Author: "Teramoto A" / Publisher: american physical society (aps) - Searchworks@Jio Institute Digital Library Search Results

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881 results on '"Teramoto A"'

1. Kondo breakdown in the topological Kondo insulator SmB6 studied by point-contact Andreev reflection spectroscopy

Author: Shiga, Masanobu, primary, Teramoto, Tsubasa, additional, Harada, Takurou, additional, Takahashi, Takuya, additional, Iga, Fumitoshi, additional, and Kawae, Tatsuya, additional
Published: 2023
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2. Revised phase diagram of the high- Tc cuprate superconductor Pb-doped Bi2Sr2CaCu2O8+δ revealed by anisotropic transport measurements

Author: Keiichi Harada, Yuki Teramoto, Tomohiro Usui, Kenji Itaka, Takenori Fujii, Takashi Noji, Haruka Taniguchi, Michiaki Matsukawa, Hajime Ishikawa, Koichi Kindo, Daniel S. Dessau, and Takao Watanabe
Published: 2022

3. Revised phase diagram of the high- Tc cuprate superconductor Pb-doped Bi2Sr2CaCu2O8+δ revealed by anisotropic transport measurements

Author: Harada, Keiichi, primary, Teramoto, Yuki, additional, Usui, Tomohiro, additional, Itaka, Kenji, additional, Fujii, Takenori, additional, Noji, Takashi, additional, Taniguchi, Haruka, additional, Matsukawa, Michiaki, additional, Ishikawa, Hajime, additional, Kindo, Koichi, additional, Dessau, Daniel S., additional, and Watanabe, Takao, additional
Published: 2022
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4. Cross-Energy Couplings from Magnetosonic Waves to Electromagnetic Ion Cyclotron Waves through Cold Ion Heating inside the Plasmasphere

Author: Asamura, Kazushi, primary, Shoji, Masafumi, additional, Miyoshi, Yoshizumi, additional, Kasahara, Yoshiya, additional, Kasaba, Yasumasa, additional, Kumamoto, Atsushi, additional, Tsuchiya, Fuminori, additional, Matsuda, Shoya, additional, Matsuoka, Ayako, additional, Teramoto, Mariko, additional, Kazama, Yoichi, additional, and Shinohara, Iku, additional
Published: 2021
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5. Evidence for X(3872)→J/ψπ+π− Produced in Single-Tag Two-Photon Interactions

Author: R. Mussa, G.V. Russo, A. Ishikawa, W. S. Hou, Y. Seino, S. Jia, G. Inguglia, T. Matsuda, M. Nakao, C. MacQueen, B. Bhuyan, P. Chang, P. Križan, Somnath Choudhury, G. Bonvicini, Iki Adachi, A. Vinokurova, J. G. Shiu, V. Savinov, M. Campajola, S. Pardi, Doo Young Kim, H. Aihara, A. B. Kaliyar, O. Hartbrich, J. Kahn, C.-L. Hsu, J. Schueler, Y. Teramoto, Bruce Yabsley, D. Liventsev, B. H. Kim, J. Libby, D. M. Asner, K. Hayasaka, Rakesh Kumar, Peter Kodys, M. T. Prim, Takeo Kawasaki, V. Gaur, W. W. Jacobs, K. H. Kang, V.N. Zhilich, Y. Kato, W. Sutcliffe, A. Sangal, X. L. Wang, T. Uglov, V. Chekelian, G. B. Mohanty, S. Sandilya, T. Mori, G. Karyan, S. Cunliffe, K. Miyabayashi, G. Varner, M. Shapkin, Y. Usov, R. Van Tonder, M. C. Chang, A. K. Giri, M. Takizawa, R. Ayad, K. Cho, Jyoti Prakash Biswal, G. De Nardo, M. T. Hedges, T. K. Pedlar, N. K. Nisar, M. Iwasaki, Pavel Krokovny, K. Senyo, A. Garmash, M. Masuda, G. Schnell, T. Iijima, J. S. Lange, M. Starič, T. Bilka, Semen Eidelman, E. Nakano, Vladimir Zhulanov, R. Kroeger, M. Watanabe, B. G. Cheon, T. E. Browder, T. V. Dong, E. Won, R. Pestotnik, M. E. Sevior, I. S. Lee, T. D. Kimmel, A. Kuzmin, E.-J. Jang, P. Goldenzweig, S. Ogawa, E. Prencipe, L. K. Li, C. W. Joo, U. Tamponi, Shih-Chang Lee, T. Kuhr, Tao Luo, S.-J. Cho, K. Chilikin, K. Sumisawa, Daniel Greenwald, F. Tenchini, Y. Iwasaki, Y. J. Kwon, J. H. Yin, C. Kiesling, Seongbae Yang, H. Ono, C. Beleño, E. Waheed, N. Rout, V. Vorobyev, H. Miyata, T. J. Moon, Prafulla Kumar Behera, H. Hayashii, B. G. Fulsom, E. Wang, T. Podobnik, T. Sumiyoshi, H. Park, A. Bozek, D. Matvienko, M. Hernandez Villanueva, M. Merola, Y. Jin, C. H. Wang, S. Paul, H. Kichimi, S. Al Said, Martin Ritter, Tagir Aushev, V. Zhukova, Y. Onuki, Y. Unno, J. Bennett, Z. P. Zhang, H. Ye, M. Bračko, M. Z. Wang, K. Kinoshita, M. Nayak, T. Sanuki, S. Korpar, Saraju P. Mohanty, Seok Kim, D. Kotchetkov, T. Hara, M. Mrvar, Yongsun Kim, H. Atmacan, K. K. Joo, A. Chen, V. Babu, K. Lalwani, Dipak Kumar Sahoo, S. Uno, C. Schwanda, D. Cinabro, H. Nakazawa, Rocky Bala Garg, T. Ferber, Sadaharu Uehara, R. Kulasiri, Phillip Urquijo, Kohei Ogawa, A. Natochii, M. Sumihama, K. Inami, Y. B. Li, Y. Choi, V. Popov, L. Santelj, C. Hadjivasiliou, Y. Sakai, N. Gabyshev, D. Červenkov, G. Pakhlova, L. Li Gioi, P. L. Wang, K. Kumara, M. Uchida, Z. S. Stottler, V. Bhardwaj, Z. Liptak, R. Itoh, A. Rostomyan, Seokhee Park, F. Di Capua, P. Pakhlov, S. Nishida, Z. Natkaniec, P. Lewis, Leo Piilonen, X. P. Xu, K. Lieret, E. Solovieva, John Yelton, Z. Doležal, J. B. Singh, S. K. Choi, V. Shebalin, and S. Patra
Subjects: Physics, Particle physics, Meson, General Physics and Astronomy, Virtual particle, Electron, State (functional analysis), 01 natural sciences, law.invention, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), 010306 general physics, Collider, X(3872)
Abstract: We report the first evidence for $X(3872)$ production in two-photon interactions by tagging either the electron or the position in the final state, exploring the highly virtual photon region. The search is performed in $e^+e^- \rightarrow e^+e^-J/\psi\pi^+\pi^-$, using 825 fb$^{-1}$ of data collected by the Belle detector operated at the KEKB $e^+e^-$ collider. We observe three $X(3872)$ candidates with an expected background of $0.11\pm 0.10$ events, with a significance of 3.2$\sigma$. We obtain an estimated value for $\tilde{\Gamma}_{\gamma\gamma}{\cal B}(X(3872)\rightarrow J/\psi\pi^+\pi^-$) assuming the $Q^2$ dependence predicted by a $c\bar{c}$ meson model, where $-Q^2$ is the invariant mass-squared of the virtual photon. No $X(3915)\rightarrow J/\psi\pi^+\pi^-$ candidates are found.
Published: 2021

6. Electric field tunable anisotropic magnetoresistance effect in an epitaxial Co2FeSi/BaTiO3 interfacial multiferroic system

Author: T. Murata, D. Matsumi, K. Kudo, I. Azaceta, Demie Kepaptsoglou, T. Taniyama, Kohei Hamaya, Vlado K. Lazarov, Shinya Yamada, and Y. Teramoto
Subjects: Materials science, Physics and Astronomy (miscellaneous), Magnetoresistance, Exchange interaction, Fermi level, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Condensed Matter::Materials Science, Magnetic anisotropy, symbols.namesake, Crystallography, Domain wall (magnetism), Ferromagnetism, 0103 physical sciences, symbols, General Materials Science, Multiferroics, 010306 general physics, 0210 nano-technology, Electronic band structure
Abstract: We study magnetic and magnetotransport properties of an epitaxial interfacial multiferroic system consisting of a ferromagnetic Heusler-alloy ${\mathrm{Co}}_{2}\mathrm{Fe}\mathrm{Si}$ and a ferroelectric-oxide $\mathrm{Ba}\mathrm{Ti}{\mathrm{O}}_{3}$. $L{2}_{1}$-ordered ${\mathrm{Co}}_{2}\mathrm{Fe}\mathrm{Si}$ epilayers on $\mathrm{Ba}\mathrm{Ti}{\mathrm{O}}_{3}(001)$ show an in-plane uniaxial magnetic anisotropy with strong temperature dependence, induced by the presence of the magnetoelastic effect via the spin-orbit interaction at the ${\mathrm{Co}}_{2}\mathrm{Fe}\mathrm{Si}/\mathrm{Ba}\mathrm{Ti}{\mathrm{O}}_{3}(001)$ interface. In the ${\mathrm{Co}}_{2}\mathrm{Fe}\mathrm{Si}$ Hall-bar devices, the anisotropic magnetoresistance (AMR) hysteretic curves depending on in-plane magnetization reversal processes on the $a$ and $c$ domains of $\mathrm{Ba}\mathrm{Ti}{\mathrm{O}}_{3}(001)$ are clearly observed at room temperature. Notably, the magnitude of the AMR ratio (%) for ${\mathrm{Co}}_{2}\mathrm{Fe}\mathrm{Si}$ Hall-bar devices can be tuned through the $a\ensuremath{-}c$ domain wall motion of $\mathrm{Ba}\mathrm{Ti}{\mathrm{O}}_{3}(001)$ by applying electric fields. We propose that the tunable AMR effect is associated with the modulation of the spin-orbit interaction, exchange interaction, and/or the electronic band structure near the Fermi level by applying electric fields in the epitaxial ${\mathrm{Co}}_{2}\mathrm{Fe}\mathrm{Si}/\mathrm{Ba}\mathrm{Ti}{\mathrm{O}}_{3}(001)$ interfacial multiferroic system.
Published: 2021

7. Evidence for X(3872)→J/ψπ+π− Produced in Single-Tag Two-Photon Interactions

Author: Teramoto, Y., Uehara, S., Masuda, M., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Behera, P., Beleño, C., Bennett, J., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., De Nardo, G., Di Capua, F., Doležal, Z., Dong, T. V., Eidelman, S., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Greenwald, D., Hadjivasiliou, C., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hernandez Villanueva, M., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Kahn, J., Kaliyar, A. B., Kang, K. H., Karyan, G., Kato, Y., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, D. Y., Kim, S. H., Kim, Y.-K., Kimmel, T. D., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Lewis, P., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liptak, Z., Liventsev, D., Luo, T., MacQueen, C., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mohanty, G. B., Mohanty, S., Moon, T. J., Mori, T., Mrvar, M., Mussa, R., Nakano, E., Nakao, M., Nakazawa, H., Natkaniec, Z., Natochii, A., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Shebalin, V., Shiu, J.-G., Singh, J. B., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Waheed, E., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Won, E., Xu, X., Yabsley, B. D., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: ddc
Published: 2020

8. Search for B0 decays to invisible final states ( +γ ) at Belle

Author: K. Arinstein, J. Libby, Y. Chao, S. Nishida, A.E. Bondar, Y. Teramoto, C. Ng, K. Senyo, K. Miyabayashi, V. Chekelian, Z. P. Zhang, V. Gaur, M. Shapkin, A.L. Sibidanov, Y. Choi, Z. Doležal, H. O. Kim, S. Uno, Sunmin Ryu, Norihito Muramatsu, E. Nakano, B.A. Shwartz, E. Solovieva, K. T. Kim, H. Miyata, M. Bischofberger, Toru Iijima, T. E. Browder, M. C. Chang, T. Iwashita, G. Varner, Y. Hoshi, R. Gillard, D. M. Asner, G. Tatishvili, Hitoshi Yamamoto, P. Vanhoefer, Peter Kodys, M. Röhrken, K. Chilikin, J. B. Singh, K. Hayasaka, S. E. Vahsen, Jochen Dingfelder, A. Ishikawa, M. Nakao, H. Farhat, C. W. Park, Vladimir Zhulanov, E. Won, H. K. Park, J. Dalseno, Leo Piilonen, M. Iwabuchi, M. E. Sevior, A. Kuzmin, Y. Iwasaki, V. Zhilich, W. S. Hou, O. Schneider, R. Louvot, Frank Simon, H. Park, A. Bozek, Phillip Urquijo, G. B. Mohanty, S. Okuno, Peter Kvasnicka, R. Pestotnik, T. Kawasaki, H. J. Kim, M. Ritter, Y. Usov, T. A. Shibata, V. Vorobyev, J. Li, G. Bonvicini, S. H. Lee, I. Adachi, Z. Drásal, T. Kuhr, S. Esen, B. Bhuyan, Y. S. Sohn, Yasuyuki Horii, C. L. Hsu, M. Uchida, G. Pakhlova, A. M. Bakich, S. Sandilya, D. Liventsev, A. J. Schwartz, Marko Petrič, Hiroaki Aihara, Yang Li, Y. Sakai, T. Julius, Po-Hsun Chen, Yongsun Kim, C. Schwanda, H. J. Hyun, P. Smerkol, H. Sahoo, T. Hara, K. Cho, T. Uglov, J. Haba, R. Itoh, P. Chang, P. Wang, Z. Q. Liu, J. H. Kang, D. Epifanov, Pavel Krokovny, B. G. Cheon, Jung-Hyun Kim, Y. Miyazaki, I. S. Cho, Y. M. Goh, T. Sumiyoshi, James E. Fast, T. K. Pedlar, A. Moll, S. L. Olsen, Samo Korpar, K. M. Williams, T. Sanuki, Semen Eidelman, H. Kichimi, A. Chen, Y. Unno, K. Trabelsi, K. Inami, C. P. Shen, M. Sumihama, B. R. Ko, O. Nitoh, H. Hayashii, Y. B. Hsiung, D. Dutta, M. Watanabe, M. Starič, Y. Watanabe, J. G. Shiu, Tagir Aushev, Y. Yamashita, V.M. Aulchenko, Yueh-Feng Liu, Z. Natkaniec, T. Ohshima, N. Gabyshev, C. Kiesling, M. Bračko, J. B. Kim, Samo Stanič, and Y. J. Kwon
Subjects: Physics, Particle physics, Photon, 010308 nuclear & particles physics, Electron–positron annihilation, Resonance, Photon energy, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: We report searches for B0→invisible and B0→invisible+γ decays, where the energy of the photon is required to be larger than 0.5 GeV. These results are obtained from a 711 fb-1 data sample that contains 772×106BB¯ pairs and was collected near the ϒ(4S) resonance with the Belle detector at the KEKB e+e- collider. We observe no significant signal for either decay and set upper limits on their branching fractions at 90% confidence level of B(B0→invisible)
Published: 2020

9. Electric field tunable anisotropic magnetoresistance effect in an epitaxial Co2FeSi/BaTiO3 interfacial multiferroic system

Author: Yamada, S., primary, Teramoto, Y., additional, Matsumi, D., additional, Kepaptsoglou, D., additional, Azaceta, I., additional, Murata, T., additional, Kudo, K., additional, Lazarov, V. K., additional, Taniyama, T., additional, and Hamaya, K., additional
Published: 2021
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10. Study of KS0 pair production in single-tag two-photon collisions

Author: Masuda, M., Uehara, S., Watanabe, Y., Adachi, I., Ahn, J. K., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Berger, M., Bhardwaj, V., Bhuyan, B., Biswal, J., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Červenkov, D., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Czank, T., Dash, N., Di Carlo, S., Doležal, Z., Drásal, Z., Dutta, D., Eidelman, S., Epifanov, D., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Giri, A., Goldenzweig, P., Guido, E., Haba, J., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W.-S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jin, Y., Joo, K. K., Julius, T., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, K. T., Kim, S. H., Kodyš, P., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kuzmin, A., Kwon, Y.-J., Lee, I. S., Lee, S. C., Li, L. K., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lubej, M., Luo, T., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, H. K., Mori, T., Mussa, R., Nakao, M., Nakazawa, H., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Park, H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Seidl, R., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shibata, T.-A., Shimizu, N., Shiu, J.-G., Shwartz, B., Sokolov, A., Solovieva, E., Starič, M., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Teramoto, Y., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Van Hulse, C., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, B., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Widmann, E., Won, E., Ye, H., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., Zupanc, A., and Belle Collaboration
Subjects: High Energy Physics::Experiment
Abstract: We report a measurement of the cross section for KS0 pair production in single-tag two-photon collisions, γ∗γ→KS0KS0, for Q² up to 30 GeV², where Q² is the negative of the invariant mass squared of the tagged photon. The measurement covers the kinematic range 1.0 GeV
Published: 2018

11. Highly intensified emission of laser-accelerated electrons from a foil target through an additional rear laser plasma

Author: Inoue, Shunsuke, primary, Nakamiya, Yoshihide, additional, Teramoto, Kensuke, additional, Hashida, Masaki, additional, and Sakabe, Shuji, additional
Published: 2018
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12. Induction of subterahertz surface waves on a metal wire by intense laser interaction with a foil

Author: Teramoto, Kensuke, primary, Inoue, Shunsuke, additional, Tokita, Shigeki, additional, Yasuhara, Ryo, additional, Nakamiya, Yoshihide, additional, Nagashima, Takeshi, additional, Mori, Kazuaki, additional, Hashida, Masaki, additional, and Sakabe, Shuji, additional
Published: 2018
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13. Origin of positive out-of-plane magnetoconductivity in overdoped Bi1.6Pb0.4Sr2CaCu1.96Fe0.04O8+δ

Author: Itsuhiro Kakeya, Takao Watanabe, Yuki Teramoto, Tomohiro Usui, Koichi Kindo, Akihiro Kondo, Mihaly M. Dobroka, Shintaro Adachi, and Shojiro Kimura
Subjects: Physics, Superconductivity, Condensed matter physics, Transition temperature, 01 natural sciences, 010305 fluids & plasmas, Magnetic field, Electrical resistivity and conductivity, Condensed Matter::Superconductivity, 0103 physical sciences, Cuprate, 010306 general physics, Pseudogap, Single crystal, Phase diagram
Abstract: To elucidate the pseudogap phase diagram including the overdoped state of high transition temperature (high-${T}_{c}$) cuprates, we must understand the origin of the positive out-of-plane magnetoconductivity observed in these compounds. For this purpose, the out-of-plane resistivity ${\ensuremath{\rho}}_{c}(T,H)$ of an overdoped ${\mathrm{Bi}}_{1.6}{\mathrm{Pb}}_{0.4}{\mathrm{Sr}}_{2}{\mathrm{CaCu}}_{1.96}{\mathrm{Fe}}_{0.04}{\mathrm{O}}_{8+\ensuremath{\delta}}$ (Bi-2212) single crystal is measured under pulsed magnetic fields up to 60 T. We show that the superconducting density-of-states depletion effect, in addition to the pseudogap effect, clearly appears below the superconducting fluctuation regime, and the contribution becomes dominant in the superconducting state.
Published: 2016

14. Energy Scan of thee+e−→hb(nP)π+π−(n=1, 2) Cross Sections and Evidence forϒ(11020)Decays into Charged Bottomoniumlike States

Author: A. Drutskoy, M. Niiyama, T. Matsuda, S. Uno, S. L. Olsen, K. Trabelsi, G. Bonvicini, J. Libby, C. H. Li, S. H. Kim, P. Krokovny, C. L. Hsu, C. Pulvermacher, K. H. Kang, Y. Watanabe, T. Aushev, Marko Petrič, A. Zupanc, K. Senyo, S. Nishida, Y. Seino, J. G. Shiu, B.A. Shwartz, T. Sumiyoshi, J. Dalseno, N. K. Nisar, Peter Kodys, T. Ferber, Martin Ritter, P. Katrenko, Y. Yamashita, M. Uchida, T. Sanuki, D. Matvienko, Phillip Urquijo, E. Nakano, D. Liventsev, V. Chobanova, D. Cinabro, T. K. Pedlar, A. Moll, Vladimir Zhulanov, G. Schnell, B. Pal, Z. P. Zhang, A. Garmash, K. Negishi, H. Li, M. E. Sevior, M. Lubej, Y. Onuki, L. E. Piilonen, P. Goldenzweig, D. M. Asner, G. Inguglia, C. Van Hulse, V. Zhukova, D. Semmler, G. S. Varner, J. Stypula, T. Luo, M. Masuda, Daniel Greenwald, T. Schlüter, R. Mizuk, C. Z. Yuan, D. A. Epifanov, T. A. Shibata, H. Miyata, Prafulla Kumar Behera, I. Tikhomirov, P. Wang, S. Okuno, V.M. Aulchenko, T. Julius, T. Kuhr, S.I. Eidelman, B. G. Fulsom, G. B. Mohanty, B. G. Cheon, K. Hayasaka, E. L. Barberio, Y. Teramoto, H. Atmacan, Y. Unno, Ruslan Chistov, Yongsun Kim, Jyoti Prakash Biswal, R. Ayad, S. Korpar, D. Y. Kim, C. Schwanda, P. Pakhlov, V. Gaur, I. Adachi, J. Yamaoka, J. B. Kim, H. J. Kim, E. Solovieva, A.E. Bondar, M. Takizawa, G. Pakhlova, A. Kuzmin, Kiyoshi Tanida, T. Hara, H. Aihara, N. Dash, Y. Usov, S. Ogawa, V. Bhardwaj, D. Kotchetkov, K. M. Williams, A. Chen, John Yelton, Z. Doležal, X. L. Wang, H. Park, Mikhail Danilov, A. Bozek, K. T. Kim, Tara Nanut, R. Gillard, T. Uglov, L. Li Gioi, S. K. Choi, O. Seon, Frank Simon, Y. Choi, K. J. Nath, R. Pestotnik, C. H. Wang, B. Bhuyan, T. E. Browder, Y. Sakai, Y. M. Goh, A. Bobrov, V.E. Shebalin, H. Hayashii, V. Savinov, Soumen Paul, Liangbin Li, V. Chekelian, K. Chilikin, K. Inami, M. Z. Wang, K. Kinoshita, U. Tamponi, V.N. Zhilich, I. Jaegle, S. Sandilya, K. Miyabayashi, I. Badhrees, M. J. Kim, M. Bračko, M. Starič, Y. Iwasaki, Y. J. Kwon, O. Schneider, B. Golob, A. M. Bakich, J. S. Lange, E. Won, D. Červenkov, W. S. Hou, V. Vorobyev, A. Ishikawa, M. Nakao, and C. W. Park
Subjects: Physics, KEKB, Isovector, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Pi, General Physics and Astronomy, Intermediate state, Atomic physics, 010306 general physics, 01 natural sciences
Abstract: Using data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider, we measure the energy dependence of the e(+)e(-) -> h(b)(nP)pi(+)pi(-) (n = 1, 2) cross sections from thresholds up to 11.02 GeV. We find clear gamma(10860) and gamma(11020) peaks with little or no continuum contribution. We study the resonant substructure of the gamma(11020) -> h(b)(nP)pi(+)pi(_) transitions and find evidence that they proceed entirely via the intermediate isovector states Z(b)(10610) and Z(b)(10650). The relative fraction of these states is loosely constrained by the current data: The hypothesis that only Z(b)(10610) is produced is excluded at the level of 3.3 standard deviations, while the hypothesis that only Z(b)(10650) is produced is not excluded at a significant level.
Published: 2016

