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51. Evidence of Inhomogeneous Superconductivity in FeTe$_{1-x}$Se$_x$ Thin Film Using Scotch-Tape Method

Author

Okazaki, H., Watanabe, T., Yamaguchi, T., Kawasaki, Y., Deguchi, K., Demura, S., Ozaki, T., Denholme, S. J., Mizuguchi, Y., Takeya, H., and Takano, Y.

Subjects
Condensed Matter - Superconductivity
Abstract

We have fabricated thin films of FeTe$_{1-x}$Se$_x$ using a scotch-tape method. The superconductivities of the thin films are different from each other although these films were fabricated from the same bulk sample. The result clearly presents the inhomogeneous superconductivity in FeTe$_{1-x}$Se$_x$. The difference comes from inhomogeneity due to the excess Fe concentration. The resistivity of a thin film with low excess Fe shows good superconductivity with the sharp superconducting-transition width and more isotropic superconductivity., Comment: 11 pages, 3 figures

Published
2012
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52. Clarification as to why alcoholic beverages have the ability to induce superconductivity in Fe_{1+d}Te_{1-x}S_x

Author

Deguchi, K., Sato, D., Sugimoto, M., Hara, H., Kawasaki, Y., Demura, S., Watanabe, T., Denholme, S. J., Okazaki, H., Ozaki, T., Yamaguchi, T., Takeya, H., Soga, T., Tomita, M., and Takano, Y.

Subjects
Condensed Matter - Superconductivity
Abstract

To elucidate the mechanism as to why alcoholic beverages can induce superconductivity in Fe_{1+d}Te_{1-x}S_x samples, we performed component analysis and found that weak acid such as organic acid has the ability to induce superconductivity. Inductively-coupled plasma spectroscopy was performed on weak acid solutions post annealing. We found that the mechanism of inducement of superconductivity in Fe_{1+d}Te_{1-x}S_x is the deintercalation of excess Fe from the interlayer sites., Comment: 9 pages, 5 figures

Published
2012
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53. First Muon-Neutrino Disappearance Study with an Off-Axis Beam

Author

T2K Collaboration, Abe, K., Abgrall, N., Ajima, Y., Aihara, H., Albert, J. B., Andreopoulos, C., Andrieu, B., Anerella, M. D., Aoki, S., Araoka, O., Argyriades, J., Ariga, A., Ariga, T., Assylbekov, S., Autiero, D., Badertscher, A., Barbi, M., Barker, G. J., Barr, G., Bass, M., Batkiewicz, M., Bay, F., Bentham, S., Berardi, V., Berger, B. E., Bertram, I., Besnier, M., Beucher, J., Beznosko, D., Bhadra, S., Blaszczyk, F. d. M., Blocki, J., Blondel, A., Bojechko, C., Bouchez, J., Boyd, S. B., Bravar, A., Bronner, C., Brook-Roberge, D. G., Buchanan, N., Budd, H., Calland, R., Calvet, D., Rodriguez, J. Caravaca, Cartwright, S. L., Carver, A., Castillo, R., Catanesi, M. G., Cazes, A., Cervera, A., Chavez, C., Choi, S., Christodoulou, G., Coleman, J., Collazuol, G., Coleman, W., Connolly, K., Curioni, A., Dabrowska, A., Danko, I., Das, R., Davies, G. S., Davis, S., Day, M., De Rosa, G., de André, J. P. A. M., de Perio, P., Dealtry, T., Delbart, A., Densham, C., Di Lodovico, F., Di Luise, S., Tran, P. Dinh, Dobson, J., Dore, U., Drapier, O., Duboyski, T., Dufour, F., Dumarchez, J., Dytman, S., Dziewiecki, M., Dziomba, M., Emery, S., Ereditato, A., Escallier, J. E., Escudero, L., Esposito, L. S., Fechner, M., Ferrero, A., Finch, A. J., Frank, E., Fujii, Y., Fukuda, Y., Galymov, V., Ganetis, G. L., Gannaway, F. C., Gaudin, A., Gendotti, A., George, M. A., Giffin, S., Giganti, C., Gilje, K., Ghosh, A. K., Golan, T., Goldhaber, M., Gomez-Cadenas, J. J., Gomi, S., Gonin, M., Grant, N., Grant, A., Gumplinger, P., Guzowski, P., Hadley, D. R., Haesler, A., Haigh, M. D., Hamano, K., Hansen, C., Hansen, D., Hara, T., Harrison, P. F., Hartfiel, B., Hartz, M., Haruyama, T., Hasegawa, T., Hastings, N. C., Hatzikoutelis, A., Hayashi, K., Hayato, Y., Hearty, C., Helmer, R. L., Henderson, R., Higashi, N., Hignight, J., Hillairet, A., Hiraki, T., Hirose, E., Holeczek, J., Horikawa, S., Huang, K., Hyndman, A., Ichikawa, A. K., Ieki, K., Ieva, M., Iida, M., Ikeda, M., Ilic, J., Imber, J., Ishida, T., Ishihara, C., Ishii, T., Ives, S. J., Iwasaki, M., Iyogi, K., Izmaylov, A., Jamieson, B., Johnson, R. A., Joo, K. K., Jover-Manas, G. V., Jung, C. K., Kaji, H., Kajita, T., Kakuno, H., Kameda, J., Kaneyuki, K., Karlen, D., Kasami, K., Kato, I., Kawamuko, H., Kearns, E., Khabibullin, M., Khanam, F., Khotjantsev, A., Kielczewska, D., Kikawa, T., Kim, J., Kim, J. Y., Kim, S. B., Kimura, N., Kirby, B., Kisiel, J., Kitching, P., Kobayashi, T., Kogan, G., Koike, S., Konaka, A., Kormos, L. L., Korzenev, A., Koseki, K., Koshio, Y., Kouzuma, Y., Kowalik, K., Kravtsov, V., Kreslo, I., Kropp, W., Kubo, H., Kubota, J., Kudenko, Y., Kulkarni, N., Kurimoto, Y., Kurjata, R., Kutter, T., Lagoda, J., Laihem, K., Laing, A., Laveder, M., Lawe, M., Lee, K. P., Le, P. T., Levy, J. M., Licciardi, C., Lim, I. T., Lindner, T., Lister, C., Litchfield, R. P., Litos, M., Longhin, A., Lopez, G. D., Loverre, P. F., Ludovici, L., Lux, T., Macaire, M., Magaletti, L., Mahn, K., Makida, Y., Malek, M., Manly, S., Marchionni, A., Marino, A. D., Marone, A. J., Marteau, J., Martin, J. F., Maruyama, T., Maryon, T., Marzec, J., Masliah, P., Mathie, E. L., Matsumura, C., Matsuoka, K., Matveev, V., Mavrokoridis, K., Mazzucato, E., McCauley, N., McFarland, K. S., McGrew, C., McLachlan, T., Messina, M., Metcalf, W., Metelko, C., Mezzetto, M., Mijakowski, P., Miller, C. A., Minamino, A., Mineev, O., Mine, S., Missert, A. D., Mituka, G., Miura, M., Mizouchi, K., Monfregola, L., Moreau, F., Morgan, B., Moriyama, S., Muir, A., Murakami, A., Muratore, J. F., Murdoch, M., Murphy, S., Myslik, J., Nagai, N., Nakadaira, T., Nakahata, M., Nakai, T., Nakajima, K., Nakamoto, T., Nakamura, K., Nakayama, S., Nakaya, T., Nakayoshi, K., Naples, D., Navin, M. L., Nicholls, T. C., Nielsen, B., Nielsen, C., Nishikawa, K., Nishino, H., Nitta, K., Nobuhara, T., Nowak, J. A., Obayashi, Y., Ogitsu, T., Ohhata, H., Okamura, T., Okumura, K., Okusawa, T., Oser, S. M., Otani, M., Owen, R. A., Oyama, Y., Ozaki, T., Pac, M. Y., Palladino, V., Paolone, V., Paul, P., Payne, D., Pearce, G. F., Perkin, J. D., Pettinacci, V., Pierre, F., Poplawska, E., Popov, B., Posiadala, M., Poutissou, J. -M., Poutissou, R., Przewlocki, P., Qian, W., Raaf, J. L., Radicioni, E., Ratoff, P. N., Raufer, T. M., Ravonel, M., Raymond, M., Retiere, F., Robert, A., Rodrigues, P. A., Rondio, E., Roney, J. M., Rossi, B., Roth, S., Rubbia, A., Ruterbories, D., Sabouri, S., Sacco, R., Sakashita, K., Sánchez, F., Sarrat, A., Sasaki, K., Scholberg, K., Schwehr, J., Scott, M., Scully, D. I., Seiya, Y., Sekiguchi, T., Sekiya, H., Shibata, M., Shimizu, Y., Shiozawa, M., Short, S., Sinclair, P. D., Siyad, M., Smith, B. M., Smith, R. J., Smy, M., Sobczyk, J. T., Sobel, H., Sorel, M., Stahl, A., Stamoulis, P., Steinmann, J., Still, B., Stone, J., Stodulski, M., Strabel, C., Sulej, R., Suzuki, A., Suzuki, K., Suzuki, S., Suzuki, S. Y., Suzuki, Y., Swierblewski, J., Szeglowski, T., Szeptycka, M., Tacik, R., Tada, M., Taguchi, M., Takahashi, S., Takeda, A., Takenaga, Y., Takeuchi, Y., Tanaka, K., Tanaka, H. A., Tanaka, M., Tanaka, M. M., Tanimoto, N., Tashiro, K., Taylor, I., Terashima, A., Terhorst, D., Terri, R., Thompson, L. F., Thorley, A., Toki, W., Tobayama, S., Tomaru, T., Totsuka, Y., Touramanis, C., Tsukamoto, T., Tzanov, M., Uchida, Y., Ueno, K., Vacheret, A., Vagins, M., Vasseur, G., Veledar, O., Wachala, T., Walding, J. J., Waldron, A. V., Walter, C. W., Wanderer, P. J., Wang, J., Ward, M. A., Ward, G. P., Wark, D., Wascko, M. O., Weber, A., Wendell, R., West, N., Whitehead, L. H., Wikström, G., Wilkes, R. J., Wilking, M. J., Williamson, Z., Wilson, J. R., Wilson, R. J., Wongjirad, T., Yamada, S., Yamada, Y., Yamamoto, A., Yamamoto, K., Yamanoi, Y., Yamaoka, H., Yamauchi, T., Yanagisawa, C., Yano, T., Yen, S., Yershov, N., Yokoyama, M., Yuan, T., Zalewska, A., Zalipska, J., Zambelli, L., Zaremba, K., Ziembicki, M., Zimmerman, E. D., Zito, M., and Zmuda, J.

