^{*}D}=\ensuremath{-}0.78\ifmmode\pm\else\textpm\fi{}0.15\ifmmode\pm\else\textpm\fi{}0.05$, ${\mathcal{C}}_{{D}^{*}D}=\ensuremath{-}0.01\ifmmode\pm\else\textpm\fi{}0.11\ifmmode\pm\else\textpm\fi{}0.04$, $\ensuremath{\Delta}{\mathcal{S}}_{{D}^{*}D}=\ensuremath{-}0.13\ifmmode\pm\else\textpm\fi{}0.15\ifmmode\pm\else\textpm\fi{}0.04$ and $\ensuremath{\Delta}{\mathcal{C}}_{{D}^{*}D}=+0.12\ifmmode\pm\else\textpm\fi{}0.11\ifmmode\pm\else\textpm\fi{}0.03$ in ${B}^{0}\ensuremath{\rightarrow}{D}^{*\ifmmode\pm\else\textpm\fi{}}{D}^{\ensuremath{\mp}}$, where the first uncertainty is statistical and the second is systematic. We exclude the conservation of $CP$ symmetry in both decays at equal to or greater than $4\ensuremath{\sigma}$ significance.
Published: 2012

140. Measurement ofB0→J/ψη(′)and constraint on theη−η′mixing angle

Author: D. M. Asner, G. Tatishvili, Z. Natkaniec, T. Ohshima, Y. Teramoto, Y. Yamashita, Z. Drásal, E. Solovieva, R. Mizuk, Zhenyu Zhang, K. T. Kim, A. Bozek, Anze Zupanc, M. Starič, Y. Watanabe, J. G. Shiu, S. K. Choi, S. Koblitz, A. Drutskoy, J. Dalseno, Phillip Urquijo, M. J. Kim, K. M. Williams, A. Ishikawa, H. Sahoo, Marko Petrič, Yasuyuki Horii, A. Chen, Y. Unno, Yongsun Kim, M. Nakao, C. Schwanda, C. W. Park, P. Križan, T. A. Shibata, T. Uglov, J. B. Kim, H. J. Hyun, P. Smerkol, T. Kumita, Leo Piilonen, T. E. Browder, M. Röhrken, K. Chilikin, B. G. Cheon, Frank Simon, K. S. Park, Y. Miyazaki, Andrey Sokolov, K. Nishimura, James E. Fast, A.E. Bondar, M. Sumihama, Y. C. Duh, S. H. Lee, S. Nishida, T. K. Pedlar, Semen Eidelman, A. Garmash, T. Iwashita, Pavel Krokovny, Y. Choi, Z. Doležal, Samo Stanič, A. Moll, Y. J. Kwon, T. Kuhr, H. Miyata, Samo Korpar, S. McOnie, Y. S. Sohn, B. Golob, Y. Iwasaki, R. Louvot, Satoshi Tanaka, I. S. Cho, B. Bhuyan, K. Senyo, K. Hayasaka, O. Schneider, E. Nakano, G. B. Mohanty, Z. Q. Liu, J. S. Lange, Y. Yusa, R. Pestotnik, T. Julius, Y. Sakai, O. Nitoh, Yasushi Nagasaka, S. L. Olsen, Po-Hsun Chen, C. P. Shen, Jolanta Brodzicka, R. Chistov, I. Nakamura, C. H. Wang, Peter Kodys, S. Uno, Hiroaki Aihara, T. Kawasaki, Sunmin Ryu, E. Won, V. Zhilich, K. Miyabayashi, Yang Li, T. Peng, J. Li, M. Bračko, C. Z. Yuan, Hitoshi Yamamoto, T. Hara, A.L. Sibidanov, R. Itoh, T. Sumiyoshi, W. S. Hou, P. Wang, Y. M. Goh, H. O. Kim, V. Vorobyev, H. Nakazawa, A. J. Schwartz, V. Bhardwaj, V. Gaur, Chang Liu, M. Shapkin, G. Varner, M. C. Chang, Y. Hoshi, Rakesh Kumar, M. Iwabuchi, Y. Usov, P. Chang, K. Adamczyk, Vladimir Zhulanov, M. E. Sevior, J. Haba, J. Y. Lin, K. Sakai, J. Libby, B. R. Ko, H. Hayashii, M. Z. Wang, K. Kinoshita, Norihito Muramatsu, Toru Iijima, K. F. Chen, S. Uehara, N. Katayama, S. Okuno, I. Adachi, A. M. Bakich, S. Ogawa, M. Uchida, G. Pakhlova, and Tagir Aushev
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, KEKB, Electron–positron annihilation, High Energy Physics::Experiment, Nuclear Experiment
Abstract: We measure the branching fractions of B-0 -> J/psi eta((')) decays with the complete Belle data sample of 772 x 10(6) B (B) over bar events collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The results for the branching fractions are: B(B-0 -> J/psi eta) = (12.3 +/-(1.8)(1.7)+/- 0.7) x 10(-6) and B(B-0 -> J/psi eta') < 7.4 x 10(-6) at 90% confidence level. The eta-eta' mixing angle is constrained to be less than 42.2 degrees at 90% confidence level.
Published: 2012

