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Your search keyword '"Kimio Niwa"' showing total 8 results
Start Over Author "Kimio Niwa" Publisher oxford university press (oup)
8 results on '"Kimio Niwa"'

1. First demonstration of gamma-ray imaging using a balloon-borne emulsion telescope

Author

Motoaki Miyanishi, Atsumu Suzuki, Hiroki Rokujo, Shigeki Aoki, Tatsuki Inoue, F. Mizutani, Masahiro Komatsu, Shuichi Tawa, Koichi Kodama, Hiroaki Kawahara, Ryosuke Komatani, Katsumi Ishiguro, Mitsuhiro Nakamura, Naotaka Naganawa, Toshiyuki Nakano, Misaki Morishita, E. Shibayama, Akira Nishio, Kunihiro Morishima, Satoru Takahashi, K. Hamada, K. Ozaki, Naoto Otsuka, Atsushi Iyono, Kimio Niwa, Misato Yabu, Osamu Sato, Yurie Tateishi, M. Yoshimoto, Kyohei Yamada, T. Hara, Tetsuya Kosaka, Ryo Tanaka, and Saya Yamamoto

Subjects
Physics, 010308 nuclear & particles physics, business.industry, Gamma ray, General Physics and Astronomy, Balloon, 01 natural sciences, law.invention, Telescope, Optics, law, 0103 physical sciences, Emulsion, business, 010303 astronomy & astrophysics
Published
2018

2. GRAINE 2015, a balloon-borne emulsion $\gamma$-ray telescope experiment in Australia

Author

Satoru Takahashi, Hiroki Rokujo, Ryosuke Komatani, Mitsuhiro Nakamura, E. Shibayama, Motoaki Miyanishi, Tatsuki Inoue, Shuichi Tawa, Koichi Kodama, Kyohei Yamada, Tetsuya Kosaka, Atsushi Iyono, T. Hara, Naotaka Naganawa, F. Mizutani, Misaki Morishita, M. Yoshimoto, Osamu Sato, Ryo Tanaka, K. Ozaki, Yurie Tateishi, Saya Yamamoto, Hiroaki Kawahara, Masahiro Komatsu, Naoto Otsuka, Atsumu Suzuki, Kimio Niwa, Katsumi Ishiguro, Akira Nishio, K. Hamada, Misato Yabu, Shigeki Aoki, Toshiyuki Nakano, and Kunihiro Morishima

Subjects
Physics, 010308 nuclear & particles physics, 0103 physical sciences, Emulsion, General Physics and Astronomy, Astronomy, Astrophysics, Balloon, 010303 astronomy & astrophysics, 01 natural sciences, Fermi Gamma-ray Space Telescope
Abstract

著者人数: 34名, Accepted: 2016-05-22, 資料番号: SA1160185000

Published
2016

3. Production of Two Single- Hypernuclei by - Capture

Author

T. Hara, H. M. Shimizu, J. Y. Kim, K. Hoshino, C.H. Hahn, I. Tezuka, M. Nakamura, M. Teranaka, T. Iijima, D. C. Kim, Kimio Niwa, Saewoong Bahk, Ryuichi Takashima, Takashi Watanabe, K. Kikuchi, N. Yasuda, S. H. Chung, K. S. Chung, N. Ushida, A. Masuoka, Koichi Kodama, F. Takeutchi, J. Yokota, C. O. Kim, Kazuma Nakazawa, Yoshihiro Sato, H. Oda, H. Okabe, H. Togawa, Masaharu Ieiri, T. Jin-ya, M. Sugimoto, J. S. Song, Yoshitaka Itow, Takashi Z. Nakano, H. Funahashi, Kenichi Imai, H. Tajima, Akira Masaike, Kazuhiro Tanaka, Yasuyuki Matsuda, Y. Maeda, S. Nakanishi, S. Hirata, I. G. Park, R. Ozaki, M. S. Park, C. Nagoshi, M. Tairadate, M. Kazuno, C. S. Yoon, H. Shibuya, S. Ono, and Shigeki Aoki

Subjects
Physics, Nuclear physics, Stars, medicine.anatomical_structure, Physics and Astronomy (miscellaneous), medicine, Hyperon, Proton Synchrotron, Nuclear emulsion, Atomic physics, Absorption (chemistry), Nucleus, Beam (structure)
Abstract

The S= −2 hypernuclear states formed through (K − , K + ) reactions have been studied by using the 1.66 GeV/c K − beam provided by KEK Proton Synchrotron. Investigation has been done on the stars due to the capture of the ξ − hyperons at rest in nuclear emulsion, which hyperons were produced in (K − , K + ) reactions. We observed a clear case of an absorption of ξ − hyperon at rest by a nucleus followed by a back-to-back emission of two single-Λ hypernuclei

Published
1993

4. Observation of the Muonic Decay, Ds -> : WA75 Collaboration

Author

M. J. Esten, M. Kazuno, Y. Maeda, G. Baroni, G. Rosa, H. Tajima, A. Marzari-Chiesa, H. Shibuya, I. Tezuka, Yoshihiro Sato, M. G. Catanesi, A.C. Breslin, V. Bisi, Shigeki Aoki, S. Di Liberto, M. T. Muciaccia, C. Gerke, Kimio Niwa, L. Ramello, N. Ushida, Gilbert Poulard, C. Sgarbi, Makoto Kobayashi, K. Niu, M. A. Mazzoni, Y. Yanagisawa, Shigeki Tasaka, Sartori M, G. Romano, D.N. Tovee, D.H. Davis, K. Chiba, M. Nakamura, E. Radicioni, K. Kodama, K. Hoshino, S. Simone, Franco Meddi, F. Minakawa, H. Sasaki, Kazuma Nakazawa, F. Ruggieri, and Motoaki Miyanishi