Subjects
High Energy Physics - Experiment
Abstract

We report a measurement of muon-neutrino disappearance in the T2K experiment. The 295-km muon-neutrino beam from Tokai to Kamioka is the first implementation of the off-axis technique in a long-baseline neutrino oscillation experiment. With data corresponding to 1.43 10**20 protons on target, we observe 31 fully-contained single muon-like ring events in Super-Kamiokande, compared with an expectation of 104 +- 14 (syst) events without neutrino oscillations. The best-fit point for two-flavor nu_mu -> nu_tau oscillations is sin**2(2 theta_23) = 0.98 and |\Delta m**2_32| = 2.65 10**-3 eV**2. The boundary of the 90 % confidence region includes the points (sin**2(2 theta_23),|\Delta m**2_32|) = (1.0, 3.1 10**-3 eV**2), (0.84, 2.65 10**-3 eV**2) and (1.0, 2.2 10**-3 eV**2)., Comment: 7 pages, 4 figures

Published
2012
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54. Phase diagram and oxygen annealing effect of FeTe1-xSex iron-based superconductor

Author

Kawasaki, Y., Deguchi, K., Demura, S., Watanabe, T., Okazaki, H., Ozaki, T., Yamaguchi, T., Takeya, H., and Takano, Y.

Subjects
Condensed Matter - Superconductivity
Abstract

Phase diagrams of as-grown and O2-annealed FeTe1-xSex determined from magnetic susceptibility measurement were obtained. For as-grown samples, the antiferromagnetic order was fully suppressed in the range region x \geq 0.15, and weak superconductivity appeared when x \geq 0.1. Beginning at x = 0.5, weak superconductivity was found to evolve into bulk superconductivity. Interestingly, for O2-annealed samples, complete suppression of magnetic order and the occurrence of bulk superconductivity were observed when x \geq 0.1. We found that O2-annealing induces bulk superconductivity for FeTe1-xSex. Oxygen probably plays a key role in the suppression of the magnetic order and the appearance of bulk superconductivity., Comment: 13 pages, 5 figures

Published
2011

55. Measurements of the T2K neutrino beam properties using the INGRID on-axis near detector

Author

Abe, K., Abgrall, N., Ajima, Y., Aihara, H., Albert, J. B., Andreopoulos, C., Andrieu, B., Anerella, M. D., Aoki, S., Araoka, O., Argyriades, J., Ariga, A., Ariga, T., Assylbekov, S., Autiero, D., Badertscher, A., Barbi, M., Barker, G. J., Barr, G., Bass, M., Batkiewicz, M., Bay, F., Bentham, S., Berardi, V., Berger, B. E., Bertram, I., Besnier, M., Beucher, J., Beznosko, D., Bhadra, S., Blaszczyk, F. d. M., Blocki, J., Blondel, A., Bojechko, C., Bouchez, J., Boyd, S. B., Bravar, A., Bronner, C., Brook-Roberge, D. G., Buchanan, N., Budd, H., Calvet, D., Cartwright, S. L., Carver, A., Castillo, R., Catanesi, M. G., Cazes, A., Cervera, A., Chavez, C., Choi, S., Christodoulou, G., Coleman, J., Collazuol, G., Coleman, W., Connolly, K., Curioni, A., Dabrowska, A., Danko, I., Das, R., Davies, G. S., Davis, S., Day, M., De Rosa, G., de André, J. P. A. M., de Perio, P., Dealtry, T., Delbart, A., Densham, C., Di Lodovico, F., Di Luise, S., Tran, P. Dinh, Dobson, J., Dore, U., Drapier, O., Dufour, F., Dumarchez, J., Dytman, S., Dziewiecki, M., Dziomba, M., Emery, S., Ereditato, A., Escallier, J. E., Escudero, L., Esposito, L. S., Fechner, M., Ferrero, A., Finch, A. J., Frank, E., Fujii, Y., Fukuda, Y., Galymov, V., Ganetis, G. L., Gannaway, F. C., Gaudin, A., Gendotti, A., George, M., Giffin, S., Giganti, C., Gilje, K., Ghosh, A. K., Golan, T., Goldhaber, M., Gomez-Cadenas, J. J., Gomi, S., Gonin, M., Grant, N., Grant, A., Gumplinger, P., Guzowski, P., Haesler, A., Haigh, M. D., Hamano, K., Hansen, C., Hansen, D., Hara, T., Harrison, P. F., Hartfiel, B., Hartz, M., Haruyama, T., Hasegawa, T., Hastings, N. C., Hatzikoutelis, A., Hayashi, K., Hayato, Y., Hearty, C., Helmer, R. L., Henderson, R., Higashi, N., Hignight, J., Hillairet, A., Hirose, E., Holeczek, J., Horikawa, S., Hyndman, A., Ichikawa, A. K., Ieki, K., Ieva, M., Iida, M., Ikeda, M., Ilic, J., Imber, J., Ishida, T., Ishihara, C., Ishii, T., Ives, S. J., Iwasaki, M., Iyogi, K., Izmaylov, A., Jamieson, B., Johnson, R. A., Joo, K. K., Jover-Manas, G. V., Jung, C. K., Kaji, H., Kajita, T., Kakuno, H., Kameda, J., Kaneyuki, K., Karlen, D., Kasami, K., Kato, I., Kawamuko, H., Kearns, E., Khabibullin, M., Khanam, F., Khotjantsev, A., Kielczewska, D., Kikawa, T., Kim, J., Kim, J. Y., Kim, S. B., Kimura, N., Kirby, B., Kisiel, J., Kitching, P., Kobayashi, T., Kogan, G., Koike, S., Konaka, A., Kormos, L. L., Korzenev, A., Koseki, K., Koshio, Y., Kouzuma, Y., Kowalik, K., Kravtsov, V., Kreslo, I., Kropp, W., Kubo, H., Kubota, J., Kudenko, Y., Kulkarni, N., Kurimoto, Y., Kurjata, R., Kutter, T., Lagoda, J., Laihem, K., Laveder, M., Lee, K. P., Le, P. T., Levy, J. M., Licciardi, C., Lim, I. T., Lindner, T., Litchfield, R. P., Litos, M., Longhin, A., Lopez, G. D., Loverre, P. F., Ludovici, L., Lux, T., Macaire, M., Mahn, K., Makida, Y., Malek, M., Manly, S., Marchionni, A., Marino, A. D., Marone, A. J., Marteau, J., Martin, J. F., Maruyama, T., Maryon, T., Marzec, J., Masliah, P., Mathie, E. L., Matsumura, C., Matsuoka, K., Matveev, V., Mavrokoridis, K., Mazzucato, E., McCauley, N., McFarland, K. S., McGrew, C., McLachlan, T., Messina, M., Metcalf, W., Metelko, C., Mezzetto, M., Mijakowski, P., Miller, C. A., Minamino, A., Mineev, O., Mine, S., Missert, A. D., Mituka, G., Miura, M., Mizouchi, K., Monfregola, L., Moreau, F., Morgan, B., Moriyama, S., Muir, A., Murakami, A., Muratore, J. F., Murdoch, M., Murphy, S., Myslik, J., Nagai, N., Nakadaira, T., Nakahata, M., Nakai, T., Nakajima, K., Nakamoto, T., Nakamura, K., Nakayama, S., Nakaya, T., Naples, D., Navin, M. L., Nelson, B., Nicholls, T. C., Nielsen, C., Nishikawa, K., Nishino, H., Nitta, K., Nobuhara, T., Nowak, J. A., Obayashi, Y., Ogitsu, T., Ohhata, H., Okamura, T., Okumura, K., Okusawa, T., Oser, S. M., Otani, M., Owen, R. A., Oyama, Y., Ozaki, T., Pac, M. Y., Palladino, V., Paolone, V., Paul, P., Payne, D., Pearce, G. F., Perkin, J. D., Pettinacci, V., Pierre, F., Poplawska, E., Popov, B., Posiadala, M., Poutissou, J. -M., Poutissou, R., Przewlocki, P., Qian, W., Raaf, J. L., Radicioni, E., Ratoff, P. N., Raufer, T. M., Ravonel, M., Raymond, M., Retiere, F., Robert, A., Rodrigues, P. A., Rondio, E., Roney, J. M., Rossi, B., Roth, S., Rubbia, A., Ruterbories, D., Sabouri, S., Sacco, R., Sakashita, K., Sánchez, F., Sarrat, A., Sasaki, K., Scholberg, K., Schwehr, J., Scott, M., Scully, D. I., Seiya, Y., Sekiguchi, T., Sekiya, H., Shibata, M., Shimizu, Y., Shiozawa, M., Short, S., Siyad, M., Smith, R. J., Smy, M., Sobczyk, J. T., Sobel, H., Sorel, M., Stahl, A., Stamoulis, P., Steinmann, J., Still, B., Stone, J., Stodulski, M., Strabel, C., Sulej, R., Suzuki, A., Suzuki, K., Suzuki, S., Suzuki, S. Y., Suzuki, Y., Swierblewski, J., Szeglowski, T., Szeptycka, M., Tacik, R., Tada, M., Taguchi, M., Takahashi, S., Takeda, A., Takenaga, Y., Takeuchi, Y., Tanaka, K., Tanaka, H. A., Tanaka, M., Tanaka, M. M., Tanimoto, N., Tashiro, K., Taylor, I., Terashima, A., Terhorst, D., Terri, R., Thompson, L. F., Thorley, A., Toki, W., Tobayama, S., Tomaru, T., Totsuka, Y., Touramanis, C., Tsukamoto, T., Tzanov, M., Uchida, Y., Ueno, K., Vacheret, A., Vagins, M., Vasseur, G., Wachala, T., Walding, J. J., Waldron, A. V., Walter, C. W., Wanderer, P. J., Wang, J., Ward, M. A., Ward, G. P., Wark, D., Wascko, M. O., Weber, A., Wendell, R., West, N., Whitehead, L. H., Wikström, G., Wilkes, R. J., Wilking, M. J., Williamson, Z., Wilson, J. R., Wilson, R. J., Wongjirad, T., Yamada, S., Yamada, Y., Yamamoto, A., Yamamoto, K., Yamanoi, Y., Yamaoka, H., Yamauchi, T., Yanagisawa, C., Yano, T., Yen, S., Yershov, N., Yokoyama, M., Yuan, T., Zalewska, A., Zalipska, J., Zambelli, L., Zaremba, K., Ziembicki, M., Zimmerman, E. D., Zito, M., and Zmuda, J.

