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7 results on '"D, Anipko"'

1. New search for τ→μγ and τ→eγ decays at Belle

Author

S. K. Kim, I. Bizjak, H. Miyake, F. Mandl, S. E. Lee, T. Gershon, S. L. Olsen, Z. P. Zhang, K. Hayasaka, O. Nitoh, K. Miyabayashi, J. Brodzicka, A. Chen, H. Hayashii, R. Chistov, T. Lesiak, R. Itoh, T. Matsumoto, C. C. Kuo, S. W. Lin, N. Gabyshev, H. Miyata, P. Krokovny, X. C. Tian, K. Abe, Y. Kozakai, A. Sokolov, Y. Yamashita, C. C. Wang, W. S. Hou, T. Sumiyoshi, A. Kuzmin, L. S. Peak, P. Pakhlov, H. Aihara, D. Liventsev, H. Stoeck, M. E. Sevior, A. Imoto, Y. Teramoto, H. Sahoo, Y. Iwasaki, S. Okuno, N. Soni, I. Tikhomirov, Y. Usov, K. Senyo, G. R. Moloney, A. Bay, T. Schietinger, A.J. Schwartz, J. Haba, J. B. Singh, B. G. Cheon, O. Schneider, Q. L. Xie, S. Hou, S. Stanič, Y. Miyazaki, H. Nakazawa, B. Golob, N. Satoyama, J. H. Kang, H. Ha, A. Ishikawa, K. Arinstein, D. Heffernan, M. Yamauchi, S. Villa, W. T. Chen, T. Hokuue, T. Mori, G. N. Taylor, Y. Chao, K. S. Park, S. Eidelman, M. Nakao, Y. Nagasaka, A. Poluektov, T. Tsukamoto, J. Dalseno, H. Ozaki, E. Barberio, T. Hara, K. Inami, Y. Watanabe, T. Kawasaki, H.K Park, A. Bozek, S. Nishida, K. Tamai, S. Fratina, N. Tamura, M. Hazumi, Z. Natkaniec, P. Križan, A. Go, V. Aulchenko, D. Anipko, K. Belous, A. Yamaguchi, Y. Onuki, S. Uno, Hiroyuki Kaji, M. Starič, T. Uglov, K. Ueno, Y. K. Choi, Y. Sakai, V. Zhulanov, M. Shapkin, R. Kulasiri, H. R. Khan, A. Zupanc, Y. J. Kim, U. Bitenc, L. E. Piilonen, P. Chang, I. Adachi, S. Ogawa, A. Bondar, Masayuki Tanaka, M. C. Chang, Y. Hoshi, A. Drutskoy, Y. J. Kwon, M. Iwasaki, B. D. Yabsley, Y. Choi, C. H. Wang, I. Bedny, S. Uehara, H. Kichimi, F. Takasaki, V. Zhilich, A. Vinokurova, M. Danilov, P. Urquijo, A. Somov, R. Seidl, T. Tsuboyama, D. Epifanov, M. Dash, R. Kumar, T. Iijima, A. M. Bakich, T. Ohshima, G. Varner, K. Ikado, H. Shibuya, B. Shwartz, Kazuhiko Hara, H. Kawai, Michael J. Lee, E. Won, R. Pestotnik, G. Pakhlova, and M. Bračko

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, KEKB, Electron–positron annihilation, Lepton number, Belle experiment, Lepton
Abstract

We report on a search for the lepton flavor violating τ−→μ−γ and τ−→e−γ decays based on 535 fb−1 of data accumulated at the Belle experiment. No signal is found and we set 90% confidence level upper limits on the branching ratios B(τ−→μ−γ)

Published
2008

2. A study of γγ→KS0KS0 production at energies from 2.4 to 4.0 GeV at Belle

Author

W.T. Chen, K. Abe, I. Adachi, H. Aihara, D. Anipko, V. Aulchenko, A.M. Bakich, E. Barberio, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, T.E. Browder, M.-C. Chang, P. Chang, Y. Chao, A. Chen, B.G. Cheon, R. Chistov, Y. Choi, Y.K. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, A. Go, H. Ha, M. Hazumi, D. Heffernan, T. Higuchi, T. Hokuue, Y. Hoshi, W.-S. Hou, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, H. Kaji, J.H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H.O. Kim, Y.J. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, R. Kumar, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, S.E. Lee, T. Lesiak, S.-W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, T. Medvedeva, H. Miyata, Y. Miyazaki, R. Mizuk, G.R. Moloney, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S.L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C.W. Park, R. Pestotnik, L.E. Piilonen, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schümann, K. Senyo, M.E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J.B. Singh, A. Sokolov, A. Somov, N. Soni, S. Stanič, M. Starič, H. Stoeck, S.Y. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, I. Tikhomirov, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, S. Villa, C.C. Wang, C.H. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B.D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C.C. Zhang, Z.P. Zhang, V. Zhilich, and A. Zupanc

