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335 results on '"K. T. Kim"'

201. 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
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202. Evidence for B- → τ- ν(τ) with a hadronic tagging method using the full data sample of Belle

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

203. 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
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204. 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
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205. 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
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206. 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
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207. 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
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208. 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
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209. 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
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210. 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
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211. 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
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212. Evidence for the η(b)(2S) and observation of h(b)(1P)→η(b)(1S)γ and h(b)(2P)→η(b)(1S)γ

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

213. 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
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214. 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
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215. First Observation ofBs0→J/ψηandBs0→J/ψη′

Author: E. Won, A. Bozek, Satoshi Tanaka, K. Arinstein, R. Mizuk, C. H. Wang, D. M. Asner, Y. Teramoto, Stephen Lars Olsen, E. Nakano, Yukinori Sato, V. Gaur, A.E. Bondar, M. Shapkin, G. B. Mohanty, M. Röhrken, M. Bischofberger, Nagao Kobayashi, P. Kapusta, V. Zhilich, Y. F. Liu, H. Nakazawa, M. C. Chang, O. Brovchenko, O. Nitoh, B Bhuyan, Y. Iwasaki, K. Hayasaka, A. J. Schwartz, N. Katayama, Rakesh Kumar, Phillip Urquijo, H. Sahoo, Chang Liu, M. Iwabuchi, T. A. Shibata, S. Okuno, A. Ishikawa, Leo Piilonen, I. Adachi, J. Li, Y. Choi, M. Nakao, M. Sumihama, P. Kody, O. Schneider, R. Louvot, C. W. Park, K. M. Williams, A. Chen, Y. Unno, A. Vossen, T. Kuhr, J. Dalseno, S. Nishida, T. Sumiyoshi, A. M. Bakich, M. Bračko, H. O. Kim, P. Wang, V.E. Shebalin, Zhenyu Zhang, S. Esen, O. Seon, Y. S. Sohn, Frank Simon, K. Inami, Anze Zupanc, Andrey Sokolov, V. Bhardwaj, M. J. Kim, M. J. Lee, A.S. Kuzmin, I. Nakamura, Norihito Muramatsu, S. K. Choi, S. H. Lee, T. Peng, K. Nishimura, Pavel Krokovny, S. McOnie, J. Libby, J. E. Fast, J. Haba, B. R. Ko, T. Hara, Y. B. Hsiung, Toru Iijima, Kevin Varvell, M. Watanabe, K. Cho, Marko Petrič, M. Starič, Semen Eidelman, J. H. Kang, H. J. Hyun, P. Smerkol, Yongsun Kim, P. Krian, T. Ohshima, Y. Watanabe, T. Mori, Y. Sakai, K. Trabelsi, Y. M. Goh, H. K. Park, C. P. Shen, Yasuyuki Horii, J. G. Shiu, Y. Usov, C. Schwanda, A. Garmash, T. Kawasaki, H. Hayashii, Z. Natkaniec, W. S. Hou, B. G. Cheon, T. Julius, Po-Hsun Chen, R. Chistov, Z. Q. Liu, M. T. Prim, D. Matvienko, H. J. Kim, Y. Miyazaki, Z. Doleal, Y. Li, Hiroaki Aihara, R. Pestotnik, K. Kinoshita, T. Iwashita, T. E. Browder, J. Wicht, C. Z. Yuan, K. Senyo, Tagir Aushev, J. S. Lange, M. E. Sevior, Samo Korpar, G. Varner, S. Ogawa, Y. Hoshi, W. Ostrowicz, S. Stanič, Y. Yamashita, K. Sakai, V.M. Aulchenko, S. Uno, Sunmin Ryu, R. Itoh, M. Uchida, T. Sanuki, Sadaharu Uehara, G. Pakhlova, J. B. Kim, V. Vorobyev, Y. J. Kwon, A. Drutskoy, K. T. Kim, G. Tatishvili, K. S. Park, T. K. Pedlar, A. Moll, and D. Liventsev
Subjects: Physics, KEKB, 010308 nuclear & particles physics, 0103 physical sciences, Analytical chemistry, General Physics and Astronomy, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment, 010306 general physics, 01 natural sciences
Abstract: We report first observations of B-s(0) -> J/psi eta and B-s(0) -> J/psi eta'. The results are obtained from 121.4 fb(-1) of data collected at the Gamma(5S) resonance with the Belle detector at the KEKB e(+)e(-) collider. We obtain the branching fractions B(B-s(0)-> J/psi eta')=[5.10 +/- 0.50(stat)+/- 0.25(syst)(-0.79)(+1.14)(N-Bs(*)(B) over bars(*)] X 10(-4,) B(B-s(0)-> J/psi eta') = [3.71 +/- 0.61(stat)+/-(+0.83)(-0.57)(N-Bs(*)(B) over bars(*)] X 10(-4). The ratio of the two branching fractions is measured to be B(B-s -> J/psi eta')/B(B-s -> J/psi eta) = 0.73 +/- 0.14(stat) +/- 0.02(syst).
Published: 2012
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216. 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
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217. 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
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218. 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
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219. 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
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220. Non-Uniqueness in Softening Damage and Cohesive Fracture Models for Concrete or Bone Caused by Ignoring the Size Effect

Author: Zdeněk P. Bažant, K. T. Kim, Christian G. Hoover, and Qiang Yu
Subjects: Materials science, Energy absorption, Non uniqueness, Ultimate tensile strength, Fracture (geology), Range (statistics), Fracture mechanics, Composite material, Softening, Beam (structure)
Abstract: As recently discovered, disregard of the size effect is a major source of uncertainty in the work-of-fracture (or Hillerborg’s) test of the fracture energy and in the calibration of the softening law underlying the cohesive (or fictitious) crack models or the nonlocal softening damage models for concrete and other quasibrittle materials. The classical work-of-fracture test of a notched beam of one size, pioneered for concrete by Hillerborg et al., can deliver acceptable results only for the total fracture energy GF. It is shown that the same complete load-deflection curve of a notched specimen can be closely approximated with stress-separation curves in which the values of tensile strength f't differ by 77% and the values of initial fracture energy Gf by 68%. This ambiguity means that that the one-size work-of-fracture test alone cannot provide a sufficient basis for quasibrittle fracture analysis, especially not for predicting the load capacity of quasibrittle structures. It is found, however, that if this test is supplemented by size effect tests with a sufficient size range, the cohesive crack model or nonlocal softening damage model can be identified unambiguously and render the fracture analysis of quasibrittle structures unambiguously realistic. Vice versa, the size effect fracture tests alone do not suffice for determining the total fracture energy GF. They provide a sufficient basis only for maximum load predictions of normal structures, but not for computing the post-peak softening with the energy absorption capability, nor the peak loads of extremely large quasibrittle structures. However, if the size effect tests of sufficient range are supplemented by one complete softening loaddeflection curve of notched specimens, an unambiguous identification of the peak loads and postpeak responses of structures becomes possible. To this end, the notched specimen tests must be conducted within a certain optimum size range in relation to the material inhomogeneity size. This range is established by extending the previous analysis of Cusatis and Schauffert. A further important general implication of the demonstrated non-uniqueness is that numerous recent studies in which multiscale or other softening damage models are verified by a few tests of one size only are virtually worthless.
Published: 2012
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221. Evidence for CP violation in the decay D+ → K(S)(0)π+

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

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

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

Author: T. A. Shibata, H. Miyata, Y. Hoshi, S.I. Eidelman, K. Hayasaka, S. L. Olsen, Y. B. Hsiung, M. Z. Wang, K. Kinoshita, K. Arinstein, C. Kiesling, H. K. Park, W. S. Hou, Y. Yamashita, Z. Q. Liu, Marko Petrič, T. Aushev, O. Nitoh, L. E. Piilonen, S. Nishida, G. Pakhlova, J. G. Shiu, P. Smerkol, M. Uchida, M. J. Kim, M. Röhrken, K. Chilikin, G. B. Mohanty, Nagao Kobayashi, H. Sahoo, T. Iijima, A. J. Schwartz, M. Starič, T. Uglov, Andrey Sokolov, T. Kumita, S. Uehara, K. T. Kim, J. H. Kang, Y. Miyazaki, Y. Sakai, G. S. Varner, T. Julius, C. Z. Yuan, R. Louvot, Phillip Urquijo, R. Pestotnik, I. S. Cho, V.E. Shebalin, Po-Hsun Chen, Sunmin Ryu, R. Chistov, E. Won, R. Itoh, Z. Drásal, James E. Fast, V.N. Zhilich, Peter Kodys, D. M. Asner, Y. Iwasaki, Y. J. Kwon, H. Aihara, K. Trabelsi, K. Sumisawa, J. Li, C. H. Wang, Yasuyuki Horii, Yang Li, O. Schneider, C. P. Shen, K. Miyabayashi, J. B. Kim, C. Liu, G. Tatishvili, Y. Choi, K. Inami, A. Ishikawa, A. Bay, E. Nakano, A. Bozek, V. Gaur, A. Vossen, S. Koblitz, Yongsun Kim, S. Uno, C. Schwanda, B. G. Cheon, B. Golob, P. Križan, C. C. Zhang, Z. Doležal, M. Watanabe, M. Iwabuchi, T. Kawasaki, O. Seon, Frank Simon, B. Bhuyan, S. McOnie, J. S. Lange, H. J. Kim, T. E. Browder, T. Nozaki, K. M. Williams, A. Chen, Anze Zupanc, Y. S. Sohn, Z. P. Zhang, H. O. Kim, S. Korpar, Sang Hoon Lee, Y. Unno, T. Sanuki, T. Iwashita, M. Sumihama, Y. Watanabe, S. Okuno, Y. Teramoto, Bruce Yabsley, J. Libby, M. Bračko, A. M. Bakich, Z. Natkaniec, T. Ohshima, N. Gabyshev, Samo Stanič, J. Haba, K. Cho, B. R. Ko, K. Sakai, K. S. Park, V. Bhardwaj, B.A. Shwartz, Vladimir Zhulanov, and M. E. Sevior
Subjects: Nuclear physics, Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, D meson, General Physics and Astronomy, Resonance, CP violation, 010306 general physics, 01 natural sciences
Abstract: We search for CP violation in Cabibbo-suppressed charged D meson decays by measuring the difference between the CP-violating asymmetries for the Cabibbo-suppressed decays D(±)→K(+)K(-)π(±) and the Cabibbo-favored decays D(s)(±)→K(+)K(-)π(±) in the K(+)K(-) mass region of the ϕ resonance. Using 955 fb(-1) of data collected with the Belle detector, we obtain A(CP)(D+→ϕπ+)=(+0.51±0.28±0.05)%. The measurement improves the sensitivity of previous searches by more than a factor of 5. We find no evidence for direct CP violation.
Published: 2012
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224. First observation of B(s)(0) → J/ψη and B(s)(0) → J/ψη'

