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211 results on '"A.L. Sibidanov"'

151. 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

152. 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

153. 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

154. 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

155. 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

156. 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

157. 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

158. Recent results of the study of hadronic production with the CMD-2 and SND detectors at the VEPP-2M collider

Author: S. I. Serednyakov, N.M. Ryskulov, A. I. Milstein, A.V. Vasiljev, K. Y. Mikhailov, D.N. Grigoriev, A.S. Zaitsev, V.A. Sidorov, D.V. Bondarev, Z. K. Silagadze, Fedor Ignatov, S.E. Baru, E.V. Pakhtusova, I.B. Logashenko, A.E. Bondar, A.L. Sibidanov, Yu.V. Yudin, S.V. Karpov, Alexander Valishev, P. Krokovny, A.N. Skrinsky, A.V. Berdugin, A. Baratt, A.S. Kuzmin, Yuri Shatunov, A.S. Popov, Konstantin Beloborodov, P.A. Lukin, D.A. Bukin, A.V. Otboev, I. A. Koop, D. Epifanov, V.M. Aulchenko, A.A. Ruban, B.A. Shwartz, A. A. Korol, Alexander Bogdanchikov, N.I. Root, T.V. Dimova, S.I. Redin, E.A. Perevedentsev, V.S. Okhapkin, S.V. Koshuba, B.I. Khazin, V. W. Hughes, S.G. Zverev, M. N. Achasov, J. A. Thompson, R.R. Akhmetshin, V. P. Druzhinin, L.M. Barkov, N. Gabyshev, A.A. Polunin, E. P. Solodov, A. P. Lysenko, D.A. Gorbachev, N.S. Bashtovoy, A.A. Grebeniuk, Yu. V. Usov, A.G. Shamov, Vassili Kazanin, A. V. Bozhenok, Igor Nesterenko, G.V. Fedotovitch, I.G. Snopkov, S.I. Eidelman, A. D. Bukin, A.V. Bragin, and V.Sh. Banzarov
Subjects: Physics, Luminosity (scattering theory), Annihilation, Physics and Astronomy (miscellaneous), Meson, Physics::Instrumentation and Detectors, Hadron, Elementary particle, law.invention, Nuclear physics, Particle decay, law, High Energy Physics::Experiment, Vector meson, Collider, Engineering (miscellaneous)
Abstract: The Cryogenic Magnetic Detector (CMD-2) and Spherical Neutral Detector (SND) operated at the VEPP-2M electron-positron collider in the c.m. energy range 360-1380 MeV. The total integrated luminosity above 60 pb–1 has been collected by both detectors. The cross sections of hadronic production have been measured with high precision. New results for the light vector meson parameters and rare decay mode were obtained. PACS: 13.66.Bc Hadron production in e – e + interactions – 13.66.Jn Precision measurements in e – e + interactions
Published: 2004

159. 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

160. Results from the e+e− colliders in Novosibirsk

Author: I.G. Snopkov, N.S. Bashtovoy, Yu.N. Pestov, Yu.V. Yudin, Yu. A. Rogovsky, A.E. Kuzmenko, B.A. Shwartz, N.M. Ryskulov, A.E. Ryzhenenkov, Yu.S. Popov, A.S. Popov, A.S. Zaytsev, A.E. Bondar, R.R. Akhmetshin, P.A. Lukin, A.V. Bragin, L.M. Barkov, A.I. Vorobiov, S.V. Karpov, D. Epifanov, Alexey Talyshev, D.N. Shemyakin, E.A. Perevedentsev, E. P. Solodov, K.Yu. Mikhailov, S.E. Gayazov, Fedor Ignatov, S.I. Eidelman, A.A. Ruban, S.I. Redin, E.N. Gromov, Yu. M. Shatunov, V.E. Shebalin, A.L. Sibidanov, Vassili Kazanin, D.E. Berkaev, V.M. Titov, S.A. Ahokhin, B.I. Khazin, V. S. Banzarov, S.G. Pivovarov, I.B. Logashenko, I. A. Koop, V.M. Aulchenko, A.N. Kozyrev, A.L. Romanov, S. Pirogov, P. Yu. Shatunov, G.V. Fedotovich, A.A. Grebenuk, A.S. Kuzmin, A.V. Anisonkov, A. P. Lysenko, D.N. Grigoriev, D.B. Shwartz, and L.B. Epshteyn
Subjects: Physics, Particle physics, Luminosity (scattering theory), Physics::Instrumentation and Detectors, Electron–positron annihilation, QC1-999, Detector, law.invention, Nuclear physics, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Collider
Abstract: Two e^+e^- colliders, VEPP-4M and VEPP2000, are taking data at the Budker INP in Novosibirsk, Russia. KEDR detector at the VEPP-4M collider continues deliver precision measurements of the charmonium family. Results of the psi(2S ) and psi(3770) study are presented. Two energy scans of a center-of-mass energy range from 1 GeV to 2 GeV has been performed by the VEPP2000 collider with an integrated luminosity of about 35 pb^-1, collected by each of the CMD-3 and SND detectors. This paper reports the latest results from VEPP-2000 obtained by the CMD-3 collaboration.
Published: 2012

161. 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

162. 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

163. 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

164. 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

165. 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

166. 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

167. 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

168. 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

169. 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

170. 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

171. 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

172. 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

173. 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

174. 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

175. 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

176. 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

177. 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

178. Evidence for the Suppressed DecayB−→DK−,D→K+π−

Author: S. H. Lee, Y. Sakai, Y. Teramoto, H. Farhat, K. Negishi, E. Solovieva, B. Golob, Leo Piilonen, Hiroaki Aihara, M. Bračko, Norihito Muramatsu, Toru Iijima, A. Zupanc, I. Adachi, S. E. Vahsen, Andrey Sokolov, I. Jaegle, I. S. Cho, O. Seon, Frank Simon, Kevin Varvell, D. M. Asner, A. M. Bakich, E. Nedelkovska, S. Ganguly, O. Nitoh, V. Zhilich, G. Bonvicini, D. H. Kah, G. Tatishvili, Y. Watanabe, T. Mori, D. Dutta, T. Sanuki, D. Cinabro, G. Schnell, A. J. Schwartz, A. Bala, M. Steder, James E. Fast, J. Li, K. Cho, M. Uchida, H. J. Kim, Y. Choi, Z. Doležal, J. Haba, J. Dalseno, V. Gaur, P. Lukin, M. Shapkin, G. Pakhlova, P. Chang, Semen Eidelman, D. Y. Kim, S. Uno, Pavel Krokovny, T. K. Pedlar, A. Moll, J. B. Kim, M. C. Chang, T. Kuhr, Phillip Urquijo, M. Ritter, T. A. Shibata, S. Esen, O. Schneider, V. Chobanova, S. Okuno, B.A. Shwartz, H. Sahoo, Y. S. Sohn, R. Gillard, M. Starič, V. Chekelian, D. Liventsev, T. Saito, T. Uglov, P. Vanhoefer, Marko Petrič, K. Trabelsi, H. J. Hyun, Vladimir Zhulanov, C. P. Shen, A.S. Kuzmin, J. G. Shiu, J. Libby, M. E. Sevior, Peter Kodys, B. G. Cheon, A.L. Sibidanov, P. Krishnan, Y. J. Kwon, S. Ogawa, Samo Korpar, H. Miyake, C. Van Hulse, G. Varner, Yasuyuki Horii, Y. Hoshi, M. Nayak, R. Mussa, S. Yashchenko, Tagir Aushev, Y. Onuki, M. N. Wagner, T. Julius, E. Won, M. J. Kim, A. Ishikawa, Y. Yamashita, Torben Ferber, M. Nakao, Yongsun Kim, C. W. Park, Yueh-Feng Liu, C. Schwanda, K. Belous, P. Križan, R. Chistov, T. Kumita, A. Bozek, T. Iwashita, T. E. Browder, Prafulla Kumar Behera, S. Sandilya, N. Gabyshev, D. Červenkov, G. B. Mohanty, R. Mizuk, Y. Yusa, W. S. Hou, E. Kato, Z. Drásal, A. Rostomyan, V. Bhardwaj, P. Pakhlov, Yang Li, B. R. Ko, H. Park, N. K. Nisar, L. Santelj, Y. M. Goh, H. Hayashii, J. Klucar, V. Savinov, C. H. Wang, M. Z. Wang, K. Kinoshita, U. Tamponi, Z. Suzuki, K. M. Williams, A. Chen, Y. Unno, Mikhail Danilov, M. Röhrken, L. Li Gioi, C. Ng, K. Senyo, and Yasushi Nagasaka
Subjects: Physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Analytical chemistry, General Physics and Astronomy, Resonance, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, Pi, CP violation, 010306 general physics, Bar (unit)
Abstract: The suppressed decay chain B- -> DK-, D -> K+pi(-), where D indicates a (D) over bar (0) or D-0 state, provides important information on the CP-violating angle phi(3). We measure the ratio R-DK of the decay rates to the favored mode B- -> DK-, D -> K+pi(-) to be R-DK = [1.63(-0.41)(+0.44)(stat)(-0.13)(+0.07)(syst)] x 10(-2), which indicates the first evidence of the signal with a significance of 4.1 sigma. We also measure the asymmetry A(DK) between the charge-conjugate decays to be A(DK) = -0.39(-0.28)(+0.26)(stat)(-0.03)(+0.04)(syst). The results are based on the full 772 x 10(6) B (B) over bar pair data sample collected at the Gamma(4S) resonance with the Belle detector.
Published: 2011

179. Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

Author: A. Denig, Fulvio Piccinini, C. M. Carloni Calame, Roberto Bonciani, Alexander A. Penin, T. Przedzinski, Tord Riemann, E. A. Kuraev, Janusz Gluza, M. Passera, S.I. Eidelman, P. Lukin, Malgorzata Worek, Stanislaw Jadach, G. Pancheri, Ettore Remiddi, A. Kalinowski, D. Nomura, G. Balossini, J. J. van der Bij, O. Shekhovtsova, A. Korchin, Michal Czakon, Johann H. Kuhn, P. Beltrame, Andrea Ferroglia, M. Gunia, Luca Trentadue, C. P. Shen, Pablo Roig, Pierpaolo Mastrolia, C. Bignamini, Fred Jegerlehner, Ping Wang, German Rodrigo, Fedor Ignatov, S. Actis, V. Cherepanov, Chang-Zheng Yuan, Oreste Nicrosini, Stefan E. Müller, Agnieszka Grzelińska, W. Kluge, Wieslaw Placzek, Henryk Czyz, A.L. Sibidanov, Bennie F.L. Ward, Guido Montagna, A. Hafner, G. Venanzoni, G. Pakhlova, F. Nguyen, Z. Was, Andrej Arbuzov, G. V. Fedotovich, Thomas Teubner, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), National Research Center 'Kurchatov Institute' (NRC KI), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), School of Science, Huzhou Tearchers College, Institute of High Energy Physics (IHEP), Chinese Academy of Sciences [Changchun Branch] (CAS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Particle physics, Physics and Astronomy (miscellaneous), Monte Carlo method, Hadron, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Cross section (physics), High Energy Physics - Phenomenology (hep-ph), Low energy, 0103 physical sciences, Radiative transfer, ddc:530, 010306 general physics, Engineering (miscellaneous), Particle Physics - Phenomenology, Physics, 010308 nuclear & particles physics, Física, Experimental data, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Physics::Accelerator Physics, High Energy Physics::Experiment, Energy (signal processing)
Abstract: We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low-energy e (+) e (-) colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on tau decays. We sketch the prospects in these fields for the years to come. We emphasise the status and the precision of the Monte Carlo generators used to analyse the hadronic cross section measurements obtained as well with energy scans as with radiative return, to determine luminosities and tau decays. The radiative corrections fully or approximately implemented in the various codes and the contribution of the vacuum polarisation are discussed., This work was supported in part by: – European Union Marie-Curie Research Training Networks MRTN-CT-2006-035482 “FLAVIAnet” andMRTN-CT-2006- 035505 “HEPTOOLS”; – European Union Research Programmes at LNF, FP7, Transnational Access to Research Infrastructure (TARI), Hadron Physics2-Integrating Activity, Contract No. 227431; – Generalitat Valenciana under Grant No. PROMETEO/2008/069; – German Federal Ministry of Education and Research (BMBF) grants 05HT4VKA/3, 06-KA-202 and 06-MZ-9171I; – German Research Foundation (DFG): ’Emmy Noether Programme’, contracts DE839/1-4, ’Heisenberg Programme’ and Sonderforschungsbereich/Transregio SFB/TRR 9; – Initiative and Networking Fund of the Helmholtz Association, contract HA-101 (”Physics at the Terascale”); – INTAS project Nr 05-1000008-8328 “Higher-order effects in e+e− annihilation and muon anomalous magnetic moment”; – Ministerio de Ciencia e Innovación under Grant No. FPA2007- 60323, and CPAN (Grant No. CSD2007-00042); – National Natural Science Foundation of China under Contracts Nos. 10775142, 10825524 and 10935008; – Polish Government grant N202 06434 (2008-2010); – PST.CLG.980342 – Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists; – RFBR grants 03-02-16477, 04-02-16217, 04-02-1623, 04-02- 16443, 04-02-16181-a, 04-02-16184-a, 05-02-16250-a, 06-02- 16192-a, 07-02-00816-a, 08-02-13516, 08-02-91969 and 09- 02-01143; – Theory-LHC-France initiative of CNRS/IN2P3; – US DOE contract DE-FG02-09ER41600. We thank J. Libby for useful correspondence about the luminosity measurement at CLEO-c, and A. Pich, J. Portolés, D. Gómez-Dumm, M. Jamin and Z.H. Guo for fruitful collaborations and useful suggestions related to the Tau Physics section. S. Eidelman and V. Cherepanov are grateful to the Cracow Institute of Nuclear Physics where part of this work has been performed. M. Gunia acknowledges a scholarship from the UPGOW project co-financed by the European Social Fund. F. Jegerlehner acknowledges support by the Foundation for Polish Science.
Published: 2010

180. Calibration and performances of the KLOE calorimeter

Author: Claudio Gatti, C. Bloise, Enrico Pasqualucci, G. F. Xu, P. Massarotti, Barbara Sciascia, M. Martini, M. Testa, Massimo Antonelli, Juliet Lee-Franzini, F. Bossi, S. Chi, S. Meola, P. Gauzzi, G. De Zorzi, S. Giovannella, G. Lanfranchi, Margherita Primavera, P. Valente, A. Ferrari, A. Passeri, R. Versaci, F. Ambrosino, T. Capussela, P. De Simone, D. Leone, Vincenzo Patera, G. Saracino, F. Crucianelli, A. Sciubba, P. Branchini, S. Bocchetta, W. Kluge, M. Dreucci, Edoardo Gorini, S. Miscetti, S. Fiore, Francesco Lacava, G. Capon, A. Antonelli, Paolo Santangelo, Pierluigi Campana, E. De Lucia, F. Murtas, F. Perfetto, Filippo Ceradini, Flavio Archilli, E. Graziani, F. Nguyen, A. Denig, G. Venanzoni, A. Di Domenico, M. Palutan, Paolo Ciambrone, M. L. Ferrer, P. Beltrame, L. Tortora, Stefan E. Müller, C. Bacci, Cesare Bini, V. V. Kulikov, P. Franzini, G. Felici, M. Moulson, Alessandra Doria, A. De Santis, W. Mei, C. Forti, M. Napolitano, G. Chiefari, C. Di Donato, S. Bertolucci, T. Spadaro, A.L. Sibidanov, B. Di Micco, G. Bencivenni, F., Ambrosino, A., Antonelli, M., Antonelli, F., Archilli, C., Bacci, P., Beltrame, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, S., Bocchetta, F., Bossi, P., Branchini, P., Campana, G., Capon, T., Capussela, F., Ceradini, S., Chi, G., Chiefari, P., Ciambrone, F., Crucianelli, E., DE LUCIA, A., DE SANTIS, P., DE SIMONE, G., DE ZORZI, A., Denig, A., DI DOMENICO, C., DI DONATO, B., DI MICCO, A., Doria, M., Dreucci, G., Felici, A., Ferrari, M. L., Ferrer, S., Fiore, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, E., Graziani, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., LEE FRANZINI, D., Leone, M., Martini, P., Massarotti, W., Mei, S., Meola, S., Miscetti, M., Moulson, S., MU LLER, F., Murta, M., Napolitano, F., Nguyen, M., Palutan, E., Pasqualucci, A., Passeri, V., Patera, F., Perfetto, Primavera, Margherita, P., Santangelo, G., Saracino, B., Sciascia, A., Sciubba, A., Sibidanov, T., Spadaro, M., Testa, L., Tortora, P., Valente, G., Venanzoni, R., Versaci, G., Xu, Ambrosino, F, Antonelli, A, Antonelli, M, Archilli, F, Bacci, C, Beltrame, P, Bencivenni, G, Bertolucci, S, Bini, C, Bloise, C, Bocchetta, S, Bossi, F, Branchini, P, Campana, P, Capon, G, Capussela, T, Ceradini, Filippo, Chi, S, Chiefari, G, Ciambrone, P, Crucianelli, F, De Lucia, E, De Santis, A, De Simone, P, De Zorzi, G, Denig, A, Di Domenico, A, Di Donato, C, DI MICCO, Biagio, Doria, A, Dreucci, M, Felici, G, Ferrari, A, Ferrer, Ml, Fiore, S, Forti, C, Franzini, P, Gatti, C, Gauzzi, P, Giovannella, S, Gorini, E, Graziani, E, Kluge, W, Kulikov, V, Lacava, F, Lanfranchi, G, Lee Franzini, J, Leone, D, Martini, M, Massarotti, P, Mei, W, Meola, S, Miscetti, S, Moulson, M, Muller, S, Murtas, F, Napolitano, M, Nguyen, F, Palutan, M, Pasqualucci, E, Passeri, A, Patera, V, Perfetto, F, Primavera, M, Santangelo, P, Saracino, G, Sciascia, B, Sciubba, A, Sibidanov, A, Spadaro, T, Testa, M, Tortora, L, Valente, P, Venanzoni, G, Versaci, R, Xu, G., Ambrosino, Fabio, Chiefari, Giovanni, C., Di Donato, Massarotti, Paolo, Napolitano, Marco, and Saracino, Giulio
Subjects: Physics, Nuclear and High Energy Physics, Photon, Calorimeter (particle physics), Physics::Instrumentation and Detectors, Detector, calorimeter, high energy physics, scintillating fibres, timing, Sampling fraction, Charged particle, Particle identification, Nuclear physics, Calibration, High Energy Physics::Experiment, Granularity, Instrumentation
Abstract: The KLOE experiment uses a fine sampling lead-scintillating fibre calorimeter to measure energy, time and position of neutral and charged particles. The overall detector consists of 88 modules organised in a barrel and two end-caps, for a total granularity of 2440 cells, read-out by photo-multipliers at both fibre ends. The chosen design of a high sampling fraction with the usage of thin lead layers and fast scintillating fibres allows to reach good efficiency for photon energies down to few MeV, good energy resolution and excellent time resolution. The design, calibration and performances of the calorimeter on efficiency, time/position/energy resolution and particle identification is reviewed. The overall calorimeter impact on kaon tagging and on physics results is also presented. (c) 2008 Elsevier B.V. All rights reserved.
Published: 2009

