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1. Competitive strengthening between dislocation slip and twinning in cast-wrought and additively manufactured CrCoNi medium entropy alloys

Author: W. Woo, Y.S. Kim, H.B. Chae, S.Y. Lee, J.S. Jeong, C.M. Lee, J.W. Won, Y.S. Na, T. Kawasaki, S. Harjo, and K. An
Subjects: Polymers and Plastics, Metals and Alloys, Ceramics and Composites, Electronic, Optical and Magnetic Materials
Published: 2023

2. Stress partitioning between bcc and cementite phases discussed from phase stress and dislocation density in martensite steels

Author: N. Tsuchida, R. Ueji, W. Gong, T. Kawasaki, and S. Harjo
Subjects: Mechanics of Materials, Mechanical Engineering, Metals and Alloys, General Materials Science, Condensed Matter Physics
Published: 2023

3. 447P Clinical characteristics of 21 patients with type 1 diabetes mellitus related to immune checkpoint inhibitors

Author: H. Kameoka, J. Tauchi, K. Koshiba, M. Uoi, D. Hisamatsu, A. Miyada, S. Takada, T. Hiromasa, R. Matsui, K. Ohashi, and T. Kawasaki
Subjects: Oncology, Hematology
Published: 2022

4. Stopping power measurement for proton therapy by combining proton radiography and X-ray CT

Author: R. Kataura, T. Izumikawa, T. Konno, and T. Kawasaki
Subjects: Nuclear and High Energy Physics, Instrumentation
Published: 2022

5. Short Internal Pancreatic Stent Reduces Pancreatic Fistula in Pancreatoduodenectomy

Author: T. Hirashita, S. Amano, M. Kawamura, A. Fujinaga, H. Nakanuma, T. Kawasaki, Y. Kawano, T. Masuda, Y. Endo, M. Ohta, and M. Inomata
Subjects: Hepatology, Gastroenterology
Published: 2022

6. P-110 Is dexamethasone necessary as a prophylactic antiemetic prior to gemcitabine plus nab-paclitaxel therapy?

Author: T. Otsuru, S. Murata, Hiroyuki Suzuki, Kazuo Watanabe, K. Goda, S. Miyazawa, Masataka Ikeda, M. Takeno, T. Shibuki, K. Morishita, T. Kawasaki, Yusuke Hashimoto, J. Tauchi, Hiroshi Imaoka, Shuichi Mitsunaga, Hidetoshi Eguchi, K. Hayashi, and Mitsuhito Sasaki
Subjects: Oncology, business.industry, medicine.drug_class, Medicine, Antiemetic, Hematology, Pharmacology, business, Gemcitabine, Dexamethasone, Nab-paclitaxel, medicine.drug
Published: 2021

7. Measurement of the Michel parameters (η‾, ξκ ) in the radiative leptonic decay of τ

Author: J. E. Fast, D. Dossett, M. Niiyama, L. Pesántez, V. Trusov, Andrey Sokolov, S. Shinomiya, Byeong Rok Ko, M. Feindt, I. Nakamura, V. Babu, Hui Li, Jingxu Wang, T. Aushev, O. Frost, Z. Suzuki, J. Grygier, J. H. Kang, Y. Miyachi, Hikaru Kawai, M. Belhorn, Benjamin Schwenker, T. Zivko, Y. B. Hsiung, K. Neichi, A. Zupanc, C. C. Zhang, E. Nakano, Antonio Limosani, T. Ferber, D. H. Lee, H. Kakuno, H. Shibuya, M. Watanabe, L. S. Peak, C. Niebuhr, O. Nitoh, K. Nishimura, Chawon Park, A. Loos, J. C. Dingfelder, M. V. Purohit, P. Goldenzweig, Rupert Leitner, V. V. Zhulanov, J. Yamaoka, Xiuwan Li, K. Senyo, S. Eidelman, L. Shang, Ihn Sik Seong, S. Sandilya, K. Ueno, M. Heck, M. J. Kim, T. Kawasaki, P. Pakhlov, W. Ostrowicz, U. Tamponi, Anton Poluektov, T. Schlüter, S. Sugihara, M. Starič, Y. Igarashi, M. Masuda, Dipanwita Dutta, A. Sugiyama, T. Kumita, M. Uchida, X. H. He, D. Cinabro, Philip Lewis, G. B. Mohanty, C. H. Li, Massimo Berger, B. H. Kim, Y. Yook, H. Yamamoto, L. K. Li, V.N. Zhilich, Y. Kato, V. Chobanova, Y. Kuroki, Satoshi Tanaka, D. Liventsev, Y. Arita, I. Jaegle, K. Miyabayashi, M. Lubej, G. Inguglia, I. Badhrees, Y. Koga, E. Nedelkovska, F. Breibeck, H. Park, J. Stypula, C. Kiesling, E. J. White, A. Bozek, P. Chang, G. S. Varner, Y.-T. Lai, K. Suzuki, P. Schonmeier, M. Iwabuchi, R. Mussa, H. B. Jeon, O. Grzymkowska, C. H. Wang, M. Grosse Perdekamp, R. Itoh, Jung-Hyun Kim, S. Wehle, T. Keck, S. Paul, L. Li Gioi, Y. Yamashita, C. Z. Yuan, Yukinori Sato, J. G. Shiu, M. Nayak, T. Bloomfield, A. Ishikawa, A. Drutskoy, S. E. Vahsen, A. Bay, C.-L. Hsu, T. Saito, S. Rummel, T. Matsuda, Yu Nakahama, M. Tanaka, T. Peng, G. Schnell, A. Rostomyan, Tsukasa Aso, P. Wang, H. Miyata, Y. Hoshi, M. Barrett, B. Bhuyan, Y.L. Han, A. Frey, H. Ye, P. Križan, T. Iijima, Jun Sasaki, H. G. Moser, M. Bračko, Y. Iwasaki, B. G. Fulsom, Peter Kodys, W. W. Jacobs, T. E. Browder, Y. J. Kwon, K. Nakamura, Ya-Qiu Jin, P. Hamer, K. Hayasaka, A. Bobrov, H. Hayashii, Hyunyong Kim, O. Schneider, K. Prasanth, M. Imamura, T. Nagamine, K. Trabelsi, P. Katrenko, T. Müller, J. Klucar, K. T. Kim, C. P. Shen, S. Di Carlo, Seok Kim, S. Okuno, B. Shwartz, Jamal Rorie, D. Getzkow, C. B. Van Hulse, I. Adachi, A. Ogawa, K. Negishi, T. Kuhr, D. Z. Besson, E. Ribežl, D. Santel, Phillip Urquijo, N. Sasao, Victoria Zhukova, V. Savinov, M. Danilov, H. Nakayama, D. Y. Kim, R. Gillard, R. Mizuk, Eberhard Widmann, J. F. Strube, Matthew Jones, M. Z. Wang, K. Kinoshita, M. Yamauchi, G. Bonvicini, Y. B. Li, Y. Teramoto, I. Tikhomirov, D. Mohapatra, J. B. Singh, A. Chen, K. Hara, S. K. Choi, Sanmay Ganguly, T. Uchida, Y. Ban, N. Zwahlen, Bruce Yabsley, L. Zhao, M. Heider, M. Rozanska, D. Kotchetkov, Y. Yusa, A. Vinokurova, S. Dubey, Rahul Kumar, J. Libby, R. Louvot, Y. Chao, G. N. Taylor, R. Glattauer, V.E. Shebalin, J. Haba, W. Bartel, S. Nishida, S. Al Said, K. Hoshina, Y. Seino, Y. Onuki, K. Vervink, Z. Drásal, Marko Petrič, M. T. Prim, K. Itagaki, Z. Q. Liu, C. Bookwalter, B. G. Cheon, H. J. Hyun, S. Uozumi, P. Smerkol, Tariq Aziz, X. L. Wang, D. Heffernan, T. Morii, C. Boulahouache, J. Hasenbusch, V. Chekelian, J. Li, V. M. Aulchenko, H. Guo, T.-A. Shibata, T. Horiguchi, Y. Ono, S. Koblitz, Seema Bahinipati, Y. Choi, H. Takeichi, K. J. Nath, S. Uno, C. Schwanda, P. Krokovny, M. T. Hedges, Samo Stanič, L.M. Zhang, E. Kurihara, A.E. Bondar, P.A. Lukin, T. Nakano, K. Dutta, A. Garmash, Daniel Greenwald, M. Takizawa, B. Reisert, Y. Sakai, J. Rauch, B. K. Pal, E. L. Barberio, M. Shapkin, Noritaka Shimizu, T. Hara, L. Santelj, J. Dalseno, Robin Wedd, K. M. Williams, V. Bansal, K. Belous, A. M. Bakich, S. Korpar, Jolanta Brodzicka, John Yelton, T. Ohshima, Z. Doležal, K. Chilikin, Y. J. Kim, N. Dash, S. Iwata, H. Ozaki, H. Nakano, C. Ng, K. H. Kang, K. Cho, K. Inami, M. Sumihama, A. Heller, M. D. Peters, Motoki Iwasaki, Y. Ushiroda, N. Taniguchi, Y. M. Goh, S. H. Lee, K. Prothmann, R. Pestotnik, N. Gabyshev, D. Červenkov, A. Abdesselam, M. Steder, M. E. Sevior, I. S. Lee, D. Matvienko, Y. Miyazaki, R. Sinha, P. K. Behera, Yasushi Nagasaka, B. Kronenbitter, Sumio Yamada, E. Kato, M. Leitgab, Tao Luo, K. Tanida, F. Tenchini, T. Sumiyoshi, A. Bala, D. Epifanov, Soumya D. Mohanty, C. Pulvermacher, Martin Ritter, Dmytro Levit, Z. Natkaniec, S. L. Blyth, T. Sanuki, Shigeki Hirose, K. K. Joo, Hirokazu Miyake, R. Seidl, Y. Guan, E. Solovieva, Norihito Muramatsu, M. Huschle, K. Sakai, Y. Watanabe, S. K. Kim, A.L. Sibidanov, H. Kichimi, M. C. Chang, K. S. Park, V. Bhardwaj, T. K. Pedlar, T. Tsuboyama, H. Palka, L. E. Piilonen, G. Pakhlova, J. Wiechczynski, R. Kulasiri, S. U. Kataoka, S. Yashchenko, A. Moll, S. L. Olsen, D. Joffe, T. Julius, Po-Hsun Chen, R. Chistov, A. Vossen, O. Seon, Frank Simon, D. Semmler, Y. Unno, K. F. Chen, R. Ayad, T. Nozaki, S. Uehara, M. N. Wagner, Peter Kvasnicka, A. B. Kaliyar, Sunmin Ryu, C. W. Park, E. Won, C. Oswald, H. Atmacan, P. Vanhoefer, E. Panzenböck, B. Golob, M. Schram, N. K. Nisar, H. K. Moon, J. S. Lange, M. Ziegler, K. Adamczyk, Y. Soloviev, W. S. Hou, K. Arinstein, Y. Mikami, Alexei Kuzmin, V. Vorobyev, Nagao Kobayashi, Y. F. Liu, C. Kleinwort, Z. P. Zhang, H. Sahoo, Tara Nanut, T. Uglov, Yoji Hasegawa, S. Y. Suzuki, Richard T. Kouzes, K. Sumisawa, D. M. Asner, S. Himori, Kevin Varvell, A. Matyja, Jason Crnkovic, T. Mori, H. Aihara, Y. Usov, Jyoti Prakash Biswal, C. Liu, H. Nakazawa, A. J. Schwartz, H. Farhat, J. B. Kim, T. Higuchi, S. Ogawa, V. Gaur, Y. S. Sohn, Ferdinando Giordano, M. Nakao, E. Waheed, S. McOnie, J. MacNaughton, and P. Kapusta
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Maximum likelihood, Electron–positron annihilation, 01 natural sciences, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, Radiative transfer, Michel parameters, Statistical analysis, 010306 general physics, Collider, Lepton
Abstract: We present the first measurement of the Michel parameters η ‾ and ξκ in the radiative leptonic decay of the τ lepton using 703 fb-1 of data collected with the Belle detector at the KEKB e + e − collider. The Michel parameters are measured by an unbinned maximum likelihood fit to the kinematic information of e + e − → τ + τ − → ( π + π 0 ν ‾ ) ( l − ν ν ‾ γ ) ( l = e or μ ) . The preliminary values of the measured Michel parameters are η ‾ = − 2.0 ± 1.5 ± 0.8 and ξ κ = 0.6 ± 0.4 ± 0.2 , where the first error is statistical and the second is systematic.
Published: 2017

8. Measurement of D0–D‾0 mixing and search for CP violation in D0→K+K−,π+π− decays with the full Belle data set

Author: B. G. Cheon, R. Mussa, A. Ishikawa, S. Uno, R. Itoh, M. Nakao, C. W. Park, Jyoti Prakash Biswal, P. Križan, S. Sandilya, S. Korpar, G. Bonvicini, K. Arinstein, A. Vinokurova, P. Pakhlov, S. H. Kim, P. Krokovny, A. Abdesselam, K. Senyo, K. H. Kang, K. Cho, V. Gaur, B. R. Ko, Vikas Bansal, T. K. Pedlar, A. Moll, Andrey Sokolov, J. G. Shiu, James E. Fast, Y. Yook, J. Dalseno, Philip Lewis, A. Zupanc, C. Van Hulse, T. Keck, Yoshinobu Unno, Phillip Urquijo, M. Ritter, H. Park, A. Bozek, P.A. Lukin, G. Schnell, T. Iijima, M. Uchida, Dipanwita Dutta, Tariq Aziz, Yang Li, Y. Choi, S. Nishida, W. S. Hou, M. Masuda, K. Inami, N. K. Nisar, Y. Sakai, B. Pal, V. Chobanova, M. Z. Wang, K. Kinoshita, U. Tamponi, Y. M. Goh, Youngjoon Kwon, J. Libby, X. H. He, Hiroaki Aihara, G. B. Mohanty, C. Z. Yuan, R. Mizuk, D. Joffe, Peter Kodys, A. Rostomyan, V. Chekelian, V. Vorobyev, H. Hayashii, G. S. Varner, V. Babu, Yongsun Kim, Frank Simon, S. Okuno, J. Haba, C. Schwanda, T. E. Browder, T. Hara, L. E. Piilonen, Marko Petrič, S. Uehara, O. Schneider, A. J. Schwartz, E. Ribežl, V. Savinov, D. Matvienko, B. Golob, Y. Usov, D. M. Asner, P. Wang, M. N. Wagner, S. Yashchenko, H. K. Moon, J. S. Lange, S. Ganguly, V.E. Shebalin, M. Ziegler, T. Julius, B. G. Fulsom, R. Chistov, C. H. Wang, Z. P. Zhang, R. Ayad, Seema Bahinipati, E. Won, T. Sanuki, M. J. Kim, Y. Teramoto, V.N. Zhilich, P. Vanhoefer, K. Trabelsi, M. Starič, C. P. Shen, T. Kumita, D. Cinabro, D. Y. Kim, G. Inguglia, T. Aushev, B.A. Shwartz, I. Adachi, K. M. Williams, Jung-Hyun Kim, T. Ferber, T. Kawasaki, D. A. Epifanov, A. Chen, D. Liventsev, I. Jaegle, K. Miyabayashi, I. Badhrees, Vladimir Zhulanov, J. B. Kim, I. S. Lee, T. Nanut, P. Goldenzweig, R. Glattauer, C. L. Hsu, Mikhail Danilov, K. Chilikin, M. Watanabe, A. Kuzmin, S. Ogawa, A. Garmash, E. Solovieva, R. Pestotnik, H. Farhat, T. Uglov, Y. S. Sohn, M. Steder, G. Pakhlova, L. Li Gioi, A. M. Bakich, Y. Watanabe, L. Pesántez, Z. Natkaniec, R. Gillard, J. Grygier, N. Gabyshev, D. Červenkov, T. A. Shibata, H. Miyata, S.I. Eidelman, M. Sumihama, K. Hayasaka, A.E. Bondar, Z. Doležal, X. L. Wang, C. Kiesling, M. Bračko, and Samo Stanič
Subjects: Nuclear physics, Physics, Data set, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, CP violation, 010306 general physics, 01 natural sciences, Mixing (physics)
Abstract: We report an improved measurement of D0 – D‾0 mixing and a search for CP violation in D0 decays to CP -even final states K+K− and π+π− . The measurement is based on the final Belle data sample of 976 fb −1 . The results are yCP=(1.11±0.22±0.09)% and AΓ=(−0.03±0.20±0.07)% , where the first uncertainty is statistical and the second is systematic.
Published: 2016