Subjects
Physics - Instrumentation and Detectors
Abstract

Precise measurement of neutrino beam direction and intensity was achieved based on a new concept with modularized neutrino detectors. INGRID (Interactive Neutrino GRID) is an on-axis near detector for the T2K long baseline neutrino oscillation experiment. INGRID consists of 16 identical modules arranged in horizontal and vertical arrays around the beam center. The module has a sandwich structure of iron target plates and scintillator trackers. INGRID directly monitors the muon neutrino beam profile center and intensity using the number of observed neutrino events in each module. The neutrino beam direction is measured with accuracy better than 0.4 mrad from the measured profile center. The normalized event rate is measured with 4% precision., Comment: 32 pages, 27 figures, submitted to Nucl. Instr. and Meth. A

Published
2011
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56. High-precision CTE measurement of hybrid C/SiC composite for cryogenic space telescopes

Author

Enya, K., Yamada, N., Imai, T., Tange, Y., Kaneda, H., Katayama, H., Kotani, M., Maruyama, K., Naitoh, M., Nakagawa, T., Onaka, T., Suganuma, M., Ozaki, T., Kume, M., and Krodel, M. R.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

This paper presents highly precise measurements of thermal expansion of a "hybrid" carbon-fiber reinforced silicon carbide composite, HB-Cesic\textregistered - a trademark of ECM, in the temperature region of \sim310-10K. Whilst C/SiC composites have been considered to be promising for the mirrors and other structures of space-borne cryogenic telescopes, the anisotropic thermal expansion has been a potential disadvantage of this material. HB-Cesic\textregistered is a newly developed composite using a mixture of different types of chopped, short carbon-fiber, in which one of the important aims of the development was to reduce the anisotropy. The measurements indicate that the anisotropy was much reduced down to 4% as a result of hybridization. The thermal expansion data obtained are presented as functions of temperature using eighth-order polynomials separately for the horizontal (XY-) and vertical (Z-) directions of the fabrication process. The average CTEs and their dispersion (1{\sigma}) in the range 293-10K derived from the data for the XY- and Z-directions were 0.805$\pm$0.003\times10$^{-6}$ K$^{-1}$ and 0.837\pm0.001\times10$^{-6}$ K$^{-1}$, respectively. The absolute accuracy and the reproducibility of the present measurements are suggested to be better than 0.01\times10$^{-6}$ K$^{-1}$ and 0.001\times(10)^{-6} K^{-1}, respectively. The residual anisotropy of the thermal expansion was consistent with our previous speculation regarding carbon-fiber, in which the residual anisotropy tended to lie mainly in the horizontal plane., Comment: Accepted by Cryogeincs. 12 pages, 3 figures, 1 tablle

Published
2011
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57. Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam

Author

T2K Collaboration, Abe, K., Abgrall, N., Ajima, Y., Aihara, H., Albert, J. B., Andreopoulos, C., Andrieu, B., Aoki, S., Araoka, O., Argyriades, J., Ariga, A., Ariga, T., Assylbekov, S., Autiero, D., Badertscher, A., Barbi, M., Barker, G. J., Barr, G., Bass, M., Bay, F., Bentham, S., Berardi, V., Berger, B. E., Bertram, I., Besnier, M., Beucher, J., Beznosko, D., Bhadra, S., Blaszczyk, F. d. M., Blondel, A., Bojechko, C., Bouchez, J., Boyd, S. B., Bravar, A., Bronner, C., Brook-Roberge, D. G., Buchanan, N., Budd, H., Calvet, D., Cartwright, S. L., Carver, A., Castillo, R., Catanesi, M. G., Cazes, A., Cervera, A., Chavez, C., Choi, S., Christodoulou, G., Coleman, J., Coleman, W., Collazuol, G., Connolly, K., Curioni, A., Dabrowska, A., Danko, I., Das, R., Davies, G. S., Davis, S., Day, M., DeRosa, G., de Andre, J. P. A. M., dePerio, P., Delbart, A., Densham, C., DiLodovico, F., DiLuise, S., Tran, P. Dinh, Dobson, J., Dore, U., Drapier, O., Dufour, F., Dumarchez, J., Dytman, S., Dziewiecki, M., Dziomba, M., Emery, S., Ereditato, A., Escudero, L., Esposito, L. S., Fechner, M., Ferrero, A., Finch, A. J., Frank, E., Fujii, Y., Fukuda, Y., Galymov, V., Gannaway, F. C., Gaudin, A., Gendotti, A., George, M., Giffin, S., Giganti, C., Gilje, K., Golan, T., Goldhaber, M., Gomez-Cadenas, J. J., Gonin, M., Grant, N., Grant, A., Gumplinger, P., Guzowski, P., Haesler, A., Haigh, M. D., Hamano, K., Hansen, C., Hansen, D., Hara, T., Harrison, P. F., Hartfiel, B., Hartz, M., Haruyama, T., Hasegawa, T., Hastings, N. C., Hastings, S., Hatzikoutelis, A., Hayashi, K., Hayato, Y., Hearty, C., Helmer, R. L., Henderson, R., Higashi, N., Hignight, J., Hirose, E., Holeczek, J., Horikawa, S., Hyndman, A., Ichikawa, A. K., Ieki, K., Ieva, M., Iida, M., Ikeda, M., Ilic, J., Imber, J., Ishida, T., Ishihara, C., Ishii, T., Ives, S. J., Iwasaki, M., Iyogi, K., Izmaylov, A., Jamieson, B., Johnson, R. A., Joo, K. K., Jover-Manas, G. V., Jung, C. K., Kaji, H., Kajita, T., Kakuno, H., Kameda, J., Kaneyuki, K., Karlen, D., Kasami, K., Kato, I., Kearns, E., Khabibullin, M., Khanam, F., Khotjantsev, A., Kielczewska, D., Kikawa, T., Kim, J., Kim, J. Y., Kim, S. B., Kimura, N., Kirby, B., Kisiel, J., Kitching, P., Kobayashi, T., Kogan, G., Koike, S., Konaka, A., Kormos, L. L., Korzenev, A., Koseki, K., Koshio, Y., Kouzuma, Y., Kowalik, K., Kravtsov, V., Kreslo, I., Kropp, W., Kubo, H., Kudenko, Y., Kulkarni, N., Kurjata, R., Kutter, T., Lagoda, J., Laihem, K., Laveder, M., Lee, K. P., Le, P. T., Levy, J. M., Licciardi, C., Lim, I. T., Lindner, T., Litchfield, R. P., Litos, M., Longhin, A., Lopez, G. D., Loverre, P. F., Ludovici, L., Lux, T., Macaire, M., Mahn, K., Makida, Y., Malek, M., Manly, S., Marchionni, A., Marino, A. D., Marteau, J., Martin, J. F., Maruyama, T., Maryon, T., Marzec, J., Masliah, P., Mathie, E. L., Matsumura, C., Matsuoka, K., Matveev, V., Mavrokoridis, K., Mazzucato, E., McCauley, N., McFarland, K. S., McGrew, C., McLachlan, T., Messina, M., Metcalf, W., Metelko, C., Mezzetto, M., Mijakowski, P., Miller, C. A., Minamino, A., Mineev, O., Mine, S., Missert, A. D., Mituka, G., Miura, M., Mizouchi, K., Monfregola, L., Moreau, F., Morgan, B., Moriyama, S., Muir, A., Murakami, A., Murdoch, M., Murphy, S., Myslik, J., Nakadaira, T., Nakahata, M., Nakai, T., Nakajima, K., Nakamoto, T., Nakamura, K., Nakayama, S., Nakaya, T., Naples, D., Navin, M. L., Nelson, B., Nicholls, T. C., Nishikawa, K., Nishino, H., Nowak, J. A., Noy, M., Obayashi, Y., Ogitsu, T., Ohhata, H., Okamura, T., Okumura, K., Okusawa, T., Oser, S. M., Otani, M., Owen, R. A., Oyama, Y., Ozaki, T., Pac, M. Y., Palladino, V., Paolone, V., Paul, P., Payne, D., Pearce, G. F., Perkin, J. D., Pettinacci, V., Pierre, F., Poplawska, E., Popov, B., Posiadala, M., Poutissou, J. -M., Poutissou, R., Przewlocki, P., Qian, W., Raaf, J. L., Radicioni, E., Ratoff, P. N., Raufer, T. M., Ravonel, M., Raymond, M., Retiere, F., Robert, A., Rodrigues, P. A., Rondio, E., Roney, J. M., Rossi, B., Roth, S., Rubbia, A., Ruterbories, D., Sabouri, S., Sacco, R., Sakashita, K., Sanchez, F., Sarrat, A., Sasaki, K., Scholberg, K., Schwehr, J., Scott, M., Scully, D. I., Seiya, Y., Sekiguchi, T., Sekiya, H., Shibata, M., Shimizu, Y., Shiozawa, M., Short, S., Syiad, M., Smith, R. J., Smy, M., Sobczyk, J. T., Sobel, H., Sorel, M., Stahl, A., Stamoulis, P., Steinmann, J., Still, B., Stone, J., Strabel, C., Sulak, L. R., Sulej, R., Sutcliffe, P., Suzuki, A., Suzuki, K., Suzuki, S., Suzuki, S. Y., Suzuki, Y., Szeglowski, T., Szeptycka, M., Tacik, R., Tada, M., Takahashi, S., Takeda, A., Takenaga, Y., Takeuchi, Y., Tanaka, K., Tanaka, H. A., Tanaka, M., Tanaka, M. M., Tanimoto, N., Tashiro, K., Taylor, I., Terashima, A., Terhorst, D., Terri, R., Thompson, L. F., Thorley, A., Toki, W., Tomaru, T., Totsuka, Y., Touramanis, C., Tsukamoto, T., Tzanov, M., Uchida, Y., Ueno, K., Vacheret, A., Vagins, M., Vasseur, G., Wachala, T., Walding, J. J., Waldron, A. V., Walter, C. W., Wanderer, P. J., Wang, J., Ward, M. A., Ward, G. P., Wark, D., Wascko, M. O., Weber, A., Wendell, R., West, N., Whitehead, L. H., Wikstrom, G., Wilkes, R. J., Wilking, M. J., Wilson, J. R., Wilson, R. J., Wongjirad, T., Yamada, S., Yamada, Y., Yamamoto, A., Yamamoto, K., Yamanoi, Y., Yamaoka, H., Yanagisawa, C., Yano, T., Yen, S., Yershov, N., Yokoyama, M., Zalewska, A., Zalipska, J., Zambelli, L., Zaremba, K., Ziembicki, M., Zimmerman, E. D., Zito, M., and Zmuda, J.

Subjects
High Energy Physics - Experiment
Abstract

The T2K experiment observes indications of $\nu_\mu\rightarrow \nu_e$ appearance in data accumulated with $1.43\times10^{20}$ protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with $|\Delta m_{23}^2|=2.4\times10^{-3}$ eV$^2$, $\sin^2 2\theta_{23}=1$ and $\sin^2 2\theta_{13}=0$, the expected number of such events is 1.5$\pm$0.3(syst.). Under this hypothesis, the probability to observe six or more candidate events is 7$\times10^{-3}$, equivalent to 2.5$\sigma$ significance. At 90% C.L., the data are consistent with 0.03(0.04)$<\sin^2 2\theta_{13}<$ 0.28(0.34) for $\delta_{\rm CP}=0$ and a normal (inverted) hierarchy., Comment: 20 pages, 6 figures, version published in PRL

Published
2011
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58. The T2K Experiment