15. Search for a massive invisible particleX0inB+→e+X0andB+→μ+X0decays

Author: Yuki Sato, T. E. Browder, C. Pulvermacher, Mikhail Danilov, K. Chilikin, Saraju P. Mohanty, T. A. Shibata, H. Miyata, K. Inami, Prafulla Kumar Behera, V. Babu, E. Nakano, S.I. Eidelman, R. Mizuk, N. Dash, K. Hayasaka, S. Uno, S. Nishida, D. Cinabro, V. Bhardwaj, S. Sandilya, C. Van Hulse, L. E. Piilonen, M. Z. Wang, K. Kinoshita, U. Tamponi, Toru Iijima, A. Zupanc, G. B. Mohanty, Liangbin Li, A. Rostomyan, Ruslan Chistov, V. Chekelian, T. Schlüter, Dipanwita Dutta, G. Inguglia, K. Trabelsi, H. Ye, Y. Yusa, Andrey Sokolov, Y. Watanabe, S. Yashchenko, C. P. Shen, G. Bonvicini, J. Rauch, B. Pal, P. Križan, Hiroaki Aihara, T. Julius, P. Pakhlov, A. Moll, J. Stypula, James E. Fast, Y. Yook, T. Aushev, A. M. Bakich, T. Ferber, D. Y. Kim, M. Nayak, I. Badhrees, H. Hayashii, R. Mussa, Yang Li, H. B. Jeon, B.A. Shwartz, Y. Choi, I. Jaegle, S. H. Kim, P. Krokovny, K. H. Kang, K. Cho, A. Ishikawa, H. Park, K. J. Nath, A. Bozek, S. Okuno, N. K. Nisar, T. Hara, L. Santelj, J. G. Shiu, C. W. Park, I. Adachi, G. Pakhlova, Marko Petrič, Phillip Urquijo, Z. Doležal, N. Gabyshev, D. Červenkov, T. Sumiyoshi, D. Liventsev, Vladimir Zhulanov, O. Seon, Frank Simon, M. E. Sevior, I. S. Lee, Martin Ritter, J. B. Kim, P. Goldenzweig, Y. M. Goh, K. Senyo, O. Grzymkowska, C. H. Wang, P. Lukin, E. L. Barberio, T. Sanuki, D. Matvienko, J. Dalseno, Y. Teramoto, G. Schnell, V.E. Shebalin, D. M. Asner, T. K. Pedlar, Y. Sakai, E. Kato, Samo Stanič, L. Li Gioi, A. Garmash, J. Libby, M. Lubej, C. H. Li, A. Chen, C. S. Park, D. Semmler, M. Bračko, J. Yamaoka, B. G. Cheon, Jyoti Prakash Biswal, Y. Seino, V. Gaur, M. Nakao, K. T. Kim, R. Gillard, S. Korpar, S. Ogawa, Christoph Schwanda, Z. P. Zhang, T. Uglov, Kevin Varvell, K. Negishi, Y. Usov, H. K. Moon, Sunmin Ryu, E. Won, P. Vanhoefer, W. S. Hou, M. V. Purohit, M. Heck, M. Uchida, V. Chobanova, G. S. Varner, R. Itoh, P. Wang, M. N. Wagner, B. G. Fulsom, V.N. Zhilich, K. Miyabayashi, A. J. Schwartz, H. Farhat, Peter Kodys, P. Katrenko, M. J. Kim, M. Starič, Y. Iwasaki, Y. J. Kwon, O. Schneider, A.S. Kuzmin, Yoshinobu Unno, and M. Masuda
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Hadron, Rest frame, 01 natural sciences, Resonance (particle physics), law.invention, Momentum, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics, Collider, Lepton
Abstract: We present a search for a non-Standard-Model invisible particle X-0 in the mass range 0.1-1.8 GeV/c(2) in B+ -> e(+)X(0) and B+ -> mu X-+(0) decays. The results are obtained from a 711 fb(-1) data sample that corresponds to 772 x 10(6) B (B) over bar pairs, collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. One B meson is fully reconstructed in a hadronic mode to determine the momentum of the lepton of the signal decay in the rest frame of the recoiling partner B meson. We find no evidence of a signal and set upper limits on the order of 10(-6).
Published: 2016

16. First Observation of the Doubly Cabibbo-Suppressed Decay of a Charmed Baryon:Λc+→pK+π−

Author: R. Mizuk, S. K. Kim, M. Masuda, L. E. Piilonen, Kevin Varvell, Sunmin Ryu, Y. Unno, E. Won, P. L. Wang, R. Mussa, H. B. Jeon, H. Aihara, P. Hamer, Iki Adachi, J. B. Kim, D. Y. Kim, Y. Usov, G. Pakhlova, G. B. Mohanty, H. Farhat, P. Vanhoefer, A. Ishikawa, M. Nakao, V. Babu, M. Z. Wang, Y. Yusa, K. Kinoshita, U. Tamponi, T. Aushev, N. K. Nisar, M. Uchida, V. Chobanova, C. W. Park, P. Križan, S. Yashchenko, G. Bonvicini, C. H. Wang, Z. P. Zhang, T. Julius, Peter Kodys, A. Vinokurova, C. Kiesling, W. W. Jacobs, P. Katrenko, T. Ferber, Y. S. Sohn, W. S. Hou, V.N. Zhilich, R. Chistov, H. Ye, K. M. Williams, J. G. Shiu, G. Schnell, T. Iijima, Nagao Kobayashi, J. Dalseno, A. Chen, Marko Petrič, S. H. Kim, P. Krokovny, K. H. Kang, K. Cho, V.E. Shebalin, Seongbae Yang, A. Vossen, M. Bračko, H. Park, G. S. Varner, Y. Iwasaki, Y. J. Kwon, A. Bozek, L. Li Gioi, A. Garmash, Daniel Greenwald, K. Negishi, T. Kuhr, J. Rauch, K. Miyabayashi, T. Sumiyoshi, H. Sahoo, I. Badhrees, Phillip Urquijo, Yang Li, Z. Drásal, R. Itoh, O. Schneider, Tara Nanut, D. Matvienko, Martin Ritter, O. Seon, Frank Simon, Y. Choi, S. Sandilya, Jyoti Prakash Biswal, K. J. Nath, T. Sanuki, A. Rostomyan, A. M. Bakich, T. Uglov, M. N. Wagner, D. M. Asner, T. K. Pedlar, K. T. Kim, B. G. Fulsom, B. Bhuyan, A. Moll, Yuki Sato, R. Gillard, K. Senyo, V. Trusov, Y. Watanabe, K. Trabelsi, Y. Sakai, V. Gaur, A. Zupanc, Y. M. Goh, N. Gabyshev, D. Červenkov, H. K. Moon, H. Hayashii, J. S. Lange, A. J. Schwartz, E. Nakano, J. Yamaoka, V. Savinov, M. Danilov, B. Pal, Luka Santelj, M. Nayak, B. H. Kim, B. G. Cheon, M. J. Kim, J. Stypula, E. Kato, K. Chilikin, H. J. Kim, B.A. Shwartz, A. Kuzmin, C. Z. Yuan, Ihn Sik Seong, S. Nishida, T. E. Browder, M. Starič, Liangbin Li, M. Takizawa, Kiyoshi Tanida, Samo Stanič, I. Jaegle, T. Schlüter, Dipanwita Dutta, S. Korpar, V. Chekelian, S. Ogawa, K. K. Joo, R. Pestotnik, T. Hara, D. Liventsev, John Yelton, K. Inami, Z. Doležal, Vladimir Zhulanov, X. L. Wang, M. Sumihama, V.M. Aulchenko, E. L. Barberio, Yongsun Kim, S. Uno, C. Schwanda, Andrey Sokolov, H. Li, M. Niiyama, S. L. Olsen, J. Grygier, T. A. Shibata, H. Miyata, S.I. Eidelman, K. Hayasaka, James E. Fast, M. E. Sevior, I. S. Lee, C. Pulvermacher, P. Goldenzweig, D. Cinabro, J. Haba, M. Lubej, G. Inguglia, N. Dash, V. Bhardwaj, J. Libby, C. H. Li, Y. Seino, S. Okuno, and Y. Teramoto
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, General Physics and Astronomy, Lambda, 01 natural sciences, law.invention, Nuclear physics, Baryon, KEKB, law, 0103 physical sciences, Pi, High Energy Physics::Experiment, 010306 general physics, Collider
Abstract: We report the first observation of the decay Lambda(+)(c) -> pK(+)pi(-) using a 980 fb(-1) data sample collected by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. This is the first observation of a doubly Cabibbo-suppressed decay of a charmed baryon. We measure the branching ratio of this decay with respect to its Cabibbo-favored counterpart to be B(Lambda(+)(c) -> pK(+)pi(-))/B(Lambda(+)(c) -> pK(-)pi(+)) = (2.35 +/- 0.27 +/- 0.21) x 10(-3), where the uncertainties are statistical and systematic, respectively.
Published: 2016

17. Search for the decayB0→ϕγ

Author: T. Nanut, T. A. Shibata, H. Miyata, Prafulla Kumar Behera, Y. Sakai, S. Ogawa, B. Bhuyan, T. Aushev, S.I. Eidelman, T. Uglov, Yuki Sato, M. Sumihama, T. E. Browder, T. Matsuda, I. Adachi, K. Hayasaka, M. Takizawa, T. Ferber, A. Bobrov, A. Zupanc, V. Savinov, Martin Ritter, Z. Doležal, D. Cinabro, T. Sanuki, M. Masuda, J. B. Kim, T. Iijima, L. Pesántez, E. Solovieva, S. Nishida, L. E. Piilonen, H. B. Jeon, H. Farhat, H. Sahoo, S. H. Kim, P. Krokovny, Y. Iwasaki, N. Dash, B.A. Shwartz, Liangbin Li, A. Ishikawa, Marko Petrič, A. Rostomyan, A. Moll, M. Watanabe, G. Schnell, T. Kuhr, G. Inguglia, V. Bhardwaj, V. Chekelian, K. H. Kang, K. Cho, S. Yashchenko, V.E. Shebalin, C. W. Park, W. S. Hou, P. Križan, Z. P. Zhang, B. G. Cheon, B. Pal, Tsuyoshi Horiguchi, T. Julius, O. Schneider, N. Taniguchi, Peter Kodys, W. W. Jacobs, M. Z. Wang, K. Kinoshita, K. T. Kim, R. Mizuk, S. Al Said, V. Vorobyev, D. Matvienko, M. E. Sevior, I. S. Lee, J. Haba, T. Schlüter, S. Wehle, R. Gillard, P. Goldenzweig, T. K. Pedlar, V.N. Zhilich, Yongsun Kim, Ruslan Chistov, W. Ostrowicz, K. Trabelsi, S. Sandilya, Samo Stanič, Hiroaki Aihara, J. Stypula, S. Uno, D. M. Asner, C. Schwanda, Z. King, C. P. Shen, S. Korpar, K. Negishi, Jyoti Prakash Biswal, Y. Yook, C. Z. Yuan, Y. Watanabe, H. Li, C. H. Wang, J. G. Shiu, B. Golob, V. Gaur, J. Libby, C. H. Li, Phillip Urquijo, J. Yamaoka, M. Nakao, K. Miyabayashi, R. Glattauer, C. L. Hsu, Sunmin Ryu, C. Kiesling, Yoshinobu Unno, K. K. Joo, E. Won, C. Pulvermacher, M. Starič, H. Atmacan, Y. Seino, J. F. Strube, T. Kumita, P. Vanhoefer, H. Hayashii, Kevin Varvell, T. Kawasaki, J. Rauch, S. Okuno, R. Ayad, A. M. Bakich, Frank Simon, K. Chilikin, M. Uchida, K. Inami, V. Chobanova, D. Kotchetkov, Y. Usov, N. Gabyshev, D. Červenkov, Y. Teramoto, G. S. Varner, T. Luo, R. Itoh, H. Nakazawa, P. Wang, B. G. Fulsom, D. Y. Kim, A. J. Schwartz, H. J. Kim, K. Senyo, Dipanwita Dutta, R. Pestotnik, K. M. Williams, L. Li Gioi, A. Garmash, A. Bozek, Yang Li, Y. Choi, K. J. Nath, T. Hara, L. Santelj, Y. M. Goh, J. Dalseno, Soumen Paul, E. Kato, and G. B. Mohanty
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Resonance, Astrophysics, 01 natural sciences, 3. Good health, law.invention, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider, Bar (unit)
Abstract: We have searched for the decay B-0 -> phi gamma sing the full Belle data set of 772 x 10(6) B (B) over bar pairs collected at the gamma(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. No signal is observed, and we set an upper limit on the branching fraction of B(B-0 -> phi gamma) < 1.0 x 10(-7) at the 90% confidence level. This is the most stringent limit on this decay mode to date.
Published: 2016

18. Observation ofZb(10610)andZb(10650)Decaying toBMesons

Author: Tariq Aziz, S. Uno, Y. Choi, James E. Fast, G. Bonvicini, J. Libby, C. H. Li, Y. Yook, S. Eidelman, Y. Sakai, R. Mizuk, Y. M. Goh, A. Kuzmin, S. Sandilya, G. Schnell, S. H. Kim, P. Krokovny, T. E. Browder, Yongsun Kim, P. Pakhlov, A. Zupanc, P. Lukin, V. Babu, K. H. Kang, K. Cho, N. Dash, E. Nakano, T. Aushev, Y. Seino, T. Hara, T. Mori, I. Jaegle, H. Park, A. Bozek, R. Ayad, B. Pal, T. Ferber, T. Kuhr, K. Chilikin, A. M. Bakich, L. E. Piilonen, Hiroaki Aihara, C. Van Hulse, E. Kato, C. Z. Yuan, G. Pakhlova, V.E. Shebalin, D. Liventsev, Vladimir Zhulanov, T. A. Shibata, H. Miyata, Prafulla Kumar Behera, V. Bhardwaj, T. K. Pedlar, B. Bhuyan, A. Moll, Dipanwita Dutta, E. Ribežl, N. Gabyshev, D. Červenkov, U. Tamponi, S. Yashchenko, D. Y. Kim, A. Abdesselam, M. E. Sevior, I. S. Lee, P. Goldenzweig, M. J. Kim, V. Gaur, Y. Teramoto, B. G. Cheon, R. Pestotnik, L. Li Gioi, V. Savinov, M. Danilov, C. Pulvermacher, A. Garmash, D. Semmler, G. B. Mohanty, R. Mussa, A. Ishikawa, T. Julius, P. L. Wang, Meng Wang, Y. Watanabe, D. Joffe, C. H. Wang, S. Nishida, M. Nakao, P. Križan, M. Starič, K. Hayasaka, A. Bobrov, D. Cinabro, T. Nanut, B. Shwartz, R. Itoh, K. K. Joo, E. Won, Liangbin Li, A. Rostomyan, A. Bondar, Z. Natkaniec, K. M. Williams, A. Chen, V. Chekelian, T. Sumiyoshi, M. Bračko, D. A. Epifanov, K. Senyo, Toru Iijima, A. Drutskoy, Hitoshi Yamamoto, Z. P. Zhang, S. L. Olsen, P. Vanhoefer, H. Sahoo, T. Sanuki, H. Hayashii, T. Uglov, I. Adachi, Marko Petrič, J. G. Shiu, J. Dalseno, D. Matvienko, K. Trabelsi, J. B. Kim, C. P. Shen, M. Ritter, Y. Iwasaki, V. Vorobyev, Y. J. Kwon, J. Yamaoka, K. Kinoshita, S. Uehara, O. Schneider, B. Golob, H. Li, J. S. Lange, D. M. Asner, Samo Korpar, E. Solovieva, Frank Simon, V.N. Zhilich, K. Miyabayashi, I. Badhrees, M. Masuda, M. Uchida, V. Chobanova, H. Farhat, G. S. Varner, M. N. Wagner, Y. S. Sohn, B. G. Fulsom, Ihn Sik Seong, T. Kawasaki, Kiyoshi Tanida, John Yelton, Z. Doležal, K. T. Kim, R. Gillard, and Christoph Schwanda
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, Pi, General Physics and Astronomy, B meson, 010306 general physics, 01 natural sciences, Bar (unit)
Abstract: We report the analysis of the three-body e(+)e(-) -> B (B) over bar pi(+/-), B (B) over bar*pi(+/-), and B*(B) over bar* pi(+/-) processes, including the first observations of the Z(b)(+/-)(10610) -> [B (B) over bar* + c.c.](+/-) and Z(b)(+/-)(10650) -> [B*(B) over bar*](+/-) transitions that are found to dominate the corresponding final states. We measure Born cross sections for the three-body production of sigma(e(+)e(-) -> [B (B) over bar* + c.c.](+/-)pi(-/+)) = [17.4 +/- 1.6(stat) +/- 1.9(syst)]pb and sigma(e(+)e(-) -> [B*(B) over bar*](+/-)pi(-/+)) = [8.75 +/- 1.15(stat) +/- 1.04(syst)] pb and set a 90% C.L. upper limit of sigma(e(+)e(-) -> [B (B) over bar](+/-)pi(-/+)) < 2.9 pb. The results are based on a 121.4 fb(-1) data sample collected with the Belle detector at a center-of-mass energy near the Upsilon(10860) peak.
Published: 2016

19. Observation of the DecayBs0→K0K¯0

Author: B. Bhuyan, R. Mussa, Marko Petrič, H. B. Jeon, A. Ishikawa, Yuki Sato, A. Drutskoy, T. E. Browder, C. W. Park, D. Matvienko, P. Križan, D. Cinabro, I. Adachi, S. Sandilya, A. Bobrov, K. Trabelsi, D. M. Asner, A. Vinokurova, S. H. Kim, P. Krokovny, Rakesh Kumar, V. Savinov, K. H. Kang, K. Cho, B. G. Cheon, T. K. Pedlar, V. Babu, Tariq Aziz, T. Aushev, Ihn Sik Seong, T. Kawasaki, A. Zupanc, R. Pestotnik, A. Kuzmin, H. K. Moon, V.N. Zhilich, B. Pal, M. Uchida, L. Pesántez, Peter Kodys, W. W. Jacobs, G. Pakhlova, Z. Drásal, P. Pakhlov, A. Moll, J. Haba, X. H. He, S. Ogawa, Y. Choi, P.A. Lukin, V. Chobanova, Hiroaki Aihara, J. Stypula, C. Pulvermacher, C. Z. Yuan, N. K. Nisar, T. Hara, H. Park, S. Korpar, G. S. Varner, T. Luo, M. J. Kim, K. Miyabayashi, T. Kuhr, A. Bozek, M. Masuda, S. Okuno, B.A. Shwartz, Y. M. Goh, I. Jaegle, Jyoti Prakash Biswal, Sunmin Ryu, M. Starič, R. Ayad, J. Yamaoka, L. Li Gioi, Seema Bahinipati, L. E. Piilonen, E. Ribežl, A. Garmash, K. K. Joo, E. Won, M. N. Wagner, S. Nishida, B. G. Fulsom, T. Kumita, Liangbin Li, A. Rostomyan, V. Chekelian, T. Julius, G. Schnell, S. Uehara, D. Y. Kim, A. J. Schwartz, H. J. Kim, K. M. Williams, R. Chistov, D. Liventsev, Vladimir Zhulanov, A. Chen, P. Vanhoefer, J. G. Shiu, G. B. Mohanty, Samo Stanič, Y. Teramoto, V.E. Shebalin, H. Hayashii, H. Sahoo, T. Nanut, T. A. Shibata, H. Miyata, Prafulla Kumar Behera, I. S. Lee, S.I. Eidelman, Phillip Urquijo, J. Rauch, K. Senyo, E. Nakano, P. Goldenzweig, A. M. Bakich, Z. Natkaniec, T. Sumiyoshi, W. S. Hou, R. Mizuk, Y. Yusa, C. Van Hulse, Martin Ritter, K. Hayasaka, A. Abdesselam, V. Gaur, H. Farhat, J. Libby, D. Červenkov, C. H. Li, T. Sanuki, John Yelton, Y. Iwasaki, Z. Doležal, X. L. Wang, Y. J. Kwon, Andrey Sokolov, T. Schlüter, M. Watanabe, Dipanwita Dutta, D. Joffe, K. T. Kim, K. Inami, R. Gillard, Saraju P. Mohanty, O. Schneider, C. Kiesling, Y. S. Sohn, Y. Seino, M. Z. Wang, K. Kinoshita, U. Tamponi, S. Uno, C. Schwanda, M. Nayak, M. Nakao, I. Badhrees, H. Li, James E. Fast, M. Sumihama, O. Grzymkowska, C. H. Wang, J. Dalseno, Soumen Paul, E. Kato, E. L. Barberio, Y. Watanabe, T. Mori, D. Greenwald, Y. Usov, Z. P. Zhang, T. Uglov, Y. Sakai, E. Solovieva, A. Vossen, O. Seon, Frank Simon, N. Dash, V. Bhardwaj, and M. Bračko
Subjects: Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Detector, General Physics and Astronomy, Resonance, 01 natural sciences, Measure (mathematics), law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: We measure the decay Bs0→K0K0 using data collected at the ?(5S) resonance with the Belle detector at the KEKB e+e- collider. The data sample used corresponds to an integrated luminosity of 121.4 fb-1. We measure a branching fraction B(Bs0→K0K0)=[19.6-5.1+5.8(stat)±1.0(syst)±2.0(NBs0Bs0)]×10-6 with a significance of 5.1 standard deviations. This measurement constitutes the first observation of this decay.
Published: 2016

20. Inclusive and exclusive measurements ofBdecays toχc1andχc2at Belle

Author: A. Abdesselam, H. Ye, V. Gaur, M. Nakao, B. G. Cheon, Andrey Sokolov, J. G. Shiu, A. Bala, Phillip Urquijo, M. Ritter, S. Korpar, M. J. Kim, L. E. Piilonen, D. Cinabro, V.N. Zhilich, Peter Kodys, P. Katrenko, M. Starič, C. H. Wang, C. Kiesling, D. Greenwald, Y. Usov, T. Kumita, M. Nayak, V.E. Shebalin, S. Al Said, B.A. Shwartz, A. Moll, Mikhail Danilov, M. Bračko, A.E. Bondar, S. Yashchenko, G. Pakhlova, H. Sahoo, S. Wehle, K. Trabelsi, K. Miyabayashi, T. Julius, K. Arinstein, A. Vinokurova, C. P. Shen, D. Liventsev, Z. P. Zhang, Y. Iwasaki, Y. J. Kwon, Saraju P. Mohanty, Vladimir Zhulanov, Kiyoshi Tanida, M. E. Sevior, I. S. Lee, I. Adachi, T. A. Shibata, H. Miyata, S.I. Eidelman, S. H. Kim, P. Krokovny, James E. Fast, P. Goldenzweig, Rakesh Kumar, O. Schneider, K. Cho, I. Jaegle, K. Hayasaka, Z. Doležal, X. L. Wang, V. Babu, H. Farhat, Yongsun Kim, S. Uno, C. Schwanda, Yoshinobu Unno, E. Panzenböck, M. Watanabe, T. Nanut, R. Pestotnik, G. Schnell, S. Sandilya, T. Sumiyoshi, B. R. Ko, Marko Petrič, T. K. Pedlar, O. Seon, Frank Simon, R. Mizuk, T. Ferber, J. Haba, L. Li Gioi, A. Garmash, T. Aushev, M. Masuda, A. Frey, Nagao Kobayashi, T. Sanuki, Y. S. Sohn, T. Iijima, D. Semmler, Y. Yook, A. Loos, K. Senyo, Vikas Bansal, Y. Sakai, K. T. Kim, Y. Watanabe, J. Rauch, D. Matvienko, P.A. Lukin, R. Gillard, S. K. Choi, A. M. Bakich, Z. Natkaniec, H. Park, A. Bozek, E. Nakano, C. Pulvermacher, T. Uglov, T. Kuhr, A. Chen, N. Gabyshev, D. Červenkov, D. M. Asner, J. Libby, H. Hayashii, C. H. Li, E. Solovieva, C. Van Hulse, S. Nishida, R. Glattauer, A. Kuzmin, Ruslan Chistov, J. Yamaoka, Jasvinder A. Singh, V.M. Aulchenko, S. Ogawa, Dipanwita Dutta, A. Rostomyan, E. L. Barberio, V. Chekelian, R. Ayad, Seema Bahinipati, Y. Seino, A. Zupanc, M. Sumihama, S. Uehara, K. Chilikin, B. Bhuyan, Yuki Sato, S. Okuno, T. E. Browder, B. Pal, E. Ribežl, X. H. He, D. Y. Kim, A. Bobrov, R. Mussa, Hiroaki Aihara, J. Stypula, V. Savinov, C. Z. Yuan, K. Inami, A. Ishikawa, Y. Teramoto, C. W. Park, P. Križan, M. Z. Wang, K. Kinoshita, U. Tamponi, J. B. Kim, P. Hamer, G. B. Mohanty, Y. Yusa, D. Joffe, I. Badhrees, M. Uchida, Yang Li, Y. Choi, N. K. Nisar, L. Santelj, V. Chobanova, V. Bhardwaj, Y. M. Goh, J. Dalseno, G. S. Varner, K. K. Joo, E. Won, E. Kato, H. Atmacan, R. Itoh, P. Vanhoefer, P. Wang, B. G. Fulsom, O. Frost, W. S. Hou, M. V. Purohit, T. Kawasaki, V. Vorobyev, B. Golob, H. K. Moon, S. Ganguly, and Jyoti Prakash Biswal
Subjects: Physics, Nuclear magnetic resonance, KEKB, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, Pi, 010306 general physics, 01 natural sciences, X(3872)
Abstract: We report inclusive and exclusive measurements for chi(c1) and chi(c2) production in B decays. We measure B(B -> chi X-c1) = (3.03 +/- 0.05 (stat) +/- 0.24(syst)) x 10(-3) and B(B -> chi X-c2) = (0.70 +/- 0.06 (stat) +/- 0.10(syst)) x 10(-3). For the first time, chi(c2) production in exclusive B decays in the modes B-0 -> chi(c2) pi K--(+) and B-0 -> chi(c2) pi(-)pi K-+(+) has been observed, along with first evidence for the B-0 -> chi(c2) pi K--(s)0 decay mode. For chi c1 production, we report the first observation in the B+ -> chi(c1) pi(-)pi K-+(+), B-0 -> chi(c1) pi(-)pi K-+(s)0 and B-0 -> chi(c1) pi(-)pi K-+(+) decay modes. Using these decay modes, we observe a difference in the production mechanism of chi(c2) in comparison to chi(c1) in B decays. In addition, we report searches for X(3872) and chi(c1) (2P) in the B+ -> (chi(c1) pi(+)pi(-))K+ decay mode. The reported results use 772 x 10(6) B (B) over bar events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
Published: 2016