9. Background-independent measurement of θ13 in Double Chooz

Author: Z. Djurcic, A. Stahl, M. Kuze, Christian Buck, B. Rybolt, J. Spitz, J. Maricic, Amanda Porta, H. de Kerret, D. Dietrich, R. Santorelli, J. M. López-Castaño, I. M. Pepe, P. Chimenti, Muriel Fallot, P. Novella, C. Grant, Yuri Kamyshkov, T. Matsubara, Y. Sakamoto, L. B. Bezrukov, M. Franke, J. Haser, A.C. Schilithz, V. Zimmer, A. Cucoanes, Florian Kaether, P.-J. Chang, I. Bekman, J. Felde, D. Franco, R. Carr, R. Sharankova, E. Kemp, N. Vassilopoulos, C. Mariani, J. C. dos Anjos, A.V. Etenko, J.V. Dawson, A. Minotti, Yoshio Abe, Josef Jochum, V. Sibille, J. M. LoSecco, M. D. Skorokhvatov, Michael Wurm, H. Watanabe, A. Stüken, F. Sato, F. von Feilitzsch, C. Palomares, I. Gil-Botella, A. Hourlier, Lydie Giot, Audrey Letourneau, E. Damon, M. Röhling, M. Vivier, D. Kryn, Sebastian Wagner, Anselmo Meregaglia, Y. Nikitenko, Daniel M. Kaplan, G. Yang, Marcos Cerrada, M. Elnimr, Manfred Lindner, H. P. Lima, Antoine Collin, J. Reichenbacher, Robert Svoboda, Eric Baussan, S. M. Fernandes, V. V. Sinev, Bayarto Lubsandorzhiev, Marcos Dracos, S. Schönert, T. Sumiyoshi, J. Busenitz, Kazuhiro Terao, Stefan Schoppmann, David Lhuillier, Lothar Oberauer, Thierry Lasserre, G. Mention, J. C. Barriere, L. Camilleri, M. Göger-Neff, M. Obolensky, S. Shimojima, Anatael Cabrera, F. Yermia, Christopher Wiebusch, G. A. Valdiviesso, I. Stancu, Michael Hofmann, Cécile Jollet, B. Reinhold, G. A. Horton-Smith, L. N. Kalousis, T.J.C. Bezerra, Matthew L Strait, H. H. Trinh Thi, M. C. Goodman, S. Roth, Yasushi Nagasaka, H. Furuta, M. H. Shaevitz, E. Conover, G. Pronost, A. Onillon, T. Kawasaki, S. Perasso, S. V. Sukhotin, A. Osborn, E. Smith, J. Maeda, J. Martino, N. Haag, Luis González, L. Goodenough, A. Tonazzo, E. Blucher, T. Miletic, Janet Conrad, R. Milincic, T. Konno, F. Suekane, L.F.F. Stokes, Tobias Lachenmaier, K. Nakajima, R. Roncin, Ying Sun, T. Hara, M. Bergevin, K. Crum, J. I. Crespo-Anadón, V. Fischer, S. Lucht, E. Chauveau, E. Caden, Masaki Ishitsuka, Lindley Winslow, P. Pfahler, C. E. Lane, and C. Veyssiere
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Oscillation, CHOOZ, 7. Clean energy, 01 natural sciences, Nuclear physics, 13. Climate action, 0103 physical sciences, Modulation (music), Neutron, Neutrino, 010306 general physics, Neutrino oscillation, Charged current, Mixing (physics)
Abstract: The oscillation results published by the Double Chooz Collaboration in 2011 and 2012 rely on background models substantiated by reactor-on data. In this analysis, we present a background-model-independent measurement of the mixing angle θ13 by including 7.53 days of reactor-off data. A global fit of the observed antineutrino rates for different reactor power conditions is performed, yielding a measurement of both θ13 and the total background rate. The results on the mixing angle are improved significantly by including the reactor-off data in the fit, as it provides a direct measurement of the total background rate. This reactor rate modulation analysis considers antineutrino candidates with neutron captures on both Gd and H, whose combination yields sin2(2θ13)=0.102±0.028(stat.)±0.033(syst.). The results presented in this study are fully consistent with the ones already published by Double Chooz, achieving a competitive precision. They provide, for the first time, a determination of θ13 that does not depend on a background model.
Published: 2014

10. Aerogel RICH for forward PID at Belle II

Author: T. Iijima, M. Higuchi, H. Takagaki, Makoto Tabata, Hidekazu Kakuno, W. Mori, Keigo Hara, P. Križan, Shuichi Iwata, T. Kumita, Y. Yusa, S. Nishida, Samo Korpar, R. Pestotnik, H. Kawai, A. Seljak, T. Kawasaki, R. Verheyden, S. Ogawa, T. Sumiyoshi, Y. Sakashita, Ichiro Adachi, and Luka Santelj
Subjects: Physics, Nuclear and High Energy Physics, Photon, Spectrometer, Physics::Instrumentation and Detectors, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Avalanche photodiode, Particle identification, Magnetic field, Nuclear physics, Optics, Pion, High Energy Physics::Experiment, Neutron, Nuclear Experiment, business, Instrumentation, Cherenkov radiation
Abstract: For the Belle II spectrometer we are preparing a proximity focusing RICH with aerogel as the radiator. It will be positioned in the forward direction of the spectrometer in the small space between the drift chamber and the electromagnetic calorimeter inside a strong magnetic field of 1.5 T. The Hybrid Avalanche Photo Diode used as a photo sensor, is able to detect single photons with a high efficiency, can operate in the magnetic field and is resistant to the expected neutron and gamma fluxes in the detector. By detecting more than 11 photons per incident 4 GeV/ c pion, with 15 mrad single photon Cherenkov angle resolution, the designed aerogel RICH should enable an efficient separation of kaons from pions in the wide range of particle momenta from 0.5 GeV/ c up to 4 GeV/ c .
Published: 2013

11. Evidence for B¯s0→Λc+Λ¯π−

Author: R. Mizuk, L. E. Piilonen, G. Pakhlova, M. Huschle, R. Mussa, J. E. Fast, S. Yashchenko, D. M. Asner, A. Ishikawa, Y. Unno, P. Krizan, H. Sahoo, T. Uglov, M. Uchida, S. E. Lee, T. Saito, T. Julius, V.N. Zhilich, M. Sumihama, S. Ogawa, Z. P. Zhang, V. Chobanova, D. Liventsev, B. Bhuyan, Y. Choi, I. Adachi, Y. Iwasaki, K. Tanida, Peter Kodys, R. Chistov, J-G Shiu, T. E. Browder, M. Shapkin, L. Santelj, J. Dalseno, T. Aushev, D. Epifanov, G. Schnell, K. Chilikin, C. B. Van Hulse, Andrey Sokolov, Phillip Urquijo, Y. J. Kim, Zdenek Dolezal, T. Iijima, E. Nedelkovska, G. S. Varner, J. Klucar, J. H. Kang, P.A. Lukin, T. Ferber, H. Miyata, Marko Petrič, O. Schneider, A. Zupanc, W. S. Hou, Richard T. Kouzes, V. Savinov, Y. M. Goh, Sanmay Ganguly, O. Nitoh, R. Itoh, M. Danilov, H. Farhat, Y. B. Li, A. M. Bakich, Y. Watanabe, M. Bischofberger, Y. Hoshi, Alexei Kuzmin, J. B. Kim, V. Bhardwaj, T. K. Pedlar, H. J. Hyun, P. Smerkol, A. Rostomyan, P. Wang, D. Santel, S. Uehara, Y. Sakai, K. T. Kim, Rahul Kumar, T. Kuhr, T. Tsuboyama, S. Eidelman, P. Pakhlov, Kevin Varvell, R. Gillard, S. L. Olsen, Y. Yook, B. Shwartz, J. B. Singh, K. Prothmann, G. B. Mohanty, R. Pestotnik, Byeong Rok Ko, Ho Kim, E. Solovieva, E. Nakano, Martin Ritter, Y. S. Sohn, D. Matvienko, Y. Usov, Sunmin Ryu, T. Sanuki, Satoshi Tanaka, C. P. Shen, Z. Drásal, S. Sandilya, E. Won, M. J. Kim, V. Gaur, H. Park, G. Bonvicini, Dipanwita Dutta, A. Bozek, M. Nakao, B. G. Cheon, M. Starič, C. Kiesling, A. Vinokurova, D. Y. Kim, A.E. Bondar, J. Li, T. Kumita, A.L. Sibidanov, K. Senyo, P. Krokovny, K. M. Williams, A. Drutskoy, T. Kawasaki, Markus Roehrken, J. Haba, G. Tatishvili, K. Cho, M. Bračko, S. Nishida, S. Uno, C. Schwanda, S. Korpar, V. Chekelian, M. N. Wagner, M. Watanabe, B. Golob, S. Okuno, N. K. Nisar, Y. Teramoto, Bruce Yabsley, M. Z. Wang, K. Kinoshita, U. Tamponi, Y-J Kwon, J. S. Lange, Samo Stanič, D. Cinabro, T. Shibata, I. Tikhomirov, A. Chen, M. E. Sevior, C. H. Wang, H. K. Park, Y. Yamashita, D. H. Kah, Y. B. Hsiung, and A. Bala
Subjects: Physics, Nuclear and High Energy Physics, Higher education, 010308 nuclear & particles physics, business.industry, Atomic energy, Library science, 01 natural sciences, Science research, 0103 physical sciences, Agency (sociology), Christian ministry, Education science, 010306 general physics, China, business, Research center
Abstract: We thank the KEKB group for the excellent operation of the accelerator, the KEK cryogenics group for the efficient operation of the solenoid, and the KEK computer group and the National Institute of Informatics for valuable computing and SINET4 network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council and the Australian Department of Industry, Innovation, Science and Research; the National Natural Science Foundation of China under contract Nos. 10575109, 10775142, 10875115 and 10825524; the Ministry of Education, Youth and Sports of the Czech Republic under contract Nos. LA10033 and MSM0021620859; the Department of Science and Technology of India; the BK21 and WCU program of the Ministry Education Science and Technology, National Research Foundation of Korea, and NSDC of the Korea Institute of Science and Technology Information; the Polish Ministry of Science and Higher Education; the Ministry of Education and Science of the Russian Federation and the Russian Federal Agency for Atomic Energy; the Slovenian Research Agency; the Swiss National Science Foundation; the National Science Council and the Ministry of Education of Taiwan; and the U.S. Department of Energy and the National Science Foundation. This work is supported by a Grant-in-Aid from MEXT for Science Research in a Priority Area ("New Development of Flavor Physics"), and from JSPS for Creative Scientific Research ("Evolution of Taulepton Physics").
Published: 2013

12. The investigation of strangeness photoproduction in the threshold region at ELPH-Tohoku

Author: Y. Kaneko, S. Kiyokawa, Tadaaki Tamae, Yuma Kasai, T. Fujibayashi, Kazushige Maeda, M. Sotona, T. Kawasaki, Ryotaro Honda, Takeshi Koike, Hiromichi Yamazaki, Brian Beckford, Osamu Hashimoto, Hirokazu Tamura, N. Terada, Koji Miwa, C. Kimura, P. Bydžovský, T. Ishikawa, Hiroki Kanda, Masashi Kaneta, Kenta Futatsukawa, Y. C. Han, M. Matsubara, A. Okuyama, T. Fujii, Y. Miyagi, Kentaro Hirose, N. Maruyama, T. O. Yamamoto, K. Hosomi, A. Iguchi, Toshiyuki Gogami, Sho Nagao, Kyo Tsukada, Satoshi Nakamura, T. Wang, Y. Fujii, and F. Yamamoto
Subjects: Nuclear physics, Nuclear reaction, Physics, Baryon, Nuclear and High Energy Physics, Meson, Hadron, Neutron, Strangeness, Atomic physics, Nucleon, Sigma baryon
Abstract: The strangeness photoproduction processes near the threshold have been intensively studied by measuring K + in reactions such as γ + p → K + + Λ ( Σ 0 ) . There has been no reliable data on the neutron and as a consequence theoretical investigation suffered seriously from the lack of the data. We have an effort to measure the γ + d → K 0 ( Λ ) + X reaction in the π + π − ( p π − ) decay channel of K S 0 (Λ) using a liquid D2 target and internally-tagged photon beams ( E γ = 0.80 – 1.08 GeV ) at Research Center for Electron Photon Science (ELPH), Tohoku University. We have renewed the spectrometer (NKS2) and took data with a liquid D2 target in 2005–2007. More recently, we took data in 2010 after a detector upgrade in the vertex region to substantially increase the acceptance. The results of Λ single measurements on a deuterium target were obtained for differential cross-section as a function of momentum, as a function of angle, and integrated cross-section as a function of beam energy. The results are compared with recent theoretical studies: Isobar models (Kaon-MAID and Saclay-Lyon A) and a Regge-plus-Resonance model.
Published: 2013