181. KLOE RESULTS ON SCALAR MESONS FROM ϕ → ππγ DECAYS

Author: G. Capon, Paolo Santangelo, A. G. Denig, S. Müller, M. Moulson, A. De Santis, F. Murtas, Simona Serena Bocchetta, A. Ventura, G. Chiefari, D. Leone, P. Beltrame, C. Bacci, B. Di Micco, W. Kluge, S. Di Falco, G. Saracino, F. Perfetto, C. Forti, Ludovico Pontecorvo, A. Di Domenico, V. Bocci, G. De Zorzi, G. Finocchiaro, T. Capussela, G. Xu, B. Valeriani, Francesco Lacava, M. Napolitano, G. Venanzoni, F. Nguyen, A. Passeri, A.L. Sibidanov, M. L. Ferrer, Andrea Doria, P. De Simone, Filippo Ceradini, M. Palutan, P. Franzini, A. Antonelli, Margherita Primavera, E. Santovetti, S. Chi, V. V. Kulikov, Paolo Ciambrone, G. Felici, F. Ambrosino, S. Conetti, Juliet Lee-Franzini, Enrico Pasqualucci, Edoardo Gorini, R. Caloi, G. Lanfranchi, E. De Lucia, S. Giovannella, S. Meola, S. Miscetti, S. Dell'Agnello, Vincenzo Patera, Marianna Testa, L. Tortora, S. Bertolucci, Cesare Bini, A. Sciubba, M. Incagli, Fabrizio Scuri, T. Spadaro, P. Branchini, M. Dreucci, P. Valente, A. Ferrari, D. Bowring, F. Bossi, C. Di Donato, Stefano Veneziano, G. Bencivenni, P. Gauzzi, R. Versaci, Igor Sfiligoi, P. Massarotti, Barbara Sciascia, M. Martini, Claudio Gatti, C. Bloise, W. Mei, P. Campana, S. Fiore, E. Graziani, and Massimo Antonelli
Subjects: Physics, Particle physics, Meson, Scalar (mathematics)
Published: 2007

182. KLOE results on neutral kaon decays

Author: G. Felici, W. Mei, Marianna Testa, S. Chi, P. Massarotti, Barbara Sciascia, C. Di Donato, M. Martini, Enrico Pasqualucci, P. Campana, S. Bertolucci, C. Bacci, F. Perfetto, Francesco Lacava, Ludovico Pontecorvo, G. Lanfranchi, G. Xu, Margherita Primavera, B. Valeriani, T. Capussela, A. Di Domenico, F. Bossi, E. De Lucia, J. Lee Franzini, T. Spadaro, G. Finocchiaro, G. Venanzoni, Claudio Gatti, C. Bloise, D. Leone, A. G. Denig, M. Moulson, M. L. Ferrer, P. De Simone, Paolo Santangelo, A.L. Sibidanov, A. Antonelli, Andrea Venturi, Edoardo Gorini, P. Valente, F. Murtas, G. Chiefari, P. Beltrame, A. Passeri, P. Franzini, S. Miscetti, G. Capon, S. Meola, A. Ferrari, L. Tortora, Filippo Ceradini, G. Saracino, M. Antonelli, F. Nguyen, D. Bowring, M. Palutan, Cesare Bini, Stefano Veneziano, R. Caloi, S. Dell'Agnello, Paolo Ciambrone, V. Bocci, V. V. Kulikov, B. Di Micco, G. De Zorzi, W. Kluge, S. Di Falco, F. Ambrosino, C. Forti, P. Branchini, M. Dreucci, G. Bencivenni, M. Napolitano, Matthew Moulson, Vincenzo Patera, Andrea Doria, A. Sciubba, P. Gauzzi, S. Müller, R. Versaci, Igor Sfiligoi, E. Graziani, E. Santovetti, S. Conetti, M. Incagli, Fabrizio Scuri, and S. Giovannella
Published: 2007

183. High-statistics measurement of the pion form factor in the rho-meson energy range with the CMD-2 detector

Author: A.I. Milshtein, J. A. Thompson, Yu. M. Shatunov, Pavel Krokovny, E. P. Solodov, V.Sh. Banzarov, E.A. Perevedentsev, A.V. Bragin, A.S. Zaitsev, A.N. Skrinsky, V. W. Hughes, J. P. Miller, A. A. Grebenuk, L.M. Barkov, B. L. Roberts, A.G. Shamov, I.G. Snopkov, V.M. Aulchenko, Vassili Kazanin, P.A. Lukin, V.A. Sidorov, R.R. Akhmetshin, M.A. Nikulin, I. A. Koop, Yu.V. Yudin, D. Epifanov, A.E. Bondar, A.S. Kuzmin, S.V. Karpov, K.Yu. Mikhailov, D. V. Bondarev, Igor Nesterenko, A.V. Otboev, Fedor Ignatov, N.S. Bashtovoy, Vladimir Smakhtin, V.S. Okhapkin, I. Logashenko, A.S. Popov, B.I. Khazin, A.L. Sibidanov, G.V. Fedotovich, N. Gabyshev, D.N. Grigoriev, A. P. Lysenko, N.I. Root, Semen Eidelman, B. Shwartz, A.A. Ruban, S.I. Redin, Satish Dhawan, D.A. Gorbachev, N.M. Ryskulov, and S.G. Zverev
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Annihilation, Meson, Electron–positron annihilation, Detector, Form factor (quantum field theory), FOS: Physical sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pion, High Energy Physics::Experiment, Nuclear Experiment, Energy (signal processing), Astrophysics::Galaxy Astrophysics
Abstract: We present a measurement of the pion form factor based on e+e- annihilation data from the CMD-2 detector in the energy range 0.6, Comment: 18 pages, 10 figures. Added comparison with KLOE measurement, minor updates. Accepted by PLB
Published: 2006
Full Text: View/download PDF

