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6 results on '"W. Gajewski"'

1. Measurement of atmospheric neutrino oscillation parameters by Super-Kamiokande I

Author

G. Guillian, C. Yanagisawa, M. Goldhaber, A. K. Ichikawa, K. Kaneyuki, A. Minamino, Y. Watanabe, S. Mine, D. W. Liu, Atsumu Suzuki, S. Matsuno, E. Kearns, T. Toshito, Hirokazu Ishino, M. Ishitsuka, Y. Totsuka, A. Suzuki, C. W. Walter, Ko Okumura, R. Svoboda, D. Turcan, Shantanu Desai, Y. Nakajima, K. Ishihara, J. P. Cravens, Y. Ashie, C. McGrew, S. Clark, R. J. Wilkes, Tsuyoshi Nakaya, Kunio Inoue, Y. Hayato, K. Taki, T. Sasaki, C. Saji, J. Yoo, A. L. Stachyra, K. Nishikawa, I. T. Lim, Masato Shiozawa, A. Kibayashi, K. S. Ganezer, J. Kameda, Shoji Yamamoto, T. Kato, N. Tamura, L. R. Sulak, C. W. Sterner, E. Blaufuss, J. Shirai, Y. Fukuda, Magdalena Malek, J. L. Stone, E. Sharkey, S. Dazeley, Yoshitaka Itow, Takashi Kobayashi, K. Hayashi, Y. Gando, Yusuke Koshio, Koji Nakamura, Y. Takeuchi, K. Washburn, Mark R. Vagins, John G. Learned, T. Iwashita, H. Okazawa, S. Ueda, T. Maruyama, S. Likhoded, Shinya Yamada, R. Nambu, W. Wang, S. Hatakeyama, Y. Kuno, R. Gran, Kazumasa Miyano, Henry W. Sobel, K. Nitta, Michael B. Smy, H. Seo, Takehisa Hasegawa, Kyoshi Nishijima, J. A. Goodman, Alec Habig, W. R. Kropp, G. W. Sullivan, John Hill, C. K. Jung, D. Kielczewska, Shigetaka Moriyama, J. S. Jang, D. Takemori, Yuichi Oyama, I. Kato, Shoei Nakayama, Katsuhiro Kobayashi, Minoru Yoshida, Y. Obayashi, T. Harada, S. Tasaka, W. E. Keig, T. Ishii, W. Gajewski, Kate Scholberg, S. B. Kim, David William Casper, Masayuki Nakahata, C. Mitsuda, J. Hosaka, Y. Takenaga, Masaya Hasegawa, M. Miura, K. K. Shiraishi, Yoshihiro Suzuki, Masatoshi Koshiba, J. Ishii, J. Zalipska, T. Ishida, Makoto Sakuda, A. Sarrat, Todd Haines, M. D. Messier, C. Mauger, A. Okada, H. G. Berns, T. Ishizuka, Taichi Morita, R. W. Ellsworth, Takaaki Kajita, Y. Choi, J. Y. Kim, Toshio Namba, and H. Maesaka

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, High Energy Physics::Phenomenology, Monte Carlo method, High Energy Physics - Experiment, Nuclear physics, Neutrino detector, High Energy Physics::Experiment, Neutrino, Neutrino oscillation, Super-Kamiokande, Charged current, Energy (signal processing)
Abstract

We present a combined analysis of fully-contained, partially-contained and upward-going muon atmospheric neutrino data from a 1489 day exposure of the Super--Kamiokande detector. The data samples span roughly five decades in neutrino energy, from 100 MeV to 10 TeV. A detailed Monte Carlo comparison is described and presented. The data is fit to the Monte Carlo expectation, and is found to be consistent with neutrino oscillations of $\nu_\mu \leftrightarrow \nu_\tau$ with $\sin^22\theta > 0.92$ and $1.5\times 10^{-3} < \Delta m^2 < 3.4\times 10^{-3}{\rm eV}^2$ at 90% confidence level., Comment: 32 pages, 44 figures. As accepted for publication in Physical Review D

Published
2005

2. Publisher's Note: Search for dark matter WIMPs using upward through-going muons in Super-Kamiokande [Phys. Rev. D70, 083523 (2004)]