13. First measurement of θ13 from delayed neutron capture on hydrogen in the Double Chooz experiment

Author: J. Maricic, A. Onillon, S. Roth, S. M. Fernandes, J. M. LoSecco, Anselmo Meregaglia, A. Hatzikoutelis, Masahiro Kuze, Th. A. Mueller, R. Santorelli, H. H. Trinh Thi, L. Camilleri, T. Hayakawa, J. Tm. Goon, V. V. Sinev, W. Potzel, M. Franke, I. M. Pepe, P. Chimenti, Matthew L Strait, T. Konno, I. Gil-Botella, Z. Djurcic, T. Matsubara, M. Fechner, Robert Svoboda, R. Roncin, Ying Sun, F. Suekane, L.F.F. Stokes, J. M. López-Castaño, Michael Hofmann, M. Toups, G. Keefer, Muriel Fallot, T. Classen, Steven Dazeley, H. P. Lima, A.V. Etenko, D. Kryn, J.V. Dawson, Amanda Porta, M. Röhling, T. Hara, M. Elnimr, J. Busenitz, R. Carr, Florian Kaether, M. Worcester, J. Felde, D. Franco, I. Stancu, D. Greiner, H. Furuta, B. White, H. de Kerret, Stefan Schoppmann, A. Remoto, C. Aberle, A. Cucoanes, M. Göger-Neff, G. Mention, E. Damon, S. Perasso, J. Ebert, Sebastian Wagner, Manfred Lindner, F. Hartmann, C. Mariani, Antoine Collin, E. Blucher, Josef Jochum, Yasushi Nagasaka, V. Durand, Daniel M. Kaplan, I. Ostrovskiy, P. Novella, L. Bezrukhov, F. von Feilitzsch, G. Pronost, K. Nakajima, Cécile Jollet, B. Reinhold, C. Langbrandtner, Tobias Lachenmaier, Adam Bernstein, P. Perrin, J. Maeda, L. Goodenough, Lothar Oberauer, A. Letourneau, A. Tonazzo, P. Pfahler, C. E. Lane, V. Zimmer, T. Kawasaki, S. Lucht, V. Fischer, R. Milincic, T. Sumiyoshi, E. Caden, A. J. Franke, J. Martino, M. Bergevin, Masaki Ishitsuka, Lindley Winslow, K. Crum, A. Osborn, A. Stahl, J. L. Sida, J. I. Crespo-Anadón, J. Reichenbacher, J. C. dos Anjos, A. Stüken, F. Sato, Yoshio Abe, C. Veyssiere, D. Shrestha, Yuri Kamyshkov, D. McKee, J. Spitz, P.-J. Chang, Marcos Cerrada, Yu. Efremenko, Caren Hagner, M. D. Skorokhvatov, Michael Wurm, H. Watanabe, M. Obolensky, L. N. Kalousis, T.J.C. Bezerra, R. Gama, Bayarto Lubsandorzhiev, Thierry Lasserre, J. C. Barriere, Manuel Meyer, Marcos Dracos, S. V. Sukhotin, E. Smith, N. Haag, Anna Erickson, J. Haser, T. Miletic, S. Habib, D. Lhuillier, Y. Sakamoto, F. Yermia, Anatael Cabrera, E. Conover, C. L. Jones, M. H. Shaevitz, A. Hourlier, Lydie Giot, E. Kemp, S. Schönert, S. Shimojima, G. A. Horton-Smith, Luis González, Nathaniel Bowden, Thomas Schwetz, Janet Conrad, C. Palomares, Kazuhiro Terao, Christopher Wiebusch, G. A. Valdiviesso, M. C. Goodman, H. Miyata, Christian Buck, B. Rybolt, C. N. Maesano, and D. Dietrich
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Flux, Photon energy, CHOOZ, 01 natural sciences, Nuclear physics, Neutron capture, Inverse beta decay, 0103 physical sciences, 010306 general physics, Neutrino oscillation, Delayed neutron, Charged current
Abstract: The Double Chooz experiment has determined the value of the neutrino oscillation parameter $\theta_{13}$ from an analysis of inverse beta decay interactions with neutron capture on hydrogen. This analysis uses a three times larger fiducial volume than the standard Double Chooz assessment, which is restricted to a region doped with gadolinium (Gd), yielding an exposure of 113.1 GW-ton-years. The data sample used in this analysis is distinct from that of the Gd analysis, and the systematic uncertainties are also largely independent, with some exceptions, such as the reactor neutrino flux prediction. A combined rate- and energy-dependent fit finds $\sin^2 2\theta_{13}=0.097\pm 0.034(stat.) \pm 0.034 (syst.)$, excluding the no-oscillation hypothesis at 2.0 \sigma. This result is consistent with previous measurements of $\sin^2 2\theta_{13}$.
Published: 2013

14. EP-1339: Influence of leaf thickness on prostate VMAT about dosimeto-volumetoric and delivering parameters

Author: H. Yokoyama, K. Ishizuka, T. Ogawa, T. Kawasaki, Y. Kishida, M. Katou, M. Watanabe, T. Shimo, M. Nakanishi, H. Hashimoto, and H. Nagano
Subjects: medicine.medical_specialty, medicine.anatomical_structure, Oncology, Prostate, business.industry, Radiology Nuclear Medicine and imaging, medicine, Urology, Radiology, Nuclear Medicine and imaging, Hematology, business
Published: 2016
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15. Integrated experiments of fast ignition targets by Gekko-XII and LFEX lasers

Author: Koji Tsubakimoto, Takeshi Watari, K. Sawai, Ryosuke Kodama, Hitoshi Sakagami, Masakatsu Murakami, Mayuko Koga, Kazuo Tanaka, Takahiro Nagai, Y. Fujii, T. Kawasaki, H. Kikuchi, Takayoshi Norimatsu, J. Kawanaka, S. Matsuo, Y. Ishii, Mitsuo Nakai, T. Ozaki, Hirotaka Nakamura, K. Mima, Ko. Kondo, Toshihiko Shimizu, Yasunobu Arikawa, Takahisa Jitsuno, Atsushi Sunahara, S. Ohira, K. Tsuji, Yoichi Sakawa, Hiroyuki Shiraga, Minoru Tanabe, N. Miyanaga, Hideo Nagatomo, Toshihiro Taguchi, Tomoyuki Johzaki, Hiroaki Nishimura, Y. Fujimoto, Akifumi Iwamoto, T. Iwawaki, N. Morio, T. Kanabe, Hideaki Habara, T. Namimoto, H. Hosoda, K. Shimada, Hiroshi Azechi, Nobuhiko Sarukura, H. Murakami, T. Sogo, H. Homma, O. Maegawa, Yoshiki Nakata, Keisuke Shigemori, Shinsuke Fujioka, Keiichi Sueda, and Zhe Zhang
Subjects: Nuclear and High Energy Physics, Radiation, Materials science, business.industry, Implosion, Plasma, Laser, law.invention, Ignition system, Optics, law, Plasma diagnostics, Neutron, Atomic physics, business, Inertial confinement fusion, Beam (structure)
Abstract: Implosion and heating experiments at the Institute of Laser Engineering, Osaka University on Fast Ignition (FI) targets for the FIREX-1 project have been performed with Gekko-XII laser for implosions and LFEX laser for heating. We tried to reduce the prepulse level in the LFEX laser system and have improved the plasma diagnostics to observe the plasma in the harsh hard X-ray environment. A plastic (CD) shell target, 7-μm thick and 500 μm in diameter with a hollow gold cone was used in this experiment to guide the short-pulse laser at the time of the maximum compression. The shell target was imploded with 9 or 12 beams of Gekko-XII laser (527 nm) with energy of 300 J/beam in a 1.5 ns pulse. Two of the four LFEX laser (1053 nm) beams were injected into the inside bottom of the cone with an energy up to 0.7 kJ/beam in a 1.5 ps pulse at the time around the maximum implosion. We have observed neutron enhancement up to 3.5 × 107 with total heating energy of 300 J, which is higher than the yield obtained in the previous experiment in 2002 [R. Kodama et al. Nature 418, 933 (2002)]. We found the estimated heating efficiency is at a level of 10–20%. Fuel heating to 5 keV is expected when the full output of LFEX is used.
Published: 2012

16. The short pulse width stimulation is hard to cause ICD/DDS symptom after STN-DBS

Author: Hitaru Kishida, Y. Okamoto, Naohisa Ueda, K. Katsuo, N. Higashiyama, Fumiaki Tanaka, K. Hamada, M. Okamoto, Hideto Joki, T. Kawasaki, Y. Higuchi, Hideyuki Takeuchi, Shigeru Koyano, and Hiroshi Doi
Subjects: medicine.medical_specialty, Neurology, business.industry, Internal medicine, medicine, Cardiology, Stimulation, Neurology (clinical), business, Pulse-width modulation
Published: 2017

17. Study of B±→K±(KSKπ)0 decay and determination of ηc and ηc(2S) parameters

Author: V.N. Zhilich, Ping Zhou, S. Nishida, Satoshi Tanaka, K. Miyabayashi, A. M. Bakich, Z. Natkaniec, T. Ohshima, Kevin Varvell, A. Matyja, C. Liu, V. Gaur, S. McOnie, A. Ishikawa, H. J. Kim, J. G. Shiu, J. Dalseno, I. Tikhomirov, K. M. Williams, A. Chen, Y. Usov, A. Vossen, M. Uchida, D. Liventsev, Y. J. Kwon, M. C. Chang, O. Seon, Frank Simon, C. W. Park, P. Križan, Z. P. Zhang, H. O. Kim, K. Arinstein, R. Mizuk, G. S. Varner, Marko Petrič, H. J. Hyun, P. Smerkol, R. Itoh, T. E. Browder, J. Li, Y. Chao, Rakesh Kumar, A. Garmash, P. Wang, M. Danilov, O. Schneider, M. Iwabuchi, A.E. Bondar, D. Matvienko, Y. Miyazaki, K. Inami, O. Nitoh, B.A. Shwartz, B. Golob, Y. S. Sohn, P. Pakhlov, H. Nakazawa, E. Nakano, D. Epifanov, B. R. Ko, N. Gabyshev, Y. Watanabe, Anton Poluektov, M. Shapkin, A. Bozek, T. Sumiyoshi, Sang Hoon Lee, B. G. Cheon, Vladimir Zhulanov, Z. Doležal, M. Röhrken, Y. Unno, M. Watanabe, V. Bhardwaj, A. Moll, Vladislav Balagura, C. Z. Yuan, Y. Yamashita, G. Pakhlova, J. Haba, H. Hayashii, K. Senyo, C. L. Lim, Y. Sakai, T. Kawasaki, H. Ha, R. Pestotnik, K. Belous, Jolanta Brodzicka, Andrey Sokolov, P. Kapusta, S. Okuno, Yongsun Kim, T. Julius, Po-Hsun Chen, J. H. Kang, Sunmin Ryu, R. Chistov, K. Kinoshita, H. Sahoo, S. Uno, C. Schwanda, E. Won, S. H. Kyeong, Anze Zupanc, T. Aushev, A. Vinokurova, M. Sumihama, E. Solovieva, S. K. Choi, T. Uglov, I. S. Cho, Y. Teramoto, Bruce Yabsley, R. Louvot, K. Cho, V.E. Shebalin, C. H. Wang, W. S. Hou, Yasuyuki Horii, M. J. Kim, Samo Stanič, V.M. Aulchenko, C. Kiesling, E. L. Barberio, M. J. Lee, O. Zyukova, M. Bračko, M. Starič, T. Kumita, L. E. Piilonen, A. Kuzmin, H. Miyata, Y. Hoshi, S.I. Eidelman, Yang Li, Y. Choi, S. L. Olsen, G. B. Mohanty, T. Iijima, Y. B. Hsiung, T. Iwashita, K. Trabelsi, and C. P. Shen
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, KEKB, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, 010306 general physics, 01 natural sciences, Belle experiment
Abstract: We report the results of a study of B KIrk and /II K tic(2S) decays followed by qc and '/c(2S) decays to (K5K7). The results are obtained from a data sample containing 535 million BB-meson pairs collected by the Belle experiment at the KEKB e+e- collider. We measure the products of the branching fractions B(B > IC7ic)13(71, Ks K 7T) = (26.7 1.4(stat)+N(syst) 4.9(model)) x 10-6 and 8(B -+ K 71c(25))8(rIc(2S) Ksi(7tT) = (3.4+N(stat + model)t(syst)) x 10-6. Interference with the non-resonant component leads to significant model uncertainty in the measurement of these product branching fractions. Our analysis accounts for this interference and allows the model uncertainty to be reduced. We also obtain the following charmonia masses and widths: MO/c) = (2985.4 1.5(stat)1:8(syst)) MeV /c2, r(t1c)= (35.1 3.1(sta0+1:2(syst)) MeV/c2, M(ric (2S)) = (3636.111(stat + model)+3:70 (syst)) MeV/c2, r (17c (2S)) = (6.61:1(stat + model)11(syst)) MeV/c2. C) 2011 Elsevier B.V. All rights reserved.
Published: 2011

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

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

19. Stability of Gd-loaded liquid scintillator for reactor neutrino detection

Author: M. Katsumata, H. Miyata, T. Kawasaki, and N. Tamura
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Precipitation (chemistry), Yield (chemistry), Liquid scintillation counting, Analytical chemistry, Reactor neutrino, Scintillator, Neutrino, Instrumentation, Instability
Abstract: Gd-loaded liquid scintillators are promising tools for detection of anti-electron neutrinos, yet their stability remains a concern for neutrino experiments. This study investigated the instability of a Gd-loaded liquid scintillator and found that Gd precipitated and light yield decreased due to oxidation. The precipitation not only reduced transmission but also decreased the Gd concentration. However, when the antioxidant 2,6-di-tert-butyl-4-methylphenol (BHT) was added to the liquid scintillator, we obtained a stable liquid scintillator at room temperature.
Published: 2011