Author

T2K Collaboration, Abe, K., Abgrall, N., Aihara, H., Ajima, Y., Albert, J. B., Allan, D., Amaudruz, P. -A., Andreopoulos, C., Andrieu, B., Anerella, M. D., Angelsen, C., Aoki, S., Araoka, O., Argyriades, J., Ariga, A., Ariga, T., Assylbekov, S., de André, J. P. A. M., Autiero, D., Badertscher, A., Ballester, O., Barbi, M., Barker, G. J., Baron, P., Barr, G., Bartoszek, L., Batkiewicz, M., Bay, F., Bentham, S., Berardi, V., Berger, B. E., Berns, H., Bertram, I., Besnier, M., Beucher, J., Beznosko, D., Bhadra, S., Birney, P., Bishop, D., Blackmore, E., Blaszczyk, F. d. M., Blocki, J., Blondel, A., Bodek, A., Bojechko, C., Bouchez, J., Boussuge, T., Boyd, S. B., Boyer, M., Braam, N., Bradford, R., Bravar, A., Briggs, K., Brinson, J. D., Bronner, C., Brook-Roberge, D. G., Bryant, M., Buchanan, N., Budd, H., Cadabeschi, M., Calland, R. G., Calvet, D., Rodríguez, J. Caravaca, Carroll, J., Cartwright, S. L., Carver, A., Castillo, R., Catanesi, M. G., Cavata, C., Cazes, A., Cervera, A., Charrier, J. P., Chavez, C., Choi, S., Chollet, S., Christodoulou, G., Colas, P., Coleman, J., Coleman, W., Collazuol, G., Connolly, K., Cooke, P., Curioni, A., Dabrowska, A., Danko, I., Das, R., Davies, G. S., Davis, S., Day, M., De La Broise, X., de Perio, P., De Rosa, G., Dealtry, T., Debraine, A., Delagnes, E., Delbart, A., Densham, C., Di Lodovico, F., Di Luise, S., Tran, P. Dinh, Dobson, J., Doornbos, J., Dore, U., Drapier, O., Druillole, F., Dufour, F., Dumarchez, J., Durkin, T., Dytman, S., Dziewiecki, M., Dziomba, M., Ellison, B., Emery, S., Ereditato, A., Escallier, J. E., Escudero, L., Esposito, L. S., Faszer, W., Fechner, M., Ferrero, A., Finch, A., Fisher, C., Fitton, M., Flight, R., Forbush, D., Frank, E., Fransham, K., Fujii, Y., Fukuda, Y., Gallop, M., Galymov, V., Ganetis, G. L., Gannaway, F. C., Gaudin, A., Gaweda, J., Gendotti, A., George, M., Giffin, S., Giganti, C., Gilje, K., Giomataris, I., Giraud, J., Ghosh, A. K., Golan, T., Goldhaber, M., Gomez-Cadenas, J. J., Gomi, S., Gonin, M., Goyette, M., Grant, A., Grant, N., Grañena, F., Greenwood, S., Gumplinger, P., Guzowski, P., Haigh, M. D., Hamano, K., Hansen, C., Hara, T., Harrison, P. F., Hartfiel, B., Hartz, M., Haruyama, T., Hasanen, R., Hasegawa, T., Hastings, N. C., Hastings, S., Hatzikoutelis, A., Hayashi, K., Hayato, Y., Haycock, T. D. J., Hearty, C., Helmer, R. L., Henderson, R., Herlant, S., Higashi, N., Hignight, J., Hiraide, K., Hirose, E., Holeczek, J., Honkanen, N., Horikawa, S., Hyndman, A., Ichikawa, A. K., Ieki, K., Ieva, M., Iida, M., Ikeda, M., Ilic, J., Imber, J., Ishida, T., Ishihara, C., Ishii, T., Ives, S. J., Iwasaki, M., Iyogi, K., Izmaylov, A., Jamieson, B., Johnson, R. A., Joo, K. K., Jover-Manas, G., Jung, C. K., Kaji, H., Kajita, T., Kakuno, H., Kameda, J., Kaneyuki, K., Karlen, D., Kasami, K., Kasey, V., Kato, I., Kawamuko, H., Kearns, E., Kellet, L., Khabibullin, M., Khaleeq, M., Khan, N., Khotjantsev, A., Kielczewska, D., Kikawa, T., Kim, J. Y., Kim, S. -B., Kimura, N., Kirby, B., Kisiel, J., Kitching, P., Kobayashi, T., Kogan, G., Koike, S., Komorowski, T., Konaka, A., Kormos, L. L., Korzenev, A., Koseki, K., Koshio, Y., Kouzuma, Y., Kowalik, K., Kravtsov, V., Kreslo, I., Kropp, W., Kubo, H., Kubota, J., Kudenko, Y., Kulkarni, N., Kurchaninov, L., Kurimoto, Y., Kurjata, R., Kurosawa, Y., Kutter, T., Lagoda, J., Laihem, K., Langstaff, R., Laveder, M., Lawson, T. B., Le, P. T., Coguie, A. Le, Ross, M. Le, Lee, K. P., Lenckowski, M., Licciardi, C., Lim, I. T., Lindner, T., Litchfield, R. P., Longhin, A., Lopez, G. D., Lu, P., Ludovici, L., Lux, T., Macaire, M., Magaletti, L., Mahn, K., Makida, Y., Malafis, C. J., Malek, M., Manly, S., Marchionni, A., Mark, C., Marino, A. D., Marone, A. J., Marteau, J., Martin, J. F., Maruyama, T., Maryon, T., Marzec, J., Masliah, P., Mathie, E. L., Matsumura, C., Matsuoka, K., Matveev, V., Mavrokoridis, K., Mazzucato, E., McCauley, N., McFarland, K. S., McGrew, C., McLachlan, T., Mercer, I., Messina, M., Metcalf, W., Metelko, C., Mezzetto, M., Mijakowski, P., Miller, C. A., Minamino, A., Mineev, O., Mine, S., Minvielle, R. E., Mituka, G., Miura, M., Mizouchi, K., Mols, J. -P., Monfregola, L., Monmarthe, E., Moreau, F., Morgan, B., Moriyama, S., Morris, D., Muir, A., Murakami, A., Muratore, J. F., Murdoch, M., Murphy, S., Myslik, J., Nagashima, G., Nakadaira, T., Nakahata, M., Nakamoto, T., Nakamura, K., Nakayama, S., Nakaya, T., Naples, D., Nelson, B., Nicholls, T. C., Nishikawa, K., Nishino, H., Nitta, K., Nizery, F., Nowak, J. A., Noy, M., Obayashi, Y., Ogitsu, T., Ohhata, H., Okamura, T., Okumura, K., Okusawa, T., Ohlmann, C., Olchanski, K., Openshaw, R., Oser, S. M., Otani, M., Owen, R. A., Oyama, Y., Ozaki, T., Pac, M. Y., Palladino, V., Paolone, V., Paul, P., Payne, D., Pearce, G. F., Pearson, C., Perkin, J. D., Pfleger, M., Pierre, F., Pierrepont, D., Plonski, P., Poffenberger, P., Poplawska, E., Popov, B., Posiadala, M., Poutissou, J. -M., Poutissou, R., Preece, R., Przewlocki, P., Qian, W., Raaf, J. L., Radicioni, E., Ramos, K., Ratoff, P., Raufer, T. M., Ravonel, M., Raymond, M., Retiere, F., Richards, D., Ritou, J. -L., Robert, A., Rodrigues, P. A., Rondio, E., Roney, M., Rooney, M., Ross, D., Rossi, B., Roth, S., Rubbia, A., Ruterbories, D., Sacco, R., Sadler, S., Sakashita, K., Sanchez, F., Sarrat, A., Sasaki, K., Schaack, P., Schmidt, J., Scholberg, K., Schwehr, J., Scott, M., Scully, D. I., Seiya, Y., Sekiguchi, T., Sekiya, H., Sheffer, G., Shibata, M., Shimizu, Y., Shiozawa, M., Short, S., Siyad, M., Smith, D., Smith, R. J., Smy, M., Sobczyk, J., Sobel, H., Sooriyakumaran, S., Sorel, M., Spitz, J., Stahl, A., Stamoulis, P., Star, O., Statter, J., Stawnyczy, L., Steinmann, J., Steffens, J., Still, B., Stodulski, M., Stone, J., Strabel, C., Strauss, T., Sulej, R., Sutcliffe, P., Suzuki, A., Suzuki, K., Suzuki, S., Suzuki, S. Y., Suzuki, Y., Swierblewski, J., Szeglowski, T., Szeptycka, M., Tacik, R., Tada, M., Tadepalli, A. S., Taguchi, M., Takahashi, S., Takeda, A., Takenaga, Y., Takeuchi, Y., Tanaka, H. A., Tanaka, K., Tanaka, M., Tanaka, M. M., Tanimoto, N., Tashiro, K., Taylor, I. J., Terashima, A., Terhorst, D., Terri, R., Thompson, L. F., Thorley, A., Thorpe, M., Toki, W., Tomaru, T., Totsuka, Y., Touramanis, C., Tsukamoto, T., Tvaskis, V., Tzanov, M., Uchida, Y., Ueno, K., Usseglio, M., Vacheret, A., Vagins, M., Van Schalkwyk, J. F., Vanel, J. -C., Vasseur, G., Veledar, O., Vincent, P., Wachala, T., Waldron, A. V., Walter, C. W., Wanderer, P. J., Ward, M. A., Ward, G. P., Wark, D., Warner, D., Wascko, M. O., Weber, A., Wendell, R., Wendland, J., West, N., Whitehead, L. H., Wikström, G., Wilkes, R. J., Wilking, M. J., Williamson, Z., Wilson, J. R., Wilson, R. J., Wong, K., Wongjirad, T., Yamada, S., Yamada, Y., Yamamoto, A., Yamamoto, K., Yamanoi, Y., Yamaoka, H., Yanagisawa, C., Yano, T., Yen, S., Yershov, N., Yokoyama, M., Zalewska, A., Zalipska, J., Zaremba, K., Ziembicki, M., Zimmerman, E. D., Zito, M., and Zmuda, J.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The T2K experiment is a long-baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton sector mixing angle {\theta}_{13} by observing {\nu}_e appearance in a {\nu}_{\mu} beam. It also aims to make a precision measurement of the known oscillation parameters, {\Delta}m^{2}_{23} and sin^{2} 2{\theta}_{23}, via {\nu}_{\mu} disappearance studies. Other goals of the experiment include various neutrino cross section measurements and sterile neutrino searches. The experiment uses an intense proton beam generated by the J-PARC accelerator in Tokai, Japan, and is composed of a neutrino beamline, a near detector complex (ND280), and a far detector (Super-Kamiokande) located 295 km away from J-PARC. This paper provides a comprehensive review of the instrumentation aspect of the T2K experiment and a summary of the vital information for each subsystem., Comment: 33 pages, 32 figures, Submitted and accepted by NIM A. Editor: Prof. Chang Kee Jung, Department of Physics and Astronomy, SUNY Stony Brook, chang.jung@sunysb.edu, 631-632-8108 Submit Edited to remove line numbers

Published
2011
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59. Pressure study of the new iron-based superconductor K0.8Fe2Se2

Author

Kawasaki, Y., Mizuguchi, Y., Deguchi, K., Watanabe, T., Ozaki, T., Tsuda, S., Yamaguchi, T., Takeya, Hiroyuki, and Takano, Y.

Subjects
Condensed Matter - Superconductivity
Abstract

We investigated pressure effects on transition temperature (Tc) of the new iron-based superconductor K0.8Fe2Se2 using a BeCu/NiCrAl hybrid-type clamped piston-cylinder cell. The Tc(onset) was 33K at 0.85 GPa. With increasing pressure, Tc(onset) gradually increased and reached 36.6 K at 2.03 GPa., Comment: 8 pages, 3 figures

Published
2011
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60. Microstructure and transport properties of FeTe0.5Se0.5 superconducting wires fabricated by ex-situ Powder-in-tube process

Author

Ozaki, T., Deguchi, K., Mizuguchi, Y., Kumakura, H., and Takano, Y.