141. First Observation ofBs0→J/ψηandBs0→J/ψη′

Author: E. Won, A. Bozek, Satoshi Tanaka, K. Arinstein, R. Mizuk, C. H. Wang, D. M. Asner, Y. Teramoto, Stephen Lars Olsen, E. Nakano, Yukinori Sato, V. Gaur, A.E. Bondar, M. Shapkin, G. B. Mohanty, M. Röhrken, M. Bischofberger, Nagao Kobayashi, P. Kapusta, V. Zhilich, Y. F. Liu, H. Nakazawa, M. C. Chang, O. Brovchenko, O. Nitoh, B Bhuyan, Y. Iwasaki, K. Hayasaka, A. J. Schwartz, N. Katayama, Rakesh Kumar, Phillip Urquijo, H. Sahoo, Chang Liu, M. Iwabuchi, T. A. Shibata, S. Okuno, A. Ishikawa, Leo Piilonen, I. Adachi, J. Li, Y. Choi, M. Nakao, M. Sumihama, P. Kody, O. Schneider, R. Louvot, C. W. Park, K. M. Williams, A. Chen, Y. Unno, A. Vossen, T. Kuhr, J. Dalseno, S. Nishida, T. Sumiyoshi, A. M. Bakich, M. Bračko, H. O. Kim, P. Wang, V.E. Shebalin, Zhenyu Zhang, S. Esen, O. Seon, Y. S. Sohn, Frank Simon, K. Inami, Anze Zupanc, Andrey Sokolov, V. Bhardwaj, M. J. Kim, M. J. Lee, A.S. Kuzmin, I. Nakamura, Norihito Muramatsu, S. K. Choi, S. H. Lee, T. Peng, K. Nishimura, Pavel Krokovny, S. McOnie, J. Libby, J. E. Fast, J. Haba, B. R. Ko, T. Hara, Y. B. Hsiung, Toru Iijima, Kevin Varvell, M. Watanabe, K. Cho, Marko Petrič, M. Starič, Semen Eidelman, J. H. Kang, H. J. Hyun, P. Smerkol, Yongsun Kim, P. Krian, T. Ohshima, Y. Watanabe, T. Mori, Y. Sakai, K. Trabelsi, Y. M. Goh, H. K. Park, C. P. Shen, Yasuyuki Horii, J. G. Shiu, Y. Usov, C. Schwanda, A. Garmash, T. Kawasaki, H. Hayashii, Z. Natkaniec, W. S. Hou, B. G. Cheon, T. Julius, Po-Hsun Chen, R. Chistov, Z. Q. Liu, M. T. Prim, D. Matvienko, H. J. Kim, Y. Miyazaki, Z. Doleal, Y. Li, Hiroaki Aihara, R. Pestotnik, K. Kinoshita, T. Iwashita, T. E. Browder, J. Wicht, C. Z. Yuan, K. Senyo, Tagir Aushev, J. S. Lange, M. E. Sevior, Samo Korpar, G. Varner, S. Ogawa, Y. Hoshi, W. Ostrowicz, S. Stanič, Y. Yamashita, K. Sakai, V.M. Aulchenko, S. Uno, Sunmin Ryu, R. Itoh, M. Uchida, T. Sanuki, Sadaharu Uehara, G. Pakhlova, J. B. Kim, V. Vorobyev, Y. J. Kwon, A. Drutskoy, K. T. Kim, G. Tatishvili, K. S. Park, T. K. Pedlar, A. Moll, and D. Liventsev
Subjects: Physics, KEKB, 010308 nuclear & particles physics, 0103 physical sciences, Analytical chemistry, General Physics and Astronomy, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment, 010306 general physics, 01 natural sciences
Abstract: We report first observations of B-s(0) -> J/psi eta and B-s(0) -> J/psi eta'. The results are obtained from 121.4 fb(-1) of data collected at the Gamma(5S) resonance with the Belle detector at the KEKB e(+)e(-) collider. We obtain the branching fractions B(B-s(0)-> J/psi eta')=[5.10 +/- 0.50(stat)+/- 0.25(syst)(-0.79)(+1.14)(N-Bs(*)(B) over bars(*)] X 10(-4,) B(B-s(0)-> J/psi eta') = [3.71 +/- 0.61(stat)+/-(+0.83)(-0.57)(N-Bs(*)(B) over bars(*)] X 10(-4). The ratio of the two branching fractions is measured to be B(B-s -> J/psi eta')/B(B-s -> J/psi eta) = 0.73 +/- 0.14(stat) +/- 0.02(syst).
Published: 2012