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

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

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

226. Evidence for DirectCPViolation inB±→ηh±and Observation ofB0→ηK0

Author: H. O. Kim, K. Inami, T. Kuhr, Frank Simon, M. Z. Wang, K. Kinoshita, Po-Hsun Chen, M. J. Kim, V. Gaur, A.E. Bondar, M. Starič, M. Nakao, K. Cho, Y. Sakai, S. McOnie, T. Kumita, P. Chang, T. A. Shibata, H. Miyata, Y. Watanabe, A. M. Bakich, T. Ohshima, E. Nakano, Jung-Hyun Kim, K. Trabelsi, M. Bischofberger, Y. Hoshi, C. P. Shen, J. G. Shiu, E. Solovieva, B. R. Ko, J. B. Kim, K. Hayasaka, Y. Iwasaki, Y. J. Kwon, M. C. Chang, A. Ishikawa, T. K. Pedlar, T. Aushev, S. Okuno, M. Ritter, O. Schneider, N. Gabyshev, C. W. Park, A. Moll, P. Križan, J. Li, M. Iwabuchi, H. K. Park, Y. Yamashita, J. Yamaoka, K. F. Chen, Andrey Sokolov, Yoshinobu Unno, J. H. Kang, Y. Teramoto, K. Nishimura, K. Senyo, T. Kawasaki, O. Nitoh, James E. Fast, M. Uchida, Sang Hoon Lee, R. Louvot, M. Sumihama, T. Sanuki, V.E. Shebalin, J. Libby, Y. Chao, J. Haba, Y. B. Hsiung, G. S. Varner, K. Belous, S. Korpar, Hiroaki Aihara, Satoshi Tanaka, P. Wang, M. Bračko, T. Iwashita, Y. S. Sohn, V.N. Zhilich, Peter Kodys, Z. Drásal, S. Uno, C. Schwanda, C. H. Wang, M. E. Sevior, Nagao Kobayashi, H. Sahoo, T. Uglov, M. Shapkin, M. Röhrken, K. Chilikin, S. Neubauer, K. Miyabayashi, A. J. Schwartz, H. J. Kim, R. Pestotnik, Marko Petrič, H. J. Hyun, P. Smerkol, B. G. Cheon, D. Matvienko, K. M. Williams, A. Chen, D. M. Asner, G. Tatishvili, Anze Zupanc, B. Bhuyan, T. E. Browder, M. Danilov, A. Bozek, A. Drutskoy, S. Nishida, K. T. Kim, G. B. Mohanty, C. T. Hoi, Y. Yusa, B. Golob, V. Bhardwaj, Z. Q. Liu, Y. Choi, W. S. Hou, Y. M. Goh, E. Won, S.I. Eidelman, and L. E. Piilonen
Subjects: Physics, Particle physics, KEKB, 010308 nuclear & particles physics, 0103 physical sciences, Analytical chemistry, General Physics and Astronomy, CP violation, 010306 general physics, 01 natural sciences
Abstract: We report measurements of the branching fractions and CP asymmetries for B(±)→ηh(±) (h=K or π) and the observation of the decay B(0)→ηK(0) from the final data sample of 772×10(6) B B pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured branching fractions are B(B(±)→ηK(±))=(2.12±0.23±0.11)×10(-6), B(B(±)→ηπ(±))=(4.07±0.26±0.21)×10(-6), and B(B(0)→ηK(0))=(1.27(-0.29)(+0.33)±0.08)×10(-6), where the last decay is observed for the first time with a significance of 5.4 standard deviations (σ). We also find evidence for CP violation in the charged B modes, A(CP)(B(±)→ηK(±))=-0.38±0.11±0.01 and A(CP)(B(±)→ηπ(±))=-0.19±0.06±0.01 with significances of 3.8 σ and 3.0 σ, respectively. For all measurements, the first and second uncertainties are statistical and systematic, respectively.
Published: 2012
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227. First Observation of theP-Wave Spin-Singlet Bottomonium Stateshb(1P)andhb(2P)

Author: G. B. Mohanty, Tariq Aziz, T. Hara, Y. M. Goh, Andrey Sokolov, V.N. Zhilich, Y. Yamashita, M. Röhrken, S. E. Vahsen, K. Chilikin, I. Jaegle, K. Miyabayashi, J. H. Kang, K. Nishimura, A. Garmash, P. Chang, T. Iijima, W. S. Hou, Y. Sakai, James E. Fast, S. Stanič, M. Starič, B.A. Shwartz, A. Vinokurova, Semen Eidelman, Nagao Kobayashi, O. Nitoh, T. Kuhr, S. Okuno, Tagir Aushev, Y. Onuki, Y. Iwasaki, K. Belous, Y. J. Kwon, Hiroaki Aihara, Jolanta Brodzicka, Yasushi Nagasaka, C. Z. Yuan, G. Tatishvili, K. Cho, B. Golob, V. Bhardwaj, I. S. Cho, Y. Teramoto, Bruce Yabsley, E. L. Barberio, O. Schneider, J. S. Lange, D. Epifanov, B. R. Ko, Sang Hoon Lee, J. Libby, R. Mussa, J. G. Shiu, K. Trabelsi, S. Uno, J. Dalseno, Sunmin Ryu, E. Solovieva, T. K. Pedlar, T. Sanuki, A. Ishikawa, S. Nishida, E. Won, A.S. Kuzmin, R. Pestotnik, T. Nozaki, M. Nakao, P. Križan, M. Ritter, Stephen Lars Olsen, H. Sahoo, C. H. Wang, M. E. Sevior, G. Pakhlova, E. Nakano, X. L. Wang, Leo Piilonen, M. J. Kim, T. Ohshima, Anton Poluektov, J. Li, O. Seon, Frank Simon, T. Kumita, K. Senyo, I. Tikhomirov, A. Chen, T. Julius, Po-Hsun Chen, T. Kawasaki, T. Uglov, T. E. Browder, Z. Drásal, M. Uchida, R. Chistov, Y. S. Sohn, D. Liventsev, H. Nakazawa, S. Esen, A. J. Schwartz, Chang Liu, Anze Zupanc, M. Shapkin, H. Kichimi, H. Hayashii, P. Pakhlov, Marko Petrič, H. J. Hyun, P. Smerkol, S. Neubauer, B. G. Cheon, M. Feindt, D. Matvienko, Y. Miyazaki, M. Iwabuchi, K. Kinoshita, Y. B. Hsiung, D. M. Asner, H. Park, Samo Korpar, S. Koblitz, A. Drutskoy, J. Wicht, B. Bhuyan, T. A. Shibata, H. Miyata, Y. Hoshi, K. Hayasaka, M. Danilov, Kevin Varvell, Y. Watanabe, V. Gaur, S. McOnie, J. MacNaughton, H. O. Kim, K. Arinstein, R. Mizuk, Yoshinobu Unno, M. Sumihama, Yongsun Kim, C. Schwanda, R. Louvot, V.E. Shebalin, G. Varner, K. T. Kim, A.E. Bondar, Y. Choi, I. Adachi, J. B. Kim, A. M. Bakich, S. Uehara, N. Katayama, Z. Natkaniec, M. Bračko, and N. Gabyshev
Subjects: Physics, 010308 nuclear & particles physics, Electron–positron annihilation, General Physics and Astronomy, Resonance, 01 natural sciences, 7. Clean energy, Crystallography, KEKB, Nuclear magnetic resonance, 0103 physical sciences, Singlet state, Spectrum analysis, 010306 general physics, Hyperfine structure
Abstract: We report the first observations of the spin-singlet bottomonium states h(b)(1P) and h(b)(2P). The states are produced in the reaction e(+)e(-) --> h(b)(nP)pi(+)pi(-) using a 121.4 fb(-1) data sample collected at energies near the Y(5S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We determine M[h(b)(1P)] = (9898.2(-1.0-1.1)(+1.1+1.0)) MeV/c(2) and M[h(b)(2P)] = (10 259.8 +/- 0.6(-1.0)(+1.4)) MeV/c(2), which correspond to P-wave hyperfine splittings Delta M-HF = (+1.7 +/- 1.5) and (+0.5(-1.2)(+1.6)) MeV/c(2), respectively. The significances of the h(b)(1P) and h(b)(2P) are 5.5 sigma and 11.2 sigma, respectively. We find that the production of the h(b)(1P) and h(b)(2P) is not suppressed relative to the production of the Y(1S), Y(2S), and Y(3S).
Published: 2012
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228. Measurement of the CP-violation parameter sin2φ1 with a new tagging method at the Υ(5S) resonance