Subjects
Condensed Matter - Superconductivity
Abstract

We fabricated FeTe0.5Se0.5 superconducting wires using ex-situ Powder-in-tube method with an Fe sheath. It was amazing that superconducting current was observed in the as-drawn wire without any heat treatments. By heat treatment at 200C for 2 hours, Tczero and Jc at 4.2 K were enhanced up to 9.1 K and 64.1 A/cm2 (Ic = 182.6 mA), respectively. Furthermore, the Jc of FeTe0.5Se0.5 wire heat treated at 200C for 2 hours was not much sensitive to the applied magnetic fields. Therefore, FeTe0.5Se0.5 wires have a great potential for applications., Comment: 15 pages, 5 figures

Published
2010
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61. Anisotropic ultrafast electron dynamics induced by high-field terahertz pulses in n-doped InGaAs

Author

Blanchard, F., Golde, D., Su, F. H., Razzari, L., Sharma, G., Morandotti, R., Ozaki, T., Reid, M., Kira, M., Koch, S. W., and Hegmann, F. A.

Subjects
Condensed Matter - Materials Science
Abstract

The anisotropic effective mass of electrons is directly measured using time-resolved THz- pump/THz-probe techniques in a n-doped InGaAs semiconductor thin film. A microscopic theory is used to attribute this anisotropy in the THz probe transmission to the nonparabolicity of the conduction band. Self-consistent light-matter coupling is shown to contribute significantly to the THz response.

Published
2010

62. Design and performance of the muon monitor for the T2K neutrino oscillation experiment

Author

Matsuoka, K., Ichikawa, A. K., Kubo, H., Maeda, K., Maruyama, T., Matsumura, C., Murakami, A., Nakaya, T., Nishikawa, K., Ozaki, T., Sakashita, K., Suzuki, K., Suzuki, S. Y., Tashiro, K., Yamamoto, K., and Yokoyama, M.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

This article describes the design and performance of the muon monitor for the T2K (Tokaito-Kamioka) long baseline neutrino oscillation experiment. The muon monitor consists of two types of detector arrays: ionization chambers and silicon PIN photodiodes. It measures the intensity and profile of muons produced, along with neutrinos, in the decay of pions. The measurement is sensitive to the intensity and direction of the neutrino beam. The linearity and stability of the detectors were measured in beam tests to be within 2.4% and 1.5%, respectively. Based on the test results, the precision of the beam direction measured by the muon monitor is expected to be 0.25 mrad., Comment: 22 pages

Published
2010
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63. Transport properties of iron-based FeTe0.5Se0.5 superconducting wire

Author

Ozaki, T., Deguchi, K., Mizuguchi, Y., Kumakura, H., and Takano, Y.

Subjects
Condensed Matter - Superconductivity
Abstract

FeTe0.5Se0.5 superconducting wires have been fabricated using ex-situ PIT method with an Fe sheath. Among the other FeAs-based superconductor, FeTe0.5Se0.5 has great advantage for application due to binary composition and less toxic. Surprisingly, superconducting current was observed in the as-fabricated wire without any heat treatments. Zero resistivity and transport critical current density (Jc) were 3.2 K and 2.8 A/cm2, respectively. In addition, by annealing at 200 degC for 2 h, critical temperature Tczero and Jc were enhanced up to 9.1 K, and 64.1 A/cm2, respectively. This suggests that the grain connectivity was improved by heat treatment, and superconducting property of FeTe0.5Se0.5 wire was enhanced., Comment: text 4 pages, 5 figures, 1 table

Published
2010
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64. Alcoholic beverages induce superconductivity in FeTe$_{1-x}$S$_x$

Author

Deguchi, K, Mizuguchi, Y, Kawasaki, Y, Ozaki, T, Tsuda, S, Yamaguchi, T, and Takano, Y

Subjects
Condensed Matter - Superconductivity
Abstract

We found that hot alcoholic beverages were effective in inducing superconductivity in FeTe$_{0.8}$S0$_{.2}$. Heating FeTe$_{0.8}$S0$_{.2}$ compound in various alcoholic beverages enhances the superconducting properties compared to pure water-ethanol mixture as a control. Heating with red wine for 24 hours leads to the largest shielding volume fraction of 62.4% and the highest zero resistivity temperature of 7.8 K. Some components present in alcoholic beverages, other than water and ethanol, have the ability to induce superconductivity in FeTe$_{0.8}$S0$_{.2}$ compound., Comment: 12 pages, 4 figures, accepted for publication in Supercond. Sci. Technol

Published
2010
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65. Semianalytical treatment of current density of particles injected by a monoenergetic source

Author

Goncharov, P. R., Kuteev, B. V., Sergeev, V. Yu., Ozaki, T., and Sudo, S.

Subjects
Physics - Plasma Physics
Abstract

This paper extends the semianalytical treatment of fast ion current density to take into account time dependence and velocity diffusion using solutions of Boltzmann equation with a complete Coulomb collision term (Goncharov et al. 2010 Phys. Plasmas 17 112313). An arbitrary angle distribution of the fast ion source is assumed. The results are applicable to multi-ion-species plasma. Since analytical results provide an extra physical insight and constitute a reliable basis for verification of numerical codes, it is desirable to obtain exact solutions where possible. New results clarify the discrepancies between analytical formulae in earlier bibliography and improve the physical basis of neutral beam injection current drive., Comment: 10 pages, 2 figures, 1 table

Published
2010
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66. Nonlinear ultrafast modulation of the optical absorption of few cycle terahertz pulses in n-doped semiconductors

Author

Razzari, L, Su, F H, Sharma, G, Blanchard, F, Ayesheshim, A, Bandulet, H-C, Morandotti, R, Kieffer, J-C, Ozaki, T, Reid, M, and Hegmann, F A

Subjects
Physics - Optics
Abstract

We use an open-aperture Z-scan technique to show how intense few-cycle terahertz pulses can experience a nonlinear bleaching of absorption in an n-doped semiconductor due to terahertz-electric-field-driven intervalley scattering of electrons in the conduction band. Coherent detection of the transmitted terahertz pulse waveform also allows the nonlinear conductivity dynamics to be followed with sub-picosecond time resolution. Both the Z-scan and time-domain results are found to be in agreement with our theoretical analysis., Comment: Submitted to Physical Review B, 16 pages, 3 figures, 1 table

Published
2009
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70. Intruder configurations in 29Ne at the transition into the island of inversion: Detailed structure study of 28Ne

Author

Wang, H., primary, Yasuda, M., additional, Kondo, Y., additional, Nakamura, T., additional, Tostevin, J.A., additional, Ogata, K., additional, Otsuka, T., additional, Poves, A., additional, Shimizu, N., additional, Yoshida, K., additional, Achouri, N.L., additional, Al Falou, H., additional, Atar, L., additional, Aumann, T., additional, Baba, H., additional, Boretzky, K., additional, Caesar, C., additional, Calvet, D., additional, Chae, H., additional, Chiga, N., additional, Corsi, A., additional, Crawford, H.L., additional, Delaunay, F., additional, Delbart, A., additional, Deshayes, Q., additional, Dombrádi, Zs., additional, Douma, C., additional, Elekes, Z., additional, Fallon, P., additional, Gašparić, I., additional, Gheller, J.-M., additional, Gibelin, J., additional, Gillibert, A., additional, Harakeh, M.N., additional, Hirayama, A., additional, Hoffman, C.R., additional, Holl, M., additional, Horvat, A., additional, Horváth, Á., additional, Hwang, J.W., additional, Isobe, T., additional, Kahlbow, J., additional, Kalantar-Nayestanaki, N., additional, Kawase, S., additional, Kim, S., additional, Kisamori, K., additional, Kobayashi, T., additional, Körper, D., additional, Koyama, S., additional, Kuti, I., additional, Lapoux, V., additional, Lindberg, S., additional, Marqués, F.M., additional, Masuoka, S., additional, Mayer, J., additional, Miki, K., additional, Murakami, T., additional, Najafi, M.A., additional, Nakano, K., additional, Nakatsuka, N., additional, Nilsson, T., additional, Obertelli, A., additional, Orr, N.A., additional, Otsu, H., additional, Ozaki, T., additional, Panin, V., additional, Paschalis, S., additional, Revel, A., additional, Rossi, D., additional, Saito, A.T., additional, Saito, T., additional, Sasano, M., additional, Sato, H., additional, Satou, Y., additional, Scheit, H., additional, Schindler, F., additional, Schrock, P., additional, Shikata, M., additional, Shimizu, Y., additional, Simon, H., additional, Sohler, D., additional, Sorlin, O., additional, Stuhl, L., additional, Takeuchi, S., additional, Tanaka, M., additional, Thoennessen, M., additional, Törnqvist, H., additional, Togano, Y., additional, Tomai, T., additional, Tscheuschner, J., additional, Tsubota, J., additional, Uesaka, T., additional, Yang, Z., additional, and Yoneda, K., additional

Published
2023
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71. Structure of Beryllium Isotopes Beyond the Neutron Dripline