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Angular range, Range (particle radiation), Meson, law.invention, Nuclear physics, KEKB, law, Center of mass, Collider, Positron annihilation
Abstract

KS 0 KS 0 production in two-photon collisions has been studied using a 397.6 fb-1 data sample collected with the Belle detector at the KEKB e+ e- collider. For the first time the cross sections are measured in the two-photon center-of-mass energy range between 2.4 GeV and 4.0 GeV and angular range | cos θ* | < 0.6. Combining the results with measurements of γ γ → K+ K- from Belle, we observe that the cross section ratio σ (KS 0 KS 0) / σ (K+ K-) decreases from ∼0.13 to ∼0.01 with increasing energy. Signals for the χc 0 and χc 2 charmonium states are also observed. © 2007 Elsevier B.V. All rights reserved.

Published
2007

3. Search for lepton flavor violating τ− decays into ℓ−η, ℓ−η′ and ℓ−π0

Author

Y. Miyazaki, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aziz, A.M. Bakich, E. Barberio, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, A. Bondar, M. Bračko, T.E. Browder, A. Chen, W.T. Chen, B.G. Cheon, Y. Choi, Y.K. Choi, J. Dalseno, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, A. Go, A. Gorišek, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W.-S. Hou, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, Y.J. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, R. Kumar, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, M.J. Lee, T. Lesiak, S.-W. Lin, F. Mandl, T. Matsumoto, H. Miyake, H. Miyata, T. Nagamine, Y. Nagasaka, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, L.S. Peak, R. Pestotnik, L.E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schümann, C. Schwanda, A.J. Schwartz, K. Senyo, M.E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J.B. Singh, A. Somov, N. Soni, S. Stanič, M. Starič, H. Stoeck, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, I. Tikhomirov, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, S. Villa, A. Vinokurova, C.H. Wang, M. Watanabe, Y. Watanabe, E. Won, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z.P. Zhang, V. Zhilich, V. Zhulanov, and A. Zupanc

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, KEKB, Pi, High Energy Physics::Experiment, Pseudoscalar meson, Lepton
Abstract

We have searched for lepton-flavor-violating $\tau$ decays with a pseudoscalar meson ($\eta$, $\eta'$ {and} $\pi^0$) using a data sample of 401 fb$^{-1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. No evidence for these decays is found and we set the following upper limits on the branching fractions: ${\cal{B}}(\tau^-\to e^-\eta) < 9.2\times 10^{-8}$, ${\cal{B}}(\tau^-\to \mu^-\eta) < 6.5\times 10^{-8}$, ${\cal{B}}(\tau^-\to e^-\eta') < 1.6\times 10^{-7}$, ${\cal{B}}(\tau^-\to \mu^-\eta') < 1.3\times 10^{-7}$, ${\cal{B}}(\tau^-\to e^-\pi^0) < 8.0\times 10^{-8}$ and ${\cal{B}}(\tau^-\to \mu^-\pi^0) < 1.2\times 10^{-7}$ at the 90% confidence level. These results improve our previously published upper limits by factors from 2.3 to 6.3.