Author: Y, Sato, H, Yamamoto, H, Aihara, D M, Asner, V, Aulchenko, T, Aushev, T, Aziz, A M, Bakich, V, Bhardwaj, B, Bhuyan, M, Bischofberger, A, Bondar, A, Bozek, M, Bračko, T E, Browder, P, Chang, P, Chen, B G, Cheon, K, Chilikin, R, Chistov, I-S, Cho, K, Cho, S-K, Choi, Y, Choi, J, Dalseno, Z, Doležal, Z, Drásal, S, Eidelman, D, Epifanov, J E, Fast, V, Gaur, N, Gabyshev, Y M, Goh, B, Golob, J, Haba, T, Hara, K, Hayasaka, H, Hayashii, Y, Horii, Y, Hoshi, W-S, Hou, H J, Hyun, A, Ishikawa, R, Itoh, M, Iwabuchi, Y, Iwasaki, T, Iwashita, T, Julius, P, Kapusta, T, Kawasaki, H, Kichimi, C, Kiesling, H J, Kim, H O, Kim, J B, Kim, J H, Kim, K T, Kim, M J, Kim, S K, Kim, Y J, Kim, K, Kinoshita, B R, Ko, N, Kobayashi, P, Kodyš, S, Korpar, P, Križan, P, Krokovny, T, Kuhr, R, Kumar, T, Kumita, A, Kuzmin, Y-J, Kwon, J S, Lange, S-H, Lee, J, Li, Y, Li, C, Liu, Z Q, Liu, R, Louvot, S, McOnie, K, Miyabayashi, H, Miyata, R, Mizuk, G B, Mohanty, A, Moll, N, Muramatsu, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, S, Nishida, K, Nishimura, O, Nitoh, S, Ogawa, T, Ohshima, S, Okuno, S L, Olsen, Y, Onuki, W, Ostrowicz, P, Pakhlov, G, Pakhlova, C W, Park, H, Park, H K, Park, T K, Pedlar, M, Petrič, L E, Piilonen, A, Poluektov, M, Röhrken, S, Ryu, H, Sahoo, Y, Sakai, T, Sanuki, O, Schneider, C, Schwanda, A J, Schwartz, R, Seidl, K, Senyo, O, Seon, M E, Sevior, M, Shapkin, C P, Shen, T-A, Shibata, J-G, Shiu, B, Shwartz, A, Sibidanov, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, S, Stanič, M, Starič, J, Stypula, M, Sumihama, T, Sumiyoshi, S, Tanaka, G, Tatishvili, Y, Teramoto, K, Trabelsi, M, Uchida, T, Uglov, Y, Unno, S, Uno, P, Urquijo, G, Varner, K E, Varvell, C H, Wang, M-Z, Wang, P, Wang, X L, Wang, M, Watanabe, Y, Watanabe, J, Wicht, E, Won, B D, Yabsley, Y, Yamashita, Y, Yusa, Z P, Zhang, V, Zhilich, V, Zhulanov, and A, Zupanc
Abstract: We report a measurement of the CP-violation parameter sin2φ1 at the Υ(5S) resonance using a new tagging method, called "B-π tagging." In Υ(5S) decays containing a neutral B meson, a charged B, and a charged pion, the neutral B is reconstructed in the J/ψK(S)(0) CP-eigenstate decay channel. The initial flavor of the neutral B meson at the moment of the Υ(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-π(+) and B-π(-) tagged J/ψK(S)(0) yields, we determine sin2φ1=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

229. Reaction of the sera of the Korean children free from Hib invasive diseases against H. influenzae type B capsular polysaccharide antigen

Author: Kyung Hyo Kim, Dong Soo Kim, Moon Sung Park, K T Kim, Hyun Sook Kim, Kyoung Hee Kim, and Oh Hun Kwon
Subjects: Adult, Male, Adolescent, health care facilities, manpower, and services, Enzyme-Linked Immunosorbent Assay, medicine.disease_cause, complex mixtures, Immunoglobulin G, Haemophilus influenzae, Antigen, Pregnancy, Placenta, medicine, Humans, Child, Maternal-Fetal Exchange, Bacterial Capsules, Haemophilus Vaccines, Antigens, Bacterial, Korea, biology, business.industry, Polysaccharides, Bacterial, Antibody titer, Infant, Newborn, Infant, General Medicine, bacterial infections and mycoses, Fetal Blood, Antibodies, Bacterial, carbohydrates (lipids), Titer, medicine.anatomical_structure, Cord blood, Child, Preschool, Immunology, biology.protein, Female, Antibody, business, Research Article
Abstract: The purpose of our experiment is to examine the level of anti-Haemophilus influenza polysaccharide antibody titer in the Korean population. Using ELISA, the level of Hib-PS antibodies in 384 infants and children who were all free from Hib invasive diseases, was tested. And the blood of 50 mothers within 24 hours of delivery and cord blood from their respective full-term neonates was also tested. The transport of Hib-PS IgG and IgG subclasses in paired sera from mothers and neonates was also measured. The titer of Hib-PS IgG varies with age. At birth the mean optical density of cord blood was 1.028; however, it declined to 0.609 up to 6 months and further decline was noted up to 2 years to 0.488. Then the mean O.D. remained around 0.5 from 3 to 14 years of age. The mean O.D. of Hib-PS IgG in the mothers blood was 0.856. The ratio of mean O.D. of anti-Hib PS IgG antibody in the cord blood to that in the maternal blood was 1.20. The mean optical densities of IgG subclasses were: 1.18 for anti-Hib PS IgG1, 1.07 for anti-Hib PS IgG2, 1.01 for anti-Hib PS IgG3, and 1.09 for anti-Hib PS IgG4. The sera from Korean children of almost all age groups reacted to Hib-PS antigen on ELISA. Also the active transport of anti-Hib PS IgG antibody through placenta was observed. Among four IgG subclasses, only IgG1 transport had significant experimental meaning.
Published: 1994

230. Observation ofD+→K+η(′)and Search forCPViolation inD+→π+η(′)Decays

Author: H. Nakazawa, A. J. Schwartz, Chang Liu, Anze Zupanc, Yongsun Kim, C. Schwanda, Y. Teramoto, S. Suzuki, B. Golob, V. Bhardwaj, C. H. Wang, J. H. Kang, Y. Watanabe, R. Louvot, P. Wang, Marko Petrič, H. J. Hyun, P. Smerkol, S. Neubauer, B. G. Cheon, S. K. Kim, Y. Miyazaki, G. B. Mohanty, J. S. Lange, Samo Korpar, Y. Usov, Y. F. Liu, Y. S. Sohn, M. Uchida, K. Sakai, G. Varner, H. Kichimi, S. Uno, S. Nishida, Yang Li, Y. Hoshi, Toru Iijima, G. Pakhlova, E. Solovieva, Sunmin Ryu, H. O. Kim, A.E. Bondar, V. Zhilich, Peter Kodys, G. Tatishvili, T. Kumita, B Bhuyan, M. Watanabe, K. S. Park, T. E. Browder, S. E. Vahsen, E. Won, M. Bračko, W. S. Hou, H. K. Park, T. Hara, Y. Choi, Z. Doležal, T. Sanuki, P. Pakhlov, K. Arinstein, I. Adachi, R. Mizuk, Zhenyu Zhang, D. Liventsev, J. Li, Hiroaki Aihara, Y. B. Hsiung, Y. Iwasaki, R. Itoh, S. K. Choi, T. Sumiyoshi, M. J. Kim, A. M. Bakich, Sadaharu Uehara, J. B. Kim, O. Schneider, M. Starič, Leo Piilonen, T. A. Shibata, V. Gaur, H. Miyata, S. Stanič, Vladimir Zhulanov, M. E. Sevior, A. Bozek, Bruce Yabsley, Y. M. Goh, J. G. Shiu, Yasuyuki Horii, M. Sumihama, M. Bischofberger, A.S. Kuzmin, A. Ishikawa, H. Park, S. McOnie, K. Miyabayashi, A. Bay, O. Seon, Frank Simon, M. Nakao, K. Hayasaka, S. Koblitz, J. Libby, K. T. Kim, A. Drutskoy, Tagir Aushev, Y. Onuki, S. Ogawa, P. Križan, A. Vinokurova, I. S. Cho, Y. Yamashita, Y. J. Kwon, M. Iwabuchi, K. Cho, N. Katayama, S. H. Lee, E. L. Barberio, K. Trabelsi, J. Haba, T. Ohshima, O. Zyukova, T. Iwashita, O. Nitoh, S. Okuno, C. P. Shen, Andrey Sokolov, M. Yamauchi, Z. Natkaniec, T. Julius, Po-Hsun Chen, C. L. Lim, H. J. Kim, K. Nishimura, Nagao Kobayashi, N. Gabyshev, P. Chang, Jung-Hyun Kim, Y. Sakai, H. Sahoo, Semen Eidelman, J. Dalseno, M. Danilov, T. Uglov, Jolanta Brodzicka, M. J. Lee, Stephen Lars Olsen, E. Nakano, Jasvinder A. Singh, N. J. Joshi, M. Röhrken, K. M. Williams, A. Chen, Y. Unno, K. Inami, J. E. Fast, B. R. Ko, Z. Drásal, H. Hayashii, M. Z. Wang, K. Kinoshita, K. Chilikin, R. Pestotnik, A. Garmash, T. Kawasaki, K. Senyo, Yasushi Nagasaka, and D. M. Asner
Subjects: Phase difference, Physics, Annihilation, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, General Physics and Astronomy, CP violation, 010306 general physics, 01 natural sciences
Abstract: We report the first observation of the doubly Cabibbo-suppressed decays D(+)→K(+)η((')) using a 791 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The ratio of the branching fractions of doubly Cabibbo-suppressed relative to singly Cabibbo-suppressed D(+)→π(+)η((')) decays are B(D(+)→K(+)η)/B(D(+)→π(+)η)=(3.06±0.43±0.14)% and B(D(+)→K(+)η')/B(D(+)→π(+)η')=(3.77±0.39±0.10)%. From these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in D(+) decays, δ(TA), is (72±9)° or (288±9)°. We also report the most precise measurements of CP asymmetries to date: A(CP)(D(+)→π(+)η)=(+1.74±1.13±0.19)% and A(CP)(D(+)→π(+)η')=(-0.12±1.12±0.17)%.
Published: 2011
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231. Search for charmonium and charmoniumlike states inΥ(2S)radiative decays

