Zobrazeno 1 - 10
of 235
pro vyhledávání: '"H. Akikawa"'
Autor:
K. Shoji, Hirotaka Takahashi, Y. Fukao, Hiroyuki Okada, Hirohiko Sato, Se-Yeon Kim, B. H. Choi, Norio Saito, K. Aoki, T. Hibi, B. D. Park, Tadamitsu Kishimoto, J. S. Song, M. Kurosawa, M. Hayata, K. Imai, T. Hayakawa, J. Asai, S. J. Kim, C. S. Yoon, Tomoko Yoshida, Masaharu Ieiri, Yuji Shimizu, Akira Sato, H. Funahashi, Kiyoshi Tanida, Kaoru Taketani, Akira Ohnishi, K. Miwa, H. Akikawa, I. G. Park, Kazuhiko Yamamoto, C. J. Yoon, J. K. Ahn, Kazuma Nakazawa
Publikováno v:
Journal of the Korean Physical Society. 59:1003-1006
We determined scattering length and effective range of ¥E¥E scattering for the ¥E¥E relative energy (M¥E¥E-2M¥E) from ¥E¥E threshold to 30 MeV/c2. Phase shift of the ¥E¥E wave function which described by scattering length and effective ran
Autor:
M. Hayata, C. J. Yoon, K. Tanida, Akira Ohnishi, K. Shoji, Kaoru Taketani, T. Hibi, T. Hayakawa, Tomoko Yoshida, Koji Yamamoto, J. S. Song, Kazuma Nakazawa, Hiroyuki Okada, S. J. Kim, K. Aoki, B. D. Park, Tadamitsu Kishimoto, B. H. Choi, H. Akikawa, Hirotaka Takahashi, M. Kurosawa, Hirohiko Sato, Yuji Shimizu, K. Miwa, J. Asai, Norio Saito, C. S. Yoon, Jung Keun Ahn, S. H. Kim, Masaharu Ieiri, I. G. Park, K. Imai, Yoichiro Fukao, Akira Sato, H. Funahashi
Publikováno v:
International Journal of Modern Physics E. 19:2448-2453
We determine ΛΛ scattering parameters from a ΛΛ invariant mass spectrum that was obtained by 12 C (K-, K+ΛΛ) reaction at the KEK Proton Synchrotron. In the framework of Watson's procedure, the obtained scattering length [Formula: see text] and
Autor:
Osamu Hashimoto, David E. Alburger, S. H. Zhou, Y. Miura, H. Hotchi, Y. Okayasu, R. J. Sutter, L. Yuan, Adam Rusek, P. Pile, H. Akikawa, K. Tanida, Hiroyuki Tamura, J. Franz, S. Ajimura, Tomofumi Nagae, Morgan May, L. G. Tang, D. J. Millener, T. Hayakawa, Tadamitsu Kishimoto, Mifuyu Ukai, R. E. Chrien, G. B. Franklin, B. P. Quinn, Hirotaka Takahashi, K. Mizunuma, Satoshi Nakamura, Toshinobu Miyoshi, Shigeo Minami, Yoichi Sato, K. Imai, A. Banu, Kazuma Nakazawa
Publikováno v:
The European Physical Journal A. 33:247-250
We have observed three λ-ray transitions in Λ 16 O from both 7MeV excited spin-flip and non-spin-flip partners (2−, 1 2 − ) to the ground-state doublet (1 1 − , 0−) via the 16O(K −, π−) reaction. The 7MeV excitation energies of the spi
Autor:
Kenichi Imai, S. Torikai, N. Yasuda, M. Yosoi, Hiroyuki Noumi, H. Hayata, S. Ogawa, D.H. Davis, T. Kouketsu, J. Y. Kim, I. G. Park, H. Tanaka, Y. L. Lee, K. Tanida, Y. S. Iwata, Takayoshi Kawai, C. Nagoshi, Michiko Sekimoto, K. M. Baik, Y. Kakita, K. S. Sim, H. Okabe, M. Kaneko, Koji Yamamoto, Adam Rusek, C. O. Kim, Kazuma Nakazawa, B. Bassalleck, J. H. Chung, Shigeki Aoki, Y. S. Ra, Saewoong Bahk, Masaharu Ieiri, M. Mitsuhara, J. S. Song, Tomokazu Fukuda, H. Akikawa, L. H. Zhu, J. K. Ahn, M. S. Chung, D. Seki, T. Tsunemi, M. Kawasaki, J. W C McNabb, Y. Kondo, K. Hoshino, Toshiyuki Takahashi, H. Kanda, J. T. Yang, K. Oyama, Hirotaka Takahashi, J. T. Rhee, P.K. Saha, Junji Tojo, Y. Nagase, S. J. Kim, H. M. Park, N. Ushida, H. Torii, K. Arai, Y. H. Iwata, H. Shibuya, A. K. Ichikawa, J. Parker, C. S. Yoon, Tomoko Yoshida, Fujio Takeutchi, Seok Kim, T. Watanabe, C.J. Yoon, D.N. Tovee
Publikováno v:
The European Physical Journal A. 33:265-268
An event emitting a Σ- -hyperon from a Ξ- -hyperon nuclear capture at rest has been observed in a hybrid-emulsion experiment. The event has been analyzed as the first observation of the weak decay of the S = - 2 system.