21. Publisher’s Note: Measurement of the lepton forward-backward asymmetry inB→Xsℓ+ℓ−decays with a sum of exclusive modes [Phys. Rev. D93, 032008 (2016)]

Author: Hikaru Kawai, G. Schnell, T. Aushev, L. E. Piilonen, K. Trabelsi, T. Ferber, T. Iijima, J. Yamaoka, C. P. Shen, P. Pakhlov, Yukinori Sato, J. G. Shiu, G. Tatishvili, Y. F. Liu, E. Won, R. Mussa, T.-A. Shibata, Phillip Urquijo, I. Adachi, S. Yashchenko, G. Bonvicini, A.L. Sibidanov, M. Nayak, T. Julius, T. Kuhr, Y. Teramoto, Meng Wang, Y. Watanabe, H. Yamamoto, Z. P. Zhang, H. Park, A. Bozek, A. Garmash, M. Uchida, S. Sandilya, J. B. Kim, H. Kichimi, Y. B. Li, Dipanwita Dutta, V. Chobanova, P. Vanhoefer, A. J. Schwartz, T. E. Browder, M. J. Kim, B. G. Cheon, H. Miyata, A. Bala, K. Cho, A. Ishikawa, A. Drutskoy, M. Starič, T. Sumiyoshi, Jeremy Dalseno, Y. Hoshi, K. Adamczyk, Martin Ritter, H. K. Park, Y. Yamashita, T. Kumita, Z. Natkaniec, A. M. Bakich, C. Liu, A. Chen, R. Ayad, B. Bhuyan, T. Sanuki, Jung-Hyun Kim, S. E. Vahsen, Marko Petrič, K. Hayasaka, V. Gaur, V. Bhardwaj, J.E. Fast, A. Zupanc, H. J. Hyun, W. S. Hou, P. Krokovny, V. M. Aulchenko, T. K. Pedlar, A. Moll, M. Nakao, M. Shapkin, S. Uehara, G. S. Varner, V.N. Zhilich, Y. Kato, O. Nitoh, H. Hayashii, Y. J. Kwon, Hyunyong Kim, D. Y. Kim, A. Kuzmin, J. Libby, J. Klucar, D. Semmler, X. H. He, O. Schneider, R. Itoh, Hiroaki Aihara, K. Kinoshita, M. Röhrken, V. Vorobyev, S. Ogawa, P. Wang, D. M. Asner, E. Ribezl, V. Savinov, M. Danilov, D. Liventsev, T. Iwashita, Frank Simon, E. Nedelkovska, M. E. Sevior, I. Jaegle, Y. Choi, U. Tamponi, Byeong Rok Ko, Y. Sakai, Yongsun Kim, S. Uno, C. Schwanda, T. Hara, L. Santelj, I. S. Cho, S. Nishida, Y. Unno, N. K. Nisar, D. Santel, P. Krizan, H. Farhat, A. Rostomyan, Andrey Sokolov, H. Sahoo, B. Golob, E. Solovieva, X. L. Wang, Y. M. Goh, V. Chekelian, T. Uglov, C. H. Wang, K. Senyo, Y. Iwasaki, T. Kawasaki, S. H. Lee, Y. S. Sohn, E. Kato, R. Pestotnik, Z. Drásal, J. H. Kang, A.E. Bondar, D. Cinabro, V. V. Zhulanov, B. Shwartz, C. B. Van Hulse, R. Gillard, Z. Q. Liu, Y. Yook, Semen Eidelman, Y. Ushiroda, A. Abdesselam, Samo Stanič, T. Peng, M. Bračko, P.A. Lukin, D. Červenkov, R. Mizuk, T. Saito, Peter Kodys, Zdenek Dolezal, R. Seidl, G. B. Mohanty, J. Haba, S. Korpar, Kevin Varvell, K. Dutta, and Y. Usov
Subjects: Physics, Particle physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, Electroweak interaction, Hadron, 01 natural sciences, Standard Model, KEKB, 0103 physical sciences, High Energy Physics::Experiment, Invariant mass, 010306 general physics, Lepton
Abstract: We report the first measurement of the lepton forward-backward asymmetry AFB as a function of the squared four-momentum of the dilepton system, q2, for the electroweak penguin process B→Xsl+l- with a sum of exclusive final states, where l is an electron or a muon and Xs is a hadronic recoil system with an s quark. The results are based on a data sample containing 772×106 BB¯ pairs recorded at the ϒ(4S) resonance with the Belle detector at the KEKB e+e- collider. AFB for the inclusive B→Xsl+l- is extrapolated from the sum of 10 exclusive Xs states whose invariant mass is less than 2 GeV/c2. For q2>10.2 GeV2/c2, AFB
Published: 2016

22. Search for the rare decayD0→γγat Belle

Author: K. M. Williams, A. Chen, T. A. Shibata, J. G. Shiu, H. Miyata, Prafulla Kumar Behera, H. Hayashii, T. Nanut, S.I. Eidelman, P. Pakhlov, Phillip Urquijo, A. Zupanc, T. Kuhr, Z. Drásal, Tariq Aziz, K. Hayasaka, M. Z. Wang, K. Kinoshita, U. Tamponi, B. Pal, X. H. He, R. Ayad, Seema Bahinipati, Y. Choi, M. Niiyama, L. Pesántez, H. Park, W. S. Hou, A. Bozek, N. K. Nisar, T. Hara, Hiroaki Aihara, J. Stypula, D. Y. Kim, A. Kuzmin, P.A. Lukin, M. J. Kim, M. Masuda, C. Z. Yuan, M. Starič, S. Ogawa, Y. M. Goh, Y. Sakai, C. Pulvermacher, T. Kumita, B. G. Cheon, Yuki Sato, T. E. Browder, Y. Watanabe, Ihn Sik Seong, A. Bobrov, K. Inami, V. Savinov, S. Nishida, Liangbin Li, A. Rostomyan, V. Chekelian, S. Korpar, S. Sandilya, R. Pestotnik, B. Golob, H. K. Moon, J. S. Lange, V.M. Aulchenko, G. B. Mohanty, R. Mizuk, Y. Yusa, D. Joffe, T. Uglov, I. Badhrees, J. Dalseno, Soumen Paul, V.E. Shebalin, T. Kawasaki, M. Uchida, V. Chobanova, G. S. Varner, James E. Fast, M. N. Wagner, B. G. Fulsom, H. Sahoo, R. Mussa, H. B. Jeon, Y. Iwasaki, Y. J. Kwon, A. Ishikawa, O. Schneider, C. W. Park, P. Križan, A. J. Schwartz, H. J. Kim, V.N. Zhilich, E. Solovieva, Peter Kodys, W. W. Jacobs, H. Li, T. K. Pedlar, E. L. Barberio, Sunmin Ryu, K. K. Joo, E. Won, E. Kato, A. Vossen, O. Seon, Frank Simon, N. Dash, V. Bhardwaj, Jyoti Prakash Biswal, P. Vanhoefer, A. Vinokurova, Marko Petrič, S. H. Kim, P. Krokovny, Rakesh Kumar, K. H. Kang, K. Cho, M. Sumihama, K. Miyabayashi, Saraju P. Mohanty, D. Matvienko, F. Breibeck, A. Abdesselam, S. Uno, C. Schwanda, V. Gaur, H. Farhat, M. Nakao, D. M. Asner, Z. P. Zhang, L. E. Piilonen, Kevin Varvell, T. Mori, D. Greenwald, T. Julius, R. Chistov, T. Sumiyoshi, Martin Ritter, T. Sanuki, J. Libby, Y. Seino, A. Garmash, T. Aushev, J. Haba, John Yelton, Z. Doležal, X. L. Wang, K. T. Kim, B.A. Shwartz, A. Moll, R. Gillard, D. Cinabro, M. Watanabe, D. Liventsev, Vladimir Zhulanov, I. S. Lee, I. Adachi, I. Jaegle, P. Goldenzweig, O. Grzymkowska, C. H. Wang, C. Kiesling, K. Senyo, G. Pakhlova, E. Nakano, C. Van Hulse, K. Prasanth, M. Bračko, Jasvinder A. Singh, T. Schlüter, Dipanwita Dutta, M. Nayak, L. Li Gioi, G. Schnell, Samo Stanič, S. Okuno, J. Rauch, E. Ribežl, Z. Natkaniec, Y. Teramoto, D. Červenkov, A. Drutskoy, K. Trabelsi, V. Babu, and Y. S. Sohn
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, Radiative decay, 01 natural sciences, Confidence interval, 3. Good health, Luminosity, law.invention, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, Limit (mathematics), Atomic physics, 010306 general physics, Collider
Abstract: We search for the rare radiative decay D-0 -> gamma gamma using a data sample with an integrated luminosity of 832 fb(-1) recorded by the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We find no statistically significant signal and set an upper limit on the branching fraction of B(D-0 -> gamma gamma) < 8.5 x 10(-7) at 90% confidence level. This is the most restrictive limit on the decay channel to date.
Published: 2016

23. Study of B0→ρ+ρ−decays and implications for the CKM angleϕ2

Author: C. Pulvermacher, Jochen Dingfelder, S. Sandilya, Z. Drásal, W. S. Hou, S. Nishida, T. Iijima, Liangbin Li, Tariq Aziz, A. Rostomyan, V. Chekelian, Yang Li, Y. Choi, N. K. Nisar, Mikhail Danilov, B. Golob, T. Kuhr, R. Mizuk, T. Hara, L. Santelj, Tsuyoshi Horiguchi, S. Okuno, P. Pakhlov, H. K. Moon, K. T. Kim, E. Ribežl, M. J. Kim, H. Park, Y. M. Goh, P. Hamer, Andrey Sokolov, A. Bozek, R. Gillard, M. Starič, S. K. Choi, G. B. Mohanty, K. K. Joo, E. Won, J. G. Shiu, R. Pestotnik, Ruslan Chistov, H. Atmacan, N. Dash, Y. Yusa, J. B. Kim, Y. Teramoto, T. Kumita, B. Bhuyan, Hitoshi Yamamoto, Yuki Sato, T. E. Browder, P. Vanhoefer, A. Garmash, T. Aushev, D. Joffe, M. Ritter, I. Badhrees, T. Nanut, A. Vinokurova, James E. Fast, A. Bobrov, M. Uchida, V. Savinov, J. Libby, V. Chobanova, J. Dalseno, A. Chen, T. Mori, D. Greenwald, H. Sahoo, Y. Watanabe, Y. Yook, H. Farhat, D. Liventsev, E. Kato, Vladimir Zhulanov, Y. Usov, D. Y. Kim, Y. Iwasaki, S. H. Kim, P. Krokovny, Y. J. Kwon, Y. Seino, G. S. Varner, M. E. Sevior, I. S. Lee, I. Adachi, P. Goldenzweig, B. G. Cheon, O. Schneider, D. Cinabro, K. Chilikin, S. Ogawa, R. Itoh, Z. P. Zhang, A.S. Kuzmin, P. Chang, K. H. Kang, K. Trabelsi, P. Wang, C. P. Shen, K. Inami, Jung-Hyun Kim, T. A. Shibata, H. Miyata, M. N. Wagner, B. G. Fulsom, M. Watanabe, Y. S. Sohn, Marko Petrič, V.N. Zhilich, Prafulla Kumar Behera, S.I. Eidelman, S. Korpar, M. Sumihama, K. Hayasaka, M. Nayak, T. Ferber, Z. Doležal, K. Miyabayashi, D. Matvienko, T. Uglov, P. Lukin, H. Hayashii, B. R. Ko, Y. Sakai, D. M. Asner, J. Haba, M. Z. Wang, K. Kinoshita, U. Tamponi, Jyoti Prakash Biswal, T. Kawasaki, G. Pakhlova, J. Yamaoka, A. J. Schwartz, H. J. Kim, A. Abdesselam, V. Gaur, L. Li Gioi, T. K. Pedlar, T. Sumiyoshi, A. Ishikawa, C. H. Wang, E. Solovieva, G. Schnell, C. W. Park, P. Križan, E. L. Barberio, M. Nakao, T. Sanuki, L. E. Piilonen, S. Yashchenko, C. Kiesling, T. Julius, A. Vossen, O. Seon, Frank Simon, H. Ye, M. Bračko, A. M. Bakich, Z. Natkaniec, N. Gabyshev, D. Červenkov, Vikas Bansal, E. Nakano, C. Van Hulse, Dipanwita Dutta, A. Moll, I. Jaegle, K. Senyo, M. Masuda, S. Al Said, Saraju P. Mohanty, A. Zupanc, V. Babu, Yongsun Kim, S. Uno, C. Schwanda, B. Pal, X. H. He, Hiroaki Aihara, W. W. Jacobs, P. Katrenko, V.E. Shebalin, K. Arinstein, and Yoshinobu Unno
Subjects: Nuclear physics, Physics, Particle physics, KEKB, 010308 nuclear & particles physics, Branching fraction, Isospin, Electron–positron annihilation, 0103 physical sciences, CP violation, High Energy Physics::Experiment, 010306 general physics, 01 natural sciences
Abstract: We present a measurement of the branching fraction and the longitudinal polarization fraction of B-0 -> rho(+)rho(-) decays, as well as the time-dependent CP violating parameters in decays into longitudinally polarized rho(+)rho(-) pairs with Belle's final data set of 772 x 10(6) B (B) over bar pairs, at the Upsilon(4S) resonance, collected at the asymmetric-energy e(+)e(-) collider KEKB. We obtain B(B-0 -> rho(+)rho(-)) = (28.3 +/- 1.5(stat) +/- 1.5(syst)) x 10(-6), f(L) = 0.988 +/- 0.012(stat) +/- 0.023(syst), A(CP) = 0.00 +/- 0.10(stat) +/- 0.06(syst), S-CP = -0.13 +/- 0.15(stat) +/- 0.05(syst). We perform an isospin analysis to constrain the Cabibbo-Kobayashi-Maskawa angle phi(2) and obtain two solutions with phi(2) = (93.7 +/- 10.6)degrees, being most compatible with other Standard-Model based fits to the data.
Published: 2016

24. Measurement of the decayB→Dℓνℓin fully reconstructed events and determination of the Cabibbo-Kobayashi-Maskawa matrix element|Vcb

Author: Y. Sakai, H. Farhat, S. Al Said, A. Drutskoy, L. Pesántez, V. Trusov, Peter Kodys, G. Bonvicini, Saraju P. Mohanty, Andrey Sokolov, P. Hamer, G. B. Mohanty, K. Trabelsi, J. Libby, Mikhail Danilov, R. Glattauer, C. L. Hsu, Vikas Bansal, R. Ayad, Y. S. Sohn, E. Solovieva, T. Nanut, C. H. Wang, T. Sumiyoshi, R. Pestotnik, Y. Seino, M. Z. Wang, K. Kinoshita, U. Tamponi, A. Chen, James E. Fast, E. Nakano, A. Garmash, T. Aushev, Yongsun Kim, S. Uno, C. Schwanda, T. Sanuki, S. H. Kim, P. Krokovny, Z. Doležal, Y. Yook, Jyoti Prakash Biswal, D. Y. Kim, A. J. Schwartz, S. Okuno, D. Joffe, C. Van Hulse, T. Iijima, E. Ribežl, A.L. Sibidanov, A. Zupanc, T. Ferber, W. S. Hou, J. Hasenbusch, C. Oswald, H. Sahoo, T. Kawasaki, I. Badhrees, V.N. Zhilich, Yueh-Feng Liu, K. Chilikin, Dipanwita Dutta, Y. Yamashita, K. H. Kang, K. Cho, L. E. Piilonen, J. G. Shiu, A. Abdesselam, Y. Teramoto, S. Ogawa, R. Mizuk, E. L. Barberio, J. Dalseno, Yoshinobu Unno, K. Miyabayashi, M. Uchida, S. Sandilya, T. A. Shibata, H. Miyata, T. Kuhr, A. Moll, V. Vorobyev, V. Gaur, V. Chobanova, D. Cinabro, G. Pakhlova, S.I. Eidelman, N. Dash, K. Inami, F. Breibeck, R. Mussa, H. B. Jeon, Phillip Urquijo, G. Inguglia, Y. Watanabe, K. Hayasaka, M. Nakao, T. Julius, M. Ritter, A. Ishikawa, B. Pal, M. Masuda, J. Haba, G. S. Varner, V.E. Shebalin, P. Lukin, Jung-Hyun Kim, A. Frey, Y. J. Kwon, P. Križan, J. MacNaughton, Hiroaki Aihara, E. Kato, K. K. Joo, E. Won, P. Wang, K. Senyo, K. T. Kim, J. B. Kim, Marko Petrič, B. G. Fulsom, T. K. Pedlar, Jochen Dingfelder, Ruslan Chistov, Hitoshi Yamamoto, P. Vanhoefer, R. Gillard, Kevin Varvell, B. G. Cheon, Tariq Aziz, O. Schneider, B. Golob, Yang Li, Y. Choi, N. K. Nisar, T. Hara, L. Santelj, D. Greenwald, Y. Usov, Y. M. Goh, Z. P. Zhang, H. Hayashii, A. Vossen, A.S. Kuzmin, D. Matvienko, O. Seon, Frank Simon, S. Korpar, M. Nayak, B.A. Shwartz, K. Adamczyk, D. Liventsev, Vladimir Zhulanov, D. M. Asner, M. E. Sevior, I. S. Lee, C. Pulvermacher, I. Adachi, P. Goldenzweig, M. J. Kim, M. Starič, P. Pakhlov, H. Park, A. Bozek, B. Bhuyan, T. E. Browder, V. Savinov, S. Nishida, Liangbin Li, A. Rostomyan, V. Chekelian, H. K. Moon, C. Kiesling, M. Bračko, G. Schnell, J. Rauch, A. M. Bakich, Z. Natkaniec, N. Gabyshev, and D. Červenkov
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Cabibbo–Kobayashi–Maskawa matrix, Bar (music), Branching fraction, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, 01 natural sciences, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics, Lepton
Abstract: We present a determination of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V-cb vertical bar using the decay B -> Dl nu(l) (l = e,mu) based on 711 fb(-1) of e(+)e(-) -> Upsilon(4S) data recorded by the Belle detector and containing 772 x 10(6) B (B) over bar pairs. One B meson in the event is fully reconstructed in a hadronic decay mode, while the other, on the signal side, is partially reconstructed from a charged lepton and either a D+ or D-0 meson in a total of 23 hadronic decay modes. The isospin-averaged branching fraction of the decay B -> Dl nu(l) is found to be B(B-0 -> D(-)l(vertical bar)nu(l)) = (2.31 +/- 0.03(stat) +/- 0.11(syst))%. Analyzing the differential decay rate as a function of the hadronic recoil with the parametrization of Caprini, Lellouch, and Neubert and using the form-factor prediction G(1) = 1.0541 +/- 0.0083 calculated by FNAL/MILC, we obtain eta(EW)vertical bar V-cb vertical bar = (40.12 +/- 1.34) x 10(-3), where eta(EW) is the electroweak correction factor. Alternatively, assuming the model-independent form-factor parametrization of Boyd, Grinstein, and Lebed and using lattice QCD data from the FNAL/MILC and HPQCD collaborations, we find eta(EW)vertical bar V-cb vertical bar = (41.10 +/- 1.14) x 10(-3).
Published: 2016

25. First observation of the decayB0→ψ(2S)π0

Author: L. E. Piilonen, S. Yashchenko, T. Julius, G. Schnell, K. Inami, E. L. Barberio, B. G. Cheon, G. Pakhlova, S. Korpar, W. S. Hou, T. K. Pedlar, C. Pulvermacher, J. Rauch, V. Vorobyev, A. M. Bakich, Z. Natkaniec, T. Mori, S. Sandilya, Y. Usov, N. Gabyshev, D. Červenkov, M. Uchida, O. Seon, Frank Simon, L. Li Gioi, M. Watanabe, A. Garmash, Y. Watanabe, J. G. Shiu, V. Chobanova, A. Drutskoy, T. Iijima, K. T. Kim, T. Aushev, H. Hayashii, N. Dash, M. J. Kim, E. Nakano, Phillip Urquijo, T. Schlüter, B. Golob, Z. P. Zhang, E. Ribežl, K. Trabelsi, M. Starič, J. Yamaoka, V. Bhardwaj, A. Vinokurova, T. Kuhr, H. K. Moon, G. S. Varner, T. Kumita, H. Ye, C. Van Hulse, R. Gillard, V. Babu, A. Zupanc, C. Kiesling, H. Sahoo, K. Sumisawa, S. H. Kim, P. Krokovny, Rakesh Kumar, K. Cho, T. Ferber, Ruslan Chistov, P. Wang, R. Mizuk, M. N. Wagner, Y. Iwasaki, Y. J. Kwon, T. Nanut, M. Z. Wang, K. Kinoshita, U. Tamponi, T. Sumiyoshi, Jasvinder A. Singh, Y. Sakai, Y. Teramoto, B. G. Fulsom, H. Li, M. Bračko, O. Schneider, Jyoti Prakash Biswal, Martin Ritter, T. Sanuki, M. Nayak, M. Sumihama, R. Mussa, H. B. Jeon, A. Ishikawa, Saraju P. Mohanty, A. Moll, A. Abdesselam, E. Solovieva, V. Gaur, C. W. Park, Peter Kodys, P. Križan, B. Pal, D. Cinabro, Yongsun Kim, P. Katrenko, Andrey Sokolov, S. Uno, M. Nakao, I. Jaegle, C. Schwanda, T. Uglov, T. Kawasaki, Hiroaki Aihara, J. Stypula, James E. Fast, C. Z. Yuan, T. A. Shibata, H. Miyata, K. Senyo, Prafulla Kumar Behera, O. Grzymkowska, C. H. Wang, S.I. Eidelman, K. Hayasaka, J. Haba, V.E. Shebalin, A. Kuzmin, J. Libby, B.A. Shwartz, Y. Seino, S. Ogawa, D. Liventsev, Vladimir Zhulanov, M. E. Sevior, I. S. Lee, I. Adachi, P. Goldenzweig, Yoshinobu Unno, J. B. Kim, M. Masuda, R. Ayad, Seema Bahinipati, S. Uehara, D. Y. Kim, V.N. Zhilich, K. Miyabayashi, E. Nedelkovska, H. Farhat, Y. S. Sohn, A. J. Schwartz, H. J. Kim, Marko Petrič, D. Matvienko, D. M. Asner, K. M. Williams, A. Chen, Z. Drásal, P. Pakhlov, H. Park, A. Bozek, B. Bhuyan, T. E. Browder, A. Bobrov, R. Pestotnik, V. Savinov, G. B. Mohanty, Y. Yusa, D. Joffe, I. Badhrees, Yang Li, S. Nishida, Y. Choi, N. K. Nisar, T. Hara, Liangbin Li, Y. M. Goh, J. Dalseno, V. Chekelian, Soumen Paul, E. Kato, Sunmin Ryu, K. K. Joo, E. Won, P. Vanhoefer, John Yelton, Z. Doležal, and X. L. Wang
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Detector, 01 natural sciences, law.invention, KEKB, law, 0103 physical sciences, 010306 general physics, Collider, Bar (unit)
Abstract: We report a measurement of the B-0 -> psi(2S)pi(0) branching fraction based on the full Upsilon(4S) data set of 772 x 10(6) B (B) over bar pairs collected by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain B(B-0 -> psi(2S)pi(0)) = (1.17 +/- 0.17(stat) +/- 0.08(syst)) x 10(-5). The result has a significance of 7.2 standard deviations and is the first observation of the decay B-0 -> psi(2S)pi(0).
Published: 2016