Author

Monteagudo, B., primary, Gibelin, J., additional, Marqués, F. M., additional, Corsi, A., additional, Kubota, Y., additional, Orr, N. A., additional, Authelet, G., additional, Baba, H., additional, Caesar, C., additional, Calvet, D., additional, Delbart, A., additional, Dozono, M., additional, Feng, J., additional, Flavigny, F., additional, Gheller, J. M., additional, Giganon, A., additional, Gillibert, A., additional, Hasegawa, K., additional, Isobe, T., additional, Kanaya, Y., additional, Kawakami, S., additional, Kim, D., additional, Kiyokawa, Y., additional, Kobayashi, M., additional, Kobayashi, N., additional, Kobayashi, T., additional, Kondo, Y., additional, Korkulu, Z., additional, Koyama, S., additional, Lapoux, V., additional, Maeda, Y., additional, Motobayashi, T., additional, Miyazaki, T., additional, Nakamura, T., additional, Nakatsuka, N., additional, Nishio, Y., additional, Obertelli, A., additional, Ohkura, A., additional, Ota, S., additional, Otsu, H., additional, Ozaki, T., additional, Panin, V., additional, Paschalis, S., additional, Pollacco, E. C., additional, Reichert, S., additional, Rousse, J. Y., additional, Saito, A. T., additional, Sakaguchi, S., additional, Sako, M., additional, Santamaria, C., additional, Sasano, M., additional, Sato, H., additional, Shikata, M., additional, Shimizu, Y., additional, Shindo, Y., additional, Stuhl, L., additional, Sumikama, T., additional, Tabata, M., additional, Togano, Y., additional, Tsubota, J., additional, Uesaka, T., additional, Yang, Z. H., additional, Yasuda, J., additional, Yoneda, K., additional, and Zenihiro, J., additional

Published
2020
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72. Compensation of the Crossing Angle with Crab Cavities at KEKB

Author

Abe, T., Akai, K., Akemoto, M., Akiyama, A., Arinaga, M., Ebihara, K., Egawa, K., Enomoto, A., Flanagan, J., Fukuda, S., Fukuma, H., Funakoshi, Y., Furukawa, K., Furuya, T., Hara, K., Higo, T., Hiramatsu, S., Hisamatsu, H., Honma, H., Honma, T., Hosoyama, K., Ieiri, T., Iida, N., Ikeda, H., Ikeda, M., Inagaki, S., Isagawa, S., Ishii, H., Kabe, A., Kadokura, E., Kageyama, T., Kakihara, K., Kako, E., Kamada, S., Kamitani, T., Kanazawa, K., Katagiri, H., Kato, S., Kawamoto, T., Kazakov, S., Kikuchi, M., Kikutani, E., Kitagawa, K., Koiso, H., Kojima, Y., Komada, I., Kubo, T., Kudo, K., Kudo, N., Marutsuka, K., Masuzawa, M., Matsumoto, S., Matsumoto, T., Michizono, S., Mikawa, K., Mimashi, T., Mitsunobu, S., Mori, K., Morita, A., Morita, Y., Nakai, H., Nakajima, H., Nakamura, T. T., Nakanishi, H., Nakanishi, K., Nakao, K., Ninomiya, S., Ogawa, Y., Ohmi, K., Ohsawa, S., Ohsawa, Y., Ohnishi, Y., Ohuchi, N., Oide, K., Ono, M., Ozaki, T., Saito, K., Sakai, H., Sakamoto, Y., Sato, M., Satoh, M., Shibata, K., Shidara, T., Shirai, M., Shirakawa, A., Sueno, T., Suetake, M., Suetsugu, Y., Sugahara, R., Sugimura, T., Suwada, T., Tajima, O., Takano, S., Takasaki, S., Takenaka, T., Takeuchi, Y., Tawada, M., Tejima, M., Tobiyama, M., Tokuda, N., Uehara, S., Uno, S., Yamamoto, Y., Yano, Y., Yokoyama, K., Yoshida, Ma., Yoshida, Mi., Yoshimoto, S., Yoshino, K., KEK, Oho, Tsukuba, Perevedentsev, E., Shatilov, D. N., and BINP

Subjects
Physics - Instrumentation and Detectors
Abstract

Crab cavities have been installed in the KEKB B--Factory rings to compensate the crossing angle at the collision point and thus increase luminosity. The beam operation with crab crossing has been done since February 2007. This is the first experience with such cavities in colliders or storage rings. The crab cavities have been working without serious issues. While higher specific luminosity than the geometrical gain has been achieved, further study is necessary and under way to reach the prediction of simulation., Comment: Submitted to Particle Accelerator Conference 2007, MOZAKI01, Albuquerque

Published
2007

74. Convergent recursive O(N) calculations for ab initio tight-binding

Author

Ozaki, T. and Terakura, K.

Subjects
Condensed Matter
Abstract

A theory is presented for a novel recursion method for O(N) ab initio tight-binding calculations. A long-standing problem of generalizing the recursion method to a non-orthogonal basis, which is a crucial step to make the recursion method applicable to ab initio calculations, is solved by the introduction of the hybrid representation and the two-sided block Lanczos algorithm. As a test of efficiency of the new method, convergence properties in energy and force of insulators, semiconductors, metals, and molecules are studied for not only simple model systems but also some real materials within the density functional theory. The present O(N) method possesses good convergence properties for metals as well as insulators., Comment: 9 Pages and 4 Figures

Published
2001

75. Efficient Recursion Method for Inverting Overlap Matrix

Author

Ozaki, T.

Subjects
Condensed Matter
Abstract

A new O(N) algorithm based on a recursion method, in which the computational effort is proportional to the number of atoms N, is presented for calculating the inverse of an overlap matrix which is needed in electronic structure calculations with the the non-orthogonal localized basis set. This efficient inverting method can be incorporated in several O(N) methods for diagonalization of a generalized secular equation. By studying convergence properties of the 1-norm of an error matrix for diamond and fcc Al, this method is compared to three other O(N) methods (the divide method, Taylor expansion method, and Hotelling's method) with regard to computational accuracy and efficiency within the density functional theory. The test calculations show that the new method is about one-hundred times faster than the divide method in computational time to achieve the same convergence for both diamond and fcc Al, while the Taylor expansion method and Hotelling's method suffer from numerical instabilities in most cases., Comment: 17 pages and 4 figures

Published
2001
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77. Block bond-order potential as a convergent moments-based method

Author

Ozaki, T., Aoki, M., and Pettifor, D. G.

Subjects
Condensed Matter - Materials Science
Abstract

The theory of a novel bond-order potential, which is based on the block Lanczos algorithm, is presented within an orthogonal tight-binding representation. The block scheme handles automatically the very different character of sigma and pi bonds by introducing block elements, which produces rapid convergence of the energies and forces within insulators, semiconductors, metals, and molecules. The method gives the first convergent results for vacancies in semiconductors using a moments-based method with a low number of moments. Our use of the Lanczos basis simplifies the calculations of the band energy and forces, which allows the application of the method to the molecular dynamics simulations of large systems. As an illustration of this convergent O(N) method we apply the block bond-order potential to the large scale simulation of the deformation of a carbon nanotube., Comment: revtex, 43 pages, 11 figures, submitted to Phys. Rev. B

Published
1999
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78. Patients with osteosarcoma and soft tissue sarcoma might become 'cancer refugees' in some Japanese regional cities

Author

Yamane H, Kunisada T, Ozaki T, Ochi N, Honda Y, Nagasaki Y, Nakagawa N, Yamagishi T, Nakanishi H, and Takigawa N

Subjects
Osteosarcoma, soft tissue sarcoma, rare cancer, cancer refugee, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
Abstract

Hiromichi Yamane,1 Toshiyuki Kunisada,2 Toshifumi Ozaki,2 Nobuaki Ochi,1 Yoshihiro Honda,1 Yasunari Nagasaki,1 Nozomu Nakagawa,1 Tomoko Yamagishi,1 Hidekazu Nakanishi,1 Nagio Takigawa1 1Department of General Internal Medicine 4, Kawasaki Medical School, Okayama, Japan; 2Department of Orthopedics, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan Purpose: “Rare cancer” is defined as malignancy with a disease prevalence (age-adjusted incidence rate) of less than six per 100,000 population. Proper treatments which these patients need cannot always be performed unless they find dedicated facilities. Patients tend to be desperate, searching for advice and care. Thus, they are called “cancer refugees”. Osteosarcoma and soft tissue sarcoma (OS/STS) are representative rare cancers in Japan. We conducted a retrospective analysis of patients with OS/STS to improve the current treatment modalities in a Japanese regional city. Patients and methods: Twenty-one patients with OS/STS who were hospitalized to receive standard chemotherapy or palliative treatment were enrolled between October 2011 and January 2017. Patients with non-Hodgkin’s lymphoma (NHL) and advanced cancer who were treated in the palliative care unit (PCU) of the Kawasaki Medical School General Medical Center were recruited as the control groups. We analyzed the difference in residential area between patients with OS/STS and the control groups. Results: Approximately one-third of patients with OS/STS were referred from hospitals outside of Okayama prefecture. The ratio of patients with OS/STS referred from Okayama city and/or the same medical administration area of Okayama prefecture was lower than that of patients with NHL and advanced cancer who were treated in the PCU. Conclusion: Because the medical environment of patients with OS/STS in Japanese local cities has not been consolidated, completing medical care within the patient’s own medical administration area is difficult. Thus, some patients with OS/STS may become “cancer refugees” who are unable to receive standard therapy near their residence. Keywords: osteosarcoma, soft tissue sarcoma, rare cancer, cancer refugee