184. Monte-Carlo generator for e+e- annihilation into lepton and hadron pairs with precise radiative corrections

Author: E. A. Kuraev, Fedor Ignatov, A.L. Sibidanov, Andrej Arbuzov, and G.V. Fedotovich
Subjects: Physics, Particle physics, Muon, Annihilation, Physics and Astronomy (miscellaneous), Hadron, Monte Carlo method, FOS: Physical sciences, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Pion, Radiative transfer, High Energy Physics::Experiment, Engineering (miscellaneous), Lepton, Bhabha scattering
Abstract: Recently, various cross sections of e+e- annihilation into hadrons were accurately measured in the energy range from 0.37 to 1.39 GeV with the CMD-2 detector at the VEPP-2M collider. In the pi+pi- channel a systematic uncertainty of 0.6% has been achieved. A Monte-Carlo Generator Photon Jets (MCGPJ) was developed to simulate events of the Bhabha scattering as well as production of two charged pions, kaons and muons. Based on the formalism of Structure Functions, the leading logarithmic contributions related to the emission of photon jets in the collinear region are incorporated into the MC generator. Radiative corrections (RC) in the first order of alpha are accounted for exactly. The theoretical precision of the cross sections with RC is estimated to be better than 0.2%. Numerous tests of the program as well as comparison with other MC generators and CMD-2 experimental data are presented., LaTeX, 23 pages with 18 figures
Published: 2005

185. Data handling, reconstruction, and simulation for the KLOE experiment

Author: T. Capussela, A. Ventura, A. Antonelli, L. Passalacqua, G.F. Fortugno, F. Ambrosino, M. Testa, Margherita Primavera, F. Perfetto, D. Leone, B. Valeriani, G. Lanfranchi, A. Denig, G. Venanzoni, M. L. Ferrer, M. Moulson, G. Finocchiaro, W. Mei, Stefan E. Müller, C. Forti, Edoardo Gorini, Cesare Bini, A. Ferrari, T. Spadaro, G. Capon, B. Di Micco, S. Ventura, E. De Lucia, A. Passeri, S. Dell'Agnello, C. Bloise, C. Di Donato, Alessandra Doria, A.L. Sibidanov, R. Versaci, Igor Sfiligoi, M. Martemianov, Barbara Sciascia, M. Martini, Paolo Valente, Addolorata Farilla, S. Miscetti, Massimo Antonelli, P. Branchini, M. Dreucci, C. Gatti, G. Saracino, M. Incagli, Fabrizio Scuri, F. Nguyen, M. Palutan, P. De Simone, Juliet Lee-Franzini, G. Xu, S. Giovannella, S. Di Falco, E. Santovetti, I. Villella, A. Di Domenico, Paolo Santangelo, Enrico Pasqualucci, Vincenzo Patera, P. Gauzzi, DI MICCO, Biagio, F., Ambrosino, A., Antonelli, M., Antonelli, C., Bini, C., Bloise, P., Branchini, G., Capon, T., Capussela, E., De Lucia, P., De Simone, S., Dell Agnello, A., Denig, A., Di Domenico, C., Di Donato, S., Di Falco, B., DI Micco, A., Doria, M., Dreucci, A., Farilla, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, G. F., Fortugno, C., Gatti, P., Gauzzi, S., Giovannella, Gorini, Edoardo, M., Incagli, G., Lanfranchi, Juliet Lee, Franzini, D., Leone, M., Martemianov, M., Martini, W., Mei, S., Miscetti, M., Moulson, S., Muller, F., Nguyen, M., Palutan, E., Pasqualucci, L., Passalacqua, A., Passeri, V., Patera, F., Perfetto, Primavera, Margherita, P., Santangelo, E., Santovetti, G., Saracino, B., Sciascia, F., Scuri, I., Sfiligoi, A., Sibidanov, T., Spadaro, M., Testa, P., Valente, B., Valeriani, G., Venanzoni, Ventura, Andrea, S., Ventura, R., Versaci, I., Villella, G., Xu, Ambrosino, Fabio, Napolitano, Marco, and Saracino, Giulio
Subjects: Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Luminescence, Group method of data handling, Data management, Real-time computing, Monte Carlo method, FOS: Physical sciences, Particle detectors, High Energy Physics - Experiment, Settore FIS/04 - Fisica Nucleare e Subnucleare, High Energy Physics - Experiment (hep-ex), Data acquisition, Instrumentation, event reconstruction, Event reconstruction, Physics, Data reconstruction, Calorimeter (particle physics), monte carlo, business.industry, Event (computing), Monte Carlo methods, Instrumentation and Detectors (physics.ins-det), Computer simulation, Data handling, Data transfer, KLOE, Offline computing, Particle beam tracking, Physics::Accelerator Physics, High Energy Physics::Experiment, Reconstruction, business, DAFNE, data handling, offline computing, Simulation
Abstract: The broad physics program of the KLOE experiment is based on the high event rate at the Frascati phi factory, and calls for an up-to-date system for data acquisition and processing. In this review of the KLOE offline environment, the architecture of the data-processing system and the programs developed for data reconstruction and Monte Carlo simulation are described, as well as the various procedures used for data handling and transfer between the different components of the system., Comment: 49 pages, 17 figures, submitted to Nucl. Instrum. Meth. A
Published: 2004

186. STUDY OF E+E- ANNIHILATION INTO HADRONS AT VEPP-2M

Author: S. Eidelman, L.M. Kurdadze, D.A. Gorbachev, I.B. Logashenko, N.M. Ryskulov, A.E. Bondar, D.N. Grigoriev, Yu. M. Shatunov, L. M. Barkov, A.A. Ruban, Igor Nesterenko, S.G. Zverev, R.R. Akhmetshin, D.V. Chernyak, Ivan Koop, A.N. Skrinsky, Yu. Y. Yudin, A.S. Kuzmin, A.I. Sukhanov, V. F. Kazanine, I. G. Snopkov, A.S. Popov, P.Yu. Stepanov, G.V. Fedotovich, K.Yu. Mikhailov, B. Shwartz, F.V. Ignatov, E.V. Anashkin, Vladimir A. Sidorov, N.S. Bashtovoy, E. P. Solodov, A. A. Grebenuk, V.Sh. Banzarov, J. A. Thompson, A. I. Milstein, B. I. Khazin, D.V. Bondarev, Vladimir Smakhtin, P.A. Lukin, T.A. Purlatz, N. Gabyshev, A.V. Bragin, V.S. Okhapkin, A.L. Sibidanov, P. Krokovny, Sergei V. Karpov, V. W. Hughes, N.I. Root, Satish Dhawan, J. P. Miller, B. L. Roberts, and A. P. Lysenko
Subjects: Physics, Particle physics, Annihilation, Hadron
Published: 2002

187. Precise measurement hadronic cross sections with CMD-2 detector at VEPP-2M

Author: S. Eidelman, L.M. Kurdadze, P.Yu. Stepanov, Alexander Valishev, Sergei V. Karpov, Yu. M. Shatunov, D.N. Grigoriev, V. M. Aulchenko, V. W. Hughes, A.S. Kuzmin, Igor Nesterenko, A.I. Sukhanov, A.A. Polunin, N.S. Bashtovoy, Ivan Koop, N.I. Root, E. P. Solodov, A.A. Grebeniuk, B. Shwartz, A.G. Shamov, A.S. Popov, R.R. Akhmetshin, A.N. Skrinsky, A.A. Ruban, K.Yu. Mikhailov, I. G. Snopkov, A. V. Otboev, A.L. Sibidanov, Vassili Kazanin, P. Krokovny, M. S. Korostelev, N.M. Ryskulov, A. P. Lysenko, A.E. Bondar, S.E. Baru, G.V. Fedotovitch, P.M. Ivanov, J. A. Thompson, A.V. Bragin, A.I. Shekhtman, V.S. Okhapkin, D.V. Chernyak, I.B. Logashenko, Evgeny Perevedentsev, S.G. Zverev, Yu.V. Yudin, V.Sh. Banzarov, P.A. Lukin, V.M. Titov, T.A. Purlatz, N. Gabyshev, B. I. Khazin, D.V. Bondarev, Vladimir Smakhtin, E.V. Anashkin, Vladimir A. Sidorov, and L. M. Barkov
Subjects: Physics, Nuclear physics, Particle decay, Particle physics, Rho meson, Luminosity (scattering theory), Pion, Annihilation, Meson, High Energy Physics::Experiment, Nuclear Experiment, Quarkonium, Particle identification
Abstract: The Cryogenic Magnetic Detector (CMD‐2) and main it’s parameters are shortly described. The results for the cross sections of e+e− annihilation into hadrons are presented in the c.m. energy range from 0.37 to 1.39 GeV. The total integrated luminosity of about 31 pb−1 has been collected. The new results for the ρ and ω meson parameters were obtained. The pion form factor was determinated with a 0.6% systematic uncertainty. The major decay modes of the φ meson as well as multihadron final states have been studied in a broad energy range.
Published: 2002