26. Search forB0→π−τ+ντwith hadronic tagging at Belle

Author: S. Yashchenko, T. Sumiyoshi, Martin Ritter, T. Sanuki, T. Julius, Hirokazu Miyake, J. Yamaoka, A.L. Sibidanov, A. Zupanc, H. Sahoo, Jyoti Prakash Biswal, T. Kuhr, B. Pal, Hiroaki Aihara, J. Stypula, M. Uchida, V. Chobanova, A. Abdesselam, V. Gaur, J. G. Shiu, M. Nakao, E. Nakano, Y. Iwasaki, Y. J. Kwon, C. Van Hulse, Jochen Dingfelder, Phillip Urquijo, O. Schneider, D. Cinabro, V.E. Shebalin, Z. P. Zhang, S. Al Said, G. Inguglia, G. S. Varner, Dipanwita Dutta, V.N. Zhilich, Saraju P. Mohanty, A. Garmash, T. Aushev, A. Moll, Yongsun Kim, S. Uno, Jung-Hyun Kim, A. Frey, V. Babu, B. G. Cheon, K. Miyabayashi, C. Kiesling, R. Itoh, P. Wang, T. K. Pedlar, D. Greenwald, C. Schwanda, Y. Usov, M. J. Kim, I. Jaegle, B. G. Fulsom, V. Trusov, J. Libby, M. Bračko, J. Haba, M. Starič, T. Ferber, J. Rauch, H. Farhat, J. Hasenbusch, R. Glattauer, S. Korpar, S. Sandilya, D. H. Lee, A. M. Bakich, K. Senyo, Z. Natkaniec, D. Getzkow, Y. Sakai, Yueh-Feng Liu, G. Pakhlova, Y. Seino, E. L. Barberio, N. Gabyshev, D. Červenkov, C. Oswald, Y. S. Sohn, R. Mussa, M. Masuda, H. B. Jeon, T. Kawasaki, P.A. Lukin, A. Ishikawa, C. H. Wang, C. Pulvermacher, S. Okuno, A. Drutskoy, Y. Watanabe, G. Schnell, S. H. Kim, P. Krokovny, E. Ribežl, P. Križan, E. Solovieva, K. H. Kang, K. Cho, K. Trabelsi, Andrey Sokolov, A. Chen, Y. Teramoto, Mikhail Danilov, M. Shapkin, M. Nayak, James E. Fast, A. Vossen, Y. Yook, Peter Kodys, D. Liventsev, Vladimir Zhulanov, Frank Simon, I. S. Lee, I. Adachi, Marko Petrič, P. Goldenzweig, K. Arinstein, D. Matvienko, Yoshinobu Unno, Z. Doležal, N. Dash, D. M. Asner, K. T. Kim, R. Pestotnik, R. Gillard, Z. Drásal, R. Mizuk, Toru Iijima, A. Kuzmin, S. Ogawa, R. Ayad, B. Bhuyan, T. E. Browder, V. Savinov, T. Nanut, P. Pakhlov, S. Uehara, H. Park, D. Y. Kim, A. Bozek, S. Nishida, Liangbin Li, A. Rostomyan, V. Chekelian, J. B. Kim, P. Hamer, G. B. Mohanty, D. Joffe, I. Badhrees, Yang Li, Y. Choi, N. K. Nisar, T. Hara, L. Santelj, Y. M. Goh, J. Dalseno, E. Kato, K. Chilikin, K. Inami, H. Hayashii, M. Z. Wang, K. Kinoshita, B. Golob, H. K. Moon, J. S. Lange, W. S. Hou, V. Vorobyev, K. K. Joo, E. Won, Hitoshi Yamamoto, P. Vanhoefer, T. A. Shibata, H. Miyata, S.I. Eidelman, K. Hayasaka, H. Li, I. Z. Danko, L. Pesántez, and L. E. Piilonen
Subjects: Hadronic decay, Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Resonance, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics, Collider
Abstract: We search for the process B-0 -> pi(-) tau(+)nu(tau) using the full Belle data set of 711 fb(-1), corresponding to 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 reconstruct one B meson in a hadronic decay and search for the B-0 -> pi(-)tau(+)nu(tau) process in the remainder of the event. No significant signal is observed and an upper limit of B(B-0 -> pi(-) tau(+)nu(tau)) < 2.5 x 10(-4) is obtained at the 90% confidence level.
Published: 2016

27. Measurement of the lepton forward-backward asymmetry inB→Xsℓ+ℓ−decays with a sum of exclusive modes

Author: Z. Q. Liu, R. Gillard, A.E. Bondar, B. G. Cheon, Z. Doležal, X. L. Wang, H. Farhat, H. Sahoo, J. Dalseno, Marko Petrič, H. J. Hyun, M. Z. Wang, K. Kinoshita, U. Tamponi, A. Drutskoy, A. Moll, A. M. Bakich, Y. Iwasaki, E. Ribežl, A. Zupanc, Y. Ushiroda, Z. Natkaniec, T. Iijima, B. Bhuyan, Z. Drásal, Y. J. Kwon, I. Adachi, H. K. Park, G. Bonvicini, R. Seidl, T. E. Browder, E. Kato, Y. Yamashita, Y. S. Sohn, J. Klucar, J. Haba, O. Schneider, S. Korpar, Y. Teramoto, K. Trabelsi, Andrey Sokolov, Kevin Varvell, T. Kuhr, A. Garmash, O. Nitoh, C. P. Shen, P. Krokovny, J. H. Kang, D. Červenkov, D. M. Asner, Y. Sakai, H. Aihara, V. Savinov, V. Bhardwaj, K. Cho, H. Kawai, J. B. Kim, Y. Usov, V.M. Aulchenko, Yueh-Feng Liu, James E. Fast, Yongsun Kim, A. J. Schwartz, B.A. Shwartz, J. Libby, X. H. He, E. Won, S. Uno, Y. Yook, C. Schwanda, T. Kawasaki, I. Jaegle, S. Nishida, J. Yamaoka, Z. P. Zhang, T. Aushev, B. R. Ko, R. Mussa, K. Dutta, K. Adamczyk, G. B. Mohanty, G. Tatishvili, M. J. Kim, H. Hayashii, Y. Watanabe, A. Ishikawa, H. Yamamoto, M. Starič, Vladimir Zhulanov, T. K. Pedlar, Yukinori Sato, J. G. Shiu, Phillip Urquijo, M. Ritter, P. Križan, C. Liu, E. Solovieva, V. Chekelian, M. E. Sevior, T. Saito, T. Peng, T. Ferber, A.L. Sibidanov, T. Kumita, M. Bračko, A. Abdesselam, D. Santel, V. Gaur, T. Iwashita, M. Nakao, V.N. Zhilich, Y. Kato, P. Pakhlov, P. Vanhoefer, D. Semmler, Peter Kodys, H. J. Kim, D. Cinabro, T. Sumiyoshi, M. Uchida, S.E. Vahsen, Sang Hoon Lee, G. Schnell, H. Park, K. Senyo, A. Bozek, A. Chen, Frank Simon, H. Kichimi, T. Sanuki, Samo Stanič, L. E. Piilonen, Mikhail Danilov, M. Shapkin, V. Chobanova, M. Nayak, D. Liventsev, Jung-Hyun Kim, M. Röhrken, E. Nedelkovska, R. Mizuk, W. S. Hou, S. Yashchenko, Yang Li, T. Julius, Y. Choi, R. Pestotnik, V. Vorobyev, C. Van Hulse, N. K. Nisar, T. Hara, L. Santelj, G. S. Varner, B. Golob, R. Itoh, Y. M. Goh, A. Rostomyan, P. Wang, I. S. Cho, C. H. Wang, D. Dutta, Y. Unno, R. Ayad, T. A. Shibata, H. Miyata, Y. Hoshi, S.I. Eidelman, S. Uehara, D. Y. Kim, K. Hayasaka, T. Uglov, A. Kuzmin, S. Ogawa, S. Sandilya, A. Bala, and P.A. Lukin
Subjects: Physics, Particle physics, Muon, 010308 nuclear & particles physics, media_common.quotation_subject, Hadron, Electroweak interaction, 01 natural sciences, Asymmetry, Standard Model, Nuclear physics, KEKB, 0103 physical sciences, High Energy Physics::Experiment, Invariant mass, 010306 general physics, Lepton, media_common
Abstract: We report the first measurement of the lepton forward-backward asymmetry AFB as a function of the squared four-momentum of the dilepton system, q2, for the electroweak penguin process B→Xs+- with a sum of exclusive final states, where is an electron or a muon and Xs is a hadronic recoil system with an s quark. The results are based on a data sample containing 772×106 BB¯ pairs recorded at the (4S) resonance with the Belle detector at the KEKB e+e- collider. AFB for the inclusive B→Xs+- is extrapolated from the sum of 10 exclusive Xs states whose invariant mass is less than 2 GeV/c2. For q2>10.2 GeV2/c2, AFB
Published: 2016

28. Study ofπ0pair production in single-tag two-photon collisions

Author: B.A. Shwartz, C. H. Wang, S. Nishida, T. A. Shibata, Y. Yamashita, H. Miyata, H. Ye, C. C. Zhang, A. Moll, Prafulla Kumar Behera, T. E. Browder, M. J. Kim, Liangbin Li, D. Liventsev, A. Rostomyan, Marko Petrič, G. Pakhlova, Vladimir Zhulanov, Y. Watanabe, V. Chekelian, M. Starič, M. E. Sevior, I. S. Lee, V. Chobanova, Kiyoshi Tanida, K. Hayasaka, K. K. Joo, P. Goldenzweig, Jyoti Prakash Biswal, A. M. Bakich, E. Won, I. Jaegle, G. B. Mohanty, T. Iijima, J. Haba, T. Kumita, G. S. Varner, Z. Doležal, H. Atmacan, D. Matvienko, H. Hayashii, S. Korpar, R. Itoh, Y. Yusa, Jochen Dingfelder, K. T. Kim, R. Gillard, J. Yamaoka, M. Bračko, P. Wang, P. Pakhlov, M. N. Wagner, Jung-Hyun Kim, S. K. Choi, P. Vanhoefer, V.E. Shebalin, G. Bonvicini, K. Senyo, J. Rauch, D. Joffe, D. M. Asner, B. G. Fulsom, U. Tamponi, D. A. Epifanov, A. Abdesselam, S. Al Said, V. Gaur, M. Nakao, V. Babu, M. Nayak, E. Solovieva, Y. J. Kwon, L. E. Piilonen, W. S. Hou, T. Aushev, A. Vinokurova, H. Park, A. Bozek, I. Badhrees, A. Zupanc, V.M. Aulchenko, Z. Natkaniec, O. Schneider, Saraju P. Mohanty, E. L. Barberio, M. Masuda, E. Nakano, J. G. Shiu, D. H. Lee, Yang Li, V. Vorobyev, S. H. Kim, Y. Choi, N. Gabyshev, D. Červenkov, E. Ribežl, Ruslan Chistov, B. Bhuyan, Yuki Sato, N. K. Nisar, Yongsun Kim, K. H. Kang, K. Cho, L. Santelj, C. Van Hulse, M. Ritter, S. Yashchenko, P. Krokovny, T. Ferber, B. Pal, S. Uno, C. Schwanda, A. Bobrov, X. H. He, K. Chilikin, T. Julius, S. Sandilya, Y. M. Goh, Y. Iwasaki, M. Sumihama, B. R. Ko, J. Dalseno, T. Kawasaki, V. Savinov, Hiroaki Aihara, Dipanwita Dutta, D. Cinabro, H. K. Moon, K. Inami, G. Schnell, Y. Teramoto, J.E. Fast, T. K. Pedlar, J. S. Lange, T. Mori, E. Kato, A. Vossen, P.A. Lukin, Z. P. Zhang, A. Garmash, O. Seon, Frank Simon, F. Giordano, J. Libby, N. Dash, C. P. Shen, C. H. Li, T. Sumiyoshi, R. Glattauer, T. Sanuki, Y. Seino, I. Adachi, Andrey Sokolov, J. B. Kim, Yoshinobu Unno, T. Nanut, Semen Eidelman, S. Uehara, R. Mussa, D. Y. Kim, A. Ishikawa, R. Mizuk, C. W. Park, P. Križan, T. Uglov, A. Kuzmin, S. Ogawa, V.N. Zhilich, Mikhail Danilov, K. Miyabayashi, R. Pestotnik, Z. Drásal, H. Farhat, B. Golob, B. G. Cheon, K. M. Williams, A. Chen, Y. S. Sohn, H. Nakazawa, and Meng Wang
Subjects: Particle physics, Photon, Electron–positron annihilation, BELLE, measured [cross section], 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, KEK-B, KEKB, Pion, transition [form factor], 0103 physical sciences, ddc:530, Invariant mass, 010306 general physics, two-photon, Physics, scattering [pi], 010308 nuclear & particles physics, Scattering, photon, Form factor (quantum field theory), pair production, Pair production, kinematics, differential cross section, High Energy Physics::Experiment
Abstract: We report a measurement of the differential cross section of $\pi^0$ pair production in single-tag two-photon collisions, $\gamma^* \gamma \to \pi^0 \pi^0$, in $e^+ e^-$ scattering. The cross section is measured for $Q^2$ up to 30 GeV$^2$, where $Q^2$ is the negative of the invariant mass squared of the tagged photon, in the kinematic range 0.5 GeV < W < 2.1 GeV and $|\cos \theta^*|$ < 1.0 for the total energy and pion scattering angle, respectively, in the $\gamma^* \gamma$ center-of-mass system. The results are based on a data sample of 759 fb$^{-1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. The transition form factor of the $f_0(980)$ and that of the $f_2(1270)$ with the helicity-0, -1, and -2 components separately are measured for the first time and are compared with theoretical calculations., Comment: 36 pages, 37 figures, 11 tables, Belle Preprint 2015-15, KEK Preprint 2015-24
Published: 2016
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29. Measurements of theϒ(10860)andϒ(11020)resonances viaσ(e+e−→ϒ(nS)π+π−)

Author: R. Mussa, M. Uchida, V. Chobanova, Peter Kodys, A. Ishikawa, D. Liventsev, C. W. Park, P. Križan, D. Cinabro, G. S. Varner, B. G. Cheon, A. Zupanc, Sunmin Ryu, D. Getzkow, V.N. Zhilich, G. B. Mohanty, E. Won, K. Arinstein, R. Itoh, A. Rostomyan, R. Mizuk, Y. Yusa, P. Wang, L. Li Gioi, S. Nishida, M. N. Wagner, D. Joffe, A. Garmash, J. Haba, Jochen Dingfelder, M. Steder, S. Korpar, P. Vanhoefer, Yang Li, Y. Choi, X. H. He, K. Miyabayashi, P. Chang, Z. P. Zhang, Jung-Hyun Kim, V. Chekelian, T. Iijima, B.A. Shwartz, N. K. Nisar, T. Hara, L. Santelj, T. Aushev, G. Tatishvili, A. Moll, B. R. Ko, H. Farhat, C. Oswald, A.E. Bondar, Vladimir Zhulanov, T. Ferber, J. G. Shiu, T. Kawasaki, P. Pakhlov, M. J. Kim, Y. M. Goh, V.E. Shebalin, M. E. Sevior, I. S. Lee, S. Okuno, E. Ribežl, M. Ritter, S. Al Said, M. Starič, T. Sanuki, I. Jaegle, T. K. Pedlar, C. Kiesling, Z. Doležal, X. L. Wang, K. Inami, Y. S. Sohn, J. S. Lange, H. Park, D. Santel, Y. Teramoto, S. Sandilya, Y. Unno, Yongsun Kim, S. Uno, C. Schwanda, R. Ayad, K. Senyo, M. Bračko, A. J. Schwartz, J. Libby, R. Gillard, S. K. Choi, H. Hayashii, Vikas Bansal, E. Nakano, Marko Petrič, Z. Drásal, G. Bonvicini, B. Bhuyan, H. J. Hyun, S. Uehara, A.L. Sibidanov, A. M. Bakich, K. Kinoshita, W. S. Hou, U. Tamponi, A. Vinokurova, A. Abdesselam, V. Gaur, M. Nakao, Z. Natkaniec, C. Van Hulse, T. E. Browder, Y. Iwasaki, S. H. Kim, P. Krokovny, D. Y. Kim, D. Matvienko, J. Yamaoka, K. H. Kang, K. Cho, A. Bobrov, D. M. Asner, O. Schneider, V. Savinov, H. J. Kim, James E. Fast, N. Gabyshev, D. Červenkov, Tara Nanut, L. E. Piilonen, I. Adachi, Y. Yook, G. Pakhlova, T. Uglov, T. A. Shibata, Mikhail Danilov, H. Miyata, K. Chilikin, S.I. Eidelman, A. Drutskoy, J. B. Kim, S. Yashchenko, K. Hayasaka, T. Julius, A. Kuzmin, S. Ogawa, S. L. Olsen, K. Trabelsi, T. Mori, H. Aihara, M. Watanabe, Y. Watanabe, Frank Simon, Y.-P. Yang, Y. Sakai, E. Solovieva, P.A. Lukin, G. Schnell, J. Dalseno, and E. Kato
Subjects: Physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, Pi, Sigma, Relative phase, 010306 general physics, 01 natural sciences, Spectral line, Bar (unit)
Abstract: We report new measurements of the total cross sections for e(+)e(-) -> Upsilon(nS)pi(+)pi(-) (n = 1, 2, 3) and e(+)e(-) -> b (b) over bar from a high-luminosity fine scan of the region root s = 10.63-11.05 GeV with the Belle detector. We observe that the Upsilon(nS)pi(+)pi(-) spectra have little or no nonresonant component and extract from them the masses and widths of Upsilon(10860) and Upsilon(11020) and their relative phase. We find M-10860 = (10891.1 +/- 3.2(-1.7)(+0.6)) MeV/c(2) and Gamma(10860) = (53.7(-5.6)(-5.4)(+7.1)(+1.3)) MeV and report first measurements M-11020 = (1098(-2.5)(-2.1)(+6.4)(+9.0)) MeV/c(2), Gamma(11020) = (61(-19)(-20)(+9)(+2)) MeV, and phi(11020) - phi 10860 = (-1.0 +/- 0.4(-0.1)(+1.4)) rad.
Published: 2016

30. Observation ofB0→pΛ¯D(*)−

Author: Y. Choi, L. Santelj, L. K. Li, V. Chobanova, J. Dalseno, D. Liventsev, L. E. Piilonen, G. Pakhlova, J. G. Shiu, H. Sahoo, Tara Nanut, T. Uglov, G. S. Varner, P.A. Lukin, J. Rauch, J. Libby, S. Yashchenko, A. Zupanc, R. Glattauer, R. Itoh, A. Rostomyan, Y. M. Goh, M. Sumihama, P. Wang, A. Abdesselam, A. M. Bakich, R. Chistov, X. H. He, Y. Seino, V. Babu, T. Aushev, J. Stypula, Y. B. Li, T. Ferber, N. Gabyshev, D. Červenkov, M. Z. Wang, K. Kinoshita, E. L. Barberio, E. Nakano, J. Yamaoka, Y. Yusa, M. E. Sevior, I. S. Lee, D. Cinabro, G. Schnell, T. Iijima, Y. Sakai, S. Eidelman, P. Pakhlov, K. Chilikin, Y. J. Kim, H. Ozaki, M. Masuda, G. B. Mohanty, K. Adamczyk, T. Sumiyoshi, S. Ogawa, T.-A. Shibata, K. Tanida, A. Bozek, Jung-Hyun Kim, W. S. Hou, T. Kuhr, Martin Ritter, B. Bhuyan, T. Sanuki, R. Pestotnik, B. G. Cheon, Dipanwita Dutta, Hirokazu Miyake, R. Mizuk, Y. Watanabe, B. G. Fulsom, T. E. Browder, Alexei Kuzmin, A. Chen, Y. Unno, E. Ribežl, V. Savinov, K. Inami, M. Danilov, K. Senyo, C. P. Shen, Z. Drásal, I. Adachi, S. Korpar, Ihn Sik Seong, K. K. Joo, M. Bračko, T. Kawasaki, Seok Kim, V. Vorobyev, S. Nishida, V. Chekelian, C.-L. Hsu, Y. Teramoto, K. M. Williams, John Yelton, Z. Doležal, H. Hayashii, Hyunyong Kim, B. K. Pal, J. Haba, W. W. Jacobs, Sunmin Ryu, K. T. Kim, C. W. Park, E. Won, T. Mori, H. Aihara, R. Gillard, S. K. Choi, Y. Usov, H. Atmacan, Z. P. Zhang, P. Goldenzweig, P. Vanhoefer, S. Sandilya, M. J. Kim, M. Starič, H. Farhat, Jyoti Prakash Biswal, J. B. Kim, T. Kumita, V. Gaur, Y. S. Sohn, M. Nakao, V.N. Zhilich, H. K. Moon, Y. Iwasaki, I. Jaegle, K. Miyabayashi, Y. J. Kwon, I. Badhrees, O. Schneider, K. Sumisawa, D. M. Asner, D. Joffe, A. Vossen, Frank Simon, Y.-T. Lai, M. Nayak, S. Al Said, J. E. Fast, S. Uno, C. Schwanda, Sanmay Ganguly, V.E. Shebalin, M. Watanabe, M. N. Wagner, J. C. Dingfelder, Marko Petrič, U. Tamponi, D. Matvienko, O. Grzymkowska, C. H. Wang, C. B. Van Hulse, V. V. Zhulanov, Yu Kai Chang, D. Y. Kim, A. Ishikawa, P. Križan, H. Miyata, A. Garmash, P. Krokovny, K. Hayasaka, A. Bobrov, Daniel Greenwald, Soumya D. Mohanty, T. K. Pedlar, and A. Moll
Subjects: Physics, Combinatorics, KEKB, 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, 010306 general physics, 01 natural sciences
Abstract: We report the first observation of the decays ${B}^{0}\ensuremath{\rightarrow}p\overline{\mathrm{\ensuremath{\Lambda}}}{D}^{(*)\ensuremath{-}}$. The data sample of $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ used in this analysis corresponds to $772\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs, collected at the $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance by the Belle detector at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. We observe $19.8\ensuremath{\sigma}$ and $10.8\ensuremath{\sigma}$ excesses of events for the two decay modes and measure the branching fractions of ${B}^{0}\ensuremath{\rightarrow}p\overline{\mathrm{\ensuremath{\Lambda}}}{D}^{\ensuremath{-}}$ and ${B}^{0}\ensuremath{\rightarrow}p\overline{\mathrm{\ensuremath{\Lambda}}}{D}^{*\ensuremath{-}}$ to be $(25.1\ifmmode\pm\else\textpm\fi{}2.6\ifmmode\pm\else\textpm\fi{}3.5)\ifmmode\times\else\texttimes\fi{}1{0}^{\ensuremath{-}6}$ and $(33.6\ifmmode\pm\else\textpm\fi{}6.3\ifmmode\pm\else\textpm\fi{}4.4)\ifmmode\times\else\texttimes\fi{}1{0}^{\ensuremath{-}6}$, respectively, where the first uncertainties are statistical and the second are systematic. These results are not compatible with the predictions based on the generalized factorization approach. In addition, a threshold enhancement in the dibaryon ($p\overline{\mathrm{\ensuremath{\Lambda}}}$) system is observed, consistent with that observed in similar $B$ decays.
Published: 2015