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

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

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

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

22. Measurement of cross sections of exclusive e+e−→VP processes at s=10.58 GeV

Author: Anton Poluektov, H. Kawai, Y. Chao, V.M. Aulchenko, E. L. Barberio, P. Pakhlov, S. Uehara, O. Zyukova, S. Uno, C. Schwanda, Yasushi Nagasaka, H. Ha, N. Katayama, M. Iwasaki, S. Okuno, R. Louvot, V.E. Shebalin, A. Bozek, K. Trabelsi, C. P. Shen, Y. Teramoto, Bruce Yabsley, Samo Stanič, K. Arinstein, R. Mizuk, S. Nishida, I. Adachi, D. Epifanov, A. M. Bakich, Antonio Limosani, Soohyung Lee, A.E. Bondar, K. Belous, T. Ohshima, E. Won, B. R. Ko, K. Vervink, Y. I. Kim, G. N. Taylor, Yoshinobu Unno, P. Chang, N. Gabyshev, Vladislav Balagura, I. S. Cho, J. G. Shiu, T. Iijima, Jung-Hyun Kim, K. Senyo, T. E. Browder, Hitoshi Yamamoto, V.N. Zhilich, Y. Watanabe, T. Kawasaki, M. Dash, Y. J. Kwon, Rakesh Kumar, O. Schneider, D. H. Kah, C. H. Wang, H. O. Kim, A. Ishikawa, A. Bay, A. Vinokurova, C. W. Park, A.S. Kuzmin, P. Križan, W. Bartel, D. Liventsev, T. Zivko, P. Krokovny, S. K. Choi, W. S. Hou, A. Drutskoy, M. Shapkin, Robin Wedd, K. Inami, G. S. Varner, T. Sumiyoshi, Jeremy Dalseno, Y. J. Kim, Andrey Sokolov, M. J. Lee, H. Ozaki, Chang Liu, Kevin Varvell, R. Itoh, M. Bračko, Yasuyuki Horii, P. Wang, A. Matyja, H. Miyata, M. Starič, H. K. Park, Y. Yamashita, M. Bischofberger, L. E. Piilonen, G. Pakhlova, Y. Hoshi, T. Mori, Y. Usov, N. J. Joshi, R. Pestotnik, S. H. Kyeong, B. G. Cheon, S. McOnie, A. Zupanc, A. Chen, O. Nitoh, Hiroaki Aihara, J. Stypula, H. J. Hyun, Y. Choi, S.I. Eidelman, Y. Sakai, T. Lesiak, B.A. Shwartz, Vladimir Zhulanov, M. E. Sevior, and A. Garmash
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, 01 natural sciences, 7. Clean energy, law.invention, Nuclear physics, KEKB, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: The cross sections for the reactions e+ e- → φ{symbol} η, φ{symbol} η′, ρη, ρ η′ have been measured using a data sample of 516 fb- 1 collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. The corresponding values of the cross sections are: 1.4 ± 0.4 ± 0.1 fb (φ{symbol} η), 5.3 ± 1.1 ± 0.4 fb (φ{symbol} η′), 3.1 ± 0.5 ± 0.1 fb (ρ η) and 3.3 ± 0.6 ± 0.2 fb (ρ η′). The energy dependence of the cross sections is presented using Belle measurements together with those of CLEO and BaBar. © 2009 Elsevier B.V.
Published: 2009

23. Search for lepton-flavor-violating τ decay into a lepton and an f0(980) meson

Author: M. Tanaka, I. Adachi, O. Nitoh, H. Kaji, D. Heffernan, Y. Watanabe, T. Iijima, Rakesh Kumar, D. H. Kah, H. Aihara, Y. Sakai, D. Epifanov, H. Kawai, B. G. Cheon, B. Shwartz, E. Nakano, Kazuhiko Hara, F. Mandl, Vladimir Zhulanov, K. Senyo, T. Zivko, J. Haba, C. P. Shen, L. E. Piilonen, T. Kawasaki, S. Uehara, Y. Choi, H. Ha, A. Bondar, Z. P. Zhang, H. O. Kim, S. Korpar, Y. Usuki, S. Okuno, M. Bračko, O. Zyukova, J. Dalseno, T. Aushev, H. Miyata, D. Liventsev, Y. Hoshi, M. Dash, M. Starič, J. G. Shiu, Y. Teramoto, A. Drutskoy, K. Inami, Bruce Yabsley, A. M. Bakich, T. Ohshima, Tatiana Medvedeva, G. S. Varner, S. Uno, K. Hayasaka, N. Gabyshev, H. Kichimi, T. Sumiyoshi, A. Vinokurova, M. Nakao, P. Wang, I. S. Cho, S. McOnie, Motoki Iwasaki, Yasuyuki Horii, G. N. Taylor, P. Krokovny, Y. Unno, H. Sahoo, Y. Iwasaki, R. Louvot, Anton Poluektov, T. Uglov, O. Schneider, P. Goldenzweig, C. H. Wang, H. Hayashii, H. K. Park, E. Won, Y. Yamashita, Samo Stanič, A. Kuzmin, V.N. Zhilich, M. Shapkin, Y. J. Kim, S. Ogawa, H. Ozaki, T. Nagamine, S. H. Kyeong, W. S. Hou, K. Arinstein, Y. Yusa, R. Pestotnik, A. Ishikawa, A. Bay, C. W. Park, P. Križan, H. Nakazawa, I. Bedny, J. Li, H. J. Hyun, Y. Miyazaki, I. Tikhomirov, A. Chen, U. Bitenc, S. Eidelman, H. Park, A. Bozek, X. L. Wang, Joowon Lee, T. E. Browder, and A. Zupanc
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Meson, Branching fraction, Electron–positron annihilation, Electron, law.invention, Nuclear physics, KEKB, law, Collider, Lepton
Abstract: We search for lepton-flavor-violating τ decays into a lepton (electron or muon) and an f0 (980) meson using 671 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No events are observed and we set the following 90% C.L. upper limits on the branching fraction products: B (τ- → e- f0 (980)) × B (f0 (980) → π+ π-) < 3.2 × 10- 8 and B (τ- → μ- f0 (980)) × B (f0 (980) → π+ π-) < 3.4 × 10- 8. This is the first search performed for these modes. © 2009 Elsevier B.V.
Published: 2009

24. Study of Ωc0 and Ωc∗0 baryons at Belle

Author: Y. Iwasaki, Y. J. Kwon, Joowon Lee, O. Schneider, T. E. Browder, H. J. Hyun, M. Danilov, L. S. Peak, Vladimir Zhulanov, Y. Miyazaki, M. E. Sevior, A. Zupanc, M. Starič, J. H. Kang, M. Yamauchi, O. Nitoh, S. Eidelman, Vladislav Balagura, P. Pakhlov, D. Liventsev, H. K. Park, J. G. Shiu, Y. Sakai, K. Inami, G. S. Varner, A. Kuzmin, Y. Yamashita, E. Solovieva, Phillip Urquijo, W. S. Hou, H. Kichimi, R. Itoh, K. Arinstein, P. Chang, S. Ogawa, T. Lesiak, P. Wang, Yu. V. Usov, S. Nishida, M. Tanaka, P. Krokovny, O. Zyukova, Masashi Hazumi, X. L. Wang, K. Miyabayashi, S. H. Kyeong, A. Ishikawa, S. K. Choi, S. E. Lee, P. Križan, Y. I. Kim, S. Okuno, M. J. Lee, K. Kinoshita, H. Sahoo, E. Won, B. G. Cheon, M. Bračko, D. Heffernan, T. Uglov, T. Aushev, I. S. Cho, G. N. Taylor, Hirokazu Ishino, Y. Teramoto, Bruce Yabsley, A. M. Bakich, T. Ohshima, K. Senyo, M. Dash, C. H. Wang, U. Bitenc, H. Kawai, A. Bondar, T. Kawasaki, Y. Choi, J. S. Lange, J. Dalseno, I. Tikhomirov, S. Korpar, Jolanta Brodzicka, A. Chen, Yasushi Nagasaka, Samo Stanič, M. Shapkin, Y. J. Kim, Rakesh Kumar, H. Palka, L. E. Piilonen, G. Pakhlova, R. Chistov, T. Sumiyoshi, S. Noguchi, S. Uehara, H. Ha, N. Katayama, R. Mizuk, Y. Unno, I. Adachi, H. Miyata, Y. Hoshi, K. Hayasaka, D. H. Kah, T. Zivko, Y. B. Hsiung, Z. P. Zhang, H. O. Kim, A. Matyja, H. Aihara, C. Liu, M. Nakao, Y. Watanabe, S. McOnie, H. J. Kim, Motoki Iwasaki, S. Uno, and C. Schwanda
Subjects: Nuclear physics, Baryon, Physics, Nuclear and High Energy Physics, Particle physics, KEKB, 010308 nuclear & particles physics, law, 0103 physical sciences, 010306 general physics, Collider, 01 natural sciences, law.invention
Abstract: We report results from a study of the charmed double strange baryons Ωc 0 and Ωc * 0 at Belle. The Ωc 0 is reconstructed using the Ωc 0 → Ω- π+ decay mode, and its mass is measured to be (2693.6 ± 0.3-1.5 +1.8) MeV / c2. The Ωc * 0 baryon is reconstructed in the Ωc 0 γ mode. The mass difference MΩc* 0 - MΩc0 is measured to be (70.7 ± 0.9-0.9 +0.1) MeV / c2. The analysis is performed using 673 fb-1 of data on and near the Υ{hooked} (4 S) collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. © 2008 Elsevier B.V. All rights reserved.
Published: 2009

25. Search for a CP asymmetry in Cabibbo-suppressed D0 decays

Author: Y. Sakai, H. Miyata, J. G. Shiu, H. Kichimi, Y. Hoshi, T. Tsuboyama, T. Lesiak, J. Schümann, K. Hayasaka, Phillip Urquijo, H. Palka, M. Tanaka, L. E. Piilonen, G. Pakhlova, K. F. Chen, A. Zupanc, D. Heffernan, D. Liventsev, F. Mandl, S. Uehara, M. E. Sevior, H. Ha, O. Nitoh, G. S. Varner, M. Shapkin, Andrey Sokolov, R. Chistov, Masashi Hazumi, Hiroaki Aihara, R. Itoh, D. H. Kah, I. Adachi, C. Z. Yuan, Y. J. Kim, P. Wang, Yu. V. Usov, H. Sahoo, T. Uglov, Yoji Hasegawa, Antonio Limosani, C. C. Zhang, Y. Chao, O. Zyukova, M. Iwasaki, T. Zivko, Zhenyu Zhang, H. Ozaki, K. Vervink, Rakesh Kumar, H. K. Park, Y. Yamashita, Yoshinobu Unno, M. Nakao, S. McOnie, E. Nakano, S. H. Kyeong, T. Sumiyoshi, Jeremy Dalseno, S. K. Kim, G. R. Moloney, H. Kaji, S. Fratina, Hirokazu Ishino, I. S. Cho, P. Chang, J. Haba, H. O. Kim, E. L. Barberio, R. Pestotnik, K. Trabelsi, L. S. Peak, Jasvinder A. Singh, Yu-xi Liu, P. Krokovny, Yasushi Nagasaka, S. Okuno, Y. Choi, W. Dungel, C. H. Wang, A. Bondar, K. Belous, S. Korpar, Jolanta Brodzicka, S. Uno, C. Schwanda, T. Aushev, Y. Watanabe, Y. Teramoto, Bruce Yabsley, A. Ishikawa, A. Bay, T. Hara, S. E. Lee, T. Nozaki, A. Matyja, F. Takasaki, C. W. Park, A. Somov, B. Shwartz, P. Križan, T. Mori, I. Bedny, A.S. Kuzmin, M. Starič, B. G. Cheon, A. Chen, U. Bitenc, Y. J. Kwon, H. J. Hyun, O. Schneider, Y. Miyazaki, T. E. Browder, S. Eidelman, P. Pakhlov, H. Park, A. Bozek, A. Sekiya, S. Nishida, X. L. Wang, Y. I. Kim, K. Kinoshita, G. N. Taylor, Anton Poluektov, H. Hayashii, K. Inami, A. M. Bakich, Z. Natkaniec, T. Ohshima, N. Gabyshev, Samo Stanič, K. Senyo, T. Kawasaki, M. J. Lee, M. Bračko, H. Nakazawa, W. S. Hou, A. J. Schwartz, H. J. Kim, K. Arinstein, Chang Liu, M. Dash, B. Golob, V. Bhardwaj, J. S. Lange, V.N. Zhilich, E. Won, Tadashi Nagamine, and K. Miyabayashi
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, media_common.quotation_subject, Detector, Measure (physics), 01 natural sciences, Resonance (particle physics), Asymmetry, Nuclear physics, 0103 physical sciences, CP violation, 010306 general physics, media_common
Abstract: We measure the CP-violating asymmetries in decays to the D0 → K+ K- and D0 → π+ π- CP eigenstates using 540 fb-1 of data collected with the Belle detector at or near the Υ{hooked} (4 S) resonance. Cabibbo-favored D0 → K- π+ decays are used to correct for systematic detector effects. The results, ACP K K = (- 0.43 ± 0.30 ± 0.11) % and ACP π π = (+ 0.43 ± 0.52 ± 0.12) %, are consistent with no CP violation. © 2008 Elsevier B.V. All rights reserved.
Published: 2008

26. Study of intermediate two-body decays in B¯0→Σc(2455)0p¯π+

Author: A. Ishikawa, C. W. Park, P. Križan, J. H. Kang, Joowon Lee, A. M. Bakich, Z. Natkaniec, T. Ohshima, D. Liventsev, T. Iijima, J. G. Shiu, H. Nakazawa, T. E. Browder, Y. Watanabe, A. Zupanc, J. B. Singh, G. S. Varner, A. Somov, N. Gabyshev, O. Nitoh, M. Tanaka, I. Bedny, Phillip Urquijo, B. Shwartz, R. Itoh, K. Inami, U. Bitenc, D. H. Kah, E. Won, P. Chang, S. W. Lin, M. Nakao, P. Wang, Yu. V. Usov, S. Eidelman, T. Zivko, S. McOnie, M. Z. Wang, Y. Unno, H. J. Kim, D. Heffernan, O. Zyukova, Rakesh Kumar, H. Miyata, A. Kuzmin, I. S. Cho, Y. Hoshi, H. J. Hyun, V.N. Zhilich, G. N. Taylor, D. Epifanov, S. Ogawa, S. Uehara, H. Ha, K. Hayasaka, H. Park, A. Bozek, L. E. Piilonen, N. Katayama, B. G. Cheon, Y. Miyazaki, M. Dash, Masashi Hazumi, Anton Poluektov, S. Okuno, K. S. Park, I. Adachi, V. M. Aulchenko, A. Matyja, C. H. Wang, Vladimir Zhulanov, S. Nishida, H. K. Park, Y. Yamashita, S. Uno, H. Sahoo, Vladislav Balagura, M. E. Sevior, T. Aushev, M. Shapkin, K. Senyo, K. Miyabayashi, X. L. Wang, H. Aihara, V.E. Shebalin, R. Chistov, Samo Stanič, T. Kawasaki, Y. J. Kim, Y. I. Kim, Y. Teramoto, A. Bondar, S. Korpar, T. Sumiyoshi, W. S. Hou, Y. Chao, A. Vinokurova, K. Arinstein, R. Pestotnik, M. Yamauchi, P. Krokovny, H. Kichimi, Z. P. Zhang, Y. Sakai, T. Lesiak, Y. Choi, H. O. Kim, M. J. Lee, J. Dalseno, M. Bračko, Motoki Iwasaki, L. S. Peak, M. Starič, Y. Iwasaki, Y. J. Kwon, O. Schneider, and H. Kawai
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Electron–positron annihilation, Analytical chemistry, Resonance, 01 natural sciences, Baryon, Nuclear physics, KEKB, 0103 physical sciences, B meson, Invariant mass, 010306 general physics
Abstract: We present results of a detailed study of the three-body over(B, )0 → Σc (2455)0 over(p, ) π+ decay. A significant enhancement of signal events is observed in the over(p, ) π+ invariant mass distribution near 1.5 GeV / c2 that is consistent with the presence of an intermediate baryonic resonance over(N, )0, where over(N, )0 is the over(N, ) (1440)0 P11 or over(N, ) (1535)0 S11 state, or an admixture of the two states. We measure the product B (over(B, )0 → Σc (2455)0 over(N, )0) × B (over(N, )0 → over(p, ) π+) = (0.80 ± 0.15 (stat .) ± 0.14 (syst .) ± 0.21) × 10-4, where the last error is due to the uncertainty in B (Λc + → p K- π+). The significance of the signal is 6.1 standard deviations. This analysis is based on a data sample of 357 fb-1, accumulated at the Υ{hooked} (4 S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider. © 2008 Elsevier B.V.
Published: 2008