188. Current status of luminosity measurement with the CMD-3 detector at the VEPP-2000 e+e− collider

Author: A.S. Kuzmin, Yu.S. Popov, Yu. A. Rogovsky, D. Epifanov, D.E. Berkaev, K.Yu. Mikhailov, E. P. Solodov, Alexey Anisenkov, V.S. Banzarov, E.A. Perevedentsev, A.V. Bragin, V.M. Aulchenko, Semen Eidelman, A.L. Erofeev, Yu.N. Pestov, A.N. Kozyrev, A.E. Kuzmenko, A.A. Grebenuk, Alexey Talyshev, Yu. M. Shatunov, Vassili Kazanin, I.B. Logashenko, R.R. Akhmetshin, E.A. Kozyrev, D. B. Shwartz, B.A. Shwartz, N.S. Bashtovoy, P. Krokovny, A. P. Lysenko, V.S. Okhapkin, A.E. Ryzhenenkov, Yu.V. Yudin, P.A. Lukin, L.B. Epshteyn, N.M. Ryskulov, V. L. Ivanov, G.P. Razuvaev, O.A. Kovalenko, Fedor Ignatov, A.L. Romanov, S.V. Karpov, D.N. Grigoriev, E. M. Gromov, A. N. Kirpotin, P. Yu. Shatunov, A.S. Popov, D.N. Shemyakin, G.V. Fedotovich, V.M. Titov, Yu. M. Zharinov, I. A. Koop, S.E. Gayazov, A.A. Ruban, V.E. Shebalin, A.I. Vorobiov, A.L. Sibidanov, and B.I. Khazin
Subjects: Physics, Measurement method, Particle physics, Luminosity (scattering theory), Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Cosmology and Extragalactic Astrophysics, law.invention, Nuclear physics, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Current (fluid), Collider, Instrumentation, VEPP-2000, Astrophysics::Galaxy Astrophysics, Mathematical Physics, Energy (signal processing)
Abstract: Since December 2010 the CMD-3 detector has taken data at the electron-positron collider VEPP-2000. The collected data sample corresponds to an integrated luminosity of 60 pb−1 in the c.m. energy from 0.32 up to 2 GeV. The preliminary results of the luminosity measurement are presented in various energy ranges. The current accuracy for integrated luminosity is estimated to be 1%.
Published: 2014

189. Precise measurements of the hadronic cross sections with the CMD-3 and SND detectors at the VEPP-2000e+e−collider

Author: L.V. Kardapoltsev, Z. K. Silagadze, Konstantin Beloborodov, Alexey Anisenkov, E.A. Perevedentsev, I.M. Zemlyansky, V.M. Titov, Yu. M. Shatunov, V. P. Druzhinin, Yu. A. Rogovsky, A. E. Obrazovsky, I.B. Logashenko, Yu. M. Zharinov, B.A. Shwartz, A.E. Ryzhenenkov, Alexey Kharlamov, Aleksandr Korol, E. M. Gromov, A.V. Vasiljev, P. Lukin, A. P. Lysenko, Yu.N. Pestov, A.A. Grebenuk, Yu.S. Popov, Alexey Talyshev, E. P. Solodov, S.E. Gayazov, K.Yu. Mikhailov, P. Yu. Shatunov, A.E. Kuzmenko, A.I. Vorobiov, K. A. Grevtsov, Yu.V. Yudin, A.A. Ruban, V. B. Golubev, N.M. Ryskulov, L.M. Barkov, E.A. Kozyrev, A. A. Botov, Vassili Kazanin, D. B. Shwartz, D.A. Shtol, A.S. Kuzmin, G.V. Fedotovich, I. K. Surin, D. A. Epifanov, Sergey Serednyakov, I. A. Koop, S.V. Koshuba, Fedor Ignatov, A.L. Sibidanov, Semen Eidelman, A. Yu. Barnyakov, B.I. Khazin, E.V. Pakhtusova, M. N. Achasov, P. Krokovny, A. N. Kirpotin, A.V. Dimova, A.V. Otboev, D.N. Shemyakin, G.P. Razuvaev, V.M. Aulchenko, O.A. Kovalenko, V.S. Okhapkin, A.N. Kozyrev, V.E. Shebalin, A.L. Romanov, D.N. Grigoriev, A.S. Popov, Alexander Bogdanchikov, K. A. Martin, A. S. Kupich, L.B. Epshteyn, A.L. Erofeev, D.E. Berkaev, V.S. Banzarov, R.R. Akhmetshin, A. V. Berdyugin, N.S. Bashtovoy, A.V. Bragin, D.P. Kovrizhin, A.E. Bondar, and S.V. Karpov
Subjects: Physics, Particle physics, Luminosity (scattering theory), Muon, Physics::Instrumentation and Detectors, QC1-999, Electron–positron annihilation, Hadron, Standard Model, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Collider, VEPP-2000, Fermi Gamma-ray Space Telescope
Abstract: It’s good known the difference in 3.5 sigma between the muon (g – 2) experimental result and its calculation in Standard Model. To clarify this intriguing discrepancy the new stage of muon (g – 2) measurement is under preparation at Fermi National Laboratory. On other hand, regular data taking for measurements of hadron cross section production in e + e − annihilations is under way since December 2010 at the electron-positron collider VEPP-2000 with the CMD-3 and SND detectors. The collected data sample corresponds to about 60 inverse picobarns of integrated luminosity per detector in the energy range from 0.32 up to 2 GeV. Preliminary analysis of various hadronic cross sections has been performed.
Published: 2014

190. RESULTS AND PERSPECTIVES ON NUCLEON FORM FACTORS FROM SND AND CMD-3

Author: Yu. M. Shatunov, P.A. Lukin, E.A. Perevedentsev, Alexander Bogdanchikov, A. A. Botov, A.S. Kuzmin, P. Yu. Shatunov, K. A. Grevtsov, V.M. Aulchenko, D.N. Grigoriev, A.N. Kozyrev, L. V. Kardapoltsev, A.L. Romanov, A.S. Popov, Ilya Zemlyansky, D.E. Berkaev, A.L. Sibidanov, S. I. Serednyakov, O.A. Kovalenko, I. K. Surin, S.V. Karpov, G.V. Fedotovich, I. A. Koop, M. N. Achasov, S.V. Koshuba, B.I. Khazin, Alexey Kharlamov, Yu.V. Yudin, K.Yu. Mikhailov, K. A. Martin, V. P. Druzhinin, A. S. Kupich, S.E. Gayazov, A.V. Bragin, A. P. Lysenko, A.L. Erofeev, I.B. Logashenko, S.I. Eidelman, A.A. Grebenuk, Aleksandr Korol, V. S. Banzarov, A.A. Ruban, G.P. Razuvaev, Fedor Ignatov, A. N. Kirpotin, A.E. Kuzmenko, D.N. Shemyakin, V.M. Titov, Yu. M. Zharinov, E. M. Gromov, Z. K. Silagadze, Yu. A. Rogovsky, V.E. Shebalin, A.I. Vorobiov, A. E. Obrazovsky, D.P. Kovrizhin, L.B. Epshteyn, Yu.N. Pestov, B.A. Shwartz, Alexey Talyshev, A.E. Ryzhenenkov, N.M. Ryskulov, E.A. Kozyrev, D. A. Epifanov, T. V. Dimova, V. B. Golubev, A. Yu. Barnyakov, A. V. Vasiljev, P. Krokovny, E. P. Solodov, Vassili Kazanin, E. V. Pakhtusova, Yu.S. Popov, L.M. Barkov, D. A. Shtol, V.S. Okhapkin, A.E. Bondar, Konstantin Beloborodov, Alexey Anisenkov, R.R. Akhmetshin, A. V. Berdyugin, and N.S. Bashtovoy
Subjects: Nuclear physics, Physics, Particle physics, Near threshold, law, Form factor (quantum field theory), Nucleon, Collider, Measure (mathematics), law.invention
Abstract: During years 2011 and 2012 data taking runs have been carried out at VEPP-2000 e+e- collider to measure the production of the nucleon-antinucleon pairs [Formula: see text] near threshold. In this talk the preliminary results on the nucleon timelike electromagnetic form factors (FF) and the |GE/GM| ratio are presented.
Published: 2014