142. Search for time-dependentCPTviolation in hadronic and semileptonicBdecays

Author: J. Haba, T. Tsuboyama, B.A. Shwartz, Vladimir Zhulanov, M. E. Sevior, H. O. Kim, Tagir Aushev, J. Libby, Y. Onuki, H. Sahoo, D. M. Asner, Zhenyu Zhang, R. Louvot, A. Bozek, M. Watanabe, T. Uglov, M. Sumihama, H. J. Kim, S. H. Lee, Y. B. Hsiung, K. Cho, P. Wang, V.E. Shebalin, Stephen Lars Olsen, I. S. Cho, Norihito Muramatsu, Y. Yamashita, K. T. Kim, M. T. Prim, J. Dalseno, C. Kiesling, S. K. Choi, Y. Li, Y. Iwasaki, A. Vinokurova, Pavel Krokovny, Toru Iijima, O. Nitoh, K. Belous, T. Kuhr, T. Ohshima, T. Iwashita, Satoshi Tanaka, H. Miyata, Y. S. Sohn, O. Schneider, M. Bischofberger, H. K. Park, V.M. Aulchenko, K. Sumisawa, D. Epifanov, M. Uchida, A.L. Sibidanov, Y. Sakai, Y. Sato, G. Pakhlova, P. Chang, G. Tatishvili, A.S. Kuzmin, Yasuyuki Horii, Marko Petrič, W. S. Hou, K. S. Park, O. Brovchenko, K. Hayasaka, S. Stanič, H. J. Hyun, P. Smerkol, T. Julius, G. B. Mohanty, A. Moll, Peter Kodys, G. Varner, Hiroaki Aihara, D. Liventsev, Y. Teramoto, Po-Hsun Chen, B. G. Cheon, Y. Hoshi, D. Matvienko, Z. Natkaniec, S. Okuno, E. Won, C. Z. Yuan, Y. Miyazaki, A.E. Bondar, K. Trabelsi, R. Chistov, P. Kapusta, S. Ogawa, B Bhuyan, I. Adachi, Kevin Varvell, Samo Korpar, C. P. Shen, Y. Nakahama, X. L. Wang, Phillip Urquijo, M. Ritter, T. A. Shibata, S. Nishida, M. Bračko, T. Sumiyoshi, A. M. Bakich, R. Seidl, J. H. Kang, E. Solovieva, Y. Watanabe, T. Mori, Bruce Yabsley, T. Kumita, P. Pakhlov, Y. Usov, Y. Choi, Z. Doležal, T. E. Browder, V. Gaur, M. Shapkin, V. Zhilich, R. Itoh, Leo Piilonen, Yongsun Kim, Sadaharu Uehara, J. B. Kim, C. Schwanda, M. C. Chang, Z. Q. Liu, J. Li, M. Starič, N. Gabyshev, Y. J. Kwon, J. G. Shiu, S. Koblitz, R. Sinha, J. E. Fast, B. R. Ko, Z. Drásal, M. Danilov, H. Hayashii, K. M. Williams, A. Chen, Y. Unno, K. Hara, K. Chilikin, R. Pestotnik, Y. M. Goh, K. Inami, Y. Yusa, M. Röhrken, V. Bhardwaj, B. Golob, H. Nakazawa, A. J. Schwartz, J. S. Lange, Chang Liu, V. Vorobyev, T. Higuchi, S. Uno, M. J. Kim, Sunmin Ryu, S. McOnie, K. Miyabayashi, T. Sanuki, Hitoshi Yamamoto, A. Garmash, T. Kawasaki, C. Ng, K. Senyo, C. H. Wang, Yasushi Nagasaka, A. Ishikawa, A. Bay, T. Nozaki, M. Nakao, C. W. Park, P. Križan, Andrey Sokolov, K. Nishimura, and Semen Eidelman
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Single measurement, Hadron, Resonance, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Collider
Abstract: We report a new sensitive search for C P T violation, which includes improved measurements of the C P T-violating parameter z and the total decay-width difference normalized to the averaged width delta(d) delta(d) of the two B-d mass eigenstates . The results are based on a data sample of 535 x 10(6) B B pairs collected at the Epsilon(4 S) resonance with the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. We obtain Re (z) = [+1.9 +/- 3.7 (stat) +/- 3.3 (syst)] x 10(>-2), qm (z) = [-5.7 +/- 3.3 (stat) +/- 3.3 (syst)] x 10(-3), and delta(d) / delta(d) = [-1.7 +/- 1.8 (stat) +/- 1.1 (syst)] x 10(-2), all of which are consistent with zero. This is the most precise single measurement of these parameters in the neutral B-meson system to date.
Published: 2012

143. Measurement of theCP-Violation Parametersin 2ϕ1with a New Tagging Method at theΥ(5S)Resonance

Author: R. Mizuk, K. T. Kim, Andrey Sokolov, C. Liu, S. K. Choi, B. G. Cheon, W. Ostrowicz, K. Nishimura, H. Kichimi, Marko Petrič, M. Uchida, V. Gaur, G. S. Varner, R. Itoh, P. Wang, M. Nakao, James E. Fast, G. B. Mohanty, H. J. Hyun, T. Kawasaki, I. S. Cho, P. Smerkol, O. Nitoh, T. Sumiyoshi, S. McOnie, H. Nakazawa, E. Nakano, Y. Yusa, Sang Hoon Lee, H. J. Kim, A.E. Bondar, A. J. Schwartz, S. Korpar, B.A. Shwartz, C. Kiesling, T. A. Shibata, H. Miyata, M. Bischofberger, Nagao Kobayashi, D. M. Asner, T. Sanuki, Y. Hoshi, Z. P. Zhang, Z. Doleal, H. O. Kim, J. Stypula, Z. Q. Liu, S.I. Eidelman, C. H. Wang, M. Bračko, L. E. Piilonen, G. Pakhlova, Yukinori Sato, A. Ishikawa, H. K. Park, C. W. Park, H. Sahoo, Y. Yamashita, J. G. Shiu, Vladimir Zhulanov, G. Tatishvili, M. E. Sevior, S. Nishida, J. Dalseno, K. Hayasaka, T. Uglov, Sunmin Ryu, P. Krokovny, T. Aushev, Y. Watanabe, Phillip Urquijo, P. Kapusta, S. Okuno, Satoshi Tanaka, E. Won, K. Cho, T. Julius, Yasuyuki Horii, Kevin Varvell, Po-Hsun Chen, Norihito Muramatsu, R. Chistov, Anze Zupanc, S. K. Kim, D. Epifanov, X. L. Wang, J. Li, H. Aihara, R. Louvot, Y. Teramoto, Bruce Yabsley, R. Seidl, T. Kuhr, A. Kuzmin, Hitoshi Yamamoto, B. R. Ko, Samo Stanič, J. Haba, O. Seon, Frank Simon, T. Iwashita, Y. Onuki, S. Ogawa, V. Bhardwaj, T. K. Pedlar, Tariq Aziz, Y. Sakai, Y. Unno, S. L. Olsen, Yang Li, A. Moll, A. M. Bakich, Z. Natkaniec, T. Ohshima, Y. S. Sohn, Y. Choi, T. Hara, V.N. Zhilich, A.L. Sibidanov, J. B. Kim, P. Chang, Rakesh Kumar, B. Golob, E. Solovieva, K. Senyo, N. Gabyshev, M. Watanabe, B. Bhuyan, Jung-Hyun Kim, P. Krian, V.M. Aulchenko, M. Iwabuchi, T. E. Browder, J. S. Lange, Y. M. Goh, K. Miyabayashi, K. Trabelsi, C. P. Shen, W. S. Hou, J. Wicht, Yongsun Kim, P. Pakhlov, S. Uno, C. Schwanda, H. Park, A. Bozek, M. Sumihama, P. Kody, M. J. Kim, M. Starič, T. Kumita, Y. Iwasaki, Y. J. Kwon, M. Z. Wang, K. Kinoshita, O. Schneider, M. Shapkin, M. Röhrken, K. Chilikin, Anton Poluektov, Z. Drásal, and H. Hayashii
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, media_common.quotation_subject, General Physics and Astronomy, Resonance, Charge (physics), 01 natural sciences, Asymmetry, law.invention, Nuclear physics, KEKB, Pion, law, 0103 physical sciences, CP violation, High Energy Physics::Experiment, B meson, 010306 general physics, Collider, media_common
Abstract: We report a measurement of the CP-violation parameter sin2 phi(1) at the gamma(5S) resonance using a new tagging method, called "B-pi tagging." In gamma(5S) decays containing a neutral B meson, a charged B, and a charged pion, the neutral B is reconstructed in the J/psi K-S(0) CP-eigenstate decay channel. The initial flavor of the neutral B meson at the moment of the gamma(5S) decay is opposite to that of the charged B and may thus be inferred from the charge of the pion without reconstructing the charged B. From the asymmetry between B-pi(+) and B-pi(-) tagged J/psi K-S(0) yields, we determine sin2 phi(1) 0.57 +/- 0.58(stat) +/- 0.06(syst). The results are based on 121 fb(-1) of data recorded by the Belle detector at the KEKB e(+) e(-) collider.
Published: 2012

