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Archive | 2000

High-Resolution Gamma-Spectroscopy of Λ 7 Li and Λ 9 Be

H. Tamura; D. Abe; S. Ajimura; H. Akikawa; K. Araki; H. Bhang; R. E. Chrien; T. Endo; P. Eugenio; G. B. Franklin; Y. Fujii; T. Fukuda; L. Gan; O. Hashimoto; H. Hotchi; K. Imai; Y. Kakiguchi; P. Khaustov; J. H. Kim; Y. D. Kim; H. Kohri; M. May; T. Miyoshi; T. Murakami; T. Nagae; J. Nakano; H. Noumi; H. Outa; K. Ozawa; P. Pile

We report on the first two experiments of hypernuclear γ-ray spectroscopy with Hyperball, a large-acceptance germanium detector system. In a KEK experiment, we observed two γ transitions in Λ 7 Li, the spin- flip M1(3/2+ → 1/2+) at 691.7 ± 0.6 stat ± 1.0 sys keV and the E2(5/2+ → 1/2+) at 2050.4 ± 0.4 stat ± 0.7 sys keV. The former gives unambiguous information on the strength of the ΛN spin-spin interaction. B(E2) of the latter transition was measured to be ( 3.6 pm {0.5^{stat}},_{ - 0.4}^{ + 0.5}{,^{sys}}{e^2}f{m^4} ). In the second experiment at BNL, we observed the E2(5/2+, 3/2+ → 1/2+) transitions of Λ 9 Be at around 3.05 MeV.


Physics Letters B | 2004

7ΛLi ground-state spin determined by the yield of γ-rays subsequent to weak decay

J. Sasao; D. Abe; H. Akikawa; K. Araki; H. Bhang; T. Endo; Y. Fujii; T. Fukuda; O. Hashimoto; K. Imai; H. Hotchi; Y. Kakiguchi; J. H. Kim; Y. D. Kim; T. Miyoshi; T. Murakami; T. Nagae; H. Noumi; H. Outa; K. Ozawa; T. Saito; S. Satoh; R. Sawafta; M. Sekimoto; T. Takahashi; H. Tamura; L. Tang; K. Tanida; H. H. Xia; S.H. Zhou


Nuclear Physics | 2001

High-resolution gamma-ray spectroscopy of hypernuclei with germanium detectors

K. Tanida; H. Tamura; D. Abe; S. Ajimura; H. Akikawa; K. Araki; H. Bhang; R. E. Chrien; P. Eugenio; G. B. Franklin; Y. Fujii; T. Fukuda; L. Gan; O. Hashimoto; H. Hotchi; K. Imai; Y. Kakiguchi; P. Khaustov; J. H. Kim; Y. D. Kim; H. Kohri; M. May; T. Miyoshi; T. Murakami; T. Nagae; J. Nakano; H. Noumi; K. Ozawa; H. Outa; P. Pile


Proceedings of the IEICE General Conference | 2016

C-2-79 RCS Reduction of Cylindrical Cavity Using Radar Absorber

Shinya Kitagawa; Ryosuke Suga; Osamu Hashimoto; K. Araki


C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition) | 2015

Microwave Absorption/Transmission Switchable Surface Using Diodes

Shinya Kitagawa; Ryosuke Suga; Osamu Hashimoto; K. Araki


Proceedings of the Conference “Bologna 2000: Structure of the Nucleus at the Dawn of the Century” | 2001

HYPERNUCLEAR γ SPECTROSCOPY: RECENT RESULTS WITH HYPERBALL

H. Tamura; D. Abe; S. Ajimura; H. Akikawa; K. Araki; H. Bhang; R. E. Chrien; T. Endo; P. Eugenio; G. B. Franklin; J. Franz; Y. Fujii; T. Fukuda; L. Gan; O. Hashimoto; H. Hotchi; K. Imai; Y. Kakiguchi; P. Khaustov; J. H. Kim; Y. D. Kim; H. Kohri; M. May; T. Miyoshi; T. Murakami; T. Nagae; J. Nakano; H. Noumi; H. Outa; K. Ozawa


Nuclear Physics | 2001

High-resolution γ-ray spectroscopy of 7ΛLi

K. Tanida; H. Tamura; D. Abe; H. Akikawa; K. Araki; H. Bhang; T. Endo; Y. Fujii; T. Fukuda; O. Hashimoto; K. Imai; H. Hotchi; Y. Kakiguchi; J.-H. Kim; Y. D. Kim; T. Miyoshi; T. Murakami; T. Nagae; H. Noumi; H. Outa; K. Ozawa; T. Saito; J. Sasao; S. Satoh; R. Sawafta; M. Sekimoto; T. Takahashi; L. Tang; H.H. Xia; S.H. Zhou


Proceedings of the RCNP-TMU Symposium | 2000

LAMBDA-N SPIN DEPENDENT INTERACTIONS STUDIED BY GAMMA-RAY SPECTROSCOPY OF HYPERNUCLEI

K. Tanida; H. Tamura; D. Abe; S. Ajimura; H. Akikawa; K. Araki; H. Bhang; R. E. Chrien; P. Eugenio; G. B. Franklin; Y. Fujii; T. Fukuda; L. Gan; O. Hashimoto; H. Hotchi; K. Imai; Y. Kakiguchi; P. Khaustov; J. H. Kim; Y. D. Kim; H. Kohri; M. May; T. Miyoshi; T. Murakami; T. Nagae; J. Nakano; H. Noumi; K. Ozawa; H. Outa; P. Pile


Nuclear Physics | 2000

High-resolution gamma-ray spectroscopy of ? 7Li

H. Tamura; K. Tanida; D. Abe; H. Akikawa; K. Araki; Hyoung Chan Bhang; T. Endo; Yoshiaki Fujii; T. Fukuda; O. Hashimoto; K. Imai; H. Hotchi; Y. Kakiguchi; Jung Han Kim; Yong Kim; T. Miyoshi; Toshio Murakami; T. Nagae; J. Nishida; H. Noumi; H. Outa; K. Ozawa; To. Saito; J. Sasao; Yoshinori Sato; S. Satoh; Reyad Sawafta; M. Sekimoto; Takashi Takahashi; Liguang Tang


Nuclear Physics | 2000

High-resolution hypernuclear gamma-ray spectroscopy

H. Tamura; D. Abe; S. Ajimura; H. Akikawa; K. Araki; Hyoung Chan Bhang; R. E. Chrien; T. Endo; P. Eugenio; G.B. Franklin; Y. Fujii; T. Fukuda; L. Gan; O. Hashimoto; H. Hotchi; K. Imai; Y. Kakiguchi; P. Khaustov; Jewan Kim; Y.D. Kim; H. Kohri; M. May; T. Miyoshi; T. Murakami; T. Nagae; J. Nakano; H. Noumi; H. Outa; K. Ozawa; P. Pile

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K. Imai

Japan Atomic Energy Agency

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T. Fukuda

Osaka Electro-Communication University

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