191. MEASUREMENT OF THE $e^+e^- \to p \bar{p}$ CROSS SECTION WITH THE CMD-3 DETECTOR AT VEPP-2000

Author: E.A. Perevedentsev, D.N. Grigoriev, B.A. Shwartz, V.S. Okhapkin, Yu. M. Shatunov, A.E. Ryzhenenkov, D. B. Shwartz, E. P. Solodov, P.A. Lukin, A. P. Lysenko, S.I. Eidelman, V.E. Shebalin, Yu.V. Yudin, A.I. Vorobiov, Alexey Anisenkov, A.A. Grebenuk, Vassili Kazanin, A.S. Popov, A.L. Sibidanov, K.Yu. Mikhailov, B.I. Khazin, A.S. Kuzmin, Yu.S. Popov, D.E. Berkaev, Yu. A. Rogovsky, I.B. Logashenko, V.M. Aulchenko, L.M. Barkov, Yu.N. Pestov, A.N. Kozyrev, A.L. Romanov, S.E. Gayazov, V.M. Titov, A.L. Erofeev, I. A. Koop, A.E. Kuzmenko, Yu. M. Zharinov, A. N. Kirpotin, N.M. Ryskulov, A.A. Ruban, A.V. Bragin, D.N. Shemyakin, L.B. Epshteyn, Fedor Ignatov, V. S. Banzarov, P. Yu. Shatunov, G.V. Fedotovich, R.R. Akhmetshin, N.S. Bashtovoy, G.P. Razuvaev, Alexey Talyshev, O.A. Kovalenko, S.V. Karpov, E.A. Kozyrev, E. M. Gromov, D. A. Epifanov, and P. Krokovny
Subjects: Physics, Particle physics, Luminosity (scattering theory), Physics::Instrumentation and Detectors, Bar (music), Detector, law.invention, Nuclear physics, Event selection, Cross section (physics), law, High Energy Physics::Experiment, Collider, VEPP-2000, Energy (signal processing)
Abstract: We report preliminary results on the measurement of the [Formula: see text] cross section with the CMD-3 detector at the VEPP-2000 electron-positron collider based on 4.5 pb-1 of integrated luminosity collected in the c.m. energy range 1.92 - 2.0 GeV. Event selection using information from the Drift Chamber and Calorimeters provides a clean sample of [Formula: see text] events. The obtained results are in good agreement with the previous measurements.
Published: 2014

192. HADRONIC CROSS SECTION MEASUREMENT AT CMD-3

Author: O.A. Kovalenko, S.V. Karpov, P.A. Lukin, V.E. Shebalin, A.I. Vorobiov, D.N. Grigoriev, Yu.S. Popov, E. M. Gromov, A.L. Erofeev, L.M. Barkov, E. P. Solodov, Yu. M. Shatunov, Yu.V. Yudin, A.L. Sibidanov, A.V. Bragin, B.I. Khazin, A.A. Grebenuk, D.E. Berkaev, S.E. Gayazov, Fedor Ignatov, A. P. Lysenko, A.S. Kuzmin, Vassili Kazanin, L.B. Epshteyn, A.A. Ruban, A. N. Kirpotin, D.N. Shemyakin, A.S. Popov, E.A. Perevedentsev, Yu. A. Rogovsky, V.M. Titov, D. B. Shwartz, R.R. Akhmetshin, Yu. M. Zharinov, P. Yu. Shatunov, K.Yu. Mikhailov, N.S. Bashtovoy, S.I. Eidelman, G.V. Fedotovich, V.S. Okhapkin, V.M. Aulchenko, A.N. Kozyrev, A.L. Romanov, I. A. Koop, P. Krokovny, Alexey Talyshev, V. S. Banzarov, N.M. Ryskulov, E.A. Kozyrev, Alexey Anisenkov, B.A. Shwartz, A.E. Ryzhenenkov, D. A. Epifanov, I.B. Logashenko, G.P. Razuvaev, Yu.N. Pestov, and A.E. Kuzmenko
Subjects: Nuclear physics, Physics, Cross section (physics), Particle physics, Range (particle radiation), law, Hadron, Detector, Collider, law.invention
Abstract: The VEPP-2000 electron-positron collider was commissioned in 2010. About 60 pb-1 were collected so far by CMD-3 detector in the whole available c.m. energy range from 0.32 GeV to 2.0 GeV. The preliminary results of data analysis for various modes of e+e− → hadrons are discussed.
Published: 2014

193. STUDY OF THE PROCESS e+e- → K+K-π+π- WITH THE CMD-3 DETECTOR AT THE VEPP-2000 e+e- COLLIDER

Author: Yu.S. Popov, N.S. Bashtovoy, Alexey Anisenkov, L.M. Barkov, P. Yu. Shatunov, E. P. Solodov, G.V. Fedotovich, D.E. Berkaev, R.R. Akhmetshin, A.A. Grebenuk, Vassili Kazanin, N.M. Ryskulov, E.A. Perevedentsev, V.M. Titov, A.L. Erofeev, Yu. M. Zharinov, V. S. Banzarov, P.A. Lukin, S.E. Gayazov, A.V. Bragin, O.A. Kovalenko, S.V. Karpov, A.A. Ruban, V.S. Okhapkin, A.S. Kuzmin, Fedor Ignatov, A.S. Popov, L.B. Epshteyn, E. M. Gromov, V.E. Shebalin, A.I. Vorobiov, A.L. Sibidanov, K.Yu. Mikhailov, I.B. Logashenko, B.I. Khazin, S.I. Eidelman, Yu. M. Shatunov, A. P. Lysenko, I. A. Koop, P. Krokovny, Yu.V. Yudin, Yu. A. Rogovsky, A. N. Kirpotin, D.N. Grigoriev, D.N. Shemyakin, V.M. Aulchenko, Yu.N. Pestov, A.N. Kozyrev, A.L. Romanov, A.E. Kuzmenko, D. B. Shwartz, B.A. Shwartz, A.E. Ryzhenenkov, Alexey Talyshev, E.A. Kozyrev, D. A. Epifanov, and G.P. Razuvaev
Subjects: Nuclear physics, Physics, Particle physics, Range (particle radiation), law, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, Hadron, Detector, Collider, VEPP-2000, law.invention, Luminosity
Abstract: We report preliminary results on the measurement of the cross section of the process e+e- → K+K-π+π- in the c.m. energy range from 1.5 GeV to 2 GeV. It is shown that the cross section is dominated by the contributions of several intermediate states K+K-ρ, K*Kπ, ϕπ+π- and K*K*.
Published: 2014

194. Measurement of hadronic cross-sections in $e^+e^-$ collisions below 1.4 GeV at CMD

Author: S. Eidelman, N.M. Ryskulov, A.A. Ruban, S.I. Redin, P.Yu. Stepanov, P. Krokovny, V. M. Aulchenko, D.V. Chernyak, A.E. Bondar, E. P. Solodov, V.M. Titov, A.I. Sukhanov, A.G. Shamov, Yu. Y. Yudin, A.S. Kuzmin, P.A. Lukin, I.B. Logashenko, D.A. Gorbachev, Igor Nesterenko, T.A. Purlatz, F.V. Ignatov, A.N. Skrinsky, B. Shwartz, A.S. Popov, S.G. Zverev, L. M. Barkov, A.A. Grebenyuk, K.Yu. Mikhailov, I. G. Snopkov, Yu. M. Shatunov, V. S. Banzarov, Ivan Koop, A.V. Bragin, N. Gabyshev, A.I. Milshtein, A.A. Polunin, J. A. Thompson, A. P. Lysenko, R.R. Akhmetshin, N.S. Bashtovoy, B. I. Khazin, D.V. Bondarev, Vladimir Smakhtin, S.E. Baru, V.S. Okhapkin, Vassili Kazanin, Satish Dhawan, Sergei V. Karpov, V. W. Hughes, N.I. Root, E.V. Anashkin, Vladimir A. Sidorov, A.L. Sibidanov, G.V. Fedotovich, D. N. Grigorev, J. P. Miller, and B. L. Roberts
Subjects: Physics, Nuclear physics, Particle physics, Electron–positron annihilation, Hadron
Published: 2001