Published
2018

79. Searching for universality of dineutron correlation at the surface of Borromean nuclei

Author

Corsi, A., primary, Kubota, Y., additional, Casal, J., additional, Gómez-Ramos, M., additional, Moro, A.M., additional, Authelet, G., additional, Baba, H., additional, Caesar, C., additional, Calvet, D., additional, Delbart, A., additional, Dozono, M., additional, Feng, J., additional, Flavigny, F., additional, Gheller, J.-M., additional, Gibelin, J., additional, Giganon, A., additional, Gillibert, A., additional, Hasegawa, K., additional, Isobe, T., additional, Kanaya, Y., additional, Kawakami, S., additional, Kim, D., additional, Kiyokawa, Y., additional, Kobayashi, M., additional, Kobayashi, N., additional, Kobayashi, T., additional, Kondo, Y., additional, Korkulu, Z., additional, Koyama, S., additional, Lapoux, V., additional, Maeda, Y., additional, Marqués, F.M., additional, Motobayashi, T., additional, Miyazaki, T., additional, Nakamura, T., additional, Nakatsuka, N., additional, Nishio, Y., additional, Obertelli, A., additional, Ohkura, A., additional, Orr, N.A., additional, Ota, S., additional, Otsu, H., additional, Ozaki, T., additional, Panin, V., additional, Paschalis, S., additional, Pollacco, E.C., additional, Reichert, S., additional, Rousse, J.-Y., additional, Saito, A.T., additional, Sakaguchi, S., additional, Sako, M., additional, Santamaria, C., additional, Sasano, M., additional, Sato, H., additional, Shikata, M., additional, Shimizu, Y., additional, Shindo, Y., additional, Stuhl, L., additional, Sumikama, T., additional, Sun, Y.L., additional, Tabata, M., additional, Togano, Y., additional, Tsubota, J., additional, Uesaka, T., additional, Yang, Z.H., additional, Yasuda, J., additional, Yoneda, K., additional, and Zenihiro, J., additional

Published
2023
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81. Intruder configurations in Ne at the transition into the island of inversion: Detailed structure study of Ne

Author

Wang, H., Yasuda, M., Kondo, Y., Nakamura, T., Tostevin, J.A., Ogata, K., Otsuka, T., Poves, A., Shimizu, N., Yoshida, K., Achouri, N.L., Al Falou, H., Atar, L., Aumann, T., Baba, H., Boretzky, K., Caesar, C., Calvet, D., Chae, H., Chiga, N., Corsi, A., Crawford, H.L., Delaunay, F., Delbart, A., Deshayes, Q., Dombrádi, Zs., Douma, C., Elekes, Z., Fallon, P., Gašparić, I., Gheller, J.M., Gibelin, J., Gillibert, A., Harakeh, M.N., Hirayama, A., Hoffman, C.R., Holl, M., Horvat, A., Horváth, Á., Hwang, J.W., Isobe, T., Kahlbow, J., Kalantar-Nayestanaki, N., Kawase, S., Kim, S., Kisamori, K., Kobayashi, T., Körper, D., Koyama, S., Kuti, I., Lapoux, V., Lindberg, S., Marqués, F.M., Masuoka, S., Mayer, J., Miki, K., Murakami, T., Najafi, M.A., Nakano, K., Nakatsuka, N., Nilsson, T., Obertelli, A., Orr, N.A., Otsu, H., Ozaki, T., Panin, V., Paschalis, S., Revel, A., Rossi, D., Saito, A.T., Saito, T., Sasano, M., Sato, H., Satou, Y., Scheit, H., Schindler, F., Schrock, P., Shikata, M., Shimizu, Y., Simon, H., Sohler, D., Sorlin, O., Stuhl, L., Takeuchi, S., Tanaka, M., Thoennessen, M., Törnqvist, H., Togano, Y., Tomai, T., Tscheuschner, J., Tsubota, J., Uesaka, T., Yang, Z., and Yoneda, K.

Abstract

Detailed γ-ray spectroscopy of the exotic neon isotope $^{28}$Ne has been performed for the first time using the one-neutron removal reaction from $^{29}$Ne on a liquid hydrogen target at 240 MeV/nucleon. Based on an analysis of parallel momentum distributions, a level scheme with spin-parity assignments has been constructed for $^{28}$Ne and the negative-parity states are identified for the first time. The measured partial cross sections and momentum distributions reveal a significant intruder p-wave strength providing evidence of the breakdown of the N=20 and N=28 shell gaps. Only a weak, possible f-wave strength was observed to bound final states. Large-scale shell-model calculations with different effective interactions do not reproduce the large p-wave and small f-wave strength observed experimentally, indicating an ongoing challenge for a complete theoretical description of the transition into the island of inversion along the Ne isotopic chain.

Published
2023

82. Strong-field optoelectronics in solids

Author

Vampa, G., Hammond, T. J., Taucer, M., Ding, Xiaoyan, Ropagnol, X., Ozaki, T., Delprat, S., Chaker, M., Thiré, N., Schmidt, B. E., Légaré, F., Klug, D. D., Naumov, A. Yu., Villeneuve, D. M., Staudte, A., and Corkum, P. B.

Published
2018
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83. Hot electron and ion spectra on blow-off plasma free target in GXII-LFEX direct fast ignition experiment

Author

Ozaki, T., primary, Abe, Y., additional, Arikawa, Y., additional, Sentoku, Y., additional, Kawanaka, J., additional, Tokita, S., additional, Miyanaga, N., additional, Jitsuno, T., additional, Nakata, Y., additional, Tsubakimoto, K., additional, Sunahara, A., additional, Jhozaki, T., additional, Miura, E., additional, Komeda, O., additional, Iwamoto, A., additional, Sakagami, H., additional, Okihara, S., additional, Ishii, K., additional, Hanayama, R., additional, Mori, Y., additional, and Kitagawa, Y., additional

Published
2023
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86. Enhancement of element production by incomplete fusion reaction with weakly bound deuteron

Author

Wang, H., Otsu, H., Chiga, N., Kawase, S., Takeuchi, S., Sumikama, T., Koyama, S., Sakurai, H., Watanabe, Y., Nakayama, S., Ahn, D. S., Baba, H., Chen, S. D., Chikaato, K., Cortés, M. L., Fukuda, N., Hirayama, A., Hosoda, R., Isobe, T., Kawakami, S., Kondo, Y., Kubono, S., Maeda, Y., Masuoka, S., Michimasa, S., Murray, I., Nakajima, R., Nakamura, T., Nakano, K., Nishimura, M., Ozaki, T., Saito, A., Saito, T., Sato, H., Shimizu, Y., Shimoura, S., Söderström, P. -A., Soudo, Y., Sun, X. H., Suwa, J., Suzuki, D., Suzuki, H., Takeda, H., Takechi, M., Togano, Y., Tomai, T., Yamada, H., Yasuda, M., and Yoshida, K.

Published
2019
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92. 1015P Phase III study of ramucirumab plus docetaxel versus atezolizumab for PD-L1 negative or weakly positive advanced non-small cell lung cancer after disease progression on platinum-based therapy: WJOG10317L study (EMERALD)

Author

Zenke, Y., primary, Niho, S., additional, Nakamura, A., additional, Okamoto, T., additional, Hara, S., additional, Akazawa, Y., additional, Hosomi, Y., additional, Hayashi, H., additional, Teraoka, S., additional, Yokoyama, T., additional, Ozaki, T., additional, Ueno, K., additional, Gyotoku, H., additional, Misumi, T., additional, Nakagawa, K., additional, Yamamoto, N., additional, and Tsuboi, M., additional

Published
2022
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93. 1482O A phase III study comparing methotrexate (M), adriamycin (A) and cisplatin (P) with MAP + ifosfamide (MAP + IF) for the treatment of osteosarcoma: JCOG0905

Author

Hiraga, H., primary, Machida, R., additional, Kawai, A., additional, Matsumoto, Y., additional, Yonemoto, T., additional, Nishida, Y., additional, Nagano, A., additional, Ae, K., additional, Yoshida, S., additional, Asanuma, K., additional, Toguchida, J., additional, Huruta, D., additional, Nakayama, R., additional, Akisue, T., additional, Hiruma, T., additional, Morii, T., additional, Tanaka, K., additional, Kataoka, T., additional, Fukuda, H., additional, and Ozaki, T., additional

Published
2022
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94. EP16.02-005 Liquid Biopsy Detects Genomic Drivers in Non-small Cell Lung Cancer without EGFR Mutations by Single-plex Testing: WJOG13620L

Author

Hazama, D., primary, Uemura, T., additional, Kenmotsu, H., additional, Meano, K., additional, Wakuda, K., additional, Teraoka, S., additional, Kobe, H., additional, Azuma, K., additional, Yamaguchi, T., additional, Masuda, T., additional, Yokoyama, T., additional, Otsubo, K., additional, Haratani, K., additional, Hayakawa, D., additional, Oki, M., additional, Takemoto, S., additional, Ozaki, T., additional, Okabe, T., additional, Hata, A., additional, Hashimoto, H., additional, Yamamoto, N., additional, and Nakagawa, K., additional

Published
2022
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