Author

S. Desai, Y. Ashie, S. Fukuda, Y. Fukuda, K. Ishihara, Y. Itow, Y. Koshio, A. Minamino, M. Miura, S. Moriyama, M. Nakahata, T. Namba, R. Nambu, Y. Obayashi, N. Sakurai, M. Shiozawa, Y. Suzuki, H. Takeuchi, Y. Takeuchi, S. Yamada, M. Ishitsuka, T. Kajita, K. Kaneyuki, S. Nakayama, A. Okada, T. Ooyabu, C. Saji, M. Earl, E. Kearns, J. L. Stone, L. R. Sulak, C. W. Walter, W. Wang, M. Goldhaber, T. Barszczak, D. Casper, J. P. Cravens, W. Gajewski, W. R. Kropp, S. Mine, D. W. Liu, M. B. Smy, H. W. Sobel, C. W. Sterner, M. R. Vagins, K. S. Ganezer, J. Hill, W. E. Keig, J. Y. Kim, I. T. Lim, R. W. Ellsworth, S. Tasaka, G. Guillian, A. Kibayashi, J. G. Learned, S. Matsuno, D. Takemori, M. D. Messier, Y. Hayato, A. K. Ichikawa, T. Ishida, T. Ishii, T. Iwashita, J. Kameda, T. Kobayashi, T. Maruyama, K. Nakamura, K. Nitta, Y. Oyama, M. Sakuda, Y. Totsuka, A. T. Suzuki, M. Hasegawa, K. Hayashi, T. Inagaki, I. Kato, H. Maesaka, T. Morita, T. Nakaya, K. Nishikawa, T. Sasaki, S. Ueda, S. Yamamoto, T. J. Haines, S. Dazeley, S. Hatakeyama, R. Svoboda, E. Blaufuss, J. A. Goodman, G. W. Sullivan, D. Turcan, K. Scholberg, A. Habig, C. K. Jung, T. Kato, K. Kobayashi, M. Malek, C. Mauger, C. McGrew, A. Sarrat, E. Sharkey, C. Yanagisawa, T. Toshito, C. Mitsuda, K. Miyano, T. Shibata, Y. Kajiyama, Y. Nagashima, M. Takita, M. Yoshida, H. I. Kim, S. B. Kim, J. Yoo, H. Okazawa, T. Ishizuka, Y. Choi, H. K. Seo, Y. Gando, T. Hasegawa, K. Inoue, J. Shirai, A. Suzuki, M. Koshiba, T. Hashimoto, Y. Nakajima, K. Nishijima, T. Harada, H. Ishino, M. Morii, R. Nishimura, Y. Watanabe, D. Kielczewska, J. Zalipska, R. Gran, K. K. Shiraishi, K. Washburn, and R. J. Wilkes

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Weakly interacting massive particles, Dark matter, Cosmic ray, Elementary particle, Neutrino, Super-Kamiokande, Light dark matter, Particle identification
Published
2004

3. Search for periodic modulations of the solar neutrino flux in Super-Kamiokande-I

Author

J. Yoo, Y. Ashie, S. Fukuda, Y. Fukuda, K. Ishihara, Y. Itow, Y. Koshio, A. Minamino, M. Miura, S. Moriyama, M. Nakahata, T. Namba, R. Nambu, Y. Obayashi, N. Sakurai, M. Shiozawa, Y. Suzuki, H. Takeuchi, Y. Takeuchi, S. Yamada, M. Ishitsuka, T. Kajita, K. Kaneyuki, S. Nakayama, A. Okada, T. Ooyabu, C. Saji, S. Desai, M. Earl, E. Kearns, M. D. Messier, J. L. Stone, L. R. Sulak, C. W. Walter, M. Goldhaber, T. Barszczak, D. Casper, W. Gajewski, W. R. Kropp, S. Mine, D. W. Liu, M. B. Smy, H. W. Sobel, M. R. Vagins, A. Gago, K. S. Ganezer, J. Hill, W. E. Keig, J. Y. Kim, I. T. Lim, R. W. Ellsworth, S. Tasaka, A. Kibayashi, J. G. Learned, S. Matsuno, D. Takemori, Y. Hayato, A. K. Ichikawa, T. Ishii, J. Kameda, T. Kobayashi, T. Maruyama, K. Nakamura, K. Nitta, Y. Oyama, M. Sakuda, Y. Totsuka, M. Yoshida, M. Kohama, T. Iwashita, A. T. Suzuki, T. Inagaki, I. Kato, T. Nakaya, K. Nishikawa, T. J. Haines, S. Dazeley, S. Hatakeyama, R. Svoboda, E. Blaufuss, M. L. Chen, J. A. Goodman, G. Guillian, G. W. Sullivan, D. Turcan, K. Scholberg, A. Habig, M. Ackermann, C. K. Jung, T. Kato, K. Kobayashi, K. Martens, M. Malek, C. Mauger, C. McGrew, E. Sharkey, B. Viren, C. Yanagisawa, T. Toshito, C. Mitsuda, K. Miyano, T. Shibata, Y. Kajiyama, Y. Nagashima, M. Takita, H. I. Kim, S. B. Kim, H. Okazawa, T. Ishizuka, Y. Choi, H. K. Seo, M. Etoh, Y. Gando, T. Hasegawa, K. Inoue, J. Shirai, A. Suzuki, M. Koshiba, Y. Hatakeyama, Y. Ichikawa, M. Koike, K. Nishijima, H. Ishino, M. Morii, R. Nishimura, Y. Watanabe, D. Kielczewska, H. G. Berns, S. C. Boyd, A. L. Stachyra, and R. J. Wilkes