195. High-statistics study of KFormula pair production in two-photon collisions

Author: M. Steder, Hikaru Kawai, H. O. Kim, Dipanwita Dutta, S. Okuno, H. Farhat, A. Zupanc, J. B. Kim, A. M. Bakich, Y. Teramoto, T. Aushev, O. Nitoh, Z. P. Zhang, D. Epifanov, Y. S. Sohn, N. Gabyshev, H. Nakazawa, M. Uchida, V. Chobanova, V. Bhardwaj, T. K. Pedlar, A. Moll, D. Liventsev, C. Liu, Marko Petrič, G. Schnell, T. Iijima, G. S. Varner, T. Saito, A. Frey, H. J. Hyun, D. Cinabro, K. Tanida, V. Gaur, R. Itoh, Peter Kodys, P. Wang, M. N. Wagner, M. Nakao, V.N. Zhilich, Y. Sakai, Jung-Hyun Kim, Z. Q. Liu, Byeong Rok Ko, D. Matvienko, C. Z. Yuan, D. Y. Kim, H. Hayashii, Y. Watanabe, C. Kiesling, G. Bonvicini, C. C. Zhang, K. Senyo, C. Ng, T. Kawasaki, S. Sandilya, J. C. Dingfelder, K. Miyabayashi, E. Solovieva, T.-A. Shibata, G. Tatishvili, P. Krokovny, T. Mori, H. Aihara, U. Tamponi, M. Bračko, M. Starič, Yasushi Nagasaka, Meng Wang, R. Gillard, K. Cho, T. Kumita, T. Sumiyoshi, Jeremy Dalseno, Andrey Sokolov, S. K. Choi, C. P. Shen, Martin Ritter, R. Mizuk, J. H. Kang, S. E. Vahsen, O. Seon, Frank Simon, T. Sanuki, V. V. Zhulanov, Torben Ferber, C. H. Wang, R. Seidl, Y. Iwasaki, Y. J. Kwon, H. K. Park, Y. Yamashita, James E. Fast, Yongsun Kim, J. Li, O. Schneider, S. Uno, C. Schwanda, Y. Yook, C. B. Van Hulse, A.E. Bondar, R. Mussa, Y. Choi, L. E. Piilonen, A. Ishikawa, B. Shwartz, A.L. Sibidanov, L. Santelj, G. Pakhlova, P. Križan, S. Yashchenko, B. Golob, T. Julius, Y. M. Goh, N. K. Nisar, K. M. Williams, Po-Hsun Chen, R. Chistov, A. Chen, Z. Doležal, M. Shapkin, M. Röhrken, K. Chilikin, V. M. Aulchenko, Y. Yusa, C. W. Park, E. Won, S. H. Lee, R. Pestotnik, E. Kato, M. Sumihama, Sanmay Ganguly, I. Adachi, Norihito Muramatsu, W. S. Hou, Y. Unno, S. Uehara, D. M. Asner, H. Sahoo, T. Uglov, A. Kuzmin, S. Ogawa, Ferdinando Giordano, H. Miyata, Y. Hoshi, K. Hayasaka, B. Bhuyan, J. Klucar, V. Savinov, M. Feindt, D. H. Kah, S. Nishida, A. Rostomyan, X. L. Wang, V. Chekelian, S. Eidelman, H. Park, A. Bozek, J. G. Shiu, Phillip Urquijo, Y. B. Li, B. G. Cheon, J. Haba, S. Korpar, A. Bala, and P.A. Lukin
Subjects: Physics, Scattering cross-section, Cross section (physics), Particle physics, Pair production, 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, 010306 general physics, 01 natural sciences, Gamma gamma
Abstract: We report a high-statistics measurement of the differential cross section of the process gamma gamma --> K^0_S K^0_S in the range 1.05 GeV K^0_S K^0_S is reported. The detailed behavior of the cross section is updated and compared with QCD-based calculations.
Published: 2013

196. Observation of the conversion decay $\phi\to\pi^0e^+e^-$ at CMD-2

Author: E. P. Solodov, V.A. Sidorov, A.S. Popov, K.Yu. Mikhailov, P.Yu. Stepanov, R.R. Akhmetshin, A.N. Skrinsky, Vassili Kazanin, P.A. Lukin, P. Krokovny, T.A. Purlatz, A.V. Bragin, A.L. Sibidanov, V.M. Titov, S.I. Eidelman, V.M. Aulchenko, E.V. Anashkin, Yu. M. Shatunov, S.V. Karpov, A.A. Grebeniuk, N.M. Ryskulov, F.V. Ignatov, A.S. Kuzmin, B.I. Khazin, A.V. Otboev, G.V. Fedotovitch, N. Gabyshev, A.G. Shamov, D.N. Grigoriev, V.S. Okhapkin, V. W. Hughes, Ivan Koop, Yu.V. Yudin, V.Sh. Banzarov, Igor Nesterenko, I.G. Snopkov, N.I. Root, E.A. Perevedentsev, Alexander Valishev, L.M. Kurdadze, L.M. Barkov, D.V. Chernyak, P.M. Ivanov, N.S. Bashtovoy, A.E. Bondar, J. A. Thompson, M. Arpagaus, M. Lechner, D.V. Bondarev, V.P. Smakhtin, A.A. Ruban, I.B. Logashenko, A.I. Sukhanov, B.A. Shwartz, and S.G. Zverev
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Branching fraction, Atomic physics, Energy (signal processing), High Energy Physics - Experiment
Abstract: Using 15.1^{-1} of data collected by CMD-2 in the $\phi$-meson energy range, the branching ratio of the conversion decay $\phi\to\pi^0e^+e^-$ has been measured for the first time: B(\phi\to\pi^0e^+e^-) = (1.22 \pm 0.34 \pm 0.21) \cdot 10 ^{-5}., Comment: 13 pages, 6 PostScript figures, uses refmerge.sty. To be published in Phys. Lett. B
Published: 2000

197. a_1(1260) dominance in the process e+e- \to 4\pi at energies 1.05--1.38 GeV

Author: Igor Nesterenko, A.E. Bondar, G.V. Fedotovitch, N.I. Root, P.Yu. Stepanov, B.I. Khazin, Alexander Valishev, V.Sh. Banzarov, A.S. Kuzmin, A.I. Sukhanov, S.I. Eidelman, D.N. Grigoriev, B.A. Shwartz, P.M. Ivanov, A. I. Milstein, V.P. Smakhtin, V.M. Aulchenko, S.G. Zverev, N.S. Bashtovoy, A.G. Chertovskikh, E.A. Perevedentsev, N.M. Ryskulov, I.G. Snopkov, E.V. Anashkin, M. Arpagaus, P.A. Lukin, D.V. Chernyak, A.S. Popov, A.L. Sibidanov, I.B. Logashenko, A.V. Otboev, T.A. Purlatz, A.A. Polunin, L.M. Barkov, V.S. Okhapkin, K.Yu. Mikhailov, N. Gabyshev, V.M. Titov, L.M. Kurdadze, Yu.V. Yudin, V. W. Hughes, A.V. Bragin, R.R. Akhmetshin, Yu. M. Shatunov, E. P. Solodov, D.V. Bondarev, A.A. Ruban, Ivan Koop, Vassili Kazanin, A. P. Lysenko, J. A. Thompson, A.I. Shekhtman, A.N. Skrinsky, M. S. Korostelev, A.A. Grebeniuk, A.G. Shamov, V.A. Sidorov, S.V. Karpov, A.S. Dvoretsky, and P. Krokovny
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Range (particle radiation), Electron–positron annihilation, Atomic physics, High Energy Physics - Experiment
Abstract: First results of the study of the process e+e- \to 4\pi by the CMD-2 collaboration at VEPP-2M are presented for the energy range 1.05--1.38 GeV. Using an integrated luminosity of 5.8 pb^{-1}, energy dependence of the processes e+e- \to \pi^+\pi^- 2\pi^0 and e+e- \to 2\pi^+ 2\pi^- has been measured. Analysis of the differential distributions demonstrates the dominance of the a_1\pi and \omega\pi intermediate states. Upper limits for the contributions of other alternative mechanisms are also placed., Comment: 31 pages, 13 figures, LaTex2e
Published: 1999