Published
2007

4. A search for the rare leptonic decays B+→μ+νμ and B+→e+νe

Author

Andrey Sokolov, Y. Iwasaki, G. Leder, P. Krokovny, Y. J. Kwon, Y. Onuki, N. Tamura, J. H. Kang, O. Schneider, A. Zupanc, K. Tamai, K. Sumisawa, H. Stoeck, M. H. Tanaka, O. Nitoh, C. H. Wang, R. Seidl, Samo Stanič, K. Ikado, M. E. Sevior, S. U. Kataoka, S. Nishida, N. Soni, W. T. Chen, E. L. Barberio, D. Anipko, P. Chang, Phillip Urquijo, Hiroaki Aihara, Y. Yamashita, I. Bedny, I. Nakamura, H. Sahoo, J. Dalseno, M. C. Chang, Q. L. Xie, T. Uglov, Yoji Hasegawa, Y. Choi, E. Nakano, M. Starič, Zhenyu Zhang, T. Nagamine, Rakesh Kumar, Y. Sakai, A. Drutskoy, T. Mori, H. Miyake, H. R. Khan, A. Somov, N. Satoyama, A.S. Kuzmin, U. Bitenc, M. J. Lee, P. Pakhlov, Y. Watanabe, S. Uno, C. Schwanda, M. Bračko, H. Kichimi, S. K. Kim, T. Iijima, H. Miyata, H. Nakazawa, G. Gokhroo, S. R. Hou, S. Fratina, H. J. Kim, Kazuo Abe, T. Tsuboyama, S. Cole, Y. Hoshi, T. Lesiak, S. Okuno, A. Yamaguchi, Gobinda Majumder, E. Won, T. J. Gershon, S. Noguchi, Jasvinder A. Singh, S. W. Lin, H. Park, A. Bozek, T. Tsukamoto, A. M. Bakich, S. Ogawa, M. Z. Wang, K. Kinoshita, T. Sumiyoshi, T. Matsumoto, Z. Natkaniec, T. Ohshima, H. Shibuya, M. Iwasaki, V.N. Zhilich, Y. Miyazaki, K. Hayasaka, Y. Teramoto, Bruce Yabsley, J. Schümann, B. Shwartz, S. Eidelman, N. Gabyshev, T. Hokuue, M. Yamauchi, G. N. Taylor, J. S. Lange, L. E. Piilonen, T. Schietinger, Young-Il Choi, G. Pakhlova, X. C. Tian, T. E. Browder, A. Go, D. Heffernan, S. Uehara, J. Haba, C. C. Kuo, W. S. Hou, H. Ha, N. Katayama, H. Kawai, R. Chistov, A. Bondar, K. Inami, K. Belous, S. Korpar, Byung Gu Cheon, R. Mizuk, M. Nakao, I. Adachi, S. McOnie, M. Dash, C. C. Wang, S. Villa, K. Senyo, T. Kawasaki, D. Liventsev, I. Bizjak, G. S. Varner, R. Itoh, S. Suzuki, A. Ishikawa, T. Nozaki, F. Takasaki, P. Križan, Antonio Limosani, I. Tikhomirov, A. Chen, M. Shapkin, Robin Wedd, Y. J. Kim, H. Ozaki, and R. Pestotnik

Subjects
Charmed baryons, Physics, Nuclear and High Energy Physics, Particle physics, Web of science, Electron–positron annihilation
Abstract

Reference EPFL-ARTICLE-154485doi:10.1016/j.physletb.2007.01.068View record in Web of Science Record created on 2010-11-05, modified on 2017-05-12

Published
2007

5. First observation of the decay τ−→ϕK−ντ

Author

V. Aulchenko, T. Lesiak, M. Starič, J. B. Singh, A. Drutskoy, Y. Iwasaki, I. Bizjak, V. Sidorov, T. Matsumoto, D. Liventsev, R. Seidl, R. Mizuk, P. Kapusta, T. Tsukamoto, A. Bozek, J. Haba, T. Iijima, Y. J. Kwon, S. Korpar, K. Abe, M. E. Sevior, Y. Miyazaki, O. Tajima, O. Schneider, H. Aihara, T. Aushev, I. Nakamura, A. M. Bakich, T. Ohshima, S. Fratina, T. E. Browder, Rakesh Kumar, H. Miyata, R. Itoh, H. Kawai, L. S. Peak, E. Nakano, M. Nakao, L. E. Piilonen, C.-H. Wu, Kazuhiko Hara, Bruce Yabsley, T. Schietinger, T. Hokuue, A. Bondar, Y. B. Hsiung, B. Shwartz, R. Kulasiri, H. Ozaki, Y. Nagasaka, S. Villa, Phillip Urquijo, S. Okuno, A. Chen, G. Varner, H. Stoeck, K. Senyo, S. Uno, Y. Usov, K. Ueno, I. Bedny, K. Arinstein, K. Hayasaka, A. Kuzmin, S. Y. Suzuki, H. Hayashii, Gobinda Majumder, S. Ogawa, A. Poluektov, G. Leder, X. C. Tian, H. R. Khan, D. Epifanov, D. Heffernan, H. Miyake, A. Somov, M. Danilov, S. McOnie, K. F. Chen, W. Mitaroff, O. Nitoh, A. Zupanc, P. Krokovny, Masayoshi Y. Tanaka, H. Ha, W. T. Chen, S. Stanič, T. Gershon, H. Shibuya, S. Bahinipati, M. Bračko, F. Mandl, N. Tamura, Toshisuke Kawasaki, V. Zhilich, H. Palka, A. Yamaguchi, Y. J. Kim, S. W. Lin, E. L. Barberio, S. Uehara, H. Park, H. Kichimi, A. Matyja, K. Inami, Ichiro Adachi, T. Uglov, Y. Choi, G. N. Taylor, M. Hazumi, R. Chistov, James Mueller, S. Nishida, N. Soni, Y. Teramoto, Y. Yamashita, E. Won, S. U. Kataoka, S. Eidelman, N. Gabyshev, D. Anipko, W. S. Hou, Long Zhang, Y. Onuki, M. Barbero, Young-Il Choi, G. Gokhroo, P. Križan, A. J. Schwartz, Y. Sakai, A. Ishikawa, Y. Hoshi, C. W. Park, S. Hou, J. H. Kang, and J. Dalseno