Author: I. S. Cho, S. Okuno, M. Z. Wang, K. Kinoshita, H. Sahoo, M. Shapkin, M. Yamauchi, Y. Iwasaki, T. Aushev, R. Louvot, C. H. Wang, Zhenyu Zhang, K. T. Kim, K. Chilikin, G. B. Mohanty, Y. J. Kwon, T. Iwashita, Y. Teramoto, Y. Watanabe, O. Schneider, Bruce Yabsley, P. Pakhlov, Marko Petrič, A.S. Kuzmin, T. Iijima, V.N. Zhilich, H. J. Hyun, R. Pestotnik, P. Smerkol, H. Park, O. Nitoh, J. Haba, K. Belous, A. Bozek, S. Koblitz, Sang Hoon Lee, S.I. Eidelman, H. K. Park, O. Seon, Frank Simon, H. Hayashii, Y. Yamashita, Yasushi Nagasaka, Jung-Hyun Kim, Y. Onuki, M. J. Kim, B. Bhuyan, T. E. Browder, B. G. Cheon, Y. Sakai, M. Starič, Yang Li, S. Ogawa, J. Libby, T. Sanuki, K. Miyabayashi, S. Neubauer, K. Cho, A. Chen, J. H. Kang, K. Nishimura, M. Sumihama, Y. Choi, Hiroaki Aihara, J. S. Lange, D. Matvienko, M. Danilov, Y. M. Goh, Y. Miyazaki, E. Solovieva, H. Kichimi, E. L. Barberio, J. G. Shiu, Sunmin Ryu, J. Dalseno, B. R. Ko, K. Trabelsi, E. Won, R. Mussa, S. Nishida, J. Li, C. Z. Yuan, C. P. Shen, A. Ishikawa, J.E. Fast, T. K. Pedlar, D. M. Asner, X. L. Wang, B.A. Shwartz, P. Križan, M. Ritter, M. C. Chang, Z. Doležal, V. Gaur, Y. S. Sohn, M. E. Sevior, G. Tatishvili, H. Nakazawa, M. Iwabuchi, L. E. Piilonen, M. Nakao, G. Pakhlova, M. Uchida, H. J. Kim, S. McOnie, Chang Liu, T. Julius, D. Liventsev, H. O. Kim, Yoshinobu Unno, G. S. Varner, M. Feindt, S. L. Olsen, Y. Usov, R. Itoh, Y. B. Hsiung, P. Wang, Yongsun Kim, S. Uno, C. Schwanda, N. Kobayashi, T. A. Shibata, H. Miyata, Y. Hoshi, K. Hayasaka, K. Senyo, C. L. Lim, T. Kawasaki, Samo Stanič, M. Bračko, A. M. Bakich, Z. Natkaniec, T. Ohshima, X. R. Li, S. Uehara, N. Katayama, I. Adachi, and J. B. Kim
Subjects: Physics, Nuclear and High Energy Physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Analytical chemistry, Omega baryon, Quarkonium, 01 natural sciences, Omega, Nuclear physics, Charmed baryons, 0103 physical sciences, B meson, 010306 general physics, X(3872)
Abstract: Using a sample of 158 x 10(6) gamma (2S) events collected with the Belle detector, charmonium and charmoniumlike states with even charge parity are searched for in gamma (2S) radiative decays. No significant chi(cJ) or eta(c) signal is observed, and the following upper limits at 90% confidence level (C. L.) are obtained: B(gamma(2S)-> gamma chi(c0)) gamma chi(c1)) gamma chi(c2)) gamma eta(c)) gamma X(3872)) x B(X(3872) -> pi(+)pi(-) J/psi) gamma X(3872)) x B(X(3872) -> pi(+)pi(-)pi(0) J/psi) gamma X(3915)) x B(X(3915) -> omega J/psi) gamma Y(4140)) x B(Y(4140) -> phi J/psi) gamma X(4350) x B(X(4350) -> phi J/psi)) < 1.3 x 10(-6) at 90% C. L.
Published: 2011
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232. Search for lepton-number-violatingB+→D−ℓ+ℓ′+decays

Author: E. Nakano, O. Brovchenko, N. J. Joshi, S. Nishida, K. Trabelsi, W. S. Hou, C. P. Shen, A. Ishikawa, A. Bay, M. J. Kim, T. Iwashita, R. Mizuk, M. Z. Wang, K. Kinoshita, Kevin Varvell, M. Starič, S. L. Olsen, H. K. Park, Y. Onuki, J. G. Shiu, H. Nakazawa, J. Dalseno, T. Iijima, K. T. Kim, Y. Yamashita, Andrey Sokolov, T. Kumita, Marko Petrič, O. Nitoh, H. J. Hyun, P. Smerkol, J. H. Kang, J. B. Singh, K. Nishimura, Kazuhiko Hara, S. K. Choi, H. Aihara, B. Golob, T. Aushev, Yongsun Kim, P. Krian, Y. B. Hsiung, Y. Usov, S. Uno, C. Schwanda, G. B. Mohanty, J. S. Lange, S. E. Vahsen, T. Kuhr, Y. Miyazaki, Z. Doleal, James E. Fast, Yasuyuki Horii, T. A. Shibata, H. Miyata, J. Li, S. Suzuki, M. Bischofberger, P. Pakhlov, Sunmin Ryu, M. J. Lee, D. M. Asner, K. Senyo, C. L. Lim, A.E. Bondar, E. Won, S. K. Kim, C. Liu, M. Röhrken, K. Chilikin, M. Bračko, M. Iwabuchi, T. Kawasaki, E. L. Barberio, O. Zyukova, R. Louvot, S. H. Kyeong, H. Park, A. Bozek, Y. Iwasaki, Y. J. Kwon, G. Tatishvili, Y. Hoshi, S.I. Eidelman, K. Hayasaka, S. Koblitz, V. Gaur, Y. Watanabe, M. Uchida, P. Chang, A. Drutskoy, Y. Unno, O. Schneider, Nagao Kobayashi, I. Adachi, M. Nakao, Yasushi Nagasaka, B. Bhuyan, D. Liventsev, T. Sumiyoshi, Sang Hoon Lee, Yang Li, T. E. Browder, J. B. Kim, B. G. Cheon, R. Pestotnik, A. Vinokurova, H. Hayashii, S. McOnie, G. S. Varner, Y. Choi, T. Sanuki, Anze Zupanc, L. E. Piilonen, I. S. Cho, H. J. Kim, Jung-Hyun Kim, J. Haba, H. Sahoo, Y. F. Liu, G. Pakhlova, Samo Stanič, T. Hara, S. Korpar, R. Itoh, Jolanta Brodzicka, Y. S. Sohn, P. Wang, M. Sumihama, P. Kody, T. Uglov, T. Julius, Y. Ushiroda, Vladimir Zhulanov, V.N. Zhilich, O. Seon, Frank Simon, K. M. Williams, A. Chen, S. Uehara, Po-Hsun Chen, C. H. Wang, N. Katayama, Z. P. Zhang, M. E. Sevior, K. Inami, H. O. Kim, Y. Sakai, Y. M. Goh, A. M. Bakich, K. Cho, Z. Natkaniec, T. Ohshima, S. Neubauer, E. Solovieva, C. C. Zhang, K. Miyabayashi, J. Libby, M. Watanabe, N. Gabyshev, A. Kuzmin, M. Yamauchi, B. R. Ko, S. Ogawa, K. S. Park, M. T. Prim, V. Bhardwaj, K. Sakai, S. Okuno, H. Kichimi, Y. Teramoto, Bruce Yabsley, and K. Suzuki
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, 01 natural sciences, Crystallography, Particle decay, KEKB, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, 0103 physical sciences, B meson, 010306 general physics
Abstract: We perform the first search for lepton-number-violating B{sup +}{yields}D{sup -}l{sup +}l{sup '+} decays, where l and l{sup '} stand for e or {mu}, using 772x10{sup 6} BB pairs accumulated at the {Upsilon}(4S) resonance with the Belle detector at the KEKB e{sup +}e{sup -} collider. No evidence for these decays has been found. Assuming uniform three-body phase space distributions for the D{sup -}l{sup +}l{sup '+} decays, we set the following upper limits on the branching fractions at 90% confidence level: B(B{sup +}{yields}D{sup -}e{sup +}e{sup +})
Published: 2011
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233. Observation ofB−→p¯ΛD0at Belle

Author: B. Bhuyan, T. E. Browder, K. T. Kim, I. S. Cho, J. B. Singh, M. Danilov, Kevin Varvell, M. Shapkin, C. H. Wang, Y. J. Kim, Frank Simon, S. Uno, C. Schwanda, O. Nitoh, S. Nishida, M. Feindt, H. Aihara, Y. B. Hsiung, C. P. Shen, X. L. Wang, M. D. Peters, H. K. Park, Y. Yamashita, J. S. Lange, Z. Natkaniec, M. Z. Wang, K. Kinoshita, C. Liu, E. Nakano, Marko Petrič, K. M. Williams, T. Iwashita, S. H. Lee, T. Aushev, M. Sumihama, M. Yamauchi, H. Miyata, Y. Hoshi, V. Gaur, K. Hayasaka, S. Eidelman, M. J. Kim, P. Pakhlov, H. J. Hyun, P. Smerkol, M. Uchida, B. G. Cheon, R. Louvot, M. Nakao, P. Kapusta, W. S. Hou, T. K. Pedlar, D. Liventsev, G. S. Varner, J. E. Fast, Y. Watanabe, H. Kichimi, Yasushi Nagasaka, S. L. Olsen, Alexei Kuzmin, H. Park, A. Bozek, S. McOnie, J. Haba, Y. Teramoto, Bruce Yabsley, R. Itoh, M. Starič, H. O. Kim, J. Libby, D. Matvienko, Y. F. Liu, Y. Chao, Y. Sakai, Y. Miyazaki, K. Belous, Byeong Rok Ko, H. Hayashii, T. Kuhr, Z. P. Zhang, C. Kiesling, B. Shwartz, Y. Choi, G. Tatishvili, J. G. Shiu, Sunmin Ryu, T.-A. Shibata, K. Cho, T. Hara, E. Won, K. Senyo, T. Kawasaki, J. Dalseno, E. Solovieva, Y. Onuki, P. Chang, Y. B. Li, Jung-Hyun Kim, Markus Roehrken, M. Bračko, V. M. Aulchenko, G. B. Mohanty, Y. Iwasaki, Y. J. Kwon, E. L. Barberio, Y. M. Goh, M. E. Sevior, J. B. Kim, O. Schneider, Zdenek Dolezal, S. Koblitz, Samo Stanič, A. M. Bakich, T. Ohshima, M. C. Chang, Y. S. Sohn, S. Neubauer, L. E. Piilonen, G. Pakhlova, T. Julius, Po-Hsun Chen, T. Sumiyoshi, Martin Ritter, T. Sanuki, S. Uehara, N. Katayama, I. Adachi, Y. Unno, S. Ogawa, M. Iwabuchi, A. Ishikawa, J. H. Kang, D. M. Asner, Nagao Kobayashi, P. Krizan, H. Sahoo, R. Pestotnik, A. Chen, Z. Drásal, and J. Li
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Resonance, Lambda, 01 natural sciences, law.invention, Near threshold, KEKB, law, 0103 physical sciences, 010306 general physics, Collider, Bar (unit)
Abstract: We study B- meson decays to (p) over bar Lambda D-(*)0 final states using a sample of 657 x 10(6) B (B) over bar events collected at the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The observed branching fraction for B- -> (p) over bar Lambda D-0 is (1.43(-0.25)(+0.28) +/-0.18) x 10(-5) with a significance of 8.1 standard deviations, where the uncertainties are statistical and systematic, respectively. Most of the signal events have the (p) over bar Lambda mass peaking near threshold. No significant signal is observed for B- -> (p) over bar Lambda D-0 and the corresponding upper limit on the branching fraction is 4.8 x 10(-5) at the 90% confidence level.
Published: 2011
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234. Evidence for direct CP violation in B±→ηh± and observation of B0→ηK0