27. The role of muscarinic receptor subtypes in acetylcholine release from urinary bladder obtained from muscarinic receptor knockout mouse

Author: Yasu-Taka Azuma, Hidemitsu Nakajima, N. Yamashiro, T. Kawasaki, T. Takeuchi, and M. Matsui
Subjects: Atropine, Male, medicine.medical_specialty, Urinary Bladder, Muscarinic Antagonists, Tetrodotoxin, In Vitro Techniques, Biology, Choline O-Acetyltransferase, Mice, Adenosine Triphosphate, Internal medicine, Muscarinic acetylcholine receptor, medicine, Muscarinic acetylcholine receptor M4, Animals, RNA, Messenger, Anesthetics, Local, Receptor, Acetylcholine receptor, Mice, Knockout, Muscles, General Neuroscience, Dose-Response Relationship, Radiation, Muscarinic acetylcholine receptor M2, Muscarinic acetylcholine receptor M1, Receptors, Muscarinic, Acetylcholine, Electric Stimulation, Mice, Inbred C57BL, Endocrinology, Cholinergic, Female, Muscle Contraction, medicine.drug
Abstract: We investigated the subtype of prejunctional muscarinic receptors associated with inhibition of acetylcholine (ACh) released from the mouse bladder. We measured endogenous ACh release in the bladder obtained from the wild-type mice and muscarinic 1-5 (M1-M5) receptor knockout (KO) mice. Electrical field stimulation increased ACh release in all bladder preparations obtained from wild-type and M1-M5 receptor KO mice. The amount of ACh released from M1-M3 and M5 receptor KO mice was equal to that in the wild-type mice. In contrast, the amount of electrical field stimulation-induced ACh release in M4 receptor KO mice was significantly larger than that in the wild-type mice, but the extent of increase was small. Atropine increased electrical field stimulation-induced ACh release to levels found in wild-type mice in all M1-M5 receptor KO mice. In M2/M4 receptor double KO mice, the amount of electrical field stimulation-induced ACh release was equivalent to that in the M4 receptor KO mice. The cholinergic component of electrical field stimulation-induced contraction (in the presence of alpha,beta-methylene ATP) in the detrusor of M4 receptor KO mice was no different from that in the detrusor of wild-type mice. M4 receptor immunoreactivity was located between smooth muscle cells, colocalized with choline acetyltransferase immunoreactivity. These results indicate that the prejunctional inhibitory muscarinic receptors are of the M4 and non-M2 receptor subtypes. The nature of the non-M2 receptors remains unknown.
Published: 2008

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

Author: S. K. Kim, I. Bizjak, H. Miyake, F. Mandl, S. E. Lee, T. Gershon, S. L. Olsen, Z. P. Zhang, K. Hayasaka, O. Nitoh, K. Miyabayashi, J. Brodzicka, A. Chen, H. Hayashii, R. Chistov, T. Lesiak, R. Itoh, T. Matsumoto, C. C. Kuo, S. W. Lin, N. Gabyshev, H. Miyata, P. Krokovny, X. C. Tian, K. Abe, Y. Kozakai, A. Sokolov, Y. Yamashita, C. C. Wang, W. S. Hou, T. Sumiyoshi, A. Kuzmin, L. S. Peak, P. Pakhlov, H. Aihara, D. Liventsev, H. Stoeck, M. E. Sevior, A. Imoto, Y. Teramoto, H. Sahoo, Y. Iwasaki, S. Okuno, N. Soni, I. Tikhomirov, Y. Usov, K. Senyo, G. R. Moloney, A. Bay, T. Schietinger, A.J. Schwartz, J. Haba, J. B. Singh, B. G. Cheon, O. Schneider, Q. L. Xie, S. Hou, S. Stanič, Y. Miyazaki, H. Nakazawa, B. Golob, N. Satoyama, J. H. Kang, H. Ha, A. Ishikawa, K. Arinstein, D. Heffernan, M. Yamauchi, S. Villa, W. T. Chen, T. Hokuue, T. Mori, G. N. Taylor, Y. Chao, K. S. Park, S. Eidelman, M. Nakao, Y. Nagasaka, A. Poluektov, T. Tsukamoto, J. Dalseno, H. Ozaki, E. Barberio, T. Hara, K. Inami, Y. Watanabe, T. Kawasaki, H.K Park, A. Bozek, S. Nishida, K. Tamai, S. Fratina, N. Tamura, M. Hazumi, Z. Natkaniec, P. Križan, A. Go, V. Aulchenko, D. Anipko, K. Belous, A. Yamaguchi, Y. Onuki, S. Uno, Hiroyuki Kaji, M. Starič, T. Uglov, K. Ueno, Y. K. Choi, Y. Sakai, V. Zhulanov, M. Shapkin, R. Kulasiri, H. R. Khan, A. Zupanc, Y. J. Kim, U. Bitenc, L. E. Piilonen, P. Chang, I. Adachi, S. Ogawa, A. Bondar, Masayuki Tanaka, M. C. Chang, Y. Hoshi, A. Drutskoy, Y. J. Kwon, M. Iwasaki, B. D. Yabsley, Y. Choi, C. H. Wang, I. Bedny, S. Uehara, H. Kichimi, F. Takasaki, V. Zhilich, A. Vinokurova, M. Danilov, P. Urquijo, A. Somov, R. Seidl, T. Tsuboyama, D. Epifanov, M. Dash, R. Kumar, T. Iijima, A. M. Bakich, T. Ohshima, G. Varner, K. Ikado, H. Shibuya, B. Shwartz, Kazuhiko Hara, H. Kawai, Michael J. Lee, E. Won, R. Pestotnik, G. Pakhlova, and M. Bračko
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, KEKB, Electron–positron annihilation, Lepton number, Belle experiment, Lepton
Abstract: We report on a search for the lepton flavor violating τ−→μ−γ and τ−→e−γ decays based on 535 fb−1 of data accumulated at the Belle experiment. No signal is found and we set 90% confidence level upper limits on the branching ratios B(τ−→μ−γ)
Published: 2008

29. Measurement of masses of the Ξc(2645) and Ξc(2815) baryons and observation of Ξc(2980)→Ξc(2645)π

Author: T. Lesiak, I. Adachi, H. Aihara, K. Arinstein, A.M. Bakich, V. Balagura, E. Barberio, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bozek, M. Bračko, J. Brodzicka, T.E. Browder, Y. Chao, A. Chen, W.T. Chen, B.G. Cheon, R. Chistov, I.-S. Cho, S.-K. Choi, Y. Choi, J. Dalseno, M. Dash, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W.-S. Hou, H.J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N.J. Joshi, D.H. Kah, H. Kaji, J.H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H.J. Kim, S.K. Kim, Y.J. Kim, S. Korpar, P. Križan, P. Krokovny, C.C. Kuo, Y.-J. Kwon, S. Lange, J.S. Lee, M.J. Lee, S.E. Lee, J. Li, S.-W. Lin, C. Liu, D. Liventsev, F. Mandl, S. McOnie, T. Medvedeva, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G.R. Moloney, Y. Nagasaka, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, G. Pakhlova, H. Palka, C.W. Park, H.K. Park, L.S. Peak, R. Pestotnik, L.E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, K. Senyo, M.E. Sevior, M. Shapkin, H. Shibuya, J.-G. Shiu, B. Shwartz, A. Sokolov, S. Stanič, M. Starič, T. Sumiyoshi, F. Takasaki, M. Tanaka, G.N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K.E. Varvell, K. Vervink, C.C. Wang, C.H. Wang, M.-Z. Wang, P. Wang, X.L. Wang, Y. Watanabe, R. Wedd, E. Won, B.D. Yabsley, H. Yamamoto, Y. Yamashita, M. Yamauchi, Z.P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, and O. Zyukova
Subjects: Physics, Baryon, Nuclear and High Energy Physics, Particle physics, KEKB, 010308 nuclear & particles physics, 0103 physical sciences, Pi, 010306 general physics, 01 natural sciences
Abstract: We report a precise measurement of the masses of the $\Xi_c(2645)$ and $\Xi_c(2815)$ baryons using a data sample of 414 fb$^{-1}$ collected by the Belle collaboration at the KEKB $e^+ e^-$ collider. The states $\Xi_c(2645)^{0,+}$ are observed in the $\Xi_c^{+,0}\pi^{-,+}$ decay modes, while the $\Xi_c(2815)^{0,+}$ are reconstructed in the $\Xi_c(2645)^{+,0}\pi^{-,+}$ decay modes. The following mass splittings are determined: $m_{\Xi_c(2645)^+} - m_{\Xi_c(2645)^0} = (-0.1 \pm 0.3 ({\rm stat}) \pm 0.6 {(\rm syst})) {\rm MeV}/{\rm c}^2$ and $m_{\Xi_c(2815)^+} - m_{\Xi_c(2815)^0} = (-3.4 \pm 1.9 ({\rm stat}) \pm 0.9 {(\rm syst})) {\rm MeV}/{\rm c}^2$ with a much better precision than the current world averages. We also observe a new decay mode, $\Xi_c(2980)^{0,+} \to \Xi_c(2645)^{+,0}\pi^{-,+}$.
Published: 2008

30. Search for lepton-flavor-violating τ→ℓV0 decays at Belle

Author: T. Sumiyoshi, H. Ozaki, Y. Teramoto, H. Kaji, A. Bondar, P. Pakhlov, T. Iijima, Y. J. Kwon, T. E. Browder, S. Blyth, B. Shwartz, X. L. Wang, Y. Sakai, A. M. Bakich, Byung Gu Cheon, T. Ohshima, N. J. Joshi, O. Schneider, T. Aushev, S. McOnie, L. E. Piilonen, Y. Nishio, Antonio Limosani, G. R. Moloney, G. N. Taylor, V. Shebalin, G. Pakhlova, I. Bedny, P. Wang, F. Mandl, V. Zhilich, Z. P. Zhang, I. Tikhomirov, Kazuhiko Hara, Tariq Aziz, G. Varner, H. Miyata, O. Nitoh, V. Balagura, S. Nishida, H. Shibuya, H. Miyake, K. Hayasaka, U. Bitenc, D. Epifanov, E. Won, R. Mizuk, A. Zupanc, M. Starič, Y. Miyazaki, S. Eidelman, F. Takasaki, Y. Iwasaki, Motoki Iwasaki, Y. Yamashita, H. Kichimi, J. H. Kang, S. Okuno, K. Belous, Y. Choi, T. Kawasaki, D. H. Kah, I. S. Cho, J. B. Singh, A. Drutskoy, K. Inami, Y. Hoshi, S. Korpar, Naoya Katayama, Y. B. Hsiung, T. Uglov, S. Uno, J. G. Shiu, C. H. Wang, A. Poluektov, J. Dalseno, R. Itoh, H. Park, A. Sokolov, Y. Usov, M. Dash, Yasuyuki Horii, Hideyuki Kawai, D. Liventsev, S. Ogawa, T. Lesiak, Yutaka Watanabe, T. Mori, H. Aihara, J. Haba, V. Zhulanov, N. Gabyshev, R. Pestotnik, B. Golob, A. Kuzmin, Joowon Lee, A. Ishikawa, M. E. Sevior, A. Vinokurova, M. J. Lee, M. Shapkin, M. Nakao, M. Bračko, Y. Unno, I. Adachi, S. E. Lee, H. Hayashii, W. T. Chen, C. W. Park, H. Nakazawa, A. Chen, P. Križan, Y. Kuroki, M. Danilov, Rakesh Kumar, O. Zyukova, Y. Kozakai, K. Arinstein, W. S. Hou, E. L. Barberio, P. Krokovny, S. Uehara, Yang Liu, K. Senyo, H. Ha, K. Ueno, S. Stanič, V. Aulchenko, Y. J. Kim, S. Villa, M. Hazumi, E. Nakano, C. C. Kuo, A. Somov, and Masahiro Tanaka
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, 010308 nuclear & particles physics, Electron–positron annihilation, Electron, 01 natural sciences, Nuclear physics, KEKB, 0103 physical sciences, Vector meson, 010306 general physics, Flavor, Lepton
Abstract: We have searched for neutrinoless τ lepton decays into l and V0, where l stands for an electron or muon, and V0 for a vector meson (φ{symbol}, ω, K* 0, over(K, )* 0 or ρ0), using 543 fb-1 of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. No excess of signal events over the expected background has been observed, and we set upper limits on the branching fractions in the range (5.9 - 18) × 10-8 at the 90% confidence level. These upper limits are significantly more restrictive than our previous results for the lφ{symbol}, l K* 0, l over(K, )* 0 and l ρ0 modes. © 2008 Elsevier B.V.
Published: 2008