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, Hadron, Symbol (formal), Belle experiment, Lepton
Abstract

We present the first observation of τ lepton decays to hadronic final states with a ϕ -meson. This analysis is based on 401 fb −1 of data accumulated at the Belle experiment. The branching fraction obtained is B ( τ − → ϕ K − ν τ ) = ( 4.05 ± 0.25 ± 0.26 ) × 10 −5 .

Published
2006

6. Search for lepton flavor violating τ− decays with a KS0 meson

Author

Y. Miyazaki, K. Abe, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aushev, A.M. Bakich, M. Barbero, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, T.E. Browder, A. Chen, W.T. Chen, R. Chistov, Y. Choi, Y.K. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, J. Dragic, S. Eidelman, D. Epifanov, N. Gabyshev, T. Gershon, A. Gorišek, H. Ha, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, J.H. Kang, P. Kapusta, H. Kawai, H.R. Khan, H. Kichimi, H.O. Kim, S. Korpar, P. Krokovny, R. Kumar, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, J. Lee, T. Lesiak, S.-W. Lin, F. Mandl, T. Matsumoto, S. McOnie, W. Mitaroff, H. Miyake, H. Miyata, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, Y. Onuki, H. Ozaki, H. Palka, H. Park, L.S. Peak, R. Pestotnik, L.E. Piilonen, A. Poluektov, Y. Sakai, T. Schietinger, O. Schneider, R. Seidl, K. Senyo, M.E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, V. Sidorov, J.B. Singh, A. Somov, N. Soni, S. Stanič, M. Starič, H. Stoeck, K. Sumisawa, T. Sumiyoshi, F. Takasaki, N. Tamura, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, S. Uno, P. Urquijo, Y. Usov, G. Varner, S. Villa, C.C. Wang, C.H. Wang, Y. Watanabe, E. Won, A. Yamaguchi, Y. Yamashita, M. Yamauchi, L.M. Zhang, and V. Zhilich

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, KEKB, Meson, Electron–positron annihilation, Supersymmetry, Flavor, Lepton
Abstract

We have searched for the lepton flavor violating decays τ- → l- KS 0 (l = e or μ), using a data sample of 281 fb-1 collected with the Belle detector at the KEKB e+ e- asymmetric-energy collider. No evidence for a signal was found in either of the decay modes, and we set the following upper limits for the branching fractions: B (τ- → e- KS 0) < 5.6 × 10-8 and B (τ- → μ- KS 0) < 4.9 × 10-8 at the 90% confidence level. These results improve the previously published limits set by the CLEO Collaboration by factors of 16 and 19, respectively. © 2006 Elsevier B.V. All rights reserved.

Published
2006

7. Natural cuts in search of New Physics phenomena. Example

Author

I. Ginzburg, D. Anipko, and Alexey Pak

Subjects
Physics, Nuclear and High Energy Physics, Phase space, Physics beyond the Standard Model, SIGNAL (programming language), Process (computing), Experimental data, Natural (music), Model parameters, Statistical physics, Instrumentation
Abstract

To estimate the parameters of New Physics in the future experiments, the experimental data should be compared to the cross-sections calculated in terms of some model. The values of the model parameters can then be extracted from the signal/background ratio (statistical significance, SS). It is shown that applying certain phase space cuts can sometimes improve the results. The ways of seeking for the ”natural” cuts in the process/model are discussed. Results for eγ→Wν→μνν are presented.

Published
2003

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