Author: C-T, Hoi, P, Chang, H, Aihara, D M, Asner, T, Aushev, A M, Bakich, K, Belous, V, Bhardwaj, B, Bhuyan, M, Bischofberger, A, Bondar, A, Bozek, M, Bračko, T E, Browder, M-C, Chang, Y, Chao, A, Chen, K-F, Chen, P, Chen, B G, Cheon, K, Chilikin, K, Cho, Y, Choi, M, Danilov, Z, Drásal, A, Drutskoy, S, Eidelman, J E, Fast, V, Gaur, N, Gabyshev, Y M, Goh, B, Golob, J, Haba, K, Hayasaka, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, K, Inami, A, Ishikawa, M, Iwabuchi, Y, Iwasaki, T, Iwashita, J H, Kang, T, Kawasaki, H J, Kim, H O, Kim, J B, Kim, J H, Kim, K T, Kim, M J, Kim, K, Kinoshita, B R, Ko, N, Kobayashi, P, Kodyš, S, Korpar, P, Križan, T, Kuhr, T, Kumita, Y-J, Kwon, S-H, Lee, J, Li, J, Libby, Z Q, Liu, R, Louvot, D, Matvienko, S, McOnie, K, Miyabayashi, H, Miyata, G B, Mohanty, A, Moll, E, Nakano, M, Nakao, S, Neubauer, S, Nishida, K, Nishimura, O, Nitoh, T, Ohshima, S, Okuno, C W, Park, H K, Park, T K, Pedlar, R, Pestotnik, M, Petrič, L E, Piilonen, M, Ritter, M, Röhrken, H, Sahoo, Y, Sakai, T, Sanuki, O, Schneider, C, Schwanda, A J, Schwartz, K, Senyo, M E, Sevior, M, Shapkin, V, Shebalin, C P, Shen, T-A, Shibata, J-G, Shiu, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, M, Starič, M, Sumihama, S, Tanaka, G, Tatishvili, Y, Teramoto, K, Trabelsi, M, Uchida, T, Uglov, Y, Unno, S, Uno, G, Varner, C H, Wang, M-Z, Wang, P, Wang, Y, Watanabe, K M, Williams, E, Won, J, Yamaoka, Y, Yamashita, Y, Yusa, V, Zhilich, and A, Zupanc
Subjects: Uncertainty, Monte Carlo Method, Elementary Particles
Abstract: We report measurements of the branching fractions and CP asymmetries for B(±)→ηh(±) (h=K or π) and the observation of the decay B(0)→ηK(0) from the final data sample of 772×10(6) B ̅B pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured branching fractions are B(B(±)→ηK(±))=(2.12±0.23±0.11)×10(-6), B(B(±)→ηπ(±))=(4.07±0.26±0.21)×10(-6), and B(B(0)→ηK(0))=(1.27(-0.29)(+0.33)±0.08)×10(-6), where the last decay is observed for the first time with a significance of 5.4 standard deviations (σ). We also find evidence for CP violation in the charged B modes, A(CP)(B(±)→ηK(±))=-0.38±0.11±0.01 and A(CP)(B(±)→ηπ(±))=-0.19±0.06±0.01 with significances of 3.8 σ and 3.0 σ, respectively. For all measurements, the first and second uncertainties are statistical and systematic, respectively.
Published: 2011

235. First observation of radiativeB0→ϕK0γdecays and measurements of their time-dependentCPviolation

Author: K. Kinoshita, K. Inami, H. Hayashii, J. Li, Y. Watanabe, Yang Li, Y. Choi, A.E. Bondar, T. A. Shibata, H. Miyata, Y. Hoshi, S.I. Eidelman, S. E. Vahsen, S. Nishida, Jung-Hyun Kim, G. B. Mohanty, Y. S. Sohn, K. T. Kim, K. Hayasaka, A. J. Schwartz, J. Libby, Y. Iwasaki, M. Sumihama, P. Kody, Y. Ushiroda, S. L. Olsen, T. Iwashita, K. Trabelsi, T. Iijima, Y. J. Kwon, Marko Petrič, S. K. Kim, O. Brovchenko, H. J. Hyun, M. T. Prim, P. Smerkol, Y. Onuki, V.N. Zhilich, N. J. Joshi, Ping Zhou, Y. B. Hsiung, Sunmin Ryu, S. Okuno, O. Schneider, Y. Unno, K. Miyabayashi, T. Kuhr, E. Won, Yasuyuki Horii, I. Adachi, O. Seon, Frank Simon, V.M. Aulchenko, K. M. Williams, A. Chen, P. Pakhlov, J. B. Kim, E. L. Barberio, Z. Q. Liu, Y. Teramoto, Bruce Yabsley, D. Matvienko, A. Vinokurova, M. Shapkin, O. Nitoh, Y. Miyazaki, M. Röhrken, J. Haba, A. Bozek, D. M. Asner, S. Koblitz, K. Senyo, K. Cho, C. L. Lim, B. Bhuyan, G. Tatishvili, B.A. Shwartz, T. Kawasaki, M. J. Kim, T. E. Browder, D. Epifanov, R. Pestotnik, M. Starič, Z. Doleal, B. R. Ko, M. Uchida, P. Krian, Z. Drásal, T. Kumita, Y. Sakai, Vladimir Zhulanov, J. S. Lange, A. Kuzmin, D. Liventsev, M. E. Sevior, V. Bhardwaj, T. Nozaki, C. Z. Yuan, Anze Zupanc, W. S. Hou, G. S. Varner, Y. Yusa, E. Solovieva, R. Itoh, Yongsun Kim, S. Uno, C. Schwanda, Nagao Kobayashi, J. G. Shiu, H. Sahoo, T. Uglov, J. Dalseno, R. Mizuk, K. Sumisawa, B. G. Cheon, S. Suzuki, K. Belous, S. Korpar, R. Louvot, V.E. Shebalin, V. Gaur, M. Nakao, S. McOnie, H. J. Kim, Z. P. Zhang, H. O. Kim, C. Ng, Rakesh Kumar, M. Iwabuchi, T. Mori, T. Sumiyoshi, Sang Hoon Lee, T. Sanuki, L. E. Piilonen, G. Pakhlova, T. Julius, Po-Hsun Chen, A. M. Bakich, Z. Natkaniec, T. Ohshima, N. Gabyshev, Andrey Sokolov, J. H. Kang, K. Nishimura, James E. Fast, Samo Stanič, A. Ishikawa, C. Kiesling, C. W. Park, M. J. Lee, T. Peng, M. Bračko, K. Sakai, C. C. Zhang, M. Watanabe, H. K. Park, and Y. Yamashita
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Gamma ray, 01 natural sciences, Nuclear physics, Particle decay, Positron, KEKB, 0103 physical sciences, CP violation, B meson, 010306 general physics
Abstract: We report the first observation of the radiative decay B-0 -> phi K-0 gamma using a 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. We observe a signal of 37 +/- 8 events with a significance of 5.4 standard deviations including systematic uncertainties. The measured branching fraction is B(B-0 ->phi K-0 gamma) = (2.74 +/- 0.60 +/- 0.32) x 10(-6), where the uncertainties are statistical and systematic, respectively. We also report the first measurements of time-dependent CP-violation parameters: S-phi K0s gamma = +0.74(-1.05)(+0.72)(stat)(-0.024)(+0.10)(syst) and A phi(0)(Ks)gamma = +0.35 +/- 0.58(stat)(-0.10)(+0.23)(syst). Furthermore, we measure B(B+ -> phi K+gamma) = (2.48 +/- 0.30 +/- 0.24) x 10(-6), A(CP) = -0.03 +/- 0.11 +/- 0.08, and find that the signal is concentrated in the M-phi K mass region near threshold.
Published: 2011
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236. Search for CP violation in D± meson decays to ϕπ±