31. Measurement of the ratio B(D0→π+π−π0)/B(D0→K−π+π0) and the time-integrated CP asymmetry in D0→π+π−π0

Author: K. Arinstein, I. Adachi, H. Aihara, V. Aulchenko, T. Aushev, T. Aziz, S. Bahinipati, A.M. Bakich, V. Balagura, E. Barberio, A. Bay, I. Bedny, K. Belous, V. Bhardwaj, U. Bitenc, S. Blyth, A. Bondar, A. Bozek, M. Bračko, T.E. Browder, Y. Chao, A. Chen, W.T. Chen, B.G. Cheon, R. Chistov, I.-S. Cho, Y. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W.-S. Hou, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N.J. Joshi, D.H. Kah, H. Kaji, J.H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, S.K. Kim, Y.J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Križan, P. Krokovny, R. Kumar, C.C. Kuo, Y. Kuroki, A. Kuzmin, Y.-J. Kwon, J.S. Lange, J.S. Lee, M.J. Lee, S.E. Lee, T. Lesiak, A. Limosani, S.-W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G.R. Moloney, T. Mori, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C.W. Park, H. Park, K.S. Park, R. Pestotnik, L.E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, J. Schümann, C. Schwanda, A.J. Schwartz, K. Senyo, M.E. Sevior, M. Shapkin, V. Shebalin, H. Shibuya, J.-G. Shiu, B. Shwartz, J.B. Singh, A. Sokolov, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, S.Y. Suzuki, F. Takasaki, M. Tanaka, G.N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C.H. Wang, M.-Z. Wang, P. Wang, X.L. Wang, Y. Watanabe, E. Won, B.D. Yabsley, H. Yamamoto, Y. Yamashita, C.C. Zhang, Z.P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, and O. Zyukova
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Analytical chemistry, Value (computer science), Inverse, 01 natural sciences, law.invention, KEKB, law, 0103 physical sciences, Pi, 010306 general physics, Collider
Abstract: We report a high-statistics measurement of the relative branching fraction Br(D0 --> pi+pi-pi0)/Br(D0 --> K-pi+pi0). A 357 inverse fb data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider was used for the analysis. The relative branching fraction Br(D0 --> pi+pi-pi0)/Br(D0 --> K-pi+pi0) is determined with an accuracy comparable to the latest world average value.
Published: 2008

32. Study of the decay mechanism for B+→pp¯K+ and B+→pp¯π+

Author: S. Okuno, T. Iijima, L. E. Piilonen, T. Aushev, V. M. Aulchenko, G. Pakhlova, E. L. Barberio, M. Z. Wang, K. Kinoshita, Y. Teramoto, G. N. Taylor, S. Nishida, I. Tikhomirov, A. Chen, Samo Stanič, Y. Iwasaki, M. Shapkin, Robin Wedd, Y. J. Kim, H. Ozaki, Y. J. Kwon, M. Yamauchi, A. M. Bakich, T. Ohshima, E. Nakano, O. Schneider, H. J. Hyun, A. Kuzmin, C. C. Chiang, P. Chang, K. Senyo, M. Nakao, K. Ueno, Joowon Lee, Y. Unno, Andrey Sokolov, T. Kawasaki, V.N. Zhilich, C. C. Zhang, A. Yamaguchi, N. Gabyshev, H. Hayashii, S. W. Lin, R. Pestotnik, S. McOnie, T. E. Browder, S. Ogawa, H. Shibuya, H. Miyake, W. A. Mitaroff, J. H. Kang, A. Somov, R. Seidl, Y. Miyazaki, K. F. Chen, Young-Il Choi, D. Liventsev, K. Miyabayashi, S. Uehara, M. Danilov, C. C. Kuo, S. Uno, Y. Chao, I. S. Cho, G. S. Varner, T. Hokuue, S. Eidelman, P. Pakhlov, R. Mizuk, H. Ha, A. Ishikawa, A. Bay, N. Katayama, R. Itoh, S. E. Lee, S. Fratina, F. Takasaki, M. Starič, Rakesh Kumar, P. Wang, C. W. Park, P. Križan, K. Inami, H. Park, A. Bozek, F. Mandl, I. Adachi, Y. Sakai, Z. P. Zhang, C. H. Wang, U. Bitenc, Y. Yamashita, K. Tamai, S. Villa, K. Ikado, Masashi Hazumi, T. Matsumoto, T. Sumiyoshi, M. Bračko, Yu-xi Liu, H. Sahoo, M. E. Sevior, T. Uglov, Kevin Varvell, Osamu Tajima, A. Matyja, A. Zupanc, O. Nitoh, H. Aihara, Y. Choi, T. Hara, M. Tanaka, X. C. Tian, B. G. Cheon, J. Haba, A. Bondar, K. Belous, S. Korpar, D. Heffernan, E. Won, J. G. Shiu, Phillip Urquijo, M. Dash, B. Golob, S. Cole, H. Kichimi, T. Tsuboyama, T. Lesiak, K. Vervink, H. Kawai, Y. Watanabe, A. Vinokurova, Motoki Iwasaki, P. Krokovny, Yasushi Nagasaka, K. S. Park, Vladislav Balagura, S. L. Olsen, H. Miyata, Y. Hoshi, Tatiana Medvedeva, J. Schümann, K. Hayasaka, J. T. Wei, D. H. Kah, Y. B. Hsiung, J. B. Singh, A. Drutskoy, and C. C. Wang
Subjects: Physics, Nuclear and High Energy Physics, Near threshold, KEKB, Electron–positron annihilation, Analytical chemistry, Pi, High Energy Physics::Experiment, Atomic physics, Helicity
Abstract: We study the characteristics of the low mass p (p) over bar enhancements near threshold in the three-body decays B+ -> p (p) over barK(+) and B+ -> p (p) over bar pi(+). We observe that the proton polar angle distributions in the p (p) over bar helicity frame in the two decays have the opposite polarity, and measure the forward-backward asymmetries as a function of the p mass for the p (p) over barK(+) mode. We also search for the intermediate two-body decays, B+ -> (p) over bar Delta(++) and B+ -> p (Delta) over bar (0), and set upper limits on their branching fractions. These results are obtained from a 414 fb(-1) data sample that contains 449 x 10(6) B (B) over bar events collected near the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. (c) 2007 Elsevier B.V. All rights reserved.
Published: 2008

33. Co-expression of the toleragenic glycoprotein, CD200, with markers for cancer stem cells

Author: Elaine M. Hurt, William L. Farrar, Tashan Mistree, Brian T. Kawasaki, and Madhuri Kalathur
Subjects: Male, Innate immune system, Biophysics, Prostatic Neoplasms, Cell Biology, Tumor initiation, Biology, Stem cell marker, Biochemistry, Article, Neoplasm Proteins, Gene Expression Regulation, Neoplastic, Immune system, Antigen, Antigens, CD, Cancer stem cell, Cell Line, Tumor, Cancer cell, Immunology, Biomarkers, Tumor, Humans, Gene Silencing, Stem cell, Molecular Biology, Embryonic Stem Cells
Abstract: Tumor immunology fundamentals suggest immunological surveillance has the ability to recognize malignant cells and kill them before a tumor develops. However, cancer cells employ evasion mechanisms whereby the immune system may be actively suppressed or even tolerized to the tumor. Recently cancer stem cells were linked to tumor initiation and formation. However, no reports have addressed whether these cells participate in a tumor’s ability to evade immune surveillance. Recently the glycoprotein CD200, expressed within the innate immune system and other tissues and cells, was shown to be involved in tolerance. Here we describe CD200 co-expression with stem cell markers found on prostate, breast, brain, and colon cancers. This is the first report describing an immunomodulatory molecule on epithelial cancer stem cells. This important finding suggests a mechanism by which a tumor might evades immune system detection.
Published: 2007

34. Development of in-lab energy-filtered X-ray photoemission electron microscope using air-core-coil-type multipole Wien filter

Author: K. Tsukamoto, M. Kudo, N. Kawahara, Hironobu Niimi, M. Doi, Makoto Kato, Kiyotaka Asakura, T. Kawasaki, Wang-Jae Chun, Takeshi Miyamoto, and Shushi Suzuki
Subjects: Physics, Spectrum analyzer, Wien filter, Surfaces and Interfaces, Photoelectric effect, Condensed Matter Physics, Surfaces, Coatings and Films, law.invention, Photoemission electron microscopy, Filter (video), Electromagnetic coil, law, Materials Chemistry, Atomic physics, Electron microscope, Multipole expansion
Abstract: We have developed an in-lab energy-filtered X-ray photoemission electron microscopy (EXPEEM) combining a high-brilliance X-ray source and a new Wien filter-type energy analyzer, which can accept photoelectrons in a wide angle. To obtain high energy resolution, we enlarged the inner diameter of the filter and reduced aberrations of an analyzer using multipole electrodes and air-core coils. We obtained an energy-filtered image of photoelectrons.
Published: 2007

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

Author: W.T. Chen, K. Abe, I. Adachi, H. Aihara, D. Anipko, V. Aulchenko, A.M. Bakich, E. Barberio, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, T.E. Browder, M.-C. Chang, P. Chang, Y. Chao, A. Chen, B.G. Cheon, R. Chistov, Y. Choi, Y.K. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, A. Go, H. Ha, M. Hazumi, D. Heffernan, T. Higuchi, T. Hokuue, Y. Hoshi, W.-S. Hou, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, H. Kaji, J.H. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H.O. Kim, Y.J. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, R. Kumar, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, S.E. Lee, T. Lesiak, S.-W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, T. Medvedeva, H. Miyata, Y. Miyazaki, R. Mizuk, G.R. Moloney, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, S. Okuno, S.L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, C.W. Park, R. Pestotnik, L.E. Piilonen, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schümann, K. Senyo, M.E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, J.B. Singh, A. Sokolov, A. Somov, N. Soni, S. Stanič, M. Starič, H. Stoeck, S.Y. Suzuki, F. Takasaki, K. Tamai, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, I. Tikhomirov, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, S. Villa, C.C. Wang, C.H. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B.D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C.C. Zhang, Z.P. Zhang, V. Zhilich, and A. Zupanc
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Angular range, Range (particle radiation), Meson, law.invention, Nuclear physics, KEKB, law, Center of mass, Collider, Positron annihilation
Abstract: KS 0 KS 0 production in two-photon collisions has been studied using a 397.6 fb-1 data sample collected with the Belle detector at the KEKB e+ e- collider. For the first time the cross sections are measured in the two-photon center-of-mass energy range between 2.4 GeV and 4.0 GeV and angular range | cos θ* | < 0.6. Combining the results with measurements of γ γ → K+ K- from Belle, we observe that the cross section ratio σ (KS 0 KS 0) / σ (K+ K-) decreases from ∼0.13 to ∼0.01 with increasing energy. Signals for the χc 0 and χc 2 charmonium states are also observed. © 2007 Elsevier B.V. All rights reserved.
Published: 2007

36. Measurements of branching fractions and q2 distributions for B→πℓν and B→ρℓν decays with B→D(∗)ℓν decay tagging

Author: T. Hokuue, K. Abe, I. Adachi, H. Aihara, Y. Asano, T. Aushev, A.M. Bakich, V. Balagura, E. Barberio, M. Barbero, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, T.E. Browder, P. Chang, A. Chen, W.T. Chen, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, A. Gorišek, H. Ha, J. Haba, K. Hara, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, Y. Hoshi, S. Hou, W.-S. Hou, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kakuno, J.H. Kang, P. Kapusta, S.U. Kataoka, H. Kawai, T. Kawasaki, H.R. Khan, H.J. Kim, H.O. Kim, K. Kinoshita, Y. Kozakai, P. Križan, P. Krokovny, R. Kulasiri, R. Kumar, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, J. Lee, T. Lesiak, J. Li, A. Limosani, S.-W. Lin, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, D. Mohapatra, I. Nakamura, E. Nakano, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S.L. Olsen, Y. Onuki, P. Pakhlov, C.W. Park, H. Park, L.S. Peak, R. Pestotnik, L.E. Piilonen, Y. Sakai, N. Sato, N. Satoyama, K. Sayeed, T. Schietinger, O. Schneider, C. Schwanda, A.J. Schwartz, K. Senyo, M.E. Sevior, M. Shapkin, H. Shibuya, B. Shwartz, A. Somov, R. Stamen, S. Stanič, M. Starič, H. Stoeck, A. Sugiyama, S. Suzuki, S.Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, T. Tsukamoto, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K.E. Varvell, S. Villa, C.C. Wang, C.H. Wang, M.-Z. Wang, Y. Watanabe, E. Won, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, L.M. Zhang, Z.P. Zhang, and D. Zürcher
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, KEKB, Cabibbo–Kobayashi–Maskawa matrix, Electron–positron annihilation, Analytical chemistry, Form factor (quantum field theory), Resonance, B meson, Lattice QCD, Branching (polymer chemistry)
Abstract: We report measurements of the charmless semileptonic decays B0 → π- / ρ- l+ ν and B+ → π0 / ρ0 l+ ν, based on a sample of 2.75 × 108B over(B, ) events collected at the Υ{hooked} (4 S) resonance with the Belle detector at the KEKB e+ e- asymmetric collider. In this analysis, the accompanying B meson is reconstructed in the semileptonic mode B → D(*) l ν, enabling detection of the signal modes with high purity. We measure the branching fractions B (B0 → π- l+ ν) = (1.38 ± 0.19 ± 0.14 ± 0.03) × 10-4, B (B0 → ρ- l+ ν) = (2.17 ± 0.54 ± 0.31 ± 0.08) × 10-4, B (B+ → π0 l+ ν) = (0.77 ± 0.14 ± 0.08 ± 0.00) × 10-4 and B (B+ → ρ0 l+ ν) = (1.33 ± 0.23 ± 0.17 ± 0.05) × 10-4, where the errors are statistical, experimental systematic, and systematic due to form factor uncertainties, respectively. For each mode we also present the partial branching fractions in three q2 intervals: q2 < 8, 8 ≤ q2 < 16, and q2 ≥ 16 GeV2 / c2. From our partial branching fractions for B → π l ν and recent results for the form factor from unquenched Lattice QCD calculations, we obtain values of the CKM matrix element | Vu b |. © 2007 Elsevier B.V. All rights reserved.
Published: 2007

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

Author: Y. Miyazaki, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aziz, A.M. Bakich, E. Barberio, A. Bay, I. Bedny, K. Belous, U. Bitenc, I. Bizjak, A. Bondar, M. Bračko, T.E. Browder, A. Chen, W.T. Chen, B.G. Cheon, Y. Choi, Y.K. Choi, J. Dalseno, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, A. Go, A. Gorišek, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W.-S. Hou, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, H. Kaji, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, Y.J. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, R. Kumar, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, M.J. Lee, T. Lesiak, S.-W. Lin, F. Mandl, T. Matsumoto, H. Miyake, H. Miyata, T. Nagamine, Y. Nagasaka, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Park, L.S. Peak, R. Pestotnik, L.E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, N. Satoyama, T. Schietinger, O. Schneider, J. Schümann, C. Schwanda, A.J. Schwartz, K. Senyo, M.E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J.B. Singh, A. Somov, N. Soni, S. Stanič, M. Starič, H. Stoeck, T. Sumiyoshi, F. Takasaki, K. Tamai, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, I. Tikhomirov, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, S. Villa, A. Vinokurova, C.H. Wang, M. Watanabe, Y. Watanabe, E. Won, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Z.P. Zhang, V. Zhilich, V. Zhulanov, and A. Zupanc
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, KEKB, Pi, High Energy Physics::Experiment, Pseudoscalar meson, Lepton
Abstract: We have searched for lepton-flavor-violating $\tau$ decays with a pseudoscalar meson ($\eta$, $\eta'$ {and} $\pi^0$) using a data sample of 401 fb$^{-1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. No evidence for these decays is found and we set the following upper limits on the branching fractions: ${\cal{B}}(\tau^-\to e^-\eta) < 9.2\times 10^{-8}$, ${\cal{B}}(\tau^-\to \mu^-\eta) < 6.5\times 10^{-8}$, ${\cal{B}}(\tau^-\to e^-\eta') < 1.6\times 10^{-7}$, ${\cal{B}}(\tau^-\to \mu^-\eta') < 1.3\times 10^{-7}$, ${\cal{B}}(\tau^-\to e^-\pi^0) < 8.0\times 10^{-8}$ and ${\cal{B}}(\tau^-\to \mu^-\pi^0) < 1.2\times 10^{-7}$ at the 90% confidence level. These results improve our previously published upper limits by factors from 2.3 to 6.3.
Published: 2007