31. Inclusive cross sections for pairs of identified light charged hadrons and for single protons ine+e−ats=10.58 GeV

Author: S. Al Said, F. Giordano, G. Pakhlova, H. Sahoo, H. Farhat, K. Inami, J. Libby, Z. P. Zhang, Hirokazu Miyake, Y. Iwasaki, Y. J. Kwon, R. Mizuk, Y. Yusa, R. Seidl, Saraju P. Mohanty, A. Moll, D. Joffe, C. L. Hsu, I. Adachi, J. G. Shiu, B. Pal, X. H. He, Y. Seino, V. Babu, M. Z. Wang, U. Tamponi, H. Hayashii, T. Iijima, Hiroaki Aihara, Y. S. Sohn, O. Schneider, Y. Watanabe, L. Li Gioi, I. Badhrees, I. Jaegle, Yongsun Kim, D. Cinabro, J. B. Kim, J. Yamaoka, R. Mussa, A.S. Kuzmin, H. J. Kim, M. Ritter, T. Uglov, Jyoti Prakash Biswal, C. H. Wang, S. Uno, C. Schwanda, K. Senyo, Jung-Hyun Kim, R. Ayad, A. Ishikawa, E. Nakano, A. Abdesselam, V. Gaur, T. A. Shibata, H. Miyata, S.I. Eidelman, W. S. Hou, T. Sumiyoshi, K. Chilikin, C. W. Park, D. Y. Kim, S. Okuno, M. J. Kim, M. Nakao, Jochen Dingfelder, S. H. Kim, P. Krokovny, C. Van Hulse, Y. Choi, N. K. Nisar, E. Ribežl, T. Hara, P. Križan, L. Santelj, John Yelton, Z. Doležal, M. Starič, T. Sanuki, Dipanwita Dutta, K. Hayasaka, K. H. Kang, K. Cho, L. E. Piilonen, A. Garmash, V. Vorobyev, A. M. Bakich, Z. Natkaniec, S. Ogawa, B. G. Cheon, J. Haba, M. Masuda, Y. Teramoto, M. Watanabe, Y. M. Goh, P. Lukin, Yueh-Feng Liu, Andrey Sokolov, J. Dalseno, S. Yashchenko, K. T. Kim, E. L. Barberio, A. Vossen, T. K. Pedlar, D. Liventsev, R. Gillard, S. Sandilya, E. Kato, Vladimir Zhulanov, Sunmin Ryu, R. Pestotnik, M. E. Sevior, P. Goldenzweig, K. K. Joo, E. Won, T. Aushev, James E. Fast, Z. Drásal, T. Mori, M. Niiyama, M. Sumihama, K. Sumisawa, L. Li, Marko Petrič, V.E. Shebalin, N. Gabyshev, D. Červenkov, K. Sakai, O. Seon, Frank Simon, P. Vanhoefer, Y. Usov, T. Nanut, T. Ferber, M. Nayak, Peter Kodys, D. Matvienko, W. W. Jacobs, P. Katrenko, B. Golob, H. K. Moon, J. S. Lange, N. Dash, V. Bhardwaj, D. M. Asner, Samo Korpar, Y. Sakai, G. Schnell, E. Solovieva, Yoshinobu Unno, K. M. Williams, A. Chen, V. Trusov, D. H. Lee, M. Bračko, C. Oswald, T. Kawasaki, M. Uchida, V. Chobanova, G. S. Varner, R. Itoh, P. Wang, M. N. Wagner, B. G. Fulsom, V.N. Zhilich, K. Miyabayashi, B. Bhuyan, T. E. Browder, V. Savinov, S. Nishida, A. Rostomyan, V. Chekelian, P. Pakhlov, H. Park, and A. Bozek
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, Nuclear Theory, Hadron, 01 natural sciences, Nuclear physics, KEKB, Pion, Fragmentation (mass spectrometry), 0103 physical sciences, Fragmentation function, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We report the first double differential cross sections of two charged pions and kaons (e(+)e(-) -> hhX) in electron-positron annihilation as a function of the fractional energies of the two hadrons for any charge and hadron combination. The dependence of these dihadron cross sections on the topology (same, opposite hemisphere or anywhere) is also studied with the help of the event shape variable thrust and its axis. The ratios of these dihadron cross sections for different charges and hadron combinations directly shed light on the contributing fragmentation functions. For example, we find that the ratio of same-sign pion pairs over opposite-sign pion pairs drops toward higher fractional energies where disfavored fragmentation is expected to be suppressed. These dihadron results are obtained from a 655 fb(-1) data sample collected near the gamma (4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Extending the previously published single-pion and single-kaon cross sections, single-proton (e(+)e(-) -> pX) cross sections are extracted from a 159 fb(-1) data subsample.
Published: 2015

32. Measurement of the branching ratio ofB¯→D()τ−ν¯τrelative toB¯→D()ℓ−ν¯ℓdecays with hadronic tagging at Belle

Author: Andrey Sokolov, K. Arinstein, B. Bhuyan, Jyoti Prakash Biswal, James E. Fast, Yuki Sato, Y. Yook, T. Keck, A. Abdesselam, S. Yashchenko, V. Gaur, S. Uno, T. E. Browder, K. Trabelsi, P.A. Lukin, T. Julius, Z. Drásal, D. Cinabro, V.E. Shebalin, C. P. Shen, V.N. Zhilich, S. Al Said, C. Pulvermacher, R. Mussa, A. Ishikawa, M. Nakao, C. W. Park, P. Križan, V. Trusov, A. Vinokurova, S. H. Kim, J. Hasenbusch, G. Inguglia, P. Chang, G. Schnell, T. Iijima, A. Bobrov, R. Chistov, Saraju P. Mohanty, Peter Kodys, P. Katrenko, P. Krokovny, K. H. Kang, K. Cho, E. L. Barberio, H. J. Kim, A. Zupanc, Jung-Hyun Kim, A. Frey, S. Sandilya, V. Savinov, Yongsun Kim, Mikhail Danilov, H. Miyake, C. Schwanda, M. J. Kim, T. Aushev, D. A. Epifanov, S. Nishida, B. R. Ko, K. Chilikin, T. Kuhr, K. Hara, Byung Gu Cheon, I. Jaegle, K. Miyabayashi, I. Badhrees, Z. P. Zhang, S. Okuno, T. Ferber, B. Pal, C. Oswald, T. K. Pedlar, M. Heck, E. Kato, X. H. He, A. Moll, M. Sumihama, A. Heller, G. Pakhlova, E. Ribežl, T. Kawasaki, E. Won, C. H. Wang, R. Pestotnik, M. Starič, J. Stypula, K. Senyo, H. Yamamoto, M. Uchida, Y. Teramoto, Vikas Bansal, C. Kiesling, V. Chekelian, M. Huschle, C. Z. Yuan, T. Kumita, V. Chobanova, K. Adamczyk, Marko Petrič, E. Nakano, J. Yamaoka, M. Watanabe, Y. Watanabe, D. Semmler, K. K. Joo, H. Farhat, P. Hamer, J. Libby, P. Vanhoefer, L. Li Gioi, H. Ye, A. Garmash, C. H. Li, T. A. Shibata, G. S. Varner, D. Liventsev, C. Van Hulse, M. Bračko, A. Chen, R. Glattauer, C. L. Hsu, G. B. Mohanty, T. Hara, H. Miyata, E. Solovieva, H. Aihara, D. Matvienko, Y. Usov, R. Ayad, Vladimir Zhulanov, A. Rostomyan, Y. Iwasaki, R. Mizuk, Y. Yusa, Y. J. Kwon, M. Steder, S.I. Eidelman, Tsuyoshi Horiguchi, P. Wang, M. N. Wagner, B. G. Fulsom, K. Nakamura, Dipanwita Dutta, D. Joffe, D. M. Asner, D. Y. Kim, M. E. Sevior, I. S. Lee, O. Schneider, W. S. Hou, Y. S. Sohn, H. Park, K. T. Kim, A. Bozek, Tariq Aziz, I. Adachi, P. Goldenzweig, R. Gillard, O. Seon, Frank Simon, A. J. Schwartz, T. Sumiyoshi, K. Hayasaka, Yang Li, Y. Choi, J. B. Kim, N. K. Nisar, L. Santelj, V. Bhardwaj, V. Vorobyev, M. Heider, Samo Stanič, Y. Sakai, L. Pesántez, Y. M. Goh, T. Sanuki, A. M. Bakich, N. Gabyshev, D. Červenkov, J. Grygier, B. Golob, H. K. Moon, M. Nayak, Z. Doležal, X. L. Wang, M. Masuda, Nagao Kobayashi, Tara Nanut, T. Uglov, A. Kuzmin, S. Ogawa, J. G. Shiu, J. Dalseno, H. Hayashii, M. Ritter, K. Inami, M. Z. Wang, K. Kinoshita, U. Tamponi, R. Itoh, S. Korpar, and L. E. Piilonen
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, High Energy Physics::Phenomenology, Hadron, Resonance, 01 natural sciences, Nuclear physics, KEKB, 0103 physical sciences, High Energy Physics::Experiment, B meson, Leptoquark, 010306 general physics, Bar (unit)
Abstract: We report a measurement of the branching fraction ratios R(D)(()*()) of (B) over bar -> D-(*())tau(-)(nu) over bar (tau) relative to (B) over bar -> D-(*())l(-)(nu) over barl (where l = e or mu) using the full Belle 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. The measured values are R(D) = 0.375 +/- 0.064(stat) +/- 0.026(syst) and R(D*) = 0.293 +/- 0.038 (stat) +/- 0.015 (syst). The analysis uses hadronic reconstruction of the tag-side B meson and purely leptonic t decays. The results are consistent with earlier measurements and do not show a significant deviation from the standard model prediction.
Published: 2015

33. First Observation of the Hadronic Transitionϒ(4S)→ηhb(1P)and New Measurement of thehb(1P)andηb(1S)Parameters

Author: K. T. Kim, R. Gillard, S. K. Choi, A.E. Bondar, Kiyoshi Tanida, Z. Doležal, X. L. Wang, G. Schnell, T. Iijima, E. Nakano, C. Van Hulse, A. Zupanc, B. Pal, X. H. He, A. Drutskoy, Byung Gu Cheon, J. Stypula, K. Senyo, Z. Drásal, K. Trabelsi, C. Schwanda, Y. Watanabe, C. P. Shen, M. T. Hedges, T. Aushev, S. Uno, T. Ferber, G. Bonvicini, Jyoti Prakash Biswal, C. Oswald, Mikhail Danilov, M. Shapkin, A. Vinokurova, M. Uchida, E. L. Barberio, A. Abdesselam, V.E. Shebalin, V. Chobanova, T. A. Shibata, H. Miyata, S. H. Kim, P. Krokovny, V. Gaur, E. Kato, S.I. Eidelman, K. Cho, B. Golob, Marko Petrič, A.L. Sibidanov, K. Hayasaka, G. S. Varner, J. S. Lange, R. Pestotnik, B. Bhuyan, H. J. Kim, V.N. Zhilich, R. Mussa, Yuki Sato, K. Arinstein, T. E. Browder, D. Matvienko, T. K. Pedlar, G. B. Mohanty, A. Moll, W. S. Hou, D. Getzkow, I. Jaegle, G. Pakhlova, R. Mizuk, K. Miyabayashi, I. Badhrees, A. Rostomyan, Z. P. Zhang, R. Ayad, K. M. Williams, D. M. Asner, D. Joffe, A. Ishikawa, A. Chen, M. Nakao, V. Savinov, D. Semmler, S. Korpar, M. N. Wagner, B. G. Fulsom, P. Križan, A. Kuzmin, M. Z. Wang, K. Kinoshita, U. Tamponi, H. Farhat, M. Starič, D. Y. Kim, Y. Choi, T. Kumita, L. Pesántez, J. G. Shiu, T. Sanuki, L. E. Piilonen, S. Ogawa, Peter Kodys, P. Katrenko, N. K. Nisar, L. Santelj, Sunmin Ryu, E. Won, S. L. Olsen, Philip Lewis, Phillip Urquijo, M. Ritter, W. Ostrowicz, H. Park, A. Bozek, Y. Sakai, Y. S. Sohn, Y. M. Goh, A. Garmash, S. Yashchenko, T. Mori, H. Aihara, P. Vanhoefer, T. Julius, O. Schneider, H. Hayashii, Andrey Sokolov, M. Steder, C. Kiesling, J. Yamaoka, M. Bračko, James E. Fast, K. Inami, Tara Nanut, A. M. Bakich, Z. Natkaniec, T. Uglov, H. Atmacan, N. Gabyshev, D. Červenkov, Y. Unno, V. Bhardwaj, B.A. Shwartz, Vladimir Zhulanov, M. E. Sevior, A. Vossen, J. Haba, Frank Simon, H. Kichimi, M. Nayak, S. Sandilya, S. Nishida, P.A. Lukin, D. Cinabro, Jung-Hyun Kim, D. A. Epifanov, S. Okuno, E. Ribežl, Y. Teramoto, and J. Libby
Subjects: Physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, Analytical chemistry, General Physics and Astronomy, 01 natural sciences, Belle experiment, KEKB, 0103 physical sciences, Heavy quark effective theory, 010306 general physics, Hyperfine structure
Abstract: Using a sample of 771.6×10(6) ϒϒ(4S) decays collected by the Belle experiment at the KEKB e(+)e(-) collider, we observe, for the first time, the transition ϒ(4S)→ηh(b)(1P) with the branching fraction B[ϒ(4S)→ηh(b)(1P)]=(2.18±0.11±0.18)×10(-3) and we measure the h(b)(1P) mass M(h(b)(1P))=(9899.3±0.4±1.0) MeV/c(2), corresponding to the hyperfine (HF) splitting ΔM(HF)(1P)=(0.6±0.4±1.0) MeV/c(2). Using the transition h(b)(1P)→γη(b)(1S), we measure the η(b)(1S) mass M(η(b)(1S))=(9400.7±1.7±1.6) MeV/c(2), corresponding to ΔM(HF)(1S)=(59.6±1.7±1.6) MeV/c(2), the η(b)(1S) width Γ(η(b)(1S))=(8(-5)(+6)±5) MeV/c(2) and the branching fraction B[h(b)(1P)→γη(b)(1S)]=(56±8±4)%.
Published: 2015

34. Measurement of the branching fraction ofB+→τ+ντdecays with the semileptonic tagging method

Author: P. Lukin, M. Schram, T. E. Browder, R. Ayad, T. K. Pedlar, J. Dalseno, H. Farhat, Phillip Urquijo, M. Ritter, M. Z. Wang, K. Kinoshita, U. Tamponi, A. Garmash, Y. S. Sohn, Tsuyoshi Horiguchi, T. Sumiyoshi, M. Steder, Mikhail Danilov, E. Kato, K. Arinstein, A. Abdesselam, K. T. Kim, Y. Choi, K. Chilikin, Y. Teramoto, R. Mussa, Vikas Bansal, R. Gillard, T. Nanut, T. Ferber, B.A. Shwartz, V. Bhardwaj, R. Itoh, C. Pulvermacher, S. Uno, T. A. Shibata, E. Won, J. Libby, R. Glattauer, S. Yashchenko, T. Julius, R. Chistov, V.E. Shebalin, K. Inami, Yuki Sato, Yoshinobu Unno, J. E. Fast, A. M. Bakich, G. Bonvicini, A. Vinokurova, D. Liventsev, Vladimir Zhulanov, M. E. Sevior, I. S. Lee, P. Križan, H. Miyata, V. Chobanova, M. Bračko, C. Van Hulse, D. Matvienko, D. Getzkow, S. H. Kim, T. Uglov, P. Goldenzweig, B. Kronenbitter, W. Ostrowicz, M. J. Kim, E. Solovieva, R. Pestotnik, P. Krokovny, T. Kuhr, G. Pakhlova, K. H. Kang, A.L. Sibidanov, V. Savinov, Andrey Sokolov, Peter Kodys, K. Senyo, I. Adachi, G. B. Mohanty, D. M. Asner, V. Gaur, M. Heider, Hiroaki Aihara, M. Nayak, S. Nishida, H. Hayashii, Y. Usov, D. Cinabro, P. Pakhlov, Jochen Dingfelder, R. Mizuk, Sunmin Ryu, Z. DoleŽal, E. Nakano, K. K. Joo, Y. Yook, S. Al Said, Semen Eidelman, A. Moll, M. Petrič, M. Watanabe, T. Aushev, M. Huschle, P. Wang, M. N. Wagner, Jung-Hyun Kim, Y. J. Kwon, Philip Lewis, A. Zupanc, Z. P. Zhang, L. Li Gioi, K. M. Williams, A. Chen, D. A. Epifanov, S. Uehara, Saraju P. Mohanty, B. G. Fulsom, Kyung-Suk Cho, Toru Iijima, Byung Gu Cheon, S. Okuno, D. Y. Kim, O. Schneider, Hitoshi Yamamoto, E. Ribežl, A.E. Bondar, T. Sanuki, Z. Drásal, A. Bozek, Yongsun Kim, A. Ishikawa, C. H. Wang, D. Dutta, P. Vanhoefer, F. Simon, O. Frost, M. Starič, D. H. Lee, Tariq Aziz, C. Schwanda, Z. Natkaniec, Y. Iwasaki, M. Nakao, L. E. Piilonen, V.N. Zhilich, J. G. Shiu, C. Oswald, A. Rostomyan, N. K. Nisar, L. Santelj, M. Heck, B. Golob, V. Chekelian, A.S. Kuzmin, I. Jaegle, H. K. Moon, J. S. Lange, A. Drutskoy, M. Ziegler, A. J. Schwartz, H. J. Kim, K. Trabelsi, B. R. Ko, N. Gabyshev, M. Uchida, G. Schnell, Y. Sakai, G. Varner, Samo Stanič, A. Vossen, O. Seon, H. Park, J. B. Kim, L. Pesántez, S. L. Olsen, Y. Watanabe, J. Grygier, A. Heller, X. H. He, E. L. Barberio, K. Hayasaka, and D. Červenkov
Subjects: Physics, Semileptonic decay, Nuclear and High Energy Physics, Particle physics, Branching fraction, Electron–positron annihilation, Resonance, Standard Model, law.invention, Nuclear physics, KEKB, law, High Energy Physics::Experiment, B meson, Collider
Abstract: We report a measurement of the branching fraction of B+ -> tau(+) nu(tau) 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 reconstruct the accompanying B meson in a semileptonic decay and detect the recoiling B candidate in the decay channel B+ -> tau(+) nu(tau). We obtain a branching fraction of B(B+ -> tau(+) nu(tau)) = [1.25 +/- 0.28(stat.) +/- 0.27(syst.)] x 10-(4). This result is in good agreement with previous measurements and the expectation from the calculation based on the Standard Model.
Published: 2015