144. Precise Measurement of theCPViolation Parametersin 2ϕ1inB0→(cc¯)K0Decays

Author: R. Mizuk, H. K. Park, Z. Q. Liu, Y. Yamashita, E. Nakano, Yukinori Sato, C. Liu, J. G. Shiu, K. Sumisawa, P. Kapusta, S. Okuno, J. Dalseno, Frank Simon, V. Gaur, M. Nakao, Y. Teramoto, M. Yamauchi, S. McOnie, A. Vinokurova, P. Krokovny, D. Epifanov, Bruce Yabsley, K. Cho, B. R. Ko, O. Nitoh, Norihito Muramatsu, H. J. Kim, M. Rozanska, L. E. Piilonen, K. S. Park, T. K. Pedlar, G. Tatishvili, H. Nakazawa, B. Golob, Y. F. Liu, G. Pakhlova, Satoshi Tanaka, T. Iijima, P. Krian, A.E. Bondar, A. J. Schwartz, P. Pakhlov, M. Starič, T. Kumita, J. S. Lange, V. Bhardwaj, Z. Doleal, B. G. Cheon, Z. P. Zhang, I. Tikhomirov, K. M. Williams, Y. Unno, S. L. Olsen, C. H. Wang, H. O. Kim, T. Julius, S. E. Vahsen, T. Kuhr, A. Kuzmin, G. B. Mohanty, T. Iwashita, Po-Hsun Chen, Y. Sakai, R. Chistov, V.N. Zhilich, A. Bozek, Y. Iwasaki, W. S. Hou, J. Haba, S. Koblitz, M. Röhrken, K. Chilikin, Y. Yusa, H. Ozaki, S. Ogawa, Y. J. Kwon, S. Korpar, Anze Zupanc, S. Neubauer, K. T. Kim, S. Uehara, K. Miyabayashi, O. Schneider, K. Senyo, B. Bhuyan, M. Watanabe, J. B. Singh, N. Katayama, S. K. Choi, Kevin Varvell, V. Vorobyev, Marko Petrič, T. E. Browder, H. J. Hyun, P. Smerkol, T. Sumiyoshi, Y. B. Hsiung, Tariq Aziz, Yang Li, T. Kawasaki, E. Solovieva, Jung-Hyun Kim, Yongsun Kim, Sang Hoon Lee, A. Garmash, S. Uno, Y. Choi, I. Adachi, A. Ishikawa, A. Bay, T. Hara, R. Pestotnik, T. Mori, H. Aihara, B.A. Shwartz, M. Danilov, T. Higuchi, Z. Drásal, C. Schwanda, D. Matvienko, Y. Miyazaki, J. B. Kim, T. Sanuki, M. Uchida, Y. M. Goh, K. Hara, D. M. Asner, Y. S. Sohn, E. Won, K. Trabelsi, C. P. Shen, S. Nishida, D. Liventsev, Andrey Sokolov, A.L. Sibidanov, H. Sahoo, T. Uglov, G. S. Varner, Hitoshi Yamamoto, K. Nishimura, T. Aushev, T. A. Shibata, H. Miyata, Rakesh Kumar, M. Bischofberger, Y. Hoshi, S.I. Eidelman, R. Itoh, James E. Fast, M. Iwabuchi, P. Wang, K. Hayasaka, J. Li, Yasuyuki Horii, R. Louvot, K. Sakai, V.E. Shebalin, H. Kichimi, T. Tsuboyama, Anton Poluektov, H. Hayashii, M. Z. Wang, K. Kinoshita, Y. Watanabe, Y. Onuki, V.M. Aulchenko, O. Zyukova, M. Sumihama, P. Kody, Y. Ushiroda, C. Kiesling, M. Bračko, Samo Stanič, A. M. Bakich, T. Ohshima, and N. Gabyshev
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, General Physics and Astronomy, Resonance, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, CP violation, High Energy Physics::Experiment, B meson, 010306 general physics, Collider
Abstract: We present a precise measurement of the CP violation parameter sin2 phi(1) and the direct CP violation parameter A(f) using the final data sample of 772 x 10(6) B (B) over bar pairs collected at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. One neutral B meson is reconstructed in a J/psi K-S(0), psi(2S)K-S(0), chi K-c1(S)0, or J/psi K-L(0) CP eigenstate an(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: sin2 phi(1) 0.667 +/- 0.023(stat) +/- 0.012(syst) and A(f) = 0.006 +/- 0.016(stat) +/- 0.012(syst).
Published: 2012