Author: M, Starič, H, Aihara, K, Arinstein, D M, Asner, T, Aushev, A M, Bakich, A, Bay, V, Bhardwaj, B, Bhuyan, A, Bozek, M, Bračko, T E, Browder, A, Chen, P, Chen, B G, Cheon, K, Chilikin, R, Chistov, I-S, Cho, K, Cho, Y, Choi, Z, Doležal, Z, Drásal, S, Eidelman, J E, Fast, V, Gaur, N, Gabyshev, B, Golob, J, Haba, K, Hayasaka, Y, Horii, Y, Hoshi, W-S, Hou, Y B, Hsiung, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, M, Iwabuchi, Y, Iwasaki, T, Iwashita, T, Julius, J H, Kang, T, Kawasaki, C, Kiesling, H J, Kim, H O, Kim, J B, Kim, K T, Kim, M J, Kim, Y J, Kim, K, Kinoshita, B R, Ko, N, Kobayashi, S, Koblitz, P, Kodyš, S, Korpar, P, Križan, T, Kumita, Y-J, Kwon, J S, Lange, S-H, Lee, J, Li, Y, Li, J, Libby, C, Liu, Z Q, Liu, R, Louvot, S, McOnie, K, Miyabayashi, H, Miyata, Y, Miyazaki, G B, Mohanty, E, Nakano, Z, Natkaniec, S, Nishida, O, Nitoh, T, Nozaki, T, Ohshima, S, Okuno, S L, Olsen, G, Pakhlova, H K, Park, K S, Park, R, Pestotnik, M, Petrič, L E, Piilonen, M, Röhrken, S, Ryu, H, Sahoo, K, Sakai, Y, Sakai, T, Sanuki, O, Schneider, C, Schwanda, A J, Schwartz, O, Seon, M E, Sevior, V, Shebalin, C P, Shen, T-A, Shibata, J-G, Shiu, B, Shwartz, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, S, Stanič, M, Sumihama, K, Sumisawa, G, Tatishvili, Y, Teramoto, K, Trabelsi, M, Uchida, S, Uehara, T, Uglov, Y, Unno, S, Uno, P, Urquijo, G, Varner, A, Vossen, C H, Wang, M-Z, Wang, M, Watanabe, Y, Watanabe, K M, Williams, E, Won, B D, Yabsley, Y, Yamashita, C Z, Yuan, C C, Zhang, Z P, Zhang, V, Zhilich, V, Zhulanov, and A, Zupanc
Abstract: We search for CP violation in Cabibbo-suppressed charged D meson decays by measuring the difference between the CP-violating asymmetries for the Cabibbo-suppressed decays D(±)→K(+)K(-)π(±) and the Cabibbo-favored decays D(s)(±)→K(+)K(-)π(±) in the K(+)K(-) mass region of the ϕ resonance. Using 955 fb(-1) of data collected with the Belle detector, we obtain A(CP)(D+→ϕπ+)=(+0.51±0.28±0.05)%. The measurement improves the sensitivity of previous searches by more than a factor of 5. We find no evidence for direct CP violation.
Published: 2011

237. Bounds on the width, mass difference and other properties ofX(3872)→π+π−J/ψdecays

Author: S. Eidelman, T. Aushev, P. Pakhlov, V.N. Zhilich, S. Uehara, Byeong Rok Ko, L. E. Piilonen, A. Kuzmin, N. Katayama, Marko Petrič, J. Libby, S. Neubauer, K. Miyabayashi, S. Okuno, G. Pakhlova, H. J. Hyun, P. Smerkol, Y. Teramoto, Y. Choi, Bruce Yabsley, A. Garmash, H. Park, A. Bozek, S. Koblitz, S. Ogawa, D. Matvienko, P. Chang, Y. Miyazaki, I. Adachi, T. Hara, M. Sumihama, Jung-Hyun Kim, D. M. Asner, Xiuwan Li, K. Senyo, C. L. Lim, T. Kawasaki, K. M. Williams, A. Chen, T. Julius, Po-Hsun Chen, Kevin Varvell, K. Kinoshita, J. G. Shiu, Z. Natkaniec, Z. Drásal, A. Drutskoy, T. Iijima, Y. M. Goh, Y. Onuki, Y. Sakai, G. Tatishvili, C. C. Zhang, M. Uchida, Yasushi Nagasaka, O. Zyukova, J. Li, A. Zupanc, K. Trabelsi, A. Vinokurova, Sunmin Ryu, J. B. Kim, E. Nakano, M. Watanabe, Meng Wang, D. Liventsev, R. Mussa, B. Bhuyan, H. Aihara, A.E. Bondar, Anton Poluektov, E. Won, G. S. Varner, Nagao Kobayashi, T. Kuhr, T. E. Browder, S. K. Kim, M. Shapkin, A. Ishikawa, A. Bay, M. Röhrken, K. Chilikin, H. O. Kim, K. Sakai, Y. Watanabe, Z. Doležal, O. Brovchenko, Samo Stanič, H. Kichimi, E. L. Barberio, Y. J. Kim, P. Križan, Y. S. Sohn, T. Sumiyoshi, O. Nitoh, Jeremy Dalseno, C. Liu, K. Cho, V. Gaur, Y. B. Hsiung, R. Itoh, H. Sahoo, P. Wang, H. Hayashii, Hyunyong Kim, K. T. Kim, N. J. Joshi, Y. B. Li, Andrey Sokolov, T. Uglov, T.-A. Shibata, M. Nakao, T. Sanuki, A. M. Bakich, C. Z. Yuan, J. B. Singh, S. K. Choi, E. Solovieva, M. Iwabuchi, A. J. Schwartz, S. H. Lee, H. Miyata, T. Ohshima, T. Iwashita, S. McOnie, J. H. Kang, K. Nishimura, R. Pestotnik, S. Nishida, I. S. Cho, M. Bischofberger, V. V. Zhulanov, Y. Unno, James E. Fast, K. Inami, Y. F. Liu, M. E. Sevior, B. G. Cheon, Y. Hoshi, W. S. Hou, X. L. Wang, K. Arinstein, N. Gabyshev, K. Hayasaka, O. Seon, Frank Simon, K. Belous, S. Korpar, Jolanta Brodzicka, M. Yamauchi, Yasuyuki Horii, J. Haba, C. H. Wang, H. K. Park, Y. Yamashita, M. J. Lee, M. Bračko, B. Golob, J. S. Lange, S. E. Vahsen, Y. Iwasaki, Y. J. Kwon, O. Schneider, M. J. Kim, M. Starič, T. Kumita, R. Louvot, V.E. Shebalin, Peter Kodys, D. Epifanov, K. S. Park, V. Bhardwaj, S. L. Olsen, S. Uno, C. Schwanda, G. B. Mohanty, and R. Mizuk
Subjects: Physics, Nuclear and High Energy Physics, Annihilation, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Analytical chemistry, Resonance, 01 natural sciences, Nuclear physics, KEKB, Isospin, 0103 physical sciences, Pi, 010306 general physics, X(3872)
Abstract: We present results from a study of X(3872) -> pi pi J/psi decays produced via exclusive B -> KX(3872) decays. We determine the mass to be M-X(3872) = (3871.85 +/- 0.27(stat) +/- 0.19(syst)) MeV, a 90% confidence level upper limit on the natural width of Gamma(X(3872)) K+X(3872)) X B(X(3872) -> pi(+)pi(-) J/psi) = (8.63 +/- 0.82(stat) +/- 0.52(syst)) X 10(-6), and a ratio of branching fractions B(B-0 -> (KX)-X-0(3872))/B(B+ -> K+X(3872)) = 0.50 +/- 0.14(stat)) +/- 0.04(syst). The difference in mass between the X(3872) -> pi(+)pi(-) J/psi signals in B+ and B-0 decays is Delta M-X(3872) = (-0.71 +/- 0.96(stat) +/- 0.19(syst)) MeV. A search for a charged partner of the X(3872) in the decays (0) -> K-X+ or B+ -> (KX+)-X-0, X+ -> pi(+)pi(0) J/psi resulted in upper limits on the product branching fractions for these processes that are well below expectations for the case that the X(3872) is the neutral member of an isospin triplet. In addition, we examine possible J(PC) quantum number assignments for the X(3872) based on comparisons of angular correlations between final state particles in X(3872) -> pi(+)pi(-) J/psi decays with simulated data for J(PC) values of 1(++) and 2(-+). We examine the influence of rho-omega interference in the M(pi(+)pi(-)) spectrum. The analysis is based on a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar meson pairs collected at the gamma(4S) resonance in the Belle detector at the KEKB e(+)e(-) collider.
Published: 2011
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238. The time-dependent alteration of anti-diuretic hormone system in hindlimb unloaded rats

Author: S Y, Chung, S K, Kim, C W, Hong, K W, Oh, K T, Kim, J G, Sul, J W, Chung, and M S, Kwon
Subjects: Male, Aquaporin 2, Vasopressins, Angiotensin II, Body Weight, Water, Blood Urea Nitrogen, Rats, Rats, Sprague-Dawley, Electrolytes, Kidney Tubules, Hindlimb Suspension, Creatinine, Animals, Diuretics, Proto-Oncogene Proteins c-fos, Supraoptic Nucleus, Paraventricular Hypothalamic Nucleus
Abstract: It is important to understand the mechanism on the fluid shift and volume regulation occurring in astronauts after spaceflight for future life in space. In the present study, we examined the time-dependent alteration of anti-diuretic hormone (ADH) concentrating on the water reabsorption system in hindlimb unloaded rats. Male Sprague-Dawley rats were hindlimb unloaded for 1 (HU1), 7(HU7), 14 days (HU14) or rested in the ground for 3 days after HU14 (HU14+3). The plasma ADH and angiotensin II level showed peak value at HU7, and the alterations were restored at HU14. However, several serum electrolytes (Na, K, Cl) were not changed regardless of HU period. In the immunohistochemical study, we examined that ADH and c-Fos immunoreactivities (IR) were maximized at HU7 in the paraventricular nucleus (PVN) and supraoptic nucleus (SON). Aquaporin 2 (AQP2) IR also was increased in the renal collecting duct for water re-absorption at HU7 showing a similar pattern with ADH. These results present a series of physiological ADH system alteration following to period of hindlimb unloading stimulus, indicating that ADH system is activated significantly at HU7. In addition, our results suggest that ADH system activation may be involved in anti-diuretic phenomenon in early spaceflight period. Furthermore, it is speculated that ADH system may require 14 days for adaptation to microgravity.
Published: 2011