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

Author: Andrey Sokolov, Y. Iwasaki, G. Leder, P. Krokovny, Y. J. Kwon, Y. Onuki, N. Tamura, J. H. Kang, O. Schneider, A. Zupanc, K. Tamai, K. Sumisawa, H. Stoeck, M. H. Tanaka, O. Nitoh, C. H. Wang, R. Seidl, Samo Stanič, K. Ikado, M. E. Sevior, S. U. Kataoka, S. Nishida, N. Soni, W. T. Chen, E. L. Barberio, D. Anipko, P. Chang, Phillip Urquijo, Hiroaki Aihara, Y. Yamashita, I. Bedny, I. Nakamura, H. Sahoo, J. Dalseno, M. C. Chang, Q. L. Xie, T. Uglov, Yoji Hasegawa, Y. Choi, E. Nakano, M. Starič, Zhenyu Zhang, T. Nagamine, Rakesh Kumar, Y. Sakai, A. Drutskoy, T. Mori, H. Miyake, H. R. Khan, A. Somov, N. Satoyama, A.S. Kuzmin, U. Bitenc, M. J. Lee, P. Pakhlov, Y. Watanabe, S. Uno, C. Schwanda, M. Bračko, H. Kichimi, S. K. Kim, T. Iijima, H. Miyata, H. Nakazawa, G. Gokhroo, S. R. Hou, S. Fratina, H. J. Kim, Kazuo Abe, T. Tsuboyama, S. Cole, Y. Hoshi, T. Lesiak, S. Okuno, A. Yamaguchi, Gobinda Majumder, E. Won, T. J. Gershon, S. Noguchi, Jasvinder A. Singh, S. W. Lin, H. Park, A. Bozek, T. Tsukamoto, A. M. Bakich, S. Ogawa, M. Z. Wang, K. Kinoshita, T. Sumiyoshi, T. Matsumoto, Z. Natkaniec, T. Ohshima, H. Shibuya, M. Iwasaki, V.N. Zhilich, Y. Miyazaki, K. Hayasaka, Y. Teramoto, Bruce Yabsley, J. Schümann, B. Shwartz, S. Eidelman, N. Gabyshev, T. Hokuue, M. Yamauchi, G. N. Taylor, J. S. Lange, L. E. Piilonen, T. Schietinger, Young-Il Choi, G. Pakhlova, X. C. Tian, T. E. Browder, A. Go, D. Heffernan, S. Uehara, J. Haba, C. C. Kuo, W. S. Hou, H. Ha, N. Katayama, H. Kawai, R. Chistov, A. Bondar, K. Inami, K. Belous, S. Korpar, Byung Gu Cheon, R. Mizuk, M. Nakao, I. Adachi, S. McOnie, M. Dash, C. C. Wang, S. Villa, K. Senyo, T. Kawasaki, D. Liventsev, I. Bizjak, G. S. Varner, R. Itoh, S. Suzuki, A. Ishikawa, T. Nozaki, F. Takasaki, P. Križan, Antonio Limosani, I. Tikhomirov, A. Chen, M. Shapkin, Robin Wedd, Y. J. Kim, H. Ozaki, and R. Pestotnik
Subjects: Charmed baryons, Physics, Nuclear and High Energy Physics, Particle physics, Web of science, Electron–positron annihilation
Abstract: Reference EPFL-ARTICLE-154485doi:10.1016/j.physletb.2007.01.068View record in Web of Science Record created on 2010-11-05, modified on 2017-05-12
Published: 2007

39. Silicon vertex detector for the KEK Super B factory

Author: P. Križan, A. Kibayashi, Kevin Varvell, Y. Nakahama, K. Ueno, Y. Fujiyama, T. Ziegler, G. R. Moloney, Y. Watanabe, T. Arakawa, A. Chouvikov, M. H. Tanaka, L. S. Peak, Kenji Hayashi, H. Kakuno, Kai-Feng Chen, Markus Friedl, Y. Yamashita, Samo Korpar, T. Hirakawa, M. Rozanska, N. Tani, K. Sumisawa, Y. Chao, Nobuaki Sato, T. Takahashi, B. Harrop, Akito Kusaka, Masashi Hazumi, Hirokazu Ishino, Y. J. Kim, J. Dalseno, Osamu Tajima, H. Ozaki, W. Ostrowicz, A. M. Bakich, Z. Natkaniec, S. Chidzik, H. Steininger, M. Rosen, T. Kawasaki, Marco Barbero, T. Tsuboyama, N. Tamura, M. C. Chang, S. Fratina, T. Hara, M. Z. Wang, H. Kurashiro, Y. Ushiroda, Y. Asano, S. Ono, N. K. Joshi, S. Okuno, S. Kajiwara, G. N. Taylor, J. Haba, M. Watanabe, Hiroaki Aihara, D. Heffernan, K. Trabelsi, S. Koike, S. Schmid, H. Miyake, T. Higuchi, Daniel Robert Marlow, Samo Stanič, Christian Irmler, Y. Velikzhanin, K. Uchida, Hitoshi Yamamoto, Y. Choi, T. Kameshima, T. E. Browder, A. Das, K. Hara, G. S. Varner, Tsukasa Aso, J. Schümann, C. C. Wang, and M. Pernicka
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), High data rate, Instrumentation, Silicon vertex detector, B-factory
Abstract: In order to extend the physics reach of the present B factories, a letter of intent for a Super B factory, with a luminosity of 4×1035cm-2s-1, was submitted in 2004. The paper summarizes recent progress in the design and technological solutions for the silicon vertex detector to be operated at the expected high data rate and background condition of a Super B factory.
Published: 2007

40. Belle silicon vertex detector for the Super B Factory

Author: Osamu Tajima, S. Fratina, W. Ostrowicz, Y.S. Velikzhanin, T. Ziegler, N. Tamura, S. Chidzik, Hiroaki Aihara, Christian Irmler, M. Z. Wang, K. Ueno, Y. Fujiyama, A. Chouvikov, S. Kajiwara, Kazumasa Takahashi, G. N. Taylor, M. Rozanska, Akito Kusaka, Markus Friedl, G. R. Moloney, K. Trabelsi, T. Tsuboyama, Hirokazu Ishino, N. Tani, T. Hirakawa, L. S. Peak, Y. Onuki, H. Ozaki, K. Sumisawa, H. Kurashiro, J. Haba, H. Kakuno, Kai-Feng Chen, Y. Chao, B. Harrop, Kevin Varvell, Y. Nakahama, Y. Ushiroda, J. Dalseno, Y. Watanabe, Yongsun Kim, Samo Stanič, A. M. Bakich, Z. Natkaniec, H. Steininger, P. Križan, H. Matsumoto, Masashi Hazumi, S. Schmid, T. Kawasaki, Y. Choi, T. Arakawa, T. Hara, S. Ono, Marco Barbero, Y. Asano, S. Okuno, Kenji Hayashi, J. Schümann, Takuya Higuchi, M. H. Tanaka, M. Watanabe, D. Heffernan, Y. Yamashita, M. C. Chang, S. Koike, G. S. Varner, Nobuaki Sato, C. C. Wang, M. Pernicka, Tsukasa Aso, T. E. Browder, K. Hara, A. Kibayashi, T. Kameshima, H. Miyake, Samo Korpar, M. Rosen, Daniel Robert Marlow, K. Uchida, and Hitoshi Yamamoto
Subjects: Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, business.industry, Detector, Electrical engineering, Readout electronics, Dead time, Silicon vertex detector, Belle experiment, B-factory, Crosstalk, Upgrade, Physics::Accelerator Physics, High Energy Physics::Experiment, business, Instrumentation
Abstract: The silicon vertex detector (SVD2) of the Belle experiment at KEK (Tsukuba, Japan) is currently close to its limits in terms of the occupancy of the innermost layer and the readout dead time. In order to cope with further increase in luminosity, different levels of upgrades are proposed: small improvements are possible in the short term by tuning the current system at the cost of signal-to-noise and crosstalk. In 2007, the two inner layers of the SVD2 will be replaced by similar detectors with faster readout electronics (SVD2.5) and in the long term, a major upgrade of the full silicon vertex detector (SVD3) is envisaged for the KEK Super B Factory. These upgrade scenarios will be discussed in detail from the hardware point of view along with the options under study.
Published: 2006

41. Belle SVD2 vertex detector

Author: H. Aihara, Y. Asano, T. Aso, A. Bakich, M. Barbero, T. Browder, M.C. Chang, Y. Chao, K.F. Chen, S. Chidzik, A. Chouvikov, J. Dalseno, R. Dowd, R. Fernholz, S. Fratina, M. Friedl, H. Fujii, Y. Fujiyama, J. Haba, K. Hara, T. Hara, B. Harrop, T. Haruyama, K. Hayashi, M. Hazumi, D. Heffernan, T. Higuchi, A. Igarashi, Y. Igarashi, H. Ikeda, H. Ishino, S. Iwaida, T. Kameshima, P. Kapusta, K. Kasami, T. Kawasaki, A. Kibayashi, S. Koike, S. Korpar, P. Križan, H. Kurashiro, A. Kusaka, T. Lesiak, D. Marlow, H. Matsumoto, Y. Mikami, H. Miyake, G.R. Moloney, Z. Natkaniec, S. Nozaki, R. Ohkubo, S. Okuno, S. Ono, Y. Onuki, W. Ostrowicz, H. Ozaki, L. Peak, M. Pernicka, M. Rosen, M. Rozanska, N. Sato, S. Schmid, J. Schümann, T. Shibata, R. Stamen, S. Stanič, H. Steininger, K. Sumisawa, J. Suzuki, H. Tajima, O. Tajima, K. Takahashi, F. Takasaki, N. Tamura, M. Tanaka, G.N. Taylor, K. Trabelsi, T. Tsuboyama, K. Uchida, K. Ueno, Y. Ushiroda, S. Vahsen, G. Varner, K. Varvell, Y.S. Velikzhanin, C.C. Wang, M.Z. Wang, M. Watanabe, Y. Watanabe, H. Yamamoto, Y. Yamashita, M. Yamauchi, R. Yang, Y. Yasu, T. Ziegler, and D. Žontar
Subjects: Vertex (graph theory), Physics, Nuclear and High Energy Physics, Particle physics, Belle experiment, Silicon vertex detector, law.invention, Nuclear physics, KEKB, Radiation tolerance, law, Physics::Accelerator Physics, High Energy Physics::Experiment, Vertex detector, Polar coordinate system, Collider, Instrumentation
Abstract: A new silicon vertex detector for the Belle experiment has been in operation at the high-luminosity asymmetric energy electron–positron collider KEKB since October 2003. It provides a larger polar angle acceptance, a better vertex resolution and a higher radiation tolerance than the previous one. The obtained performances indicate that the SVD2 works reliably, in very good agreement with expectations.
Published: 2006

42. Search for neutrinoless decays τ→ℓhh and τ→ℓV0

Author: Y. Yusa, K. Abe, I. Adachi, H. Aihara, Y. Asano, V. Aulchenko, A. Bay, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, T.E. Browder, A. Chen, B.G. Cheon, R. Chistov, Y. Choi, Y.K. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, A. Gorišek, H.C. Ha, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W.-S. Hou, T. Iijima, K. Ikado, K. Inami, R. Itoh, M. Iwasaki, Y. Iwasaki, J.H. Kang, H. Kawai, T. Kawasaki, H.R. Khan, H. Kichimi, S.K. Kim, S. Korpar, P. Križan, R. Kulasiri, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, T. Lesiak, S.-W. Lin, D. Liventsev, G. Majumder, T. Matsumoto, W. Mitaroff, Y. Miyazaki, R. Mizuk, T. Nagamine, E. Nakano, Z. Natkaniec, S. Nishida, S. Ogawa, T. Ohshima, T. Okabe, S.L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, H. Palka, R. Pestotnik, L.E. Piilonen, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, C. Schwanda, R. Seidl, K. Senyo, M. Shapkin, H. Shibuya, B. Shwartz, A. Sokolov, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, K. Sumisawa, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, T. Tsukamoto, S. Uehara, S. Uno, Y. Usov, G. Varner, S. Villa, E. Won, B.D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, and Z.P. Zhang
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, KEKB, Muon, Meson, Electron–positron annihilation, Hadron, Electron, Neutral vector, Lepton
Abstract: We have searched for neutrinoless τ lepton decays into lhh or l V0, where l stands for an electron or muon, h for a charged light hadron, π or K, and V0 for a neutral vector meson, ρ0, K* (892)0 and φ{symbol}, using a 158 fb-1 data sample collected with the Belle detector at the KEKB e+ e- collider. Since the number of events observed are consistent with the expected background, we set upper limits on the branching fractions in the range of (1.6 - 8.0) × 10-7 for various decay modes at the 90% confidence level. © 2006 Elsevier B.V. All rights reserved.
Published: 2006

43. Vertex detector for super Belle experiment

Author: M. Pernicka, Hirokazu Ishino, Masashi Hazumi, T. Tsuboyama, G. S. Varner, J. Haba, M. Friedl, D. Heffernan, M. Barbero, T. Kameshima, K. Trabelsi, T. Kawasaki, S. Ono, M. Watanabe, and Osamu Tajima
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Physics::Instrumentation and Detectors, Detector, Belle experiment, law.invention, B-factory, Nuclear physics, Upgrade, KEKB, law, Physics::Accelerator Physics, High Energy Physics::Experiment, B meson, Collider, Instrumentation
Abstract: Using a high resolution silicon vertex detector and a large number of B meson decays, the Belle experiment has succeeded in measuring time-dependent CP asymmetry with high precision. To continue the search for physics beyond the standard model, an upgrade of the KEKB collider to a luminosity of 10 35 – 36 cm - 2 s - 1 is proposed. Such a luminosity upgrade will also require an upgraded (“Super”) Belle experiment. Discussions have started on the conceptual design for the silicon vertexing upgrade of this detector. Since the momenta of particles is not high in B factory operating at the ϒ ( 4 S ) resonance, it is important to avoid high occupancy while keeping the material budget low. A fast data acquisition system and radiation hardness are also required. In this report, the conceptual design of a vertex detector for the Super Belle experiment is shown. The status of R&D topics is also reported.
Published: 2006