145. Search for double charmonium decays of theP-wave spin-triplet bottomonium states

Author: S. Uno, D. M. Asner, I. S. Cho, T. Sanuki, Stephen Lars Olsen, E. Nakano, S. Ogawa, T. Hara, P. Krian, J. S. Lange, O. Nitoh, B Bhuyan, Z. Q. Liu, S. Okuno, T. Ohshima, K. T. Kim, K. Arinstein, Y. M. Goh, R. Mizuk, I. Adachi, Anze Zupanc, C. H. Wang, J. Haba, H. K. Park, T. Sumiyoshi, S. Koblitz, A. M. Bakich, P. Krokovny, A. Drutskoy, T. Julius, R. Chistov, H. Sahoo, Jasvinder A. Singh, H. Miyata, Phillip Urquijo, M. Ritter, M. Bischofberger, T. A. Shibata, K. Hayasaka, S. Stanič, Leo Piilonen, Marko Petrič, H. J. Hyun, P. Smerkol, C. L. Lim, H. J. Kim, Y. S. Sohn, B. G. Cheon, Y. Yusa, M. Röhrken, Y. Miyazaki, Yongsun Kim, R. Mussa, G. B. Mohanty, Y. Choi, Vladimir Zhulanov, G. Tatishvili, W. S. Hou, A. Ishikawa, C. Schwanda, Samo Korpar, Norihito Muramatsu, Kevin Varvell, M. Nakao, T. K. Pedlar, A. Moll, J. Libby, C. W. Park, Zhenyu Zhang, O. Seon, Frank Simon, Hiroaki Aihara, D. Liventsev, K. Cho, Toru Iijima, S. K. Choi, X. L. Wang, A.L. Sibidanov, C. Z. Yuan, J. H. Kang, E. Won, Y. Watanabe, V. Gaur, M. Shapkin, M. Watanabe, S. H. Lee, M. Uchida, T. Mori, K. Nishimura, G. Varner, G. Pakhlova, M. C. Chang, A. Bozek, Yasuyuki Horii, Y. Hoshi, T. Iwashita, M. Iwabuchi, Semen Eidelman, Y. Sakai, Y. Sato, T. Tsuboyama, R. Itoh, S. Nishida, Sadaharu Uehara, J. B. Kim, Y. Teramoto, H. O. Kim, R. Louvot, P. Wang, N. Gabyshev, Y. J. Kwon, E. Solovieva, J. Dalseno, A. Garmash, C. P. Shen, T. Kawasaki, V. Zhilich, J. Li, K. Senyo, M. J. Kim, S. McOnie, K. Miyabayashi, H. Nakazawa, M. Starič, Chang Liu, J. G. Shiu, Tagir Aushev, Y. Onuki, Y. Yamashita, P. Kody, M. Bračko, Anton Poluektov, J. E. Fast, B. R. Ko, Z. Drásal, H. Hayashii, T. Kumita, T. E. Browder, O. Schneider, A. Chen, Y. Unno, and K. Chilikin
Subjects: Quantum chromodynamics, Physics, Identification, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Belle, FOS: Physical sciences, 01 natural sciences, Kekb, High Energy Physics - Experiment, 3. Good health, Nuclear physics, High Energy Physics - Phenomenology, High Energy Physics - Experiment (hep-ex), Formalism (philosophy of mathematics), High Energy Physics - Phenomenology (hep-ph), KEKB, Factorization, Light cone, 0103 physical sciences, Mass spectrum, High Energy Physics::Experiment, 010306 general physics
Abstract: Using a sample of 158�106 ?(2S) events collected with the Belle detector, we search for the first time for double-charmonium decays of the P-wave spin-triplet bottomonium states (?(2S) ??? bJ, ? bJ?J/?J/?, J/?? ?, ? ?? ? for J=0, 1, and 2). No significant ? bJ signal is observed in the double-charmonium mass spectra, and we obtain the following upper limits: B(? bJ?J/?J/?)&lt, 7.1�10 -5, 2.7�10 -5, 4.5�10 -5, B(? bJ? J/?? ?)&lt, 1.2�10 -4, 1.7�10 -5, 4.9�10 -5, B(? bJ?? ?? ?)&lt, 3. 1�10 -5, 6.2�10 -5, 1.6�10 -5 for J=0, 1, and 2, respectively, at the 90% confidence level. These limits are significantly lower than the central values (with uncertainties of 50% to 70%) predicted using the light cone formalism but are consistent with calculations using the nonrelativistic QCD (NRQCD) factorization approach. � 2012 American Physical Society.
Published: 2012

