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NSR database version of April 11, 2024.

Search: Author = A.Osa

Found 89 matches.

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2015SU09      Phys.Rev. C 92, 024309 (2015)

M.Sugawara, T.Hayakawa, M.Oshima, Y.Toh, A.Osa, M.Matsuda, T.Shizuma, Y.Hatsukawa, H.Kusakari, T.Morikawa, Z.G.Gan, T.Czosnyka

Lifetime measurement for the possible antimagnetic rotation band in 101Pd

NUCLEAR REACTIONS 68Zn(37Cl, 3np), E=125 MeV; measured Eγ, Iγ, γγ-coin, level half-lives by Doppler broadened line shape method using GEMINI array at JAEA accelerator facility. 101Pd; deduced high-spin levels, B(E2) for transitions in νh11/2 band, moment of inertia plot, configuration, possible antimagnetic rotational band. Comparison with semiclassical particle-rotor model calculations, and with systematics of B(E2) values for bands in 100,102,104Pd, 106,108,110Cd.

doi: 10.1103/PhysRevC.92.024309
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2014HA38      Nucl.Instrum.Methods Phys.Res. A747, 41 (2014)

H.Hayashi, M.Shibata, M.Asai, A.Osa, T.K.Sato, M.Koizumi, A.Kimura, M.Oshima

Performance of a total absorption clover detector for Qβ measurements of neutron-rich nuclei far from the β-stability line

RADIOACTIVITY 160,161,162,163,164,165,166Eu, 163,165Gd(β-); measured decay products, Eβ, Iβ, Eγ, Iγ; deduced T1/2 and their uncertainties. Comparison with available data.

doi: 10.1016/j.nima.2014.02.012
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2014LI21      Phys.Rev. C 89, 054303 (2014)

G.S.Li, M.L.Liu, X.H.Zhou, Y.H.Zhang, Y.X.Liu, N.T.Zhang, W.Hua, Y.Zheng, Y.D.Fang, S.Guo, J