Subjects
Physics, Massless particle, Particle physics, Particle decay, Muon, Physics and Astronomy (miscellaneous), Meson, Branching fraction, Elementary particle, Fermion, Lepton
Published
1993

5. Charm Production by 350 GeV/c - Interactions in Nuclear Emulsion

Author

H. Tajima, A. Marzari-Chiesa, Kazuma Nakazawa, M. Nakamura, K. Hoshino, Y. Maeda, M. A. Mazzoni, F. Minakawa, G. Baroni, C. Sgarbi, Shigeki Tasaka, H. Sletten, Gilbert Poulard, M. G. Catanesi, Makoto Kobayashi, R. Arnold, V. Bisi, K. Niu, S. Simone, L. Ramello, E. Radicioni, M. De Vincenzi, G. Rosa, Sartori M, G. Martellotti, H. Sasaki, M. Kazuno, G. Romano, Y. Yanagisawa, D.H. Davis, Yoshihiro Sato, M. T. Muciaccia, M. J. Esten, N. Ushida, D.N. Tovee, Gianni Penso, Franco Meddi, Motoaki Miyanishi, S. Natali, Shigeki Aoki, H. Shibuya, S. Di Liberto, Kimio Niwa, K. Chiba, K. Kodama, I. Tezuka, and A.C. Breslin

Subjects
Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Meson, Hadron, Elementary particle, Nuclear physics, Pion, High Energy Physics::Experiment, Nuclear emulsion, Charm (quantum number), Nuclear Experiment, Nucleon
Abstract

Results are presented on the production cross-section of charmed particles obtained from the WA75 emulsion hybrid experiment. The events, selected by the presence of a muon with a high momentum transverse to the beam direction, were located and analysed in nuclear emulsions. A Monte Carlo simulation allowed the computation of acceptances due to both apparatus and selection, as well as scanning and finding efficiencies. The ccBAR hadroproduction cross-section has been determined over the entire X(F) region as sigma(ccBAR)=23.1+/-1.3(stat)+4.0/-3.3(syst) mu-b per nucleon assuming an A0.87 dependence.

Published
1992

6. Hadroproduction of DD Pairs in the Interaction of 350 GeV/c - Meson with Nuclei

Author

R. Arnold, L. Ramello, H. Sasaki, K. Hoshino, K. Chiba, Shigeki Tasaka, N. Ushida, Makoto Kobayashi, G. Martellotti, Sartori M, G. Romano, K. Kodama, Y. Maeda, H. Tajima, D.N. Tovee, G. Rosa, A. Marzari-Chiesa, A.C. Breslin, S. Di Liberto, M. A. Mazzoni, Gianni Penso, M. Nakamura, D.H. Davis, V. Bisi, I. Tezuka, M. G. Catanesi, Kimio Niwa, Shigeki Aoki, Motoaki Miyanishi, H. Shibuya, M. J. Esten, S. Natali, S. Simone, E. Radicioni, F. Minakawa, M. De Vincenzi, H. Sletten, Kazuma Nakazawa, G. Baroni, Gilbert Poulard, K. Niu, M. Kazuno, Y. Yanagisawa, Franco Meddi, Yoshihiro Sato, M. T. Muciaccia, and C. Sgarbi

Subjects
Quantum chromodynamics, Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Meson, High Energy Physics::Phenomenology, Hadron, Elementary particle, Momentum, Nuclear physics, Pion, High Energy Physics::Experiment, Nuclear Experiment, Boson
Abstract

Results are presented on the production characteristics of charmed particles obtained from the WA75 emulsion hybrid experiment. The events, selected by the presence of a muon with a high momentum transverse to the beam direction, were located and analysed in nuclear emulsions. Inclusive and correlation properties are systematically compared with the lowest-order QCD calculations for DDBAR hadroproduction. Results concerning the correlation properties indicate some contribution from next-to-leading order [O(alpha(s)3] subprocesses.

Published
1992

7. Evidence of Weak Decay of Heavy Double Hypernuclei

Author

Y. Maeda, K. Hoshino, Yoshihiro Sato, S. Hirata, I. G. Park, Kimio Niwa, H. Okabe, M. Nakamura, N. Ushida, I. Tezuka, Yasuyuki Matsuda, H. Tajima, H. Oda, C. O. Kim, C.H. Hahn, S. H. Chung, H. Shibuya, T. Ishigami, S. Watanabe, T. Iijima, C. Nagoshi, R. Takashima, J. Y. Kim, R. Ozaki, Takashi Watanabe, Shigeki Aoki, M. Kobayashi, H. M. Shimizu, A. Masuoka, Akira Masaike, S. Nakanishi, K. S. Chung, C. S. Yoon, T. Hara, D. C. Kim, H. Funahashi, M. Teranaka, M. Sugimoto, S. Ono, M. Kazuno, Saewoong Bahk, F. Takeutchi, K. Kikuchi, Koichi Kodama, Kazuhiro Tanaka, H. Togawa, Kenichi Imai, J. Yokota, Masaharu Ieiri, Kazuma Nakazawa, J. S. Song, Yoshitaka Itow, and Takashi Z. Nakano

Subjects
Nuclear physics, Physics, Particle physics, Physics and Astronomy (miscellaneous), Energy spectrum
Published
1991

8. X-Particle Production in 205 GeV/c Proton Interactions

Author

Eiko Mikumo, Shigeki Tasaka, S. Kuramata, Y. Maeda, Kiyoshi Niu, Kimio Niwa, K. Hoshino, and N. Ushida

Subjects
Nuclear physics, Physics, Particle physics, Physics and Astronomy (miscellaneous), Proton, Particle
Published
1975

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