146. Evidence for CP violation in the decay D+ → K(S)(0)π+

Author: B R, Ko, E, Won, I, Adachi, H, Aihara, D M, Asner, V, Aulchenko, T, Aushev, T, Aziz, A M, Bakich, K, Belous, V, Bhardwaj, B, Bhuyan, M, Bischofberger, A, Bondar, G, Bonvicini, A, Bozek, M, Bračko, T E, Browder, M-C, Chang, A, Chen, P, Chen, B G, Cheon, K, Chilikin, I-S, Cho, K, Cho, Y, Choi, Z, Doležal, Z, Drásal, S, Eidelman, J E, Fast, V, Gaur, N, Gabyshev, A, Garmash, Y M, Goh, B, Golob, J, Haba, K, Hayasaka, H, Hayashii, Y, Horii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, T, Iijima, A, Ishikawa, R, Itoh, M, Iwabuchi, Y, Iwasaki, T, Iwashita, T, Julius, J H, Kang, T, Kawasaki, C, Kiesling, H O, Kim, J B, Kim, K T, Kim, M J, Kim, Y J, Kim, K, Kinoshita, S, Koblitz, P, Kodyš, S, Korpar, P, Križan, P, Krokovny, T, Kuhr, A, Kuzmin, Y-J, Kwon, J S, Lange, S-H, Lee, J, Li, Y, Li, J, Libby, C-L, Lim, C, Liu, Y, Liu, Z Q, Liu, D, Liventsev, R, Louvot, D, Matvienko, Y, Miyazaki, R, Mizuk, G B, Mohanty, A, Moll, T, Mori, N, Muramatsu, Y, Nagasaka, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, S, Nishida, K, Nishimura, O, Nitoh, S, Ogawa, T, Ohshima, S, Okuno, S L, Olsen, Y, Onuki, W, Ostrowicz, P, Pakhlov, G, Pakhlova, C W, Park, H K, Park, K S, Park, T K, Pedlar, R, Pestotnik, M, Petrič, L E, Piilonen, A, Poluektov, M, Ritter, M, Röhrken, S, Ryu, H, Sahoo, K, Sakai, Y, Sakai, T, Sanuki, Y, Sato, O, Schneider, C, Schwanda, A J, Schwartz, R, Seidl, K, Senyo, M E, Sevior, M, Shapkin, V, Shebalin, C P, Shen, T-A, Shibata, J-G, Shiu, B, Shwartz, A, Sibidanov, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, S, Stanič, M, Starič, T, Sumiyoshi, S, Tanaka, G, Tatishvili, Y, Teramoto, K, Trabelsi, T, Tsuboyama, M, Uchida, S, Uehara, Y, Unno, S, Uno, G, Varner, K E, Varvell, A, Vinokurova, V, Vorobyev, C H, Wang, P, Wang, X L, Wang, M, Watanabe, Y, Watanabe, H, Yamamoto, Y, Yamashita, C Z, Yuan, C C, Zhang, Z P, Zhang, V, Zhilich, V, Zhulanov, and A, Zupanc
Abstract: We observe evidence for CP violation in the decay D+ → K(S)(0)π+ using a data sample with an integrated luminosity of 977 fb(-1) collected by the Belle detector at the KEKB e+ e- asymmetric-energy collider. The CP asymmetry in the decay is measured to be (-0.363±0.094±0.067)%, which is 3.2 standard deviations away from zero, and is consistent with the expected CP violation due to the neutral kaon in the final state.
Published: 2012

147. Observation of Two Charged Bottomoniumlike Resonances inΥ(5S)Decays

Author: R. Louvot, V.E. Shebalin, Yongsun Kim, C. Schwanda, I. Adachi, A. Garmash, J. B. Kim, O. Nitoh, G. Tatishvili, Z. Doleal, B.A. Shwartz, Norihito Muramatsu, K. T. Kim, B. G. Cheon, K. Arinstein, R. Mizuk, Vladimir Zhulanov, M. E. Sevior, M. Niiyama, A. Vinokurova, S. E. Vahsen, S. K. Choi, C. Z. Yuan, J. Haba, T. Iwashita, C. Liu, T. Nozaki, Anze Zupanc, S. L. Olsen, T. Iijima, K. Belous, S. Korpar, Sunmin Ryu, Y. Iwasaki, H. Kichimi, Marko Petrič, H. J. Hyun, P. Smerkol, E. Won, Y. Onuki, V. Gaur, S. Uehara, O. Schneider, Frank Simon, T. Kuhr, J. Libby, Z. Q. Liu, K. Cho, D. Matvienko, Y. Miyazaki, Nagao Kobayashi, M. Nakao, S. McOnie, J. G. Shiu, K. Senyo, E. L. Barberio, J. Dalseno, T. Kawasaki, O. Zyukova, M. Yamauchi, D. M. Asner, H. Sahoo, M. C. Chang, A. M. Bakich, Z. Natkaniec, D. Epifanov, M. Uchida, B. R. Ko, Rakesh Kumar, M. Ritter, T. Uglov, D. Santel, M. T. Prim, M. Iwabuchi, N. Gabyshev, M. Sumihama, M. Z. Wang, K. Kinoshita, P. Kody, D. Liventsev, T. A. Shibata, H. Miyata, M. J. Kim, M. Bischofberger, Y. Ushiroda, V. Bhardwaj, T. K. Pedlar, Y. Hoshi, A. Moll, S.I. Eidelman, Satoshi Tanaka, G. S. Varner, M. Starič, T. Kumita, Y. Sakai, K. Hayasaka, C. Kiesling, P. Chang, A.E. Bondar, T. Sumiyoshi, A. Kuzmin, H. Aihara, Y. Watanabe, P. Wang, I. S. Cho, Sang Hoon Lee, Jung-Hyun Kim, M. Bračko, B. Golob, Z. P. Zhang, T. Sanuki, L. E. Piilonen, E. Solovieva, G. Pakhlova, P. Krian, C. H. Wang, T. Aushev, M. Shapkin, J. S. Lange, M. Röhrken, K. Chilikin, K. Inami, J. Li, Y. Teramoto, Bruce Yabsley, Anton Poluektov, H. K. Park, Y. Yamashita, T. Julius, R. Chistov, I. Tikhomirov, K. M. Williams, A. Chen, Andrey Sokolov, J. H. Kang, K. Nishimura, James E. Fast, R. Mussa, A. Ishikawa, V.N. Zhilich, S. Neubauer, Y. S. Sohn, T. E. Browder, M. Danilov, P. Pakhlov, H. Park, A. Bozek, S. Koblitz, A. Drutskoy, S. Nishida, X. L. Wang, Tariq Aziz, Yang Li, Y. Choi, T. Hara, Y. M. Goh, G. B. Mohanty, and Y. Yusa
Subjects: Physics, 010308 nuclear & particles physics, Electron–positron annihilation, Analytical chemistry, General Physics and Astronomy, Resonance, Dalitz plot, Elementary particle, 01 natural sciences, 7. Clean energy, law.invention, Nuclear physics, KEKB, Pion, law, 0103 physical sciences, Mass spectrum, 010306 general physics, Collider
Abstract: We report the observation of two narrow structures in the mass spectra of the pi(+/-) Y(nS) (n = 1, 2, 3) and pi(+/-) h(b)(mP) (m = 1, 2) pairs that are produced in association with a single charged pion in Y(5S) decays. The measured masses and widths of the two structures averaged over the five final states are M-1 = (10 607.2 +/- 2.0) MeV/c(2), Gamma(1) =(18.4 +/- 2.4) MeV, and M-2 = (10 652.2 +/- 1.5) MeV/c(2), Gamma(2) = (11.5 +/- 2.2) MeV. The results are obtained with a 121.4 fb(-1) data sample collected with the Belle detector in the vicinity of the Y(5S) resonance at the KEKB asymmetric-energy e(+)e(-) collider.
Published: 2012