Subjects
Physics, Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, Solar neutrino, Detector, FOS: Physical sciences, Flux, Astrophysics, Solar neutrino problem, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Neutrino detector, Astrophysics::Solar and Stellar Astrophysics, Measurements of neutrino speed, High Energy Physics::Experiment, Super-Kamiokande, Neutrino oscillation
Abstract

A search for periodic modulations of the solar neutrino flux was performed using the Super-Kamiokande-I data taken from May 31st, 1996 to July 15th, 2001. The detector's capability of measuring the exact time of events, combined with a relatively high yield of solar neutrino events, allows a search for short-time variations in the observed flux. We employed the Lomb test to look for periodic modulations of the observed solar neutrino flux. The obtained periodogram is consistent with statistical fluctuation and no significant periodicity was found.

Published
2003

4. Search for proton decay intoe++π0in the IMB-3 detector

Author

R. Becker-Szendy, C. B. Bratton, D. R. Cady, D. Casper, R. Claus, M. Crouch, S. T. Dye, W. Gajewski, M. Goldhaber, T. J. Haines, P. G. Halverson, T. W. Jones, D. Kielczewska, W. R. Kropp, J. G. Learned, J. M. LoSecco, C. McGrew, S. Matsuno, J. Matthews, M. S. Mudah, L. Price, F. Reines, J. Schultz, D. Sinclair, H. W. Sobel, J. L. Stone, L. R. Sulak, R. Svoboda, G. Thornton, and J. C. van der Velde

Subjects
Physics, Nuclear physics, Particle physics, Antiparticle, Muon, Pion, Meson, Hadron, Elementary particle, Nucleon, Lepton
Abstract

We report the results of a search for proton decay into ${e}^{+}+{\ensuremath{\pi}}^{0}$ in the 6800-ton IMB-3 water \ifmmode \check{C}\else \v{C}\fi{}erenkov detector. During 376 days of live time no events consistent with this decay were found in the 3300 ton fiducial volume. From this observation we derive a limit on the partial lifetime to be $\frac{\ensuremath{\tau}}{B}g2.4\ifmmode\times\else\texttimes\fi{}{10}^{32}$ yr (90% C.L.), which, combined with our previous result of 3.1\ifmmode\times\else\texttimes\fi{}${10}^{32}$ yr, provides a limit of 5.5\ifmmode\times\else\texttimes\fi{}${10}^{32}$ yr. The general features of the observed contained events are compatible with those expected from atmospheric neutrino interactions.

Published
1990

5. Limits on the neutrino lifetime

Author

D. Kielczewska, Frederick Reines, Craig R. Wuest, John G. Learned, K. S. Ganezer, T. J. Haines, W. R. Kropp, Lawrence Sulak, E. Lehmann, H.-S. Park, David William Casper, J. Schultz, Geoffrey Blewitt, B. G. Cortez, S. Errede, C. B. Bratton, J. C. van der Velde, T. W. Jones, G. W. Foster, John M. LoSecco, J. L. Stone, H. W. Sobel, R. M. Bionta, E. Shumard, W. Gajewski, D. Sinclair, R. Svoboda, M. Goldhaber, R. Claus, and Sally Seidel

Subjects
Physics, Particle physics, Neutrino, Engineering physics
Published
1987

6. Electroproduction of pions on pions and the possibility of experimental investigation of theρπγvertex

Author

A. Jurewicz and W. Gajewski

Subjects
Physics, Particle physics, Meson, High Energy Physics::Lattice, Nuclear Theory, Hadron, Form factor (quantum field theory), Elementary particle, Inelastic scattering, Nuclear physics, Pion, Vertex (curve), High Energy Physics::Experiment, Nuclear Experiment, Boson
Abstract

Possibilities of experimental investigation of the reaction of electroproduction on pions are examined. For this purpose the absolute cross section of the reaction ..pi..e ..-->.. ..pi pi..e is calculated with the use of analytic properties of an inelastic pion form factor. It is shown that the discussed reaction can be a good source of information on the rho..pi gamma.. vertex. Pion beams from the doubler at Fermilab will have sufficient energy to allow for experimental studies of this reaction.

Published
1978

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