239. Observation ofX(3872)→J/ψγand Search forX(3872)→ψ′γinBDecays

Author: Andrey Sokolov, J. H. Kang, E. Nakano, Y. Sakai, Jasvinder A. Singh, T. Aushev, A. M. Bakich, Z. Natkaniec, T. Ohshima, N. J. Joshi, E. Solovieva, R. Mussa, Y. Usov, N. Gabyshev, C. L. Lim, A. Ishikawa, Marko Petrič, K. Inami, H. J. Hyun, P. Smerkol, T. Kawasaki, T. Nozaki, C. W. Park, P. Križan, B.A. Shwartz, A. Vossen, K. Trabelsi, T. A. Shibata, O. Seon, H. O. Kim, Tariq Aziz, K. Adamczyk, H. Miyata, M. Bischofberger, Y. Hoshi, D. Matvienko, R. Mizuk, Y. Miyazaki, Y. S. Sohn, Yang Li, Y. Choi, M. Shapkin, M. Uchida, V.N. Zhilich, Ping Zhou, Vladimir Zhulanov, D. M. Asner, K. Hayasaka, Jung-Hyun Kim, H. Hayashii, T. Iijima, D. Liventsev, M. Röhrken, Samo Stanič, V. Gaur, Yoshinobu Unno, M. Nakao, G. S. Varner, K. Kinoshita, T. Iwashita, K. Miyabayashi, C. C. Zhang, J. Libby, C. Kiesling, O. Nitoh, S. McOnie, M. Watanabe, M. J. Lee, S. L. Olsen, M. Bračko, H. K. Park, Y. Yamashita, G. Tatishvili, R. Pestotnik, C. Ng, H. Nakazawa, T. Sumiyoshi, C. Z. Yuan, B. Golob, V. Bhardwaj, Y. B. Hsiung, K. Sakai, S.I. Eidelman, S. Okuno, Sang Hoon Lee, J. S. Lange, B. G. Cheon, T. Sanuki, G. B. Mohanty, Y. Teramoto, Bruce Yabsley, W. S. Hou, K. M. Williams, A. Chen, Rakesh Kumar, M. Iwabuchi, L. E. Piilonen, G. Pakhlova, Anze Zupanc, Yongsun Kim, S. Uno, C. Schwanda, T. Julius, Po-Hsun Chen, K. Cho, I. Adachi, J. B. Kim, D. Epifanov, R. Louvot, B. R. Ko, V.E. Shebalin, S. K. Kim, S. Uehara, J. Haba, K. Belous, S. Korpar, Jolanta Brodzicka, J. G. Shiu, J. Dalseno, Zhenyu Zhang, K. T. Kim, S. K. Choi, Yasuyuki Horii, A.E. Bondar, Z. Doležal, Nagao Kobayashi, H. Sahoo, T. Uglov, Y. Onuki, V.M. Aulchenko, E. L. Barberio, Y. Watanabe, M. J. Kim, M. Starič, T. Kumita, Y. Iwasaki, Y. J. Kwon, O. Schneider, A.S. Kuzmin, B. Bhuyan, T. E. Browder, S. Nishida, and X. L. Wang
Subjects: Physics, Nuclear physics, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, General Physics and Astronomy, 010306 general physics, 01 natural sciences, X(3872)
Abstract: We report a study of B→(J/ψγ)K and B→(ψ'γ)K decay modes using 772×10⁶ B B events collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We observe X(3872)→J/ψγ and report the first evidence for χ(c2)→J/ψγ in B→(X_{c cγ)K decays, while in a search for X(3872)→ψ'γ no significant signal is found. We measure the branching fractions, B(B(±)→X(3872)K(±))B(X(3872)→J/ψγ)=(1.78(-0.44)(+0.48)±0.12)×10(-6), B(B(±)→χ(c2)K(±))=(1.11(-0.34)(+0.36)±0.09)×10(-5), B(B(±)→X(3872)K(±))B(X(3872)→ψ'γ)
Published: 2011
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240. First observation of the P-wave spin-singlet bottomonium states hb(1P) and hb(2P)

Author: I, Adachi, H, Aihara, K, Arinstein, D M, Asner, T, Aushev, T, Aziz, A M, Bakich, E, Barberio, K, Belous, V, Bhardwaj, B, Bhuyan, A, Bondar, M, Bračko, J, Brodzicka, T E, Browder, P, Chang, A, Chen, P, Chen, B G, Cheon, K, Chilikin, R, Chistov, I-S, Cho, K, Cho, Y, Choi, J, Dalseno, M, Danilov, Z, Drásal, A, Drutskoy, S, Eidelman, D, Epifanov, S, Esen, J E, Fast, M, Feindt, V, Gaur, N, Gabyshev, A, Garmash, Y M, Goh, B, Golob, T, Hara, K, Hayasaka, H, Hayashii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, T, Iijima, A, Ishikawa, M, Iwabuchi, Y, Iwasaki, I, Jaegle, T, Julius, J H, Kang, N, Katayama, T, Kawasaki, H, Kichimi, H O, Kim, J B, Kim, K T, Kim, M J, Kim, Y J, Kim, K, Kinoshita, B R, Ko, N, Kobayashi, S, Koblitz, S, Korpar, P, Križan, T, Kuhr, T, Kumita, A, Kuzmin, Y-J, Kwon, J S, Lange, S-H, Lee, J, Li, J, Libby, C, Liu, D, Liventsev, R, Louvot, J, MacNaughton, D, Matvienko, S, McOnie, K, Miyabayashi, H, Miyata, Y, Miyazaki, R, Mizuk, G B, Mohanty, R, Mussa, Y, Nagasaka, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, S, Neubauer, S, Nishida, K, Nishimura, O, Nitoh, T, Nozaki, T, Ohshima, S, Okuno, S L, Olsen, Y, Onuki, P, Pakhlov, G, Pakhlova, H, Park, T K, Pedlar, R, Pestotnik, M, Petrič, L E, Piilonen, A, Poluektov, M, Ritter, M, Röhrken, S, Ryu, H, Sahoo, Y, Sakai, T, Sanuki, O, Schneider, C, Schwanda, A J, Schwartz, K, Senyo, O, Seon, M E, Sevior, M, Shapkin, V, Shebalin, T-A, Shibata, J-G, Shiu, B, Shwartz, F, Simon, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, S, Stanič, M, Starič, M, Sumihama, G, Tatishvili, Y, Teramoto, I, Tikhomirov, K, Trabelsi, M, Uchida, S, Uehara, T, Uglov, Y, Unno, S, Uno, S E, Vahsen, G, Varner, K E, Varvell, A, Vinokurova, C H, Wang, X L, Wang, Y, Watanabe, J, Wicht, E, Won, B D, Yabsley, Y, Yamashita, C Z, Yuan, V, Zhilich, and A, Zupanc
Subjects: Spectrum Analysis, Quantum Theory, Thermodynamics, Elementary Particles
Abstract: We report the first observations of the spin-singlet bottomonium states h(b)(1P) and h(b)(2P). The states are produced in the reaction e(+)e(-)→h(b)(nP)π(+)π(-) using a 121.4 fb(-1) data sample collected at energies near the Υ(5S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We determine M[h(b)(1P)]=(9898.2(-1.0-1.1)(+1.1+1.0)) MeV/c(2) and M[h(b)(2P)]=(10,259.8±0.6(-1.0)(+1.4)) MeV/c(2), which correspond to P-wave hyperfine splittings ΔM(HF)=(+1.7±1.5) and (+0.5(-1.2)(+1.6)) MeV/c(2), respectively. The significances of the h(b)(1P) and h(b)(2P) are 5.5σ and 11.2σ, respectively. We find that the production of the h(b)(1P) and h(b)(2P) is not suppressed relative to the production of the Υ(1S), Υ(2S), and Υ(3S).
Published: 2011

241. Observation of D+ → K(+)η(') and search for CP violation in D+ → π(+)η(') decays

Author: E, Won, B R, Ko, I, Adachi, H, Aihara, K, Arinstein, D M, Asner, T, Aushev, A M, Bakich, E, Barberio, A, Bay, V, Bhardwaj, B, Bhuyan, M, Bischofberger, A, Bondar, A, Bozek, M, Bračko, J, Brodzicka, T E, Browder, P, Chang, A, Chen, P, Chen, B G, Cheon, K, Chilikin, I-S, Cho, K, Cho, S-K, Choi, Y, Choi, J, Dalseno, M, Danilov, Z, Doležal, Z, Drásal, A, Drutskoy, S, Eidelman, J E, Fast, V, Gaur, N, Gabyshev, A, Garmash, Y M, Goh, B, Golob, J, Haba, T, Hara, K, Hayasaka, H, Hayashii, Y, Horii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, T, Iijima, K, Inami, A, Ishikawa, R, Itoh, M, Iwabuchi, Y, Iwasaki, T, Iwashita, N J, Joshi, T, Julius, J H, Kang, N, Katayama, T, Kawasaki, H, Kichimi, H J, Kim, H O, Kim, J B, Kim, J H, Kim, K T, Kim, M J, Kim, S K, Kim, Y J, Kim, K, Kinoshita, N, Kobayashi, S, Koblitz, P, Kodyš, S, Korpar, P, Križan, T, Kumita, A, Kuzmin, Y-J, Kwon, J S, Lange, M J, Lee, S-H, Lee, J, Li, Y, Li, J, Libby, C-L, Lim, C, Liu, Y, Liu, D, Liventsev, R, Louvot, S, McOnie, K, Miyabayashi, H, Miyata, Y, Miyazaki, R, Mizuk, G B, Mohanty, Y, Nagasaka, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, S, Neubauer, S, Nishida, K, Nishimura, O, Nitoh, S, Ogawa, T, Ohshima, S, Okuno, S L, Olsen, Y, Onuki, P, Pakhlov, G, Pakhlova, H, Park, H K, Park, K S, Park, R, Pestotnik, M, Petrič, L E, Piilonen, M, Röhrken, S, Ryu, H, Sahoo, K, Sakai, Y, Sakai, T, Sanuki, O, Schneider, C, Schwanda, A J, Schwartz, K, Senyo, O, Seon, M E, Sevior, C P, Shen, T-A, Shibata, J-G, Shiu, F, Simon, J B, Singh, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, S, Stanič, M, Starič, M, Sumihama, T, Sumiyoshi, S, Suzuki, G, Tatishvili, Y, Teramoto, K, Trabelsi, M, Uchida, S, Uehara, T, Uglov, Y, Unno, S, Uno, Y, Usov, S E, Vahsen, G, Varner, A, Vinokurova, C H, Wang, M-Z, Wang, P, Wang, M, Watanabe, Y, Watanabe, K M, Williams, B D, Yabsley, Y, Yamashita, M, Yamauchi, Z P, Zhang, V, Zhilich, V, Zhulanov, A, Zupanc, and O, Zyukova
Abstract: We report the first observation of the doubly Cabibbo-suppressed decays D(+)→K(+)η((')) using a 791 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The ratio of the branching fractions of doubly Cabibbo-suppressed relative to singly Cabibbo-suppressed D(+)→π(+)η((')) decays are B(D(+)→K(+)η)/B(D(+)→π(+)η)=(3.06±0.43±0.14)% and B(D(+)→K(+)η')/B(D(+)→π(+)η')=(3.77±0.39±0.10)%. From these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in D(+) decays, δ(TA), is (72±9)° or (288±9)°. We also report the most precise measurements of CP asymmetries to date: A(CP)(D(+)→π(+)η)=(+1.74±1.13±0.19)% and A(CP)(D(+)→π(+)η')=(-0.12±1.12±0.17)%.
Published: 2011