148. Search forCPViolation inD±Meson Decays toϕπ±

Author: T. A. Shibata, H. Miyata, Y. Hoshi, S.I. Eidelman, K. Hayasaka, S. L. Olsen, Y. B. Hsiung, M. Z. Wang, K. Kinoshita, K. Arinstein, C. Kiesling, H. K. Park, W. S. Hou, Y. Yamashita, Z. Q. Liu, Marko Petrič, T. Aushev, O. Nitoh, L. E. Piilonen, S. Nishida, G. Pakhlova, J. G. Shiu, P. Smerkol, M. Uchida, M. J. Kim, M. Röhrken, K. Chilikin, G. B. Mohanty, Nagao Kobayashi, H. Sahoo, T. Iijima, A. J. Schwartz, M. Starič, T. Uglov, Andrey Sokolov, T. Kumita, S. Uehara, K. T. Kim, J. H. Kang, Y. Miyazaki, Y. Sakai, G. S. Varner, T. Julius, C. Z. Yuan, R. Louvot, Phillip Urquijo, R. Pestotnik, I. S. Cho, V.E. Shebalin, Po-Hsun Chen, Sunmin Ryu, R. Chistov, E. Won, R. Itoh, Z. Drásal, James E. Fast, V.N. Zhilich, Peter Kodys, D. M. Asner, Y. Iwasaki, Y. J. Kwon, H. Aihara, K. Trabelsi, K. Sumisawa, J. Li, C. H. Wang, Yasuyuki Horii, Yang Li, O. Schneider, C. P. Shen, K. Miyabayashi, J. B. Kim, C. Liu, G. Tatishvili, Y. Choi, K. Inami, A. Ishikawa, A. Bay, E. Nakano, A. Bozek, V. Gaur, A. Vossen, S. Koblitz, Yongsun Kim, S. Uno, C. Schwanda, B. G. Cheon, B. Golob, P. Križan, C. C. Zhang, Z. Doležal, M. Watanabe, M. Iwabuchi, T. Kawasaki, O. Seon, Frank Simon, B. Bhuyan, S. McOnie, J. S. Lange, H. J. Kim, T. E. Browder, T. Nozaki, K. M. Williams, A. Chen, Anze Zupanc, Y. S. Sohn, Z. P. Zhang, H. O. Kim, S. Korpar, Sang Hoon Lee, Y. Unno, T. Sanuki, T. Iwashita, M. Sumihama, Y. Watanabe, S. Okuno, Y. Teramoto, Bruce Yabsley, J. Libby, M. Bračko, A. M. Bakich, Z. Natkaniec, T. Ohshima, N. Gabyshev, Samo Stanič, J. Haba, K. Cho, B. R. Ko, K. Sakai, K. S. Park, V. Bhardwaj, B.A. Shwartz, Vladimir Zhulanov, and M. E. Sevior
Subjects: Nuclear physics, Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, D meson, General Physics and Astronomy, Resonance, CP violation, 010306 general physics, 01 natural sciences
Abstract: We search for CP violation in Cabibbo-suppressed charged D meson decays by measuring the difference between the CP-violating asymmetries for the Cabibbo-suppressed decays D(±)→K(+)K(-)π(±) and the Cabibbo-favored decays D(s)(±)→K(+)K(-)π(±) in the K(+)K(-) mass region of the ϕ resonance. Using 955 fb(-1) of data collected with the Belle detector, we obtain A(CP)(D+→ϕπ+)=(+0.51±0.28±0.05)%. The measurement improves the sensitivity of previous searches by more than a factor of 5. We find no evidence for direct CP violation.
Published: 2012