Autor:
K. S. Sim, J. M. Lee, Masaharu Ieiri, A. M. Gorin, T. Hayakawa, K. Imai, H. Funahashi, H. Kanda, Yongsun Kim, M. Hanabata, Kazunuki Yamamoto, M. S. Chung, K. Nakai, T. Tabaru, S. V. Golovkin, Akira Masaike, Y. Goto, K. Ozawa, Tsuneo Fukuda, A. Sato, Masaya Ishino, J. Arvieux, Fujio Takeutchi, A. K. Ichikawa, Hirohiko Sato, H. En'yo, P. Tlustý, H. Akikawa, H. Torii, J. K. Ahn, S. Yokkaichi, E.N. Kozarenko, Kazuma Nakazawa, Minoru Yoshida, B. Bassalleck, I. E. Kreslo, Y. Kondo, Satoshi Mihara
Publikováno v:
Nuclear Physics A. 761:41-66
A hyperon–nucleon scattering experiment, KEK-PS E289, was carried out at the K2 beam line in KEK. We adopted a scintillating fiber active target as a hydrogen target for hyperon production and subsequent hyperon–nucleon scattering. We collected m
Autor:
S. Ota, K. Tanida, Hirokazu Tamura, M. Togawa, Y. Fukao, Seiji Terashima, M. Niiyama, Emiko Hiyama, K. Mizunuma, K. Miwa, H. Takahashi, Mifuyu Ukai, Y. Miura, Pranab Kumar Saha, K. Imai, H. Hotchi, Toshiyuki Takahashi, H. Akikawa, Satoshi Nakamura
Publikováno v:
Nuclear Physics A. 754:80-85
We performed an experiment to measure γ rays of hyperfragments produced by stopped K − reactions on light ( A ⩽ 12 ) targets (KEK-PS E509). We clearly observed an E2 transition ( 5 / 2 + → 1 / 2 + ) in 7ΛLi with 10B, 11B and 12C targets and o
Autor:
H. Tamura, S. Ajimura, H. Akikawa, D.E. Alburger, K. Aoki, A. Banu, R.E. Chrien, G.B. Franklin, J. Franz, Y. Fujii, Y. Fukao, T. Fukuda, O. Hashimoto, T. Hayakawa, E. Hiyama, H. Hotchi, K. Imai, W. Imoto, Y. Kakiguchi, M. Kameoka, T. Kishimoto, A. Krutenkova, T. Maruta, A. Matsumura, M. May, S. Minami, Y. Miura, K. Miwa, T. Miyoshi, K. Mizunuma, T. Nagae, S.N. Nakamura, K. Nakazawa, M. Niiyama, H. Nomura, H. Noumi, Y. Okayasu, S. Ota, T. Ohtaki, H. Outa, P. Pile, B.P. Quinn, A. Rusek, P.K. Saha, Y. Sato, T. Saitoh, M. Sekimoto, R. Sutter, H. Takahashi, T. Takahashi, L. Tang, K. Tanida, S. Terashima, M. Togawa, A. Toyoda, M. Ukai, H. Yamauchi, L. Yuan, S.H. Zhou
Publikováno v:
Nuclear Physics A. 754:58-69
The present status of hypernuclear gamma-ray spectroscopy with Hyperball is summarized. We observed two gamma transitions of 16-Lambda-O(1- -> 1-,0-) and obtained the strength of the Lambda-N tensor force. In 10B(K-,pi- gamma) data, we did not observ
Autor:
David E. Alburger, J. Franz, K. Tanida, Osamu Hashimoto, Toshinobu Miyoshi, Shigeo Minami, S. Ajimura, Yoichi Sato, Morgan May, S.N. Nakamura, K. Mizunuma, Hitoshi Tamura, H. Akikawa, Hirotaka Takahashi, R. J. Sutter, P. Pile, Mifuyu Ukai, Tomofumi Nagae, K. Imai, Y. Miura, G. B. Franklin, L. Yuan, Adam Rusek, Kazuma Nakazawa, T. Hayakawa, Y. Okayasu, B. P. Quinn, A. Banu, R. E. Chrien, Hideaki Hotchi, L. G. Tang, T. Kishimoto
Publikováno v:
Nuclear Physics A. 754:70-74
We observed two γ-ray transitions of 16ΛO in the 16O( K − , π − γ ) reaction using a germanium detector array, Hyperball. The γ rays are assigned as the M1 transitions from the 6 MeV excited state ( 1 − ) to the ground state doublet ( 1
Autor:
J. H. Kim, S. H. Zhou, D. Abe, T. Endo, Yukinori Sato, L. H. Zhu, H. H. Xia, Y. Fujii, Y. Kakiguchi, T. Takahashi, Y. D. Kim, H. C. Bhang, T. Murakami, Toshinobu Miyoshi, Tomofumi Nagae, H. Hotchi, S. Satoh, Michiko Sekimoto, Haruhiko Outa, Tomokazu Fukuda, H. Akikawa, K. Ozawa, Hiroyuki Noumi, L. G. Tang, R. Sawafta, K. Araki, Hiroyuki Tamura, K. Imai, Osamu Hashimoto, T. Saito, J. Sasao, K. Tanida
Publikováno v:
Physics Letters B. 579(3-4):258-264
Using a large-acceptance germanium detector array (Hyperball), we measured a γ -ray spectrum in coincidence with production of 7 Λ Li bound states in the 7 Li( π + , K + ) reaction. We observed a γ -ray peak at 429 keV due to the transition from
Autor:
H. Takahashi, J.K. Ahn, H. Akikawa, S. Aoki, K. Arai, S.Y. Bahk, K.M. Baik, B. Bassalleck, J.H. Chung, M.S. Chung, D.H. Davis, T. Fukuda, K. Hoshino, A. Ichikawa, M. Ieiri, K. Imai, Y.H. Iwata, Y.S. Iwata, H. Kanda, M. Kaneko, T. Kawai, M. Kawasaki, C.O. Kim, J.Y. Kim, S.H. Kim, Y. Kondo, T. Kouketsu, C. Nagoshi, K. Nakazawa, H. Noumi, S. Ogawa, H. Okabe, M. Okuda, K. Oyama, B.D. Park, H.M. Park, I.G. Park, J. Parker, Y.S. Ra, J.T. Rhee, A. Rusek, H. Shibuya, K.S. Sim, P.K. Saha, D. Seki, M. Sekimoto, J.S. Song, T. Takahashi, F. Takeutchi, H. Tanaka, K. Tanida, J. Tojo, H. Torii, S. Torikai, D.N. Tovee, N. Ushida, T. Wint, K. Yamamoto, N. Yasuda, J.T. Yang, C.J. Yoon, C.S. Yoon, M. Yosoi, T. Yoshida, L. Zhu
Publikováno v:
Nuclear Physics A. 721:C951-C954
A hybrid-emulsion experiment has been carried out at KEK-PS to study S = −2 nuclei. With the analysis of about 35% of total emulsion, we have successfully found three events of sequential weak decay of a double-hypernucleus. The results of these E3