35. First Observation ofCPViolation inB¯0→DCP(*)h0Decays by a Combined Time-Dependent Analysis ofBABARand Belle Data

Author: P. Lukin, B. R. Ko, J. L. Ritchie, S. I. Serednyakov, G. Schnell, T. Iijima, R. Y. So, B. N. Ratcliff, T. K. Pedlar, Maria Roberta Monge, J. A. McKenna, Mauro Morandin, E. Paoloni, R. Andreassen, T. Kuhr, Andrey Sokolov, V. Bhardwaj, R. F. Schwitters, M. Sumihama, C. H. Chen, S. M. Spanier, A. Adametz, P. Taras, M. Gaspero, O. Seon, Frank Simon, Vladimir Blinov, J. P. Coleman, T. Sumiyoshi, M. J. Lee, J. Dalseno, K. T. Kim, R. Sacco, C. Bünger, V. Prasad, M. Ebert, U. Uwer, R. Gillard, T. S. Mattison, James E. Fast, T. Sanuki, Matteo Rama, James G. Smith, S. Prell, S. K. Choi, L. E. Piilonen, James H Cochran, V. Poireau, Maurizio Biasini, R. Godang, A. Jawahery, L. Pesántez, S. Ogawa, Douglas Wright, I. M. Peruzzi, D. Getzkow, G. Pakhlova, V. P. Druzhinin, E. Solovieva, A. M. Rossi, T. Hara, N. Tasneem, T. M. Hong, K. Sumisawa, P. C. Bloom, Roger Barlow, Martino Margoni, G. Cibinetto, S. Uno, J. G. Shiu, S. Al Said, C. Hast, D. J. Lange, G. Piredda, G. De Nardo, G. Bonvicini, R. Faccini, F. Ferrarotto, A. J. Lankford, F. Le Diberder, J. D. Richman, B. Malaescu, F. Bianchi, P. Pakhlov, K. M. Williams, A. Chen, R. Cenci, Aidan Randle-Conde, W. S. Hou, B. Hamilton, M. Franco Sevilla, G. R. Bonneaud, Giulia Casarosa, G. Wormser, W. Panduro Vazquez, M. Feindt, A. Vinokurova, M. Röhrken, S. Luitz, S. Dittrich, Joseph Izen, A. Roodman, L. Piemontese, P. Ongmongkolkul, Z. C. Huard, E. Fioravanti, T. Pulliam, Roland Waldi, J. Ocariz, S. Yashchenko, B. Spaan, H. Briand, T. Julius, W. Gradl, J. W. Gary, H. W. Wulsin, A. Drutskoy, Y. Onuki, U. Mallik, T. Schroeder, S. Okuno, E. Ribežl, A. Zallo, M. Hess, S. Nishida, L. Lanceri, R. Chistov, E. Nakano, C. Van Hulse, Owen Rosser Long, A. Seiden, M. Masuda, V. Babu, F. Ferroni, Pu Wang, D. J. Bard, A. Oyanguren, L. Li Gioi, Z. Drásal, Gabriele Simi, C. H. Wang, A.E. Bondar, W. Dunwoodie, H. Park, Yongsun Kim, H. Farhat, Jochen Dingfelder, R. Cheaib, R. C. Field, S. H. Kim, P. Krokovny, E. Gabathuler, W. R. Innes, F. C. Porter, S.E. Vahsen, Timothy Gershon, Rakesh Kumar, A. Bozek, G. A. Cowan, G. Finocchiaro, V. Luth, A. Zupanc, G. Rizzo, W. T. Ford, C. Schwanda, Tim Adye, R. D. Kass, J. A. Ernst, Bruce Schumm, Y. J. Kwon, A. M. Lutz, C. L. Davis, G. B. Mohanty, Paul Fraser Harrison, V.M. Aulchenko, C. Touramanis, Z. P. Zhang, E. L. Barberio, Alberto Lusiani, P. M. Patel, T. Nanut, K. Trabelsi, T. Tsuboyama, W. J. Wisniewski, O. Schneider, K. H. Kang, K. Cho, C. Voß, D. N. Brown, Z. Doležal, M. S. Alam, Stephen Robert Wagner, Christopher West, M. Nayak, V. Vorobyev, F. Anulli, C. P. Shen, D. Su, R. Stroili, R. Mizuk, Y. Yusa, A. Snyder, R. Calabrese, Dipanwita Dutta, Alessandro Gaz, Marcello Rotondo, S. H. Robertson, D. H. Lee, A. P. Onuchin, L. Sun, S. Martellotti, M. Carpinelli, Marcin Chrzaszcz, J. M. LoSecco, M. Fritsch, Elisa Manoni, B. G. Pushpawela, T. Leddig, S. Passaggio, M. Piccolo, B. Pal, H. R. Band, D. Joffe, F. Simonetto, Y. Teramoto, B. G. Cheon, C. Cartaro, Biplab Dey, Y. B. Hsiung, H. H. F. Choi, S. Playfer, R. H. Schindler, X. H. He, L. M. Cremaldi, A.S. Kuzmin, R. Cowan, Herbert Koch, A. Calcaterra, W. S. Lockman, S. Emery, Fergus Wilson, M. Shapkin, M. Z. Wang, K. Kinoshita, U. Tamponi, Andrei Gritsan, A. Rostomyan, K. Yu. Todyshev, Yu. I. Skovpen, Y. Watanabe, Hiroaki Aihara, G. Batignani, I. M. Nugent, M. T. Graham, T. Aushev, V. B. Golubev, J. Yamaoka, J. Chauveau, F. De Mori, A. Moll, Marko Petrič, T. Uglov, E. P. Solodov, Adrian John Bevan, Dmytro Kovalskyi, K. Chilikin, M. R. Convery, K. Griessinger, V. Chekelian, B. Oberhof, P. Lewis, F. Di Lodovico, T. S. Miyashita, D. S. Chao, Heiko Lacker, J. P. Lees, A. Garmash, A. Palano, Eleonora Luppi, I. Adachi, G. J. King, M. J. Lewczuk, C. C. Zhang, Alessandro Pilloni, Denis Bernard, D. J. Payne, M. Davier, Vladimir Zhulanov, K. Arinstein, T. Ferber, R. Itoh, Brian Meadows, C. Z. Yuan, T. A. Shibata, H. Miyata, E. Ben-Haim, M. E. Sevior, I. S. Lee, E. A. Kravchenko, D. Cinabro, N. K. Nisar, L. Santelj, D. R. Peimer, P. Goldenzweig, D. G. Hitlin, Peter S. Kim, H. A. Neal, J. Dorfan, P. Roudeau, S.I. Eidelman, V.E. Shebalin, David Hutchcroft, K. R. Schubert, I. Jaegle, W. Ostrowicz, X. C. Lou, Jyoti Prakash Biswal, Crisostomo Sciacca, D. Aston, M. Starič, F. Palombo, B. Bhuyan, J. Va’vra, S. Korpar, Y. S. Sohn, R. Contri, K. K. Joo, C. Hearty, Y. Sakai, D. Matvienko, G. Inguglia, E. Won, J. B. Kim, A. M. Bakich, Sw. Banerjee, V. Santoro, Y. M. Goh, B. G. Fulsom, Yuki Sato, K. Hayasaka, D. Gamba, Nicola Neri, T. E. Browder, D. W. G. S. Leith, D. J. Summers, P. Chang, H. Nakazawa, P. Patteri, R. Pestotnik, D. M. Asner, M. Verderi, Ph Leruste, S. Sandilya, A. Abdesselam, M. Bomben, R. J. Sobie, N. Arnaud, A. R. Buzykaev, L. Vitale, A. Bobrov, N. Guttman, F. Martinez-Vidal, J. Haba, Dominik Müller, N. Gabyshev, D. Červenkov, A. Beaulieu, V. Gaur, A. J. Schwartz, B. Stugu, Hitoshi Yamamoto, Jung-Hyun Kim, G. Calderini, H. Ahmed, Yoshinobu Unno, K. Senyo, V. Savinov, E. Grauges, P. Vanhoefer, J. M. Roney, G. Lynch, D. Bettoni, B. Echenard, M. K. Sullivan, A. G. Denig, Corrado Angelini, Stephen Sekula, Mario Giorgi, C. Kiesling, G. Marchiori, Y. Iwasaki, D. Lopes Pegna, I. Garzia, A. Khan, Y. B. Pan, R. Kowalewski, Thomas Latham, C. Patrignani, V. Tisserand, M. Bračko, C. Bozzi, S. Bettarini, J. J. Walsh, Sridhara Dasu, Peter Kodys, K. Honscheid, George Lafferty, E. O. Olaiya, J. Libby, B. Golob, Florian Urs Bernlochner, T. Lueck, R. Glattauer, A. Stocchi, G. P. Dubois-Felsmann, James D. Olsen, H. K. Moon, R. Ayad, M. Posocco, Yu. G. Kolomensky, L. T. Kerth, M. Bellis, V.N. Zhilich, Colin Jessop, R. Prepost, Denis Derkach, H. Hayashii, Oliver Grünberg, F. Forti, Y. Usov, A. J.S. Smith, K. Miyabayashi, Seema Bahinipati, James R. Wilson, I. Badhrees, R. Mussa, G. Vasseur, Simon Akar, G. Onorato, A. Ishikawa, A. Filippi, K. T. Flood, M. Nakao, C. W. Park, P. Križan, G. Raven, M. D. Sokoloff, P. R. Burchat, D. Y. Kim, R. Gorodeisky, M. Simard, D. A. Roberts, G. Grosdidier, A. Hafner, E. M. T. Puccio, G. Eigen, D. B. MacFarlane, A. M. Eisner, M. V. Purohit, J. Albert, T. Kawasaki, M. Uchida, V. Chobanova, J. R. Fry, C. H. Cheng, G. S. Varner, R. de Sangro, S. L. Wu, W. H. Toki, M. N. Wagner, and Abner Soffer
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, media_common.quotation_subject, Hadron, General Physics and Astronomy, 01 natural sciences, Omega, Asymmetry, B-factory, Nuclear physics, KEKB, 0103 physical sciences, D meson, CP violation, 010306 general physics, media_common
Abstract: We report a measurement of the time-dependent CP asymmetry of B0->D(*)CP h0 decays, where the light neutral hadron h0 is a pi0, eta or omega meson, and the neutral D meson is reconstructed in the CP eigenstates K+ K-, K0S pi0 or K0S omega. The measurement is performed combining the final data samples collected at the Y(4S) resonance by the BaBar and Belle experiments at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain ( 471 +/- 3 ) x 10^6 BB pairs recorded by the BaBar detector and ( 772 +/- 11 ) x 10^6, BB pairs recorded by the Belle detector. We measure the CP asymmetry parameters -eta_f S = +0.66 +/- 0.10 (stat.) +/- 0.06 (syst.) and C = -0.02 +/- 0.07 (stat.) +/- 0.03 (syst.). These results correspond to the first observation of CP violation in B0->D(*)CP h0 decays. The hypothesis of no mixing-induced CP violation is excluded in these decays at the level of 5.4 standard deviations.
Published: 2015

36. Publisher’s Note: Measurements ofB→D¯Ds0+(2317)decay rates and a search for isospin partners of theDs0+(2317)[Phys. Rev. D91, 092011 (2015)]

Author: K. Chilikin, Y. J. Kim, A. Zupanc, J. Libby, R. Glattauer, K. Tanida, R. Pestotnik, V.E. Shebalin, X. H. He, B. H. Kim, S. Korpar, Y. Watanabe, I. Adachi, G. Bonvicini, C. P. Shen, L. Li Gioi, Yukinori Sato, J. G. Shiu, Peter Kodys, P. Katrenko, Seok Kim, S. Okuno, E. Ribežl, A. Vinokurova, E. Nakano, A. Chen, Phillip Urquijo, L. E. Piilonen, S. Nishida, G. Pakhlova, V. Trusov, Byeong Rok Ko, V. Gaur, S. Yashchenko, T. Julius, R. Chistov, Y. Choi, P. Krokovny, Y. Teramoto, Hui Li, A. Rostomyan, H. Hayashii, X. L. Wang, Hyunyong Kim, D. Getzkow, C. B. Van Hulse, M. Nakao, T. Hara, L. Santelj, J. Dalseno, Z. Drásal, K. H. Kang, K. Cho, K. M. Williams, G. Schnell, T. Iijima, T. Horiguchi, S. Uno, C. Schwanda, V. Babu, T. Aushev, S. Sandilya, A. Kuzmin, J. Haba, S. Eidelman, P. Pakhlov, Y. M. Goh, J. E. Fast, M. Starič, T. Ferber, T.-A. Shibata, Z. Doležal, B. Pal, Dipanwita Dutta, K. Senyo, D. Cinabro, Philip Lewis, T. Kumita, H. Farhat, J. B. Kim, S. Ogawa, A. Garmash, V. Bhardwaj, T. K. Pedlar, T. Kawasaki, Y. Unno, A. Moll, G. Inguglia, S. L. Olsen, H. Park, A. Bozek, W. S. Hou, E. Kato, M. Nayak, R. Ayad, K. Inami, M. Uchida, U. Tamponi, Andrey Sokolov, M. E. Sevior, I. S. Lee, M. Steder, A. Drutskoy, B. Bhuyan, B. G. Fulsom, Jung-Hyun Kim, Z. P. Zhang, M. Z. Wang, T. E. Browder, K. Arinstein, Byung Gu Cheon, V. Chobanova, K. Kinoshita, Y. Iwasaki, Y. J. Kwon, Z. Natkaniec, Y. S. Sohn, V.N. Zhilich, C. H. Wang, G. S. Varner, V. V. Zhulanov, V. Savinov, M. Danilov, V. Vorobyev, T. Uglov, R. Itoh, O. Schneider, I. Jaegle, K. Miyabayashi, I. Badhrees, K. T. Kim, R. Gillard, S. K. Choi, Sunmin Ryu, D. M. Asner, T. Nanut, C. W. Park, E. Won, D. Y. Kim, P. Vanhoefer, R. Mussa, A. Ishikawa, B. Golob, P. Križan, M. Bračko, T. Mori, H. Aihara, P.A. Lukin, Y. Usov, N. K. Nisar, H. K. Moon, Y. Sakai, J. S. Lange, E. Solovieva, D. Joffe, A. Vossen, Frank Simon, A. Abdesselam, Martin Ritter, T. Sanuki, A.L. Sibidanov, E. L. Barberio, Marko Petrič, B. Shwartz, D. Matvienko, M. N. Wagner, H. Miyata, K. Hayasaka, L. Pesántez, G. B. Mohanty, Satoshi Tanaka, R. Mizuk, A. M. Bakich, N. Gabyshev, D. Červenkov, and M. Shapkin
Subjects: Gravitation, Physics, Nuclear and High Energy Physics, Theoretical physics, Quantum mechanics, Isospin, Cosmology
Published: 2015

37. Study ofD**production and light hadronic states in theB¯0→D*+ωπ−decay

Author: Z. DoleŽal, G. Inguglia, G. B. Mohanty, Jung-Hyun Kim, B.A. Shwartz, R. Mizuk, D. Joffe, M. Starič, D. H. Lee, D. A. Epifanov, D. Liventsev, Vladimir Zhulanov, M. E. Sevior, Y. Teramoto, P. Goldenzweig, T. Kawasaki, Jyoti Prakash Biswal, Y. S. Sohn, Y. Watanabe, N. K. Nisar, L. Santelj, D. Getzkow, G. Pakhlova, A.S. Kuzmin, Seema Bahinipati, R. Mussa, E. Won, D. Matvienko, Y. M. Goh, A. Abdesselam, M. Petrič, Jochen Dingfelder, L. Pesántez, O. Seon, A. Drutskoy, I. Adachi, M. Sumihama, H. Miyata, V. Chobanova, L. Li Gioi, A. Garmash, Y. Choi, M. Nayak, S. Nishida, K. M. Williams, T. Ferber, R. Itoh, P. Wang, M. N. Wagner, A. Chen, M. Steder, C. W. Park, H. Park, B. G. Fulsom, S. Uehara, W. S. Hou, S. Korpar, Toru Iijima, C. Pulvermacher, J. B. Kim, E. Ribežl, A. Zupanc, O. Schneider, Z. P. Zhang, V.N. Zhilich, C. P. Shen, V. Vorobyev, K. T. Kim, T. E. Browder, S. Uno, H. Hayashii, K. Hayasaka, J. Dalseno, M. Uchida, V. Bhardwaj, H. Farhat, R. Gillard, I. Jaegle, Phillip Urquijo, K. Miyabayashi, I. Badhrees, Z. Drásal, S. K. Choi, M. Ritter, M. Z. Wang, U. Tamponi, M. J. Kim, J. E. Fast, T. Aushev, T. Hara, K. K. Joo, L. E. Piilonen, D. M. Asner, J. G. Shiu, Y. Usov, V.M. Aulchenko, X. H. He, A. M. Bakich, G. Bonvicini, Hitoshi Yamamoto, P. Vanhoefer, G. Schnell, S. Yashchenko, Y. Sakai, G. Varner, B. Golob, A. Rostomyan, T. Julius, J. S. Lange, S. Sandilya, A.E. Bondar, R. Chistov, T. Nanut, B. R. Ko, N. Gabyshev, J. Libby, Kiyoshi Tanida, Andrey Sokolov, A. Vinokurova, V. Gaur, C. H. Wang, S. H. Kim, Y. Yook, M. Shapkin, Semen Eidelman, Rakesh Kumar, K. Chilikin, R. Pestotnik, D. Červenkov, A. Bozek, S. Ogawa, B. Bhuyan, A. Bobrov, F. Simon, R. Ayad, T. K. Pedlar, Y. Iwasaki, M. Nakao, Vikas Bansal, T. A. Shibata, M. Bračko, C. Van Hulse, Dipanwita Dutta, A. Moll, K. Sumisawa, Kyung-Suk Cho, Byung Gu Cheon, P. Krokovny, T. Sanuki, B. Pal, Hiroaki Aihara, E. Nakano, K. Arinstein, Yoshinobu Unno, Peter Kodys, K. Senyo, V.E. Shebalin, A.L. Sibidanov, S. Al Said, D. Y. Kim, V. Babu, Yongsun Kim, A. Ishikawa, C. Schwanda, and D. Cinabro
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Hadron, Analytical chemistry, 01 natural sciences, Omega, Nuclear physics, Amplitude, KEKB, 0103 physical sciences, High Energy Physics::Experiment, Statistical analysis, 010306 general physics
Abstract: We report on the first observations of (B) over bar (0) -> D-1 (2430)(0)omega, (B) over bar (0) -> D-1 (2420)(0)omega, and (B) over bar (0) -> D-2* (2460)(0)omega decays. The (B) over bar (0) -> D*(+) rho(1450)(-) decay is also observed. The branching fraction measurements are based on (771.6 +/- 10.6) x 10(6) B (B) over bar events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The fractions of longitudinal polarization of the D** states as well as partial wave fractions of the D-1 (2430)(0) are obtained. We also set a 90% confidence level upper limit for the product of branching fractions of B((B) over bar (0) -> D*(+)b(1) (1235)(-)) x B(b(1) (1235)(-) -> omega pi(-)). The measurements show evidence of nontrivial final-state interaction phases for the rho-meson-like amplitudes.
Published: 2015

38. Measurement ofe+e−→γχcJvia initial state radiation at Belle

Author: Z. Doležal, X. L. Wang, G. Schnell, K. T. Kim, R. Gillard, S. K. Choi, T. Iijima, Y. L. Han, D. Getzkow, G. Pakhlova, K. Kinoshita, U. Tamponi, V.E. Shebalin, S. Al Said, S. Uno, D. Cinabro, S. Uehara, O. Schneider, H. Farhat, V. Babu, Yongsun Kim, B. G. Cheon, A. Drutskoy, C. Schwanda, S. H. Kim, P. Krokovny, B.A. Shwartz, Jung-Hyun Kim, K. Cho, Y. Usov, Y. S. Sohn, L. Li Gioi, C. P. Shen, A. Garmash, P. Lukin, B. R. Ko, T. Sanuki, T. Aushev, D. Liventsev, T. K. Pedlar, R. Mussa, C. C. Zhang, A. Moll, T. Ferber, J. G. Shiu, V.N. Zhilich, J. Dalseno, E. Solovieva, Vladimir Zhulanov, T. Horiguchi, A. Ishikawa, M. E. Sevior, M. Ritter, I. Jaegle, K. Miyabayashi, I. Badhrees, S. Okuno, M. Nakao, P. Goldenzweig, E. Ribežl, P. Križan, W. Ostrowicz, K. Senyo, Y. Teramoto, M. Steder, T. A. Shibata, Vikas Bansal, E. Nakano, H. Miyata, J. Libby, S.I. Eidelman, R. Glattauer, C. Van Hulse, Yoshinobu Unno, M. Uchida, V. Chobanova, Dipanwita Dutta, G. S. Varner, P. Wang, H. Kichimi, M. N. Wagner, B. G. Fulsom, M. Nayak, Jyoti Prakash Biswal, K. M. Williams, A. Chen, M. Bračko, A. Abdesselam, Andrey Sokolov, V. Gaur, James E. Fast, Y. Yook, N. Gabyshev, Mikhail Danilov, M. Shapkin, C. Pulvermacher, J. Haba, Z. P. Zhang, A. Zupanc, Peter Kodys, R. Pestotnik, Samo Stanič, S. Nishida, B. Pal, X. H. He, Hiroaki Aihara, C. Z. Yuan, M. Masuda, Marko Petrič, V. Bhardwaj, L. E. Piilonen, D. Matvienko, A. Vossen, S. Yashchenko, Frank Simon, D. M. Asner, Y. Watanabe, R. Chistov, S. Sandilya, M. Sumihama, A. Rostomyan, H. Sahoo, T. Uglov, S. Ogawa, P. Pakhlov, Philip Lewis, H. Park, A. Bozek, D. Y. Kim, I. Adachi, J. B. Kim, H. Hayashii, W. S. Hou, N. K. Nisar, L. Santelj, Y. Sakai, Y. M. Goh, R. Mizuk, D. Joffe, K. K. Joo, K. Hayasaka, P. Vanhoefer, B. Golob, and H. K. Moon
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, State (functional analysis), Radiation, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: The process e(+)e(-) -> gamma chi(cJ) (J = 1, 2) is studied via initial state radiation using 980 fb(-1) of data at and around the Gamma(nS) (n = 1, 2, 3, 4, 5) resonances collected with the Belle detector at the KEKB asymmetricenergy e(+)e(-) collider. No significant signal is observed except from psi(2S) decays. Upper limits on the cross sections between root s = 3.80 and 5.56 GeV are determined at the 90% credibility level, which range from a few pb to a few tens of pb. We also set upper limits on the decay rate of the vector charmonium [psi(4040), psi(4160), and psi(4415)] and charmoniumlike [Y(4260), Y(4360), and Y(4660)] states to gamma chi(cJ).
Published: 2015

39. Evidence for the decayB0→ηπ0

Author: Yang Li, T. Aushev, Y. Choi, L. Santelj, J. G. Shiu, T. Ferber, S. Nishida, J. Dalseno, Y. Sakai, Y. M. Goh, Z. Drásal, L. E. Piilonen, M. Huschle, P. Pakhlov, S. Yashchenko, T. Julius, D. Liventsev, K. T. Kim, R. Gillard, A. Zupanc, D. Getzkow, G. Pakhlova, D. Cinabro, M. Uchida, M. Ritter, E. Kato, K. Sumisawa, G. Schnell, T. Iijima, Vladimir Zhulanov, M. E. Sevior, I. S. Lee, A. Ishikawa, V. Chobanova, A. M. Bakich, Z. Natkaniec, T. Sumiyoshi, T. Sanuki, M. C. Chang, B. Pal, J. Yamaoka, M. Nakao, C. W. Park, P. Križan, N. Gabyshev, D. Červenkov, P. Lukin, B. R. Ko, G. S. Varner, X. H. He, H. Park, A. Bozek, Hiroaki Aihara, T. Kuhr, L. Li Gioi, G. B. Mohanty, A. Drutskoy, T. K. Pedlar, C. Kiesling, P. Wang, Yuki Sato, T. E. Browder, Jung-Hyun Kim, C. Pulvermacher, A. Bobrov, R. Ayad, B. G. Cheon, M. N. Wagner, A. Moll, H. Farhat, B. G. Fulsom, M. Bračko, A. Abdesselam, V. Gaur, M. J. Kim, D. Santel, M. Starič, C. P. Shen, James E. Fast, R. Itoh, Z. Doležal, K. Senyo, T. Kumita, A. Rostomyan, F. Thorne, X. L. Wang, O. Frost, D. H. Lee, V. Chekelian, D. Y. Kim, E. Nakano, Peter Kodys, A. Garmash, S. Uno, A. Chen, M. Shapkin, Samo Stanič, S. Korpar, M. Z. Wang, Y. S. Sohn, G. Bonvicini, B. Golob, K. Kinoshita, U. Tamponi, C. Van Hulse, S. Ogawa, Y. Iwasaki, Y. J. Kwon, K. Nakamura, S. Sandilya, V.N. Zhilich, A. Vinokurova, I. Adachi, H. K. Moon, S. H. Kim, K. Arinstein, S. Uehara, O. Schneider, P. Krokovny, J. S. Lange, J. B. Kim, S. Ganguly, M. Nayak, K. H. Kang, K. Cho, I. Jaegle, T. Hara, I. Badhrees, A.S. Kuzmin, Y. Usov, Marko Petrič, Yoshinobu Unno, T. Nanut, Sunmin Ryu, H. J. Hyun, H. Hayashii, Z. P. Zhang, E. Won, A. Vossen, V.E. Shebalin, A. J. Schwartz, L. Pesántez, O. Grzymkowska, C. H. Wang, S. Al Said, D. Matvienko, O. Seon, Frank Simon, D. Dutta, D. M. Asner, Hitoshi Yamamoto, P. Vanhoefer, W. S. Hou, V. Vorobyev, V. Babu, Yongsun Kim, C. Schwanda, T. A. Shibata, H. Miyata, A.L. Sibidanov, S.I. Eidelman, K. Hayasaka, M. Sumihama, Y. Watanabe, E. Solovieva, V.M. Aulchenko, J. Libby, R. Glattauer, S. Okuno, E. Ribežl, and Y. Teramoto
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, Resonance, Confidence interval, Belle experiment, law.invention, Luminosity, Nuclear physics, KEKB, law, Pi, Collider
Abstract: We report a search for the charmless hadronic decay B-0 -> eta pi(0) with a data sample corresponding to an integrated luminosity of 694 fb(-1) containing 753 x 10(6) BB pairs. The data were collected by the Belle experiment running on the Upsilon(4S) resonance at the KEKB e(+)e(-) collider. We measure a branching fraction B(B-0 > eta pi(0)) = (4.1(-1.5-0.7)(+1.75+0.5)) x 10(-7), where the first unceminty is statistical and the second is systematic. Our measurement gives an upper limit of beta(B-0 -> n pi(0)) < 6.5 x 10(-7) at 90% confidence level. The signal has a significance of 3.0 standard deviations and constitutes the first evidence for this decay mode.
Published: 2015