242. Observation of X(3872)→J/ψγ and search for X(3872)→ψ'γ in B decays

Author: V, Bhardwaj, K, Trabelsi, J B, Singh, S-K, Choi, S L, Olsen, I, Adachi, K, Adamczyk, D M, Asner, V, Aulchenko, T, Aushev, T, Aziz, A M, Bakich, E, Barberio, K, Belous, B, Bhuyan, M, Bischofberger, A, Bondar, M, Bračko, J, Brodzicka, T E, Browder, A, Chen, P, Chen, B G, Cheon, K, Cho, Y, Choi, J, Dalseno, Z, Doležal, S, Eidelman, D, Epifanov, V, Gaur, N, Gabyshev, B, Golob, J, Haba, K, Hayasaka, H, Hayashii, Y, Horii, Y, Hoshi, W-S, Hou, Y B, Hsiung, H J, Hyun, T, Iijima, K, Inami, A, Ishikawa, M, Iwabuchi, Y, Iwasaki, T, Iwashita, N J, Joshi, T, Julius, J H, Kang, T, Kawasaki, C, Kiesling, H O, Kim, J B, Kim, J H, Kim, K T, Kim, M J, Kim, S K, Kim, Y J, Kim, K, Kinoshita, B R, Ko, N, Kobayashi, S, Korpar, P, Križan, R, Kumar, T, Kumita, A, Kuzmin, Y-J, Kwon, J S, Lange, M J, Lee, S-H, Lee, Y, Li, J, Libby, C-L, Lim, D, Liventsev, R, Louvot, D, Matvienko, S, McOnie, K, Miyabayashi, H, Miyata, Y, Miyazaki, R, Mizuk, G B, Mohanty, R, Mussa, E, Nakano, M, Nakao, H, Nakazawa, Z, Natkaniec, C, Ng, S, Nishida, O, Nitoh, T, Nozaki, T, Ohshima, S, Okuno, Y, Onuki, G, Pakhlova, C W, Park, H K, Park, R, Pestotnik, M, Petrič, L E, Piilonen, M, Röhrken, H, Sahoo, K, Sakai, Y, Sakai, T, Sanuki, O, Schneider, C, Schwanda, O, Seon, M, Shapkin, V, Shebalin, T-A, Shibata, J-G, Shiu, B, Shwartz, P, Smerkol, Y-S, Sohn, A, Sokolov, E, Solovieva, S, Stanič, M, Starič, T, Sumiyoshi, G, Tatishvili, Y, Teramoto, M, Uchida, S, Uehara, T, Uglov, Y, Unno, S, Uno, Y, Usov, G, Varner, A, Vossen, X L, Wang, M, Watanabe, Y, Watanabe, K M, Williams, B D, Yabsley, Y, Yamashita, C Z, Yuan, C C, Zhang, Z P, Zhang, V, Zhilich, P, Zhou, V, Zhulanov, and A, Zupanc
Abstract: We report a study of B→(J/ψγ)K and B→(ψ'γ)K decay modes using 772×10⁶ B ̅B events collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We observe X(3872)→J/ψγ and report the first evidence for χ(c2)→J/ψγ in B→(X_{c ̅cγ)K decays, while in a search for X(3872)→ψ'γ no significant signal is found. We measure the branching fractions, B(B(±)→X(3872)K(±))B(X(3872)→J/ψγ)=(1.78(-0.44)(+0.48)±0.12)×10(-6), B(B(±)→χ(c2)K(±))=(1.11(-0.34)(+0.36)±0.09)×10(-5), B(B(±)→X(3872)K(±))B(X(3872)→ψ'γ)3.45×10⁶ (upper limit at 90% C.L.), and also provide upper limits for other searches.
Published: 2011

243. Control of trap density in channel layer for the higher stability of oxide thin film transistors under gate bias stress

Author: Y. K. Moon, W. S. Kim, K. T. Kim, D. S. Han, S. Y. Shin, J. W. Park, Jisoon Ihm, and Hyeonsik Cheong
Subjects: Materials science, business.industry, Annealing (metallurgy), Analytical chemistry, Oxide, Insulator (electricity), chemistry.chemical_compound, chemistry, Gate oxide, Thin-film transistor, Optoelectronics, Field-effect transistor, business, AND gate, Voltage
Abstract: In this study, we investigated turn‐on voltage (VON) stability of oxide‐based TFTs under constant voltage stress for the TFTs including intrinsic ZnO, Hf‐doped ZnO, and Hf‐Zn‐Sn‐O channel layer. Also, to verify the effects of interfacial trap density on the TFTs stability, we employed SiNX and SiO2/SiNX as gate insulator, respectively. We found that the low trap density of the TFTs, including the interfacial trap density between channel and gate insulator, and oxide semiconductor bulk trap density is intimately related to excellent gate bias and temperature stability.
Published: 2011
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244. Elastic-Plastic Response of Sintered Porous Iron Under Uniaxial Strain Cycling

Author: K. T. Kim and Y. S. Kwon
Subjects: Materials science, Mechanics of Materials, Mechanical Engineering, Constitutive equation, Hardening (metallurgy), General Materials Science, Elasticity (physics), Composite material, Plasticity, Condensed Matter Physics, Cycling, Porosity, Elastic plastic
Abstract: Elastic-plastic responses of porous iron under uniaxial strain cycling between two fixed values of strain are investigated. A special set of constitutive equations is formulated by including isotropic, kinematic and saturation hardening responses. The theoretical results from the constitutive equations are compared with experimental cyclic data for porous iron, with various porosities.
Published: 1993
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245. Hot Upsetting of Porous Alloy Steel Preforms

Author: Y. H. Cho and K. T. Kim
Subjects: Materials science, Strain (chemistry), Alloy steel, Metallurgy, technology, industry, and agriculture, Metals and Alloys, engineering.material, equipment and supplies, Condensed Matter Physics, Mechanics of Materials, Materials Chemistry, Ceramics and Composites, engineering, Porosity
Abstract: The thermoviscoplastic response and the densification behaviour of porous alloy steel preforms under hot upsetting conditions are investigated at various temperatures and strain rates. A higher den...
Published: 1993
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246. FABRICATION OF MULTIPLE HEIGHT MICROPROBES USING UV LITHOGRAHY ON TIMED-DEVELOPMENT-AND-THERMAL-REFLOWED PHOTORESIST

Author: Y.K. Yoon, G.-H. Kim, X. Cheng, H.C. Ahn, J.K. Kim, and K.-T. Kim
Subjects: Fabrication, Materials science, business.industry, Thermal, Optoelectronics, Photoresist, business
Published: 2010
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247. ENGINEERING PROPERTIES OF PERMEABLE POLYMER CONCRETE USING STONE DUST AND HEAVY CALCIUM CARBONATE

Author: K T Kim, Y J Song, J K Min, H J Jung, S W Kim, and C Y Sung
Subjects: chemistry.chemical_compound, Calcium carbonate, Materials science, chemistry, Polymer concrete, Composite material, Stone dust
Published: 2010
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248. An Analysis of Void Deformation Caused by Power Law Creep and Diffusion Enhanced by Mechanical Stress in HIP Process

Author: K. T. Kim and Y. S. Lee
Subjects: Stress (mechanics), Void (astronomy), Materials science, Deformation mechanism, Creep, Hot isostatic pressing, Vacancy defect, Forensic engineering, Diffusion creep, Composite material, Power law
Abstract: A dominant deformation mechanism in an isostatic pressure sintering process of a powder compact is known as power law creep. The deformation of a pore was predicted from the existing stress analysis based on power law creep assuming a hollow sphere and a hollow cylinder. The deformation at high temperature (T> 0.4 Tm) involves both power law creep and diffusion enhanced by mechanical stress. The analysis performed by previous investigators included only the deformation caused by power law creep. The analysis in this paper is considering for both the deformation caused by power law creep and diffusion in the final stage of the HIP process for a hollow sphere and hollow cylinder models. The contribution of the diffusion mechanism to the total densification is investigated. The experimental results published for CoO are compared with the analytical result for power law creep only and for power law creep and diffusion. The results show that the effect of diffusion on the total densification is insignificant for densities of the order of 80 percent of theoretical at low applied pressure, and for a small vacancy diffusion coefficient (Dv). However, the contribution of diffusion is increased in the high densification region (ρ>0.95), with high applied stress and high Dv. It is concluded that the diffusion mechanism enhances the densification and its rate in the final stage of HIP process.
Published: 1992
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249. Strain Hardening Response of Sintered Porous Iron Tubes With Various Initial Porosities Under Combined Tension and Torsion

Author: K. T. Kim and Y. S. Kwon
Subjects: Materials science, Mechanics of Materials, Mechanical Engineering, Constitutive equation, Metallurgy, Torsion (mechanics), General Materials Science, Work hardening, Strain hardening exponent, Composite material, Condensed Matter Physics, Porosity
Abstract: Elastic-plastic strain hardening responses of sintered porous iron are investigated. By using the yield function of Kim, two sets of constitutive equations are obtained from the constitutive theories by Kim and Suh and by Gurson. Theoretical predictions from these constitutive equations are compared with experimental data for sintered porous iron tubes with various initial porosities under combined tension and torsion.
Published: 1992
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250. Plasmonic nanoarrays made in porous alumina template

Author: K T Kim, Shobha Shukla, Yong-Kyu Yoon, and Paras N. Prasad
Subjects: Materials science, Template, Nanocomposite, Nanoporous, Infrared, Nanophotonics, Physics::Optics, Nanoparticle, Nanotechnology, Surface plasmon resonance, Plasmon
Abstract: We report a simple and facile method to produce plasmonic nanoarray in nanoporous alumina templates. Reflectance properties of the alumina template exhibits stop bands in the spectrum. Two dimensional arrays of Polymer-Gold nanocomposite support discrete Plasmon resonance modes at visible and infrared frequencies when illuminated with light at normal incidence.
Published: 2009
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