198. Erratum to: 'Study of the decay ϕ→π+π−π0 with the KLOE detector' [Phys. Lett. B 561 (2003) 55]

Author: Leonardo Merola, S. Ventura, P. Franzini, G. De Zorzi, Massimo Casarsa, F. Ambrosino, P. Valente, Filippo Ceradini, S. Bertolucci, A. G. Denig, G. Finocchiaro, O. Erriquez, A. Ferrari, G. Lanfranchi, F. Perfetto, B. Valeriani, G. Venanzoni, F. Cervelli, T. Spadaro, C. Bloise, Enrico Pasqualucci, Paolo Ciambrone, M. L. Ferrer, A. Nedosekin, G. Chiefari, E. Santovetti, L. Passalacqua, G.L. Tong, V. V. Kulikov, Vincenzo Patera, F Bellini, E. De Lucia, C. Di Donato, F. Nguyen, P. Branchini, M. Dreucci, C. Bacci, Addolorata Farilla, Cesare Bini, A. Sciubba, F. Grancagnolo, G.W. Yu, Luca Tortora, C. Forti, S.W. Han, P. De Simone, M. Palutan, Alessandra Doria, S. Dell'Agnello, C. Kuo, S. Conetti, D. Leone, Juliet Lee-Franzini, G. De Robertis, M. Napolitano, P. Silano, B. Di Micco, Edoardo Gorini, G. Felici, R. D. Schamberger, A. Franceschi, F. Lu, M. A. Matsyuk, P. Gauzzi, Emilio Petrolo, Giuseppe Pirozzi, F. Bossi, T. Capussela, Paolo Santangelo, Pierluigi Campana, F. Murtas, G. Saracino, R. Messi, Massimo Antonelli, M. Moulson, S. Giovannella, Francesco Lacava, G. Carboni, V. Casavola, Ludovico Pontecorvo, A.L. Sibidanov, R. Versaci, Alberto Aloisio, Igor Sfiligoi, Y. Xu, W. Kluge, Barbara Sciascia, Andrea Ventura, C. Gatti, R. Caloi, Margherita Primavera, V. Bocci, W. Mei, A. Antonelli, E. Graziani, Stefano Veneziano, M. Incagli, M. Martemianov, G. Bencivenni, Fabrizio Scuri, F. Ruggieri, G. Capon, A. Passeri, S.A. Bulychjov, S. Miscetti, E. Spiriti, F. Cevenini, E. Valente, G. Cataldi, L. Ingrosso, G. Cabibbo, S. Di Falco, S. Müller, and A. Di Domenico
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Amplitude, Density distribution, Electron–positron annihilation, Detector, Pi, Dalitz plot, High Energy Physics::Experiment, Charge (physics), Nuclear Experiment, Omega
Abstract: We present a study of the reaction e+e- --> pi+pi-pi0 at the phi peak W=M(phi)=1019.4 MeV observed with the KLOE detector at Dafne. The reaction is dominated by phi production and decay, e+e- --> phi --> pi+pi-pi0. From a fit to the Dalitz plot density distribution we obtain the rho-meson parameters for its three charge states. We also find the relative amplitudes for phi --> rhopi and phi -> pi+pi-pi0 and the cross-section for e+e- --> omega pi0 with omega --> pi+pi-.
Published: 2005

199. Study of the process e+e−→pp¯ in the c.m. energy range from threshold to 2 GeV with the CMD-3 detector

Author: R.R. Akhmetshin, A.N. Amirkhanov, A.V. Anisenkov, V.M. Aulchenko, V.Sh. Banzarov, N.S. Bashtovoy, D.E. Berkaev, A.E. Bondar, A.V. Bragin, S.I. Eidelman, D.A. Epifanov, L.B. Epshteyn, A.L. Erofeev, G.V. Fedotovich, S.E. Gayazov, A.A. Grebenuk, S.S. Gribanov, D.N. Grigoriev, E.M. Gromov, F.V. Ignatov, V.L. Ivanov, S.V. Karpov, A.S. Kasaev, V.F. Kazanin, B.I. Khazin, A.N. Kirpotin, I.A. Koop, O.A. Kovalenko, A.N. Kozyrev, E.A. Kozyrev, P.P. Krokovny, A.E. Kuzmenko, A.S. Kuzmin, I.B. Logashenko, P.A. Lukin, K.Yu. Mikhailov, V.S. Okhapkin, A.V. Otboev, Yu.N. Pestov, S.G. Pivovarov, A.S. Popov, G.P. Razuvaev, A.L. Romanov, A.A. Ruban, N.M. Ryskulov, A.E. Ryzhenenkov, V.E. Shebalin, D.N. Shemyakin, B.A. Shwartz, D.B. Shwartz, A.L. Sibidanov, P.Yu. Shatunov, Yu.M. Shatunov, E.P. Solodov, V.M. Titov, A.A. Talyshev, A.I. Vorobiov, Yu.V. Yudin, and Yu.M. Zharinov
Subjects: lcsh:Physics, lcsh:QC1-999
Abstract: Using a data sample of 7.7 pb−1 collected with the CMD-3 detector at the VEPP-2000 e+e− collider we select about 2900 events of the process e+e−→pp¯ and measure its cross section at 12 energy points with about 6% systematic uncertainty. From the angular distribution of produced nucleons we obtain the ratio GE/GM.
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200. Upper limit on the η→γγγ branching ratio with the KLOE detector

Author: Juliet Lee-Franzini, S. Müller, S. Bertolucci, S. Giovannella, G. Finocchiaro, O. Erriquez, A. Ferrari, G. Lanfranchi, Massimo Testa, G. Carboni, S. Dell'Agnello, G. De Zorzi, F. Ambrosino, B. Di Micco, C. Bloise, S. Miscetti, G. Chiefari, Margherita Primavera, Emilio Petrolo, F. Perfetto, B. Valeriani, Filippo Ceradini, F. Cervelli, E. Spiriti, C. Di Donato, M. Incagli, Enrico Pasqualucci, M. Moulson, C. Bacci, Cesare Bini, C. Gatti, Fabrizio Scuri, I. Villella, T. Spadaro, R. Versaci, Igor Sfiligoi, S. Di Falco, Paolo Ciambrone, A. Denig, Stefano Veneziano, Alberto Aloisio, G. Bencivenni, S. Ventura, P. Franzini, E. Santovetti, Francesco Lacava, W. Mei, R. Messi, Barbara Sciascia, Andrea Ventura, G. Felici, L. Merola, A. Di Domenico, A.L. Sibidanov, Addolorata Farilla, C. Forti, Paolo Santangelo, Pierluigi Campana, G. Xu, F. Bossi, Alessandra Doria, F. Murtas, M. Napolitano, S. Conetti, G. Saracino, V. Bocci, M. A. Matsyuk, Vincenzo Patera, L. Passalacqua, P. De Simone, P. Branchini, R. Caloi, G. Venanzoni, M. Dreucci, Massimo Antonelli, V. V. Kulikov, T. Capussela, W. Kluge, Luca Tortora, A. Sciubba, Edoardo Gorini, E. De Lucia, M. L. Ferrer, Ludovico Pontecorvo, F. Cevenini, M. Martemianov, S.A. Bulychjov, A. Antonelli, R. D. Schamberger, P. Valente, D. Leone, F. Nguyen, E. Graziani, M. Palutan, F. Lu, P. Gauzzi, G. Capon, A. Passeri, Aloisio, Alberto, Ambrosino, Fabio, A., Antonelli, M., Antonelli, C., Bacci, G., Bencivenni, S., Bertolucci, C., Bini, C., Bloise, V., Bocci, F., Bossi, P., Branchini, S. A., Bulychjov, R., Caloi, P., Campana, G., Capon, T., Capussela, G., Carboni, F., Ceradini, F., Cervelli, F., Cevenini, Chiefari, Giovanni, P., Ciambrone, S., Conetti, E., De lucia, P., De simone, G., De zorzi, S., Dell'Agnello, A., Denig, A., Di domenico, C., Di donato, S., Di Falco, B., Di Micco, A., Doria, M., Dreucci, O., Erriquez, A., Farilla, G., Felici, A., Ferrari, M. L., Ferrer, G., Finocchiaro, C., Forti, P., Franzini, C., Gatti, P., Gauzzi, S., Giovannella, E., Gorini, E., Graziani, M., Incagli, W., Kluge, V., Kulikov, F., Lacava, G., Lanfranchi, J., Lee Franzini, D., Leone, F., Lu, M., Martemianov, M., Matsyuk, W., Mei, Merola, Leonardo, R., Messi, S., Miscetti, M., Moulson, S., Müller, F., Murta, Napolitano, Marco, F., Nguyen, M., Palutan, E., Pasqualucci, L., Passalacqua, A., Passeri, V., Patera, Perfetto, Francesco, E., Petrolo, L., Pontecorvo, M., Primavera, P., Santangelo, E., Santovetti, Saracino, Giulio, R. D., Schamberger, B., Sciascia, A., Sciubba, F., Scuri, I., Sfiligoi, A., Sibidanov, T., Spadaro, E., Spiriti, M., Testa, L., Tortora, P., Valente, B., Valeriani, G., Venanzoni, S., Veneziano, A., Ventura, S., Ventura, R., Versaci, I., Villella, and G., Xu
Subjects: Physics, Nuclear and High Energy Physics, Meson, Branching fraction, hadron physic, Detector, Radius, Calorimeter, Momentum, Nuclear physics, Particle decay, ETA-MESON, KLOE, Dimensionless quantity
Abstract: =547.3 MeV.The KLOE detector consists of a large-volume drift chamber [3] (3.3 m lengthand 2 m radius), operated with a 90% helium-10% isobutane gas mixture, andasampling calorimeter [4]made oflead andscintillating ﬁbres. The calorimeterconsists ofacylindrical barreland two endcaps providing a solid anglecoverageof 98%. A superconducting coil surrounds the entire detector and produces asolenoidal ﬁeld B=0.52 T.Tracks are reconstructed in the drift chamber with a momentum resolution ofσ(p
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