40. Search forB+→ℓ+νℓγdecays with hadronic tagging using the full Belle data sample

Author: A. Moll, Kyung-Suk Cho, Byung Gu Cheon, M. Z. Wang, K. Kinoshita, U. Tamponi, T. Aushev, R. Ayad, T. K. Pedlar, K. Hayasaka, Y. Choi, P. Krokovny, Y. Teramoto, Z. Drásal, F. Simon, T. Uglov, T. A. Shibata, Y. Yamashita, C. Pulvermacher, M. Bračko, T. Ferber, R. Itoh, D. Y. Kim, V. Babu, Y. J. Kwon, B. Pal, Hiroaki Aihara, A. Bondar, A. Ishikawa, C. Schwanda, J. Stypula, Y. Iwasaki, A. Drutskoy, Andrey Sokolov, C. Van Hulse, A. Zupanc, Z. P. Zhang, M. Nakao, S. Korpar, O. Schneider, E. Nakano, S. Okuno, V. Gaur, L. Pesántez, M. Feindt, E. Won, E. Ribežl, Dipanwita Dutta, S. Uno, S. L. Olsen, K. Trabelsi, T. Kuhr, C. P. Shen, G. Bonvicini, J. Grygier, T. Sanuki, H. Miyata, V. Chobanova, V.E. Shebalin, T. Nanut, A. Vinokurova, K. M. Williams, K. Inami, M. Uchida, Semen Eidelman, A. Chen, S. H. Kim, M. Huschle, T. E. Browder, A.L. Sibidanov, H. Farhat, A. Rostomyan, A. Vossen, H. J. Kim, Mikhail Danilov, M. Shapkin, Phillip Urquijo, M. Ritter, Toru Iijima, D. Matvienko, G. Schnell, L. E. Piilonen, J. G. Shiu, V. Bhardwaj, M. Heider, M. N. Wagner, Y. Sakai, D. M. Asner, G. Varner, R. Mussa, P. Lukin, B. G. Fulsom, T. Kumita, S. Ogawa, M. Petrič, R. Pestotnik, Yoshinobu Unno, P. Križan, J. Libby, I. Adachi, M. Starič, R. Glattauer, J. E. Fast, A. M. Bakich, Philip Lewis, Z. Natkaniec, S. Yashchenko, M. Steder, Peter Kodys, K. Senyo, P. Katrenko, C. Oswald, J. Haba, B. R. Ko, A. Bozek, S. Sandilya, M. Heck, T. Kawasaki, N. Gabyshev, D. Getzkow, G. Pakhlova, D. Cinabro, Z. DoleŽal, V.N. Zhilich, B. Bhuyan, Yuki Sato, I. Jaegle, Jung-Hyun Kim, K. Miyabayashi, I. Badhrees, V. Savinov, M. Nayak, S. Nishida, T. Horiguchi, K. Adamczyk, Jyoti Prakash Biswal, Y. S. Sohn, M. E. Sevior, I. S. Lee, P. Goldenzweig, A. Abdesselam, X. L. Wang, K. T. Kim, R. Gillard, Y. Watanabe, A. Heller, W. S. Hou, K. Arinstein, V. M. Aulchenko, X. H. He, E. L. Barberio, H. Park, Sunmin Ryu, J. B. Kim, B. Shwartz, G. B. Mohanty, R. Mizuk, P. Vanhoefer, D. Joffe, B. Golob, H. K. Moon, J. S. Lange, N. K. Nisar, L. Santelj, A.S. Kuzmin, Y. M. Goh, A. Garmash, E. Kato, and D. Červenkov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, Hadron, Gamma ray, Resonance, 01 natural sciences, law.invention, Nuclear physics, Positron, KEKB, law, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics, Collider
Abstract: We search for the decay B+ -> l(+)nu(l)gamma with l(+) = e(+) or mu(+) using the full Belle data set of 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 reconstruct one B meson in a hadronic decay mode and search for the B+ -> l(+)nu(l)gamma decay in the remainder of the event. We observe no significant signal within the phase space of E-gamma(sig) > 1 GeV and obtain upper limits of B(B+ -> e(+)nu(e)gamma) mu(+)nu(mu)gamma) l(+)nu(l)gamma) < 3.5 x 10(-6) at 90% credibility level.
Published: 2015

41. Measurement ofe+e−→π+π−ψ(2S)via initial state radiation at Belle

Author: R. Gillard, I. Adachi, J. E. Fast, E. Won, H. Park, J. B. Kim, S. K. Choi, K. Kinoshita, U. Tamponi, A. M. Bakich, T. E. Browder, J. Dalseno, H. Farhat, D. Matvienko, P. Krokovny, M. Ritter, S. Sandilya, H. Miyata, Y. Choi, T. Ferber, R. Itoh, V. Chobanova, S. Korpar, Hiroaki Aihara, D. Liventsev, A. Moll, Mikhail Danilov, K. Chilikin, A. Rostomyan, G. Tatishvili, C. Z. Yuan, V.N. Zhilich, E. Nakano, Kyung-Suk Cho, M. Petrič, Byung Gu Cheon, P. Wang, V. Chekelian, K. Arinstein, Kiyoshi Tanida, K. Miyabayashi, R. Pestotnik, M. J. Kim, M. N. Wagner, X. H. He, D. Červenkov, G. Pakhlova, Toru Iijima, Yang Li, D. M. Asner, J. S. Lange, X. L. Wang, N. K. Nisar, L. Santelj, Y. Watanabe, A. Chen, H. Hayashii, Vikas Bansal, T. A. Shibata, M. Starič, W. S. Hou, B. Bhuyan, A.S. Kuzmin, M. Bračko, Y. Teramoto, Z. Drásal, H. J. Kim, T. Uglov, C. Van Hulse, P. Lukin, Y. M. Goh, Yoshinobu Unno, A. Bobrov, A.L. Sibidanov, S. Yashchenko, T. Julius, A. Garmash, T. Kawasaki, S. L. Olsen, R. Ayad, T. K. Pedlar, K. Inami, V. Savinov, Peter Kodys, K. Senyo, E. Kato, Y. J. Kwon, P. Pakhlov, R. Chistov, Philip Lewis, O. Schneider, T. Nanut, L. E. Piilonen, J. G. Shiu, V.E. Shebalin, S. Al Said, Sunmin Ryu, T. Sanuki, D. Y. Kim, D. Getzkow, K. Hayasaka, Yongsun Kim, A. Ishikawa, D. Semmler, C. Schwanda, S. Ogawa, K. Dutta, P. Vanhoefer, L. Li Gioi, R. Mizuk, Y. Yusa, A. Zupanc, Z. P. Zhang, D. Joffe, S. Uno, M. Steder, G. Bonvicini, T. Sumiyoshi, A. Vinokurova, S. H. Kim, Y. S. Sohn, K. H. Kang, A. Abdesselam, E. Solovieva, T. Mori, Y. Usov, A. Drutskoy, K. Trabelsi, C. P. Shen, Z. Natkaniec, B. R. Ko, C. Kiesling, M. Uchida, G. Schnell, Y. Sakai, G. Varner, S. Nishida, J. Haba, I. S. Lee, S. Okuno, E. Ribežl, D. Cinabro, Z. DoleŽal, P. Chang, Jung-Hyun Kim, F. Simon, Y. Iwasaki, M. Nakao, J. Libby, Andrey Sokolov, V. Gaur, Semen Eidelman, R. Mussa, C. W. Park, and P. Križan
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Electron–positron annihilation, Analytical chemistry, State (functional analysis), Radiation, 01 natural sciences, Nuclear magnetic resonance, 0103 physical sciences, Mass spectrum, Pi, Intermediate state, 010306 general physics
Abstract: We report measurement of the cross section of e(+)e(-) -> pi(+)pi(-)psi(2S) between 4.0 and 5.5 GeV, based on an analysis of initial state radiation events in a 980 fb(-1) data sample recorded with the Belle detector. The properties of the Y(4360) and Y(4660) states are determined. Fitting the mass spectrum of pi(+)pi(-)psi(2S) with two coherent Breit-Wigner functions, we find two solutions with identical mass and width but different couplings to electron-positron pairs: M-Y(4360) = (4347 +/- 6 +/- 3) MeV/c(2), Gamma(Y(4360)) = (103 +/- 9 +/- 5) MeV, M-Y(4660) = (4652 +/- 10 +/- 8) MeV/c(2), Gamma(Y(4660)) = (68 +/- 11 +/- 1) MeV; and B[Y(4360) -> pi(+)pi(-)psi(2S)] . Gamma(e+e-)(Y(4360)) = (10.9 +/- 0.6 +/- 0.7) eV and B[Y(4660) -> pi(+)pi(-)psi(2S)] . Gamma(e+e-)(Y(4660)) = (8.1 +/- 1.1 +/- 0.5) eV for one solution; or B[Y(4360) -> pi(+)pi(-)psi(2S)] . Gamma(e+e-)(Y(4360)) = (9.2 +/- 0.6 +/- 0.6) eV and B[Y(4660) -> pi(+)pi(-)psi(2S)] . Gamma(e+e-)(Y(4660)) = (2.0 +/- 0.3 +/- 0.2) eV for the other. Here, the first errors are statistical and the second systematic. Evidence for a charged charmoniumlike structure at 4.05 GeV/c(2) is observed in the pi(+/-)psi(2S) intermediate state in the Y(4360) decays.
Published: 2015

42. Measurements ofB→D¯Ds0+(2317)decay rates and a search for isospin partners of theDs0+(2317)

Author: T. Hara, V. Trusov, T. Mori, Y. Usov, Y. S. Sohn, A. Abdesselam, B. Bhuyan, A. Zupanc, Z. P. Zhang, V.N. Zhilich, P. Krokovny, B. Pal, L. E. Piilonen, J. G. Shiu, D. Cinabro, D. Červenkov, M. Starič, M. Petrič, X. H. He, Hiroaki Aihara, Yuki Sato, E. L. Barberio, Z. DoleŽal, G. Inguglia, J. Haba, Y. Choi, Z. Drásal, D. M. Asner, V. Savinov, A. Moll, D. Getzkow, P. Lukin, E. Nakano, Y. Watanabe, G. Pakhlova, I. Jaegle, K. Miyabayashi, E. Solovieva, N. K. Nisar, I. Badhrees, T. Kumita, L. Santelj, Jung-Hyun Kim, T. Ferber, R. Itoh, Kyung-Suk Cho, Bumho Kim, A.S. Kuzmin, T. Kawasaki, K. Inami, A. Drutskoy, J. Libby, Byung Gu Cheon, K. Hayasaka, S. Korpar, I. Adachi, L. Li Gioi, R. Glattauer, R. Ayad, Sunmin Ryu, H. Miyata, Y. M. Goh, V. Chobanova, Y. J. Kwon, T. K. Pedlar, T. E. Browder, S. Okuno, E. Ribežl, T. A. Shibata, M. Bračko, M. Nayak, S. Nishida, H. Park, C. P. Shen, A. Garmash, M. Steder, P. Pakhlov, J. Dalseno, H. Farhat, A. Vossen, C. Van Hulse, J. B. Kim, B.A. Shwartz, H. J. Kim, S. L. Olsen, E. Kato, Phillip Urquijo, M. Ritter, G. Schnell, M. Z. Wang, K. Kinoshita, U. Tamponi, Philip Lewis, V. Bhardwaj, Y. Sakai, G. Varner, M. N. Wagner, Dipanwita Dutta, B. G. Fulsom, E. Won, T. Aushev, K. Arinstein, P. Vanhoefer, O. Schneider, G. B. Mohanty, R. Mizuk, Vladimir Zhulanov, M. E. Sevior, I. S. Lee, D. Joffe, S. Uno, Mikhail Danilov, M. Shapkin, A. Bozek, G. Bonvicini, D. Matvienko, A. Vinokurova, K. Chilikin, J. E. Fast, W. S. Hou, H. Hayashii, S. H. Kim, H. Li, K. H. Kang, A. M. Bakich, Yoshinobu Unno, R. Mussa, L. Pesántez, V. Vorobyev, A. Rostomyan, R. Pestotnik, S. Sandilya, C. W. Park, K. M. Williams, A. Chen, P. Križan, S. Yashchenko, Peter Kodys, K. Senyo, P. Katrenko, T. Julius, B. Golob, R. Chistov, Andrey Sokolov, H. K. Moon, V. Gaur, J. S. Lange, Semen Eidelman, T. Sanuki, V.E. Shebalin, A.L. Sibidanov, Kiyoshi Tanida, X. L. Wang, Tsuyoshi Horiguchi, Y. Teramoto, K. T. Kim, D. Y. Kim, R. Gillard, V. Babu, Yongsun Kim, A. Ishikawa, C. Schwanda, S. K. Choi, T. Nanut, S. Ogawa, T. Uglov, Toru Iijima, C. H. Wang, F. Simon, Y. Iwasaki, M. Nakao, Z. Natkaniec, B. R. Ko, N. Gabyshev, M. Uchida, and Shuji Tanaka
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Analytical chemistry, 01 natural sciences, KEKB, Isospin, 0103 physical sciences, Pi, Statistical analysis, 010306 general physics
Abstract: We report improved measurements of the product branching fractions B(B+ --> (D) over bar D-0(s0)*(+)(2317)) x B(D-s0*(+)(2317) --> D-s(+) pi(0)) (8.0(-1.2)(+1.3) +/- 1.1 +/- 0.4) x 10(-4) and B(B-0 --> D-Ds0*(+)(2317)) x B(D-s0*(+)(2317)) --> D-s(+) pi(0)) = (10.2(-1.2)(+1.3) +/- 1.0 +/- 0.4) x 10(-4) where the first errors are statistical, the second are systematic and the third are from D and D-s(+) branching fractions. In addition, we report negative results from a search for hypothesized neutral (z(0)) and doubly charged (z(++)) isospin partners of the D-s0*(+)(2317) and provide upper limits on the product branching fractions B(B-0 --> D(0)z(0)) x B(z(0) --> D-s(+)pi(-)) and B(B+ --> D(0)z(++) ) x B(z(++) --> D-s(+)pi(+)) that are more than an order of magnitude smaller than theoretical expectations for the hypotheses that the D-s0(*+)(2317) is a member of an isospin triplet. The analysis uses a 711 fb(-1) data sample containing 772 million B (B) over bar -meson pairs collected at the Upsilon(4S) resonance in the Belle detector at the KEKB collider.
Published: 2015

43. Measurement of the DirectCPAsymmetry inB¯→Xs+dγDecays with a Lepton Tag

Author: T. Sumiyoshi, Z. Natkaniec, B. R. Ko, N. Gabyshev, C. Kiesling, J. Hasenbusch, G. Schnell, Y. Sakai, G. Varner, D. Cinabro, V.E. Shebalin, B. Bhuyan, Y. Usov, G. Pakhlova, A. Drutskoy, Z. DoleŽal, J. E. Fast, V.M. Aulchenko, X. H. He, Yuki Sato, M. Uchida, S. Al Said, Y. Choi, A. M. Bakich, N. Taniguchi, S. Yashchenko, B.A. Shwartz, A. Bobrov, A. Garmash, Tsuyoshi Horiguchi, Jung-Hyun Kim, E. L. Barberio, D. Y. Kim, K. Trabelsi, V. Savinov, C. P. Shen, Y. J. Kwon, T. Ferber, R. Itoh, K. T. Kim, Peter Kodys, K. Senyo, T. Julius, A. Moll, R. Gillard, Y. Watanabe, K. Inami, H. Miyata, V. Chobanova, S. Sandilya, P. Krokovny, Hiroaki Aihara, Yongsun Kim, A. Ishikawa, C. Schwanda, O. Schneider, S. Korpar, T. Kuhr, Y. S. Sohn, D. Liventsev, A. Abdesselam, Kyung-Suk Cho, O. Seon, M. Z. Wang, U. Tamponi, E. Kato, F. Simon, D. Getzkow, T. Aushev, Jochen Dingfelder, A. Heller, A. Rostomyan, V. Chekelian, V. Bhardwaj, Byung Gu Cheon, R. Chistov, A.E. Bondar, P. Wang, Y. Iwasaki, P. Pakhlov, J. Yamaoka, M. Rozanska, G. B. Mohanty, K. Adamczyk, L. Pesántez, M. N. Wagner, T. E. Browder, J. Dalseno, H. Farhat, Phillip Urquijo, A. Zupanc, M. Nakao, T. Sanuki, Vladimir Zhulanov, M. E. Sevior, I. S. Lee, R. Mizuk, H. Park, Z. P. Zhang, M. Ritter, L. Li Gioi, M. J. Kim, G. Tatishvili, B. Kronenbitter, A. Bozek, S. L. Olsen, M. Starič, D. Joffe, J. B. Kim, D. M. Asner, Vikas Bansal, T. Kumita, T. A. Shibata, H. Hayashii, M. Petrič, C. Ng, K. Arinstein, M. Bračko, C. Oswald, Yang Li, T. Kawasaki, N. K. Nisar, L. Santelj, A.S. Kuzmin, C. Van Hulse, Yoshinobu Unno, M. Steder, T. Nanut, J. Haba, Y. M. Goh, J. Libby, I. Adachi, E. Won, L. E. Piilonen, J. G. Shiu, E. Solovieva, D. Matvienko, C. H. Wang, D. Dutta, S. Okuno, E. Ribežl, C. W. Park, P. Križan, P. Vanhoefer, A. J. Schwartz, W. S. Hou, Andrey Sokolov, T. Uglov, A.L. Sibidanov, V. Vorobyev, V.N. Zhilich, Bingran Wang, V. Gaur, B. Golob, I. Jaegle, K. Miyabayashi, H. K. Moon, M. Nayak, S. Nishida, J. S. Lange, S. Ganguly, E. Nakano, Y. Yook, Semen Eidelman, S. Uno, G. Bonvicini, A. Vinokurova, S. H. Kim, K. H. Kang, D. Červenkov, P. Lukin, R. Ayad, T. K. Pedlar, K. M. Williams, A. Chen, K. Chilikin, R. Pestotnik, Z. Drásal, Y. Teramoto, M. Huschle, Toru Iijima, Seema Bahinipati, O. Frost, and S. Ogawa
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, media_common.quotation_subject, Gamma ray, General Physics and Astronomy, Resonance, Photon energy, 01 natural sciences, Asymmetry, Nuclear physics, KEKB, 0103 physical sciences, CP violation, High Energy Physics::Experiment, 010306 general physics, Lepton, media_common
Abstract: We report the measurement of the direct CP asymmetry in the radiative (B) over bar -> Xs+d gamma decay using a data sample of (772 +/- 11) 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. The CP asymmetry is measured as a function of the photon energy threshold. For E-gamma* >= 2.1 GeV, where E-gamma* is the photon energy in the center-of-mass frame, we obtain A(CP) ((B) over bar -> Xs+d gamma) = (2.2 +/- 3.9 +/- 0.9)%, consistent with the standard model prediction.
Published: 2015

44. Search for the decayB+→K¯0K+at Belle

Author: K. T. Kim, R. Gillard, Marko Petrič, Jung-Hyun Kim, M. Z. Wang, A. Abdesselam, W. Ostrowicz, V. Gaur, V. Trusov, Yang Li, U. Tamponi, B.A. Shwartz, H. Farhat, S. Okuno, V.N. Zhilich, D. Matvienko, B. R. Ko, Y. S. Sohn, I. Jaegle, E. Ribežl, D. Liventsev, Y. Choi, G. Schnell, T. Iijima, H. J. Kim, D. M. Asner, M. Sumihama, R. Mussa, Vikas Bansal, N. K. Nisar, J. G. Shiu, M. E. Sevior, I. S. Lee, Y. Teramoto, B. Bhuyan, Z. Drásal, E. Won, A. Moll, A. Ishikawa, Peter Kodys, M. Nakao, S. Sandilya, J. Libby, T. E. Browder, T. Kuhr, H. Miyake, E. Nakano, C. W. Park, G. Tatishvili, P. Križan, T. Aushev, P. Vanhoefer, X. H. He, I. Adachi, C. H. Wang, S. Uno, T. Hara, H. Aihara, Frank Simon, M. Bračko, D. Dutta, M. Ritter, M. Nayak, Andrey Sokolov, V. Savinov, Y. Usov, Y. Sakai, Y. M. Goh, C. Van Hulse, A. Vinokurova, T. Ferber, J. B. Kim, S. Nishida, M. J. Kim, V.M. Aulchenko, T. Kawasaki, W. S. Hou, S. H. Kim, P. Krokovny, Z. P. Zhang, E. L. Barberio, K. H. Kang, J. Haba, M. Starič, V.E. Shebalin, R. Sinha, G. B. Mohanty, S. Ogawa, M. Uchida, R. Mizuk, Y. Yusa, V. Chobanova, D. Joffe, Y. Watanabe, E. Solovieva, Z. Doležal, B. Golob, M. Huschle, H. K. Moon, B. G. Cheon, T. Sumiyoshi, S. Al Said, J. S. Lange, P.A. Lukin, G. S. Varner, Y. Iwasaki, Y. J. Kwon, K. M. Williams, A. Chen, Saraju P. Mohanty, R. Itoh, K. Senyo, Y. Unno, S. Korpar, C. Schwanda, T. Sanuki, L. E. Piilonen, O. Schneider, Tara Nanut, R. Ayad, G. Pakhlova, H. Hayashii, K. Arinstein, A. Rostomyan, P. Wang, D. Y. Kim, Kodai Matsuoka, S. Yashchenko, H. Park, A. Bozek, T. Julius, T. A. Shibata, H. Miyata, S.I. Eidelman, K. Hayasaka, A. Garmash, L. Li Gioi, and D. Cinabro
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, KEKB, law, Branching fraction, Electron–positron annihilation, Resonance, Collider, 3. Good health, law.invention, Bar (unit)
Abstract: We report a search for the rare charmless decay B+ -> (K) over bar*K-0*(+) 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. No statistically significant signal is found and a 90% confidence- level upper limit is set on the decay branching fraction of B(B+ -> (K) over bar*K-0*(+)) < 1.31 x 10(-6).
Published: 2015

45. Amplitude analysis ofe+e−→ϒ(nS)π+π−ats=10.866 GeV

Author: Y. Choi, K. Kinoshita, U. Tamponi, T. Ferber, H. J. Hyun, E. Won, Y. Hoshi, Y. Teramoto, P. Pakhlov, A. Drutskoy, K. Hayasaka, D. Matvienko, Yang Li, Toru Iijima, S. Korpar, W. S. Hou, K. Trabelsi, A. J. Schwartz, Chang Liu, A. Zupanc, Z. P. Zhang, H. Park, A. Bozek, N. K. Nisar, T. Hara, C. P. Shen, D. Cinabro, T. A. Shibata, M. Bračko, Yukinori Sato, T. E. Browder, V. Vorobyev, T. Sanuki, Y. S. Sohn, A.S. Kuzmin, A. Abdesselam, L. Li Gioi, C. H. Wang, D. Dutta, Z. DoleŽal, Jung-Hyun Kim, A. Frey, B.A. Shwartz, A. Rostomyan, G. Bonvicini, A. Vinokurova, J. Dalseno, H. Farhat, C. Van Hulse, T. Aushev, Y. M. Goh, D. A. Epifanov, I. Adachi, S. Okuno, V. Chekelian, O. Frost, V.E. Shebalin, J. B. Kim, G. Tatishvili, Phillip Urquijo, M. Ritter, E. Ribežl, G. B. Mohanty, Y. J. Kwon, L. E. Piilonen, J. G. Shiu, M. Starič, M. E. Sevior, M. Petrič, D. Červenkov, R. Mizuk, O. Schneider, S. L. Olsen, W. Ostrowicz, J. E. Fast, P. Lukin, J. Klucar, Z. Q. Liu, A. Bobrov, R. Ayad, T. K. Pedlar, J. Libby, A. M. Bakich, R. Glattauer, Y. B. Hsiung, B. Golob, T. Kuhr, Y. Watanabe, T. Kawasaki, M. Watanabe, S. Al Said, A. Moll, D. Semmler, O. Nitoh, Y. Usov, P. Krokovny, V.N. Zhilich, H. Miyata, V. Chobanova, S. Sandilya, Kyung-Suk Cho, S. Ganguly, Hiroaki Aihara, H. K. Park, F. Simon, H. Kawai, Y. Yamashita, M. J. Kim, D. Liventsev, T. Sumiyoshi, H. Kichimi, D. Y. Kim, M. Steder, Byung Gu Cheon, Yongsun Kim, A. Garmash, Yoshinobu Unno, Sang Hoon Lee, I. Jaegle, E. Kato, M. Nayak, A. Bala, A. Ishikawa, D. M. Asner, Y. Iwasaki, R. Itoh, S. Nishida, S. Uno, C. Z. Yuan, E. Nakano, T. Saito, K. T. Kim, M. Nakao, R. Gillard, K. Miyabayashi, P. Wang, D. Santel, M. N. Wagner, E. Nedelkovska, V. Bhardwaj, Peter Kodys, K. Senyo, C. Kiesling, P. Katrenko, Sunmin Ryu, J. Haba, V.M. Aulchenko, X. H. He, T. Iwashita, Hitoshi Yamamoto, P. Vanhoefer, A.E. Bondar, Kiyoshi Tanida, X. L. Wang, E. Solovieva, S. Yashchenko, M. Uchida, T. Julius, R. Chistov, G. Schnell, Y. Sakai, G. Varner, Samo Stanič, Z. Natkaniec, B. R. Ko, H. Hayashii, K. M. Williams, A. Chen, M. Shapkin, M. Röhrken, K. Chilikin, R. Pestotnik, R. Mussa, P. Križan, Andrey Sokolov, J. H. Kang, V. Gaur, Y. Yook, and Semen Eidelman
Subjects: Physics, Nuclear and High Energy Physics, Annihilation, KEKB, Amplitude, Pi, Analytical chemistry
Abstract: We report results on studies of the e(+)e(-) annihilation into three-body Upsilon(nS)pi(+)pi(-) (n = 1, 2, 3) final states including measurements of cross sections and the full amplitude analysis. The cross sections measured at root s = 10.866 GeV and corrected for the initial state radiation are sigma(e(+)e(-) --> Upsilon(1S)pi(+)pi(-)) = (2.27 +/- 0.12 +/- 0.14) pb, sigma(e(+)e(-) --> Upsilon(2S)pi(+)pi(-)) = (4.07 +/- 0.16 +/- 0.45) pb, and sigma(e(+)e(-) --> Upsilon(3S)pi(+)pi(-)) = (1.46 +/- 0.09 +/- 0.16) pb. Amplitude analysis of the three-body Upsilon(nS)pi(+)pi(-) final states strongly favors I-G(J(P)) = 1(+)(1(+)) quantum-number assignments for the two bottomonium-like Z(b)(+/-) states, recently observed in the Upsilon(nS)pi(+) and h(b)(mP)pi(+)(m = 1, 2) decay channels. The results are obtained with a 121.4 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
Published: 2015