44. Status of the Belle silicon vertex detector

Author: Z. Natkaniec, H. Aihara, Y. Asano, T. Aso, A. Bakich, T. Browder, M.C. Chang, Y. Chao, K.F. Chen, S. Chidzik, A. Chouvikov, J. Dalseno, R. Dowd, R. Fernholz, S. Fratina, M. Friedl, H. Fujii, Y. Fujiyama, J. Haba, K. Hara, T. Hara, B. Harrop, T. Haruyama, K. Hayashi, M. Hazumi, D. Heffernan, T. Higuchi, A. Igarashi, Y. Igarashi, H. Ikeda, H. Ishino, S. Iwaida, T. Kameshima, P. Kapusta, K. Kasami, T. Kawasaki, A. Kibayashi, S. Koike, S. Korpar, P. Križan, H. Kurashiro, A. Kusaka, T. Lesiak, D. Marlow, H. Matsumoto, Y. Mikami, H. Miyake, G.R. Moloney, S. Nozaki, R. Ohkubo, S. Okuno, S. Ono, Y. Onuki, W. Ostrowicz, H. Ozaki, L. Peak, M. Pernicka, M. Rosen, M. Rozanska, N. Sato, S. Schmid, J. Schümann, T. Shibata, R. Stamen, S. Stanič, H. Steininger, K. Sumisawa, J. Suzuki, H. Tajima, O. Tajima, K. Takahashi, F. Takasaki, N. Tamura, M. Tanaka, G.N. Taylor, K. Trabelsi, W. Trischuk, T. Tsuboyama, K. Uchida, K. Ueno, Y. Ushiroda, S. Vahsen, G. Varner, K. Varvell, Y.S. Velikzhanin, C.C. Wang, M.Z. Wang, M. Watanabe, Y. Watanabe, H. Yamamoto, Y. Yamashita, M. Yamauchi, R. Yang, Y. Yasu, T. Ziegler, and D. Žontar
Subjects: Physics, Nuclear and High Energy Physics, Vertex (computer graphics), Physics::Instrumentation and Detectors, business.industry, Detector, Dead time, Silicon vertex detector, law.invention, KEKB, Optics, law, High Energy Physics::Experiment, Collider, business, Instrumentation, Radiation hardening, Energy (signal processing)
Abstract: The old silicon vertex detector (SVD1) of the Belle detector, operating at the high-luminosity asymmetric energy e+e− collider KEKB, was replaced by an upgraded version (SVD2) in 2003. The new detector has modified geometry and redesigned readout electronics, providing a larger polar angle acceptance, better vertex resolution, improved radiation hardness and reduced dead time. The operation of the detector started successfully in October 2003. The basic concepts of the SVD2 design as well as its performance after 10 months of data taking are described in this paper.
Published: 2006

45. Hydrogen retention in carbon–tungsten co-deposition layer formed by hydrogen RF plasma

Author: Kazunari Katayama, H. Nagase, Y. Manabe, T. Kawasaki, Toshiharu Takeishi, and Masabumi Nishikawa
Subjects: Hydrogen, Inorganic chemistry, Metals and Alloys, chemistry.chemical_element, Surfaces and Interfaces, Sputter deposition, Tungsten, equipment and supplies, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry, Sputtering, Materials Chemistry, Inductively coupled plasma, Layer (electronics), Deposition (chemistry), Carbon
Abstract: Carbon–tungsten co-deposition layers (C–W layers) were formed by sputtering method using hydrogen or deuterium RF plasma. The deposition rate of the C–W layer by deuterium plasma was faster than that by hydrogen plasma, where the increase of deposition rate of tungsten was larger than that of carbon. This indicates that the isotope effect on sputtering–depositing process for tungsten is larger than that for carbon. The release curve of hydrogen from the C–W layer showed two peaks at 400 °C and 700 °C. Comparing the hydrogen release from the carbon deposition layer and the tungsten deposition layer, it is considered that the increase of the release rate at 400 °C is affected by tungsten and that at 700 °C is affected by carbon. The obtained hydrogen retention in the C–W layers which have over 60 at.% of carbon was in the range between 0.45 and 0.16 as H / (C + W).
Published: 2006

46. Measurement of branching fractions for B→χc1(2)K(K∗) at Belle

Author: N. Soni, K. Abe, I. Adachi, H. Aihara, K. Arinstein, Y. Asano, V. Aulchenko, T. Aushev, A.M. Bakich, E. Barberio, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, M. Bračko, T.E. Browder, P. Chang, Y. Chao, A. Chen, K.-F. Chen, B.G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, A. Chuvikov, J. Dalseno, M. Danilov, M. Dash, L.Y. Dong, S. Eidelman, Y. Enari, D. Epifanov, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, A. Go, G. Gokhroo, B. Golob, A. Gorišek, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W.-S. Hou, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, J.H. Kang, J.S. Kang, P. Kapusta, N. Katayama, T. Kawasaki, H.R. Khan, H. Kichimi, H.J. Kim, S.M. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, T. Lesiak, S.-W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, Y. Mikami, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, T. Nagamine, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S.L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, C.W. Park, R. Pestotnik, M. Peters, L.E. Piilonen, A. Poluektov, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, M.E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J.B. Singh, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, S.Y. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, S. Uno, P. Urquijo, G. Varner, S. Villa, C.C. Wang, C.H. Wang, Y. Watanabe, E. Won, Q.L. Xie, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, Y. Yuan, C.C. Zhang, L.M. Zhang, Z.P. Zhang, and V. Zhilich
Subjects: Physics, Nuclear and High Energy Physics, KEKB, law, Analytical chemistry, Collider, Branching (polymer chemistry), Helicity, law.invention
Abstract: We have measured the branching fractions for the exclusive decay modes B→χc1(2)K(K∗)B→χc1(2)K(K∗) using a 140 fb−1140 fb−1 data sample collected by the Belle detector at the KEKB asymmetric-energy e+e−e+e− collider. The measured branching fractions for B+→χc1K+B+→χc1K+, B0→χc1K0B0→χc1K0, B0→χc1K∗0B0→χc1K∗0 and B+→χc1K∗+B+→χc1K∗+ decay modes are (4.5±0.2±0.5)×10−4(4.5±0.2±0.5)×10−4, (3.5±0.3±0.5)×10−4(3.5±0.3±0.5)×10−4, (3.1±0.3±0.7)×10−4(3.1±0.3±0.7)×10−4 and (4.1±0.6±0.9)×10−4(4.1±0.6±0.9)×10−4, respectively, where the first error is statistical and the second error is systematic. We do not observe statistically significant signals for the B→χc2K(K∗)B→χc2K(K∗) decay modes and set upper limits at the 90% confidence level. We also study the helicity distribution for B→χc1K∗B→χc1K∗ decay mode and show that the longitudinal polarization component is dominant.
Published: 2006

47. Search for the Θ(1540)+ pentaquark using kaon secondary interactions at Belle

Author: R. Mizuk, M. Danilov, K. Abe, I. Adachi, H. Aihara, Y. Asano, T. Aushev, S. Bahinipati, A.M. Bakich, V. Balagura, S. Banerjee, E. Barberio, M. Barbero, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T.E. Browder, P. Chang, Y. Chao, A. Chen, K.-F. Chen, W.T. Chen, B.G. Cheon, R. Chistov, S.-K. Choi, Y. Choi, A. Chuvikov, J. Dalseno, M. Dash, L.Y. Dong, A. Drutskoy, S. Eidelman, Y. Enari, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, A. Gorišek, J. Haba, T. Hara, N.C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, T. Hokuue, Y. Hoshi, S. Hou, W.-S. Hou, T. Iijima, K. Ikado, A. Imoto, A. Ishikawa, R. Itoh, Y. Iwasaki, J.H. Kang, J.S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H.R. Khan, H. Kichimi, H.J. Kim, J.H. Kim, S.K. Kim, S.M. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, J.S. Lange, S.E. Lee, T. Lesiak, J. Li, S.-W. Lin, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, Y. Mikami, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, G.R. Moloney, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S.L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C.W. Park, N. Parslow, L.S. Peak, R. Pestotnik, L.E. Piilonen, Y. Sakai, N. Sato, N. Satoyama, K. Sayeed, T. Schietinger, O. Schneider, A.J. Schwartz, M.E. Sevior, H. Shibuya, V. Sidorov, J.B. Singh, A. Somov, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, G. Varner, K.E. Varvell, S. Villa, C.C. Wang, C.H. Wang, M.-Z. Wang, Y. Watanabe, E. Won, Q.L. Xie, B.D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, S.L. Zang, J. Zhang, L.M. Zhang, Z.P. Zhang, V. Zhilich, and D. Zürcher
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, KEKB, law, Hyperon, Collider, Resonance (particle physics), Pentaquark, law.invention, Charge exchange
Abstract: Using kaon secondary interactions in the material of the Belle detector, we search for both inclusive and exclusive production of the Θ(1540) +. We set an upper limit of 2.5% at the 90% C.L. on the ratio of the Θ(1540)+ to Λ(1520) inclusive production cross sections. We also search for the Θ(1540)+ as an intermediate resonance in the charge exchange reaction K+n→pKS 0. We set an upper limit of ΓΘ+
Published: 2006

48. Japanese polar patrol balloon experiments from 2002 to 2004

Author: Michihiko Toriumi, Yoshitaka Saito, Y. Tomida, Takamasa Yamagami, M. Fujii, Yukihiko Matsuzaka, Natsuo Sato, H. Murakami, Shigeo Ohta, Naoki Izutsu, Hisao Yamagishi, Y. Katayose, Yusuke Ebihara, Akira Kadokura, Katsuaki Kasahara, M. Ejiri, Michiyoshi Namiki, T. Kawasaki, S. Uchiyama, Issei Iijima, and Y. Konno
Subjects: Atmospheric Science, COSMIC cancer database, Meteorology, Iridium satellite constellation, Housekeeping (computing), Launched, Aerospace Engineering, Astronomy and Astrophysics, Balloon, Communication device, Atmosphere, Geophysics, Space and Planetary Science, General Earth and Planetary Sciences, Environmental science, Polar
Abstract: Polar patrol balloon experiments were carried out at Syowa Station in Antarctica from 2002 to 2004. Two balloons were launched for the purpose of observing phenomena in the polar atmosphere and one was done for the observation of high energy cosmic electrons. We developed a new housekeeping system including communication device using the Iridium satellite network, an auto-level controller driven by a new program for keeping the flight altitude, and a power management system for solar cells combined with secondary batteries. Two balloons for studying phenomena in the Antarctic atmosphere launched on January 13, 2003 made flights for 18 days and 25 days, respectively. All the housekeeping system worked well during the flights as we expected. Based on these experiments, we adjusted parameters for the altitude control system and the power management system. We launched a balloon for the cosmic electron observation on January 4, 2004. It flew 13 days around the Antarctica with the perfect operation of the onboard housekeeping system. We hope that fruitful scientific results will be obtained from these long-duration flights.
Published: 2006

49. Development of a 2.8 μm film for scientific balloons

Author: Michihiko Toriumi, Michiyoshi Namiki, T. Nakada, Yukihiko Matsuzaka, K. Ichimura, Issei Iijima, Tadashi Kobayashi, Yoshitaka Saito, Kiyoho Matsushima, T. Kawasaki, T. Yamagami, and Naoki Izutsu
Subjects: Atmospheric Science, Materials science, business.product_category, business.industry, Aerospace Engineering, Astronomy and Astrophysics, Balloon, Geophysics, Altitude, Optics, Space and Planetary Science, General Earth and Planetary Sciences, Die (manufacturing), business
Abstract: Development of a balloon to fly at higher altitudes is one of the most attractive challenges in scientific balloon technologies. After reaching the highest record setting balloon altitude of 53.0 km using the 3.4 μm film in 2002, we tried to make a thinner balloon film. In 2003, we developed a forming die and an air-ring and succeeded in forming a film with a thickness of 3.0 μm and a width of 220 cm. Using this film, we manufactured a balloon with a volume of 5000 m3 and succeeded in flying the balloon up to an altitude of 46.0 km. We then searched for a good combination of resins to make a thinner and wider film and obtained films with widths of 280 cm, and a thickness of 3.0 μm at first, and then 2.8 μm. In 2004, we performed balloon experiments making a 30,000 m3 balloon with the 3.0 μm film and a 5000 m3 balloon with the 2.8 μm film. Both balloons were well manufactured and reached the highest altitudes of 50.7 and 42.6 km, respectively.
Published: 2006

50. Search for lepton and baryon number violating τ− decays into Λ¯π− and Λπ−

Author: Y. Miyazaki, K. Abe, I. Adachi, H. Aihara, K. Arinstein, Y. Asano, V. Aulchenko, T. Aushev, S. Bahinipati, A.M. Bakich, V. Balagura, E. Barberio, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T.E. Browder, P. Chang, Y. Chao, A. Chen, K.-F. Chen, W.T. Chen, B.G. Cheon, R. Chistov, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, L.Y. Dong, A. Drutskoy, S. Eidelman, Y. Enari, D. Epifanov, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, A. Go, G. Gokhroo, B. Golob, A. Gorišek, H.C. Ha, K. Hayasaka, H. Hayashii, M. Hazumi, T. Hokuue, Y. Hoshi, S. Hou, W.-S. Hou, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, Y. Iwasaki, J.H. Kang, J.S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H.R. Khan, H. Kichimi, H.J. Kim, J.H. Kim, S.K. Kim, S.M. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, C.C. Kuo, A. Kuzmin, Y.-J. Kwon, G. Leder, S.E. Lee, T. Lesiak, S.-W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, Y. Mikami, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, G.R. Moloney, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S.L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C.W. Park, N. Parslow, R. Pestotnik, L.E. Piilonen, A. Poluektov, N. Root, M. Rozanska, Y. Sakai, N. Sato, N. Satoyama, K. Sayeed, T. Schietinger, O. Schneider, M.E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, A. Somov, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, S.Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, G.N. Taylor, Y. Teramoto, X.C. Tian, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, S. Uno, P. Urquijo, G. Varner, S. Villa, C.C. Wang, C.H. Wang, Y. Watanabe, E. Won, Q.L. Xie, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, J. Zhang, L.M. Zhang, Z.P. Zhang, V. Zhilich, and D. Zürcher
Subjects: Physics, Baryon, Nuclear physics, Nuclear and High Energy Physics, Particle physics, KEKB, Electron–positron annihilation, Baryon number, Lepton
Abstract: We have searched for τ lepton decays, τ-→Λπ- and τ-→Λπ-, that simultaneously violate the conservation of the lepton (L) and baryon (B) number using a data sample of 154 fb-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. No evidence for a signal was found in either of the decay modes and we set the following upper limits for the branching fractions: B(τ-→Λπ-)
Published: 2006

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