149. First observation of B(s)(0) → J/ψη and B(s)(0) → J/ψη'

Author: J, Li, I, Adachi, H, Aihara, K, Arinstein, D M, Asner, V, Aulchenko, T, Aushev, A M, Bakich, V, Bhardwaj, B, Bhuyan, M, Bischofberger, A, Bondar, A, Bozek, M, Bračko, O, Brovchenko, T E, Browder, M-C, Chang, A, Chen, P, Chen, B G, Cheon, R, Chistov, K, Cho, S-K, Choi, Y, Choi, J, Dalseno, Z, Doležal, A, Drutskoy, S, Eidelman, S, Esen, J E, Fast, V, Gaur, A, Garmash, Y M, Goh, J, Haba, T, Hara, K, Hayasaka, H, Hayashii, Y, Horii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, M, Iwabuchi, Y, Iwasaki, T, Iwashita, T, Julius, J H, Kang, P, Kapusta, N, Katayama, T, Kawasaki, H J, Kim, H O, Kim, J B, Kim, K T, Kim, M J, Kim, Y J, Kim, K, Kinoshita, B R, Ko, N, Kobayashi, P, Kodyš, S, Korpar, P, Križan, P, Krokovny, T, Kuhr, R, Kumar, A, Kuzmin, Y-J, Kwon, J S, Lange, M J, Lee, S-H, Lee, Y, Li, J, Libby, C, Liu, Y, Liu, Z Q, Liu, D, Liventsev, R, Louvot, D, Matvienko, S, McOnie, Y, Miyazaki, R, Mizuk, G B, Mohanty, A, Moll, T, Mori, N, Muramatsu, I, Nakamura, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, S, Nishida, K, Nishimura, O, Nitoh, S, Ogawa, T, Ohshima, S, Okuno, S L, Olsen, W, Ostrowicz, G, Pakhlova, C W, Park, H K, Park, K S, Park, T K, Pedlar, T, Peng, R, Pestotnik, M, Petrič, L E, Piilonen, M, Prim, M, Röhrken, S, Ryu, H, Sahoo, K, Sakai, Y, Sakai, T, Sanuki, Y, Sato, O, Schneider, C, Schwanda, A J, Schwartz, K, Senyo, O, Seon, M E, Sevior, M, Shapkin, V, Shebalin, C P, Shen, T-A, Shibata, J-G, Shiu, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, S, Stanič, M, Starič, M, Sumihama, T, Sumiyoshi, S, Tanaka, G, Tatishvili, Y, Teramoto, K, Trabelsi, M, Uchida, S, Uehara, Y, Unno, S, Uno, P, Urquijo, Y, Usov, G, Varner, K E, Varvell, V, Vorobyev, A, Vossen, C H, Wang, P, Wang, M, Watanabe, Y, Watanabe, J, Wicht, K M, Williams, E, Won, Y, Yamashita, C Z, Yuan, Z P, Zhang, V, Zhilich, and A, Zupanc
Subjects: Quantum Theory, Elementary Particles
Abstract: We report first observations of B(s)(0) → J/ψη and B(s)(0) → J/ψη'. The results are obtained from 121.4 fb(-1) of data collected at the Υ(5S) resonance with the Belle detector at the KEKB e+ e- collider. We obtain the branching fractions B(B(s)(0) → J/ψη)=[5.10±0.50(stat)±0.25(syst)(-0.79)(+1.14)(N(B(s)(*) B(s)(*))]×10(-4), and B(B(s)(0) → J/ψη')=[3.71±0.61(stat)±0.18(syst)(-0.57)(+0.83)(N(B(s)(*) B(s)(*))]×10(-4). The ratio of the two branching fractions is measured to be (B(B(s) → J/ψη'))/(B(B(s) → J/ψη))=0.73±0.14(stat)±0.02(syst).
Published: 2012

150. Precise measurement of the CP violation parameter sin2φ1 in B0→(cc¯)K0 decays

Author: I, Adachi, H, Aihara, D M, Asner, V, Aulchenko, T, Aushev, T, Aziz, A M, Bakich, A, Bay, V, Bhardwaj, B, Bhuyan, M, Bischofberger, A, Bondar, A, Bozek, M, Bračko, T E, Browder, P, Chen, B G, Cheon, K, Chilikin, R, Chistov, K, Cho, S-K, Choi, Y, Choi, J, Dalseno, M, Danilov, Z, Doležal, Z, Drásal, S, Eidelman, D, Epifanov, J E, Fast, V, Gaur, N, Gabyshev, A, Garmash, Y M, Goh, B, Golob, J, Haba, K, Hara, T, Hara, K, Hayasaka, H, Hayashii, T, Higuchi, Y, Horii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, T, Iijima, A, Ishikawa, R, Itoh, M, Iwabuchi, Y, Iwasaki, T, Iwashita, T, Julius, P, Kapusta, N, Katayama, T, Kawasaki, H, Kichimi, C, Kiesling, H J, Kim, H O, Kim, J B, Kim, J H, Kim, K T, Kim, Y J, Kim, K, Kinoshita, B R, Ko, S, Koblitz, P, Kodyš, S, Korpar, P, Križan, P, Krokovny, T, Kuhr, R, Kumar, T, Kumita, A, Kuzmin, Y-J, Kwon, J S, Lange, S-H, Lee, J, Li, Y, Li, C, Liu, Y, Liu, Z Q, Liu, D, Liventsev, R, Louvot, D, Matvienko, S, McOnie, K, Miyabayashi, H, Miyata, Y, Miyazaki, R, Mizuk, G B, Mohanty, T, Mori, N, Muramatsu, E, Nakano, M, Nakao, H, Nakazawa, S, Neubauer, S, Nishida, K, Nishimura, O, Nitoh, S, Ogawa, T, Ohshima, S, Okuno, S L, Olsen, Y, Onuki, H, Ozaki, P, Pakhlov, G, Pakhlova, H K, Park, K S, Park, T K, Pedlar, R, Pestotnik, M, Petrič, L E, Piilonen, A, Poluektov, M, Röhrken, M, Rozanska, H, Sahoo, K, Sakai, Y, Sakai, T, Sanuki, Y, Sato, O, Schneider, C, Schwanda, A J, Schwartz, K, Senyo, V, Shebalin, C P, Shen, T-A, Shibata, J-G, Shiu, B, Shwartz, A, Sibidanov, F, Simon, J B, Singh, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, S, Stanič, M, Starič, M, Sumihama, K, Sumisawa, T, Sumiyoshi, S, Tanaka, G, Tatishvili, Y, Teramoto, I, Tikhomirov, K, Trabelsi, T, Tsuboyama, M, Uchida, S, Uehara, T, Uglov, Y, Unno, S, Uno, Y, Ushiroda, S E, Vahsen, G, Varner, K E, Varvell, A, Vinokurova, V, Vorobyev, C H, Wang, M-Z, Wang, P, Wang, M, Watanabe, Y, Watanabe, K M, Williams, E, Won, B D, Yabsley, H, Yamamoto, Y, Yamashita, M, Yamauchi, Y, Yusa, Z P, Zhang, V, Zhilich, A, Zupanc, and O, Zyukova
Abstract: We present a precise measurement of the CP violation parameter sin2φ1 and the direct CP violation parameter A(f) using the final data sample of 772×10(6) BB[over ¯] pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson is reconstructed in a J/ψK(S)(0), ψ(2S)K(S)(0), χ(c1)K(S)(0), or J/ψK(L)(0) 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: sin2φ1=0.667±0.023(stat)±0.012(syst) and A(f)=0.006±0.016(stat)±0.012(syst).
Published: 2012

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