46. Search forB+→e+νeandB+→μ+νμdecays using hadronic tagging

Author: M. Nayak, B. Bhuyan, S. Nishida, Yukinori Sato, T. E. Browder, Vikas Bansal, T. A. Shibata, B.A. Shwartz, M. E. Sevior, Sunmin Ryu, H. Miyata, H. Farhat, V. Chobanova, M. Bračko, K. T. Kim, D. Liventsev, R. Glattauer, M. Z. Wang, K. Kinoshita, Phillip Urquijo, S. Al Said, M. Ritter, A. Drutskoy, D. Dutta, I. Adachi, K. Dutta, V.M. Aulchenko, Yueh-Feng Liu, X. H. He, A. Bala, C. Van Hulse, Yang Li, A. Rostomyan, K. Trabelsi, C. P. Shen, Y. J. Kwon, K. Arinstein, N. K. Nisar, L. Santelj, R. Itoh, P. Wang, T. Sumiyoshi, A.S. Kuzmin, V. Chekelian, T. Kuhr, D. Y. Kim, Y. Choi, G. Bonvicini, Y. M. Goh, R. Gillard, M. N. Wagner, G. B. Mohanty, T. Ferber, J. B. Kim, Y. Hoshi, Yongsun Kim, A. Moll, S. Wehle, J. Haba, T. Aushev, Y. Yusa, A. Ishikawa, A. Vinokurova, C. Schwanda, Kyung-Suk Cho, S. Korpar, Y. Teramoto, K. Hayasaka, Byung Gu Cheon, I. Jaegle, O. Schneider, K. M. Williams, Y. Watanabe, Yasuyuki Horii, A. Garmash, J. Klucar, O. Frost, M. Starič, J. E. Fast, S. Yashchenko, A. Chen, E. Kato, A. M. Bakich, T. Julius, Z. DoleŽal, V. Bhardwaj, M. Sumihama, V. Savinov, S. Bahinipati, S. Ogawa, S. Sandilya, O. Nitoh, Z. Natkaniec, K. Hara, I. Nakamura, P. Pakhlov, Z. Drásal, Chang Liu, P. Krokovny, L. Li Gioi, M. Heck, T. Kawasaki, R. Chistov, Jung-Hyun Kim, V.E. Shebalin, M. J. Kim, D. Červenkov, V.N. Zhilich, H. Park, A. Bozek, E. Nakano, D. M. Asner, S. Okuno, K. Miyabayashi, P. Lukin, B. R. Ko, N. Gabyshev, E. Nedelkovska, H. Hayashii, A.L. Sibidanov, Takuya Higuchi, R. Ayad, T. K. Pedlar, L. E. Piilonen, J. G. Shiu, G. Schnell, Toru Iijima, Y. Sakai, G. Varner, C. Kiesling, A.E. Bondar, C. S. Park, T. Saito, M. Uchida, M. Steder, M. Röhrken, K. Chilikin, Yasushi Nagasaka, Peter Kodys, K. Senyo, P. Katrenko, X. L. Wang, T. Uglov, O. Seon, R. Pestotnik, T. Sanuki, T. Iwashita, E. Won, P. Vanhoefer, W. S. Hou, Andrey Sokolov, V. Vorobyev, E. Solovieva, V. Gaur, B. Golob, J. S. Lange, S. Ganguly, Y. Yook, Semen Eidelman, G. Tatishvili, M. Petrič, R. Mussa, P. Križan, A. Zupanc, Z. P. Zhang, Y. S. Sohn, A. Abdesselam, Kevin Varvell, Y. Usov, O. Grzymkowska, C. H. Wang, M. Watanabe, H. K. Park, F. Simon, Y. Yamashita, Y. Iwasaki, and M. Nakao
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Hadron, 01 natural sciences, Nuclear physics, KEKB, 0103 physical sciences, High Energy Physics::Experiment, B meson, 010306 general physics
Abstract: We present a search for the rare leptonic decays B+ -> e(+)nu(e) and B+ -> mu(+) nu(mu) using the full Upsilon(4S) data sample of 772 x 10(6) B (B) over bar pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One of the B mesons from the Upsilon(4S) -> B (B) over bar decay is fully reconstructed in a hadronic mode, while the recoiling side is analyzed for the signal decay. We find no evidence of a signal in any of the decay modes. Upper limits of the corresponding branching fractions are determined as beta(B+ -> e(+)nu(e)) mu(+)nu(mu)) < 2.7 x 10(-6) at 90% confidence level.
Published: 2015

47. Measurement of theB¯→Xsγbranching fraction with a sum of exclusive decays

Author: G. Schnell, T. Iijima, H. Nakazawa, Y. Iwasaki, Y. J. Kwon, K. Kinoshita, U. Tamponi, T. Kuhr, A. J. Schwartz, H. J. Kim, O. Schneider, P. Pakhlov, R. Mussa, A. Ishikawa, M. Nakao, K. M. Williams, A. Chen, C. W. Park, P. Križan, A. Garmash, J. Yamaoka, T. Saito, H. Farhat, T. Hara, T. A. Shibata, H. Miyata, T. Mori, Y. Usov, H. Park, A. Bozek, Mikhail Danilov, Peter Kodys, James E. Fast, M. Steder, A.L. Sibidanov, Y. Yook, S.I. Eidelman, Byung Gu Cheon, A. Zupanc, Y. S. Sohn, L. E. Piilonen, V.N. Zhilich, G. Pakhlova, K. Chilikin, K. Hayasaka, S. Yashchenko, I. Jaegle, K. Miyabayashi, G. Tatishvili, M. J. Kim, Z. P. Zhang, X. H. He, T. Julius, M. Starič, Yukinori Sato, K. Senyo, S. Al Said, P. Lukin, B. R. Ko, B. Golob, Hiroaki Aihara, R. Pestotnik, G. B. Mohanty, A. Rostomyan, Vikas Bansal, E. Nakano, H. Hayashii, Z. Drásal, S. L. Olsen, J. Hasenbusch, C. Kiesling, J. G. Shiu, J. Dalseno, R. Mizuk, J. S. Lange, Y. Yusa, T. K. Pedlar, S. Ganguly, C. Oswald, A. Moll, T. Sumiyoshi, I. Adachi, T. Kawasaki, D. Getzkow, C. Van Hulse, D. Joffe, M. Bračko, A. Abdesselam, M. Uchida, J. B. Kim, V. Chobanova, T. Sanuki, Yongsun Kim, W. S. Hou, Phillip Urquijo, V. Gaur, M. Ritter, L. Li Gioi, Marko Petrič, B. Bhuyan, S. Uno, K. Inami, C. Schwanda, D. Liventsev, H. J. Hyun, G. Bonvicini, T. E. Browder, V. Vorobyev, A. Vinokurova, E. Kato, D. Matvienko, A. Bobrov, A. Drutskoy, S. H. Kim, P. Krokovny, K. Arinstein, G. S. Varner, K. H. Kang, K. Cho, Sunmin Ryu, V. Savinov, D. M. Asner, R. Ayad, E. Won, Y. Watanabe, Y. Ushiroda, Yang Li, Hitoshi Yamamoto, Yoshinobu Unno, Y. Choi, A. M. Bakich, Z. Natkaniec, P. Vanhoefer, T. Uglov, D. Y. Kim, N. K. Nisar, L. Santelj, R. Itoh, K. Trabelsi, P. Wang, M. N. Wagner, C. P. Shen, N. Gabyshev, D. Červenkov, Y. Sakai, S. Korpar, Y. M. Goh, V.E. Shebalin, T. Aushev, T. Ferber, A.E. Bondar, M. Watanabe, T. Horiguchi, C. H. Wang, Z. Doležal, X. L. Wang, R. Gillard, S. K. Choi, T. Nanut, S. Okuno, E. Ribežl, Takuya Higuchi, S. Ogawa, Y. Teramoto, S. Sandilya, J. Libby, B.A. Shwartz, D. Cinabro, S. Nishida, Jochen Dingfelder, Jung-Hyun Kim, Vladimir Zhulanov, M. E. Sevior, I. S. Lee, B. Kronenbitter, J. Haba, H. Kichimi, A. Vossen, O. Seon, Frank Simon, and E. Solovieva
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Branching fraction, Hadron, Photon energy, Strangeness, 01 natural sciences, Measure (mathematics), Resonance (particle physics), Nuclear physics, 0103 physical sciences, 010306 general physics
Abstract: We use 772×106 BB¯ meson pairs collected at the ?(4S) resonance with the Belle detector to measure the branching fraction for B¯→Xsγ. Our measurement uses a sum-of-exclusives approach in which 38 of the hadronic final states with strangeness equal to +1, denoted by Xs, are reconstructed. The inclusive branching fraction for MXs
Published: 2015

48. Observation ofX(3872)inB→X(3872)Kπdecays

Author: B.A. Shwartz, D. Getzkow, D. Liventsev, Vladimir Zhulanov, V. Trusov, M. E. Sevior, I. S. Lee, Tsuyoshi Horiguchi, D. Cinabro, Z. DoleŽal, M. Starič, K. T. Kim, S. K. Choi, D. Červenkov, H. Miyake, L. Li Gioi, I. Adachi, Jung-Hyun Kim, D. A. Epifanov, G. Tatishvili, Tariq Aziz, T. Kawasaki, L. E. Piilonen, J. G. Shiu, Yang Li, P. Lukin, H. Miyata, J. Haba, M. Steder, V.N. Zhilich, N. K. Nisar, L. Santelj, M. Petrič, Y. Choi, A. Drutskoy, A.S. Kuzmin, V. Chobanova, Andrey Sokolov, S. Okuno, E. Ribežl, I. Jaegle, S. L. Olsen, R. Ayad, K. Miyabayashi, Y. M. Goh, V.M. Aulchenko, X. H. He, Hitoshi Yamamoto, E. L. Barberio, T. Ferber, P. Vanhoefer, Kiyoshi Tanida, Seema Bahinipati, M. N. Wagner, R. Pestotnik, P. Krokovny, K. Trabelsi, C. P. Shen, V. Gaur, J. Libby, G. B. Mohanty, R. Itoh, X. L. Wang, M. Nayak, Hiroaki Aihara, R. Mizuk, Y. J. Kwon, S. Nishida, W. S. Hou, D. Joffe, S. Korpar, C. Z. Yuan, F. Thorne, S. Uehara, E. Nakano, K. M. Williams, T. Uglov, V. Vorobyev, T. Aushev, H. Park, J. B. Kim, A. Chen, Semen Eidelman, O. Schneider, R. Mussa, A. Garmash, T. Sanuki, E. Kato, E. Won, S. Uno, B. Golob, T. E. Browder, H. K. Moon, J. Dalseno, J. S. Lange, C. W. Park, M. Huschle, P. Križan, M. Ziegler, V. Bhardwaj, H. Farhat, B. Bhuyan, O. Frost, S. Ogawa, Phillip Urquijo, M. Ritter, Toru Iijima, M. J. Kim, D. Matvienko, G. Bonvicini, Y. Watanabe, D. M. Asner, A. Vinokurova, Y. Teramoto, A. Bobrov, S. H. Kim, V. Savinov, Saraju P. Mohanty, Rakesh Kumar, D. Y. Kim, K. H. Kang, P. Pakhlov, Yongsun Kim, A. Ishikawa, C. Schwanda, M. Sumihama, A. Bozek, A. Heller, A.L. Sibidanov, Peter Kodys, K. Senyo, V.E. Shebalin, K. Arinstein, Yoshinobu Unno, A. Bala, Jochen Dingfelder, A. Zupanc, Z. P. Zhang, C. Kiesling, Y. S. Sohn, J. E. Fast, A. M. Bakich, A. Abdesselam, M. Uchida, S. Sandilya, Z. Natkaniec, K. Kinoshita, Vikas Bansal, T. A. Shibata, M. Bračko, B. R. Ko, N. Gabyshev, T. Hara, Jasvinder A. Singh, Y. Usov, G. Schnell, A. Moll, Y. Sakai, G. Varner, T. Kuhr, Kyung-Suk Cho, Byung Gu Cheon, T. Sumiyoshi, G. Pakhlova, S. Yashchenko, R. Chistov, O. Grzymkowska, C. H. Wang, D. Dutta, F. Simon, Y. Yamashita, Y. Iwasaki, M. Nakao, O. Seon, E. Solovieva, and H. Hayashii
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, KEKB, 010308 nuclear & particles physics, Full data, Electron–positron annihilation, 0103 physical sciences, Pi, Analytical chemistry, 010306 general physics, 01 natural sciences, X(3872)
Abstract: We report the first observation of B-0 -> X(3872)(K+pi(-)) and evidence for B+ -> X(3872)(K-0 pi(+)). We measure the product of branching fractions for the former to be B(B-0 -> X(3872)(K+pi(-)) x B(X(3872) -> J/psi pi(+)pi(-)) = (7.9 +/- 1.3(stat) +/- 0.4(syst) x 10(-6) and find that B-0 -> X(3872)K*(892)(0) does not dominate the B-0 -> X(3872)K+pi(-) decay mode. We also measure B(B+ -> X(3872)(K-0 pi(+))) x B(X(3872) -> J/psi pi(+)pi(-)) = (10.6 +/- 3.0(stat) +/- 0.9(syst) x 10(-6). This study is based on the full data sample of 711 fb(-1) (772 x 10(6)B (B) over bar pairs) collected at the Upsilon(4S) resonance with the Belle detector at the KEKB collider.
Published: 2015

49. Measurement ofB0→Ds−KS0π+andB+→Ds−K+K+branching fractions

Author: T. A. Shibata, H. Miyata, S.I. Eidelman, M. Sumihama, K. Hayasaka, M. Uchida, V. Chobanova, Yang Li, Jochen Dingfelder, Yukinori Sato, J. G. Shiu, M. Watanabe, D. Liventsev, Y. Choi, S. Al Said, Vikas Bansal, N. K. Nisar, T. Hara, L. Santelj, T. Aushev, C. Van Hulse, Y. Iwasaki, Y. J. Kwon, Phillip Urquijo, O. Grzymkowska, C. H. Wang, A. Zupanc, R. Gillard, G. S. Varner, M. Ritter, Z. P. Zhang, Y. Watanabe, O. Schneider, T. Ferber, S. K. Choi, G. Bonvicini, M. Petriè, D. Èervenkov, R. Itoh, P. Pakhlov, Y. M. Goh, P.A. Lukin, A. Rostomyan, P. Wang, M. N. Wagner, A. Vinokurova, A. Moll, V.N. Zhilich, Yongsun Kim, X. H. He, S. H. Kim, P. Krokovny, K. Miyabayashi, G. B. Mohanty, B. G. Cheon, S. Uno, C. Schwanda, T. Iijima, P. Kriəan, K. M. Williams, I. Jaegle, G. Schnell, A. Drutskoy, H. Park, A. Bozek, O. Frost, H. J. Hyun, J. Stypula, R. Mizuk, R. Mussa, Y. Yusa, A.E. Bondar, S. Sandilya, Mikhail Danilov, V.M. Aulchenko, K. H. Kang, K. Cho, D. Joffe, A. Ishikawa, J. Yamaoka, M. J. Kim, K. Senyo, K. Trabelsi, C. P. Shen, J. S. Lange, Kiyoshi Tanida, S. Ganguly, T. Kuhr, S. Nishida, L. E. Piilonen, Z. Doleəal, H. Farhat, T. Mori, H. Aihara, J. Dalseno, C. W. Park, G. Pakhlova, D. Matvienko, Y. Usov, T. Kawasaki, T. Kumita, M. Z. Wang, K. Kinoshita, U. Tamponi, F. Thorne, Peter Kodys, V.E. Shebalin, S. Yashchenko, A. Abdesselam, V. Chekelian, M. Stariè, V. Gaur, T. Julius, E. Kato, D. M. Asner, D. Getzkow, B. R. Ko, M. Nakao, V. Bhardwaj, B. Bhuyan, E. Won, Z. Drásal, G. Tatishvili, K. Arinstein, K. K. Joo, Y. S. Sohn, T. E. Browder, T. K. Pedlar, A.L. Sibidanov, P. Vanhoefer, A. Bobrov, James E. Fast, V. Savinov, L. Li Gioi, A. Garmash, W. S. Hou, Y. Yook, T. Sanuki, V. Vorobyev, M. Bračko, M. Steder, E. Ribeəl, A. M. Bakich, Z. Natkaniec, D. Cinabro, N. Gabyshev, J. Haba, Jung-Hyun Kim, A. Vossen, O. Seon, Frank Simon, H. Kichimi, Y. Sakai, S. Okuno, J. Wiechczynski, B.A. Shwartz, K. Adamczyk, Vladimir Zhulanov, M. E. Sevior, I. S. Lee, E. Solovieva, Y. Teramoto, J. Libby, I. Adachi, J. B. Kim, R. Ayad, D. Y. Kim, H. Hayashii, M. Huschle, Y. Unno, A. Kuzmin, S. Ogawa, Tara Nanut, and T. Uglov
Subjects: Physics, Nuclear and High Energy Physics, KEKB, Meson, Branching fraction, Analytical chemistry, Branching (polymer chemistry)
Abstract: We report a measurement of the B0 and B+ meson decays to the D- sK0 Sπ+ and D- sK+K+ final states, respectively, using 657 × 106BB¯ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e+ collider. Using the D- s → φ π-, K∗(892)0K- and K0 SK- decay modes for the Ds reconstruction, we measure the following branching fractions: B(B0 → D- sK0 sπ+) = [0.47 ± 0.06(stat) ± 0.05(syst)] × 10-4 and B(B+ → D- sK+K+) = [0.93 ± 0.22(stat) ± 0.10(syst)] × 10-5. We find the ratio of the branching fraction of B+ → D- sK+K+ to that of the analogous Cabibbo-favored B+ → D- sK+π+ decay to be RB = 0.054 ± 0.013(stat) ± 0.006(syst), which is consistent with the naive factorization model. We also observe a deviation of the DsK invariant-mass distribution from the three-body phase-space model for both studied decays.
Published: 2015

50. Evidence ofϒ(1S)→J/ψ+χc1and search for double-charmonium production inϒ(1S)andϒ(2S)decays

Author: M. Bračko, A. M. Bakich, N. Gabyshev, D. Červenkov, Z. Drásal, K. T. Kim, L. E. Piilonen, R. Mussa, Yang Li, Y. Choi, R. Gillard, B. Bhuyan, N. K. Nisar, L. Santelj, S. K. Choi, T. E. Browder, S. Nishida, K. Arinstein, D. Cinabro, I. Adachi, A. Ishikawa, B. G. Cheon, X. H. He, M. Uchida, G. Tatishvili, Hiroaki Aihara, Y. Sakai, G. Schnell, T. Iijima, V. Chobanova, S. Uno, A.L. Sibidanov, D. Liventsev, C. Z. Yuan, M. Nakao, J. B. Kim, Y. M. Goh, A. Bobrov, Z. P. Zhang, C. W. Park, Jung-Hyun Kim, S. Yashchenko, P. Križan, G. S. Varner, T. Uglov, Yoshinobu Unno, Mikhail Danilov, R. Itoh, M. Starič, T. Julius, A. Vinokurova, J. Haba, P. Wang, M. N. Wagner, S. Al Said, T. Aushev, R. Chistov, S. Korpar, Peter Kodys, K. K. Joo, E. Won, S. Okuno, E. Ribežl, S. E. Vahsen, T. Ferber, K. Chilikin, K. Senyo, T. A. Shibata, H. Miyata, Prafulla Kumar Behera, Andrey Sokolov, P. Krokovny, J. Li, S. D. Yang, M. Huschle, Vikas Bansal, K. Cho, A. Abdesselam, S.I. Eidelman, E. Nakano, Y. J. Kwon, J. G. Shiu, V. Gaur, J. Dalseno, S. Uehara, P. Lukin, B. R. Ko, T. Kawasaki, Phillip Urquijo, O. Schneider, M. Ritter, C. Schwanda, A. Drutskoy, K. Hayasaka, C. Van Hulse, K. Dutta, A.S. Kuzmin, R. Ayad, T. K. Pedlar, T. Sumiyoshi, P. Vanhoefer, James E. Fast, A. Moll, Kiyoshi Tanida, C. P. Shen, T. Nanut, Y. Yook, D. Y. Kim, Marko Petrič, D. Semmler, Z. Doležal, T. Sanuki, T. Hara, R. Pestotnik, B.A. Shwartz, X. L. Wang, Y. Usov, V.E. Shebalin, W. S. Hou, H. Park, A. Bozek, Vladimir Zhulanov, Y. Ban, A. Vossen, M. Watanabe, V.M. Aulchenko, V. Vorobyev, A. Chen, Frank Simon, W. Ostrowicz, M. Z. Wang, D. M. Asner, D. Joffe, J. Yamaoka, K. Kinoshita, U. Tamponi, H. Farhat, Jochen Dingfelder, A. Rostomyan, B. Golob, V. Chekelian, J. S. Lange, S. Ganguly, H. Hayashii, Y. Watanabe, K. Inami, Y. S. Sohn, S. Sandilya, L. Li Gioi, A. Garmash, C. H. Wang, H. J. Kim, M. Steder, V.N. Zhilich, I. Jaegle, K. Miyabayashi, Y. Teramoto, and J. Libby
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron–positron annihilation, Sigma, 01 natural sciences, Spectral line, Nuclear physics, KEKB, Factorization, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract: Using data samples of 102 x 10(6) gamma(1S) and 158 x 10(6) gamma(2S) events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays gamma(1S, 2S) --> J/psi(psi') + X, where X = eta(c).chi(cJ) (J = 0, 1, 2), eta(c)(2S), X(3940), and X(4160). No significant signal is observed in the spectra of the mass recoiling against the reconstructed J/psi or psi' except for the evidence of chi(c1) production with a significance of 4.6 sigma for gamma(1S) -> J/psi + chi(c1). The measured branching fraction B(gamma(1S) -> J/psi + chi(c1)) is [3.90 +/- 1.21 (stat) +/- 0.23(syst) x 10(-6). The 90% C.L. upper limits on the branching fractions of the other modes having a significance of less than 3 sigma are determined. These results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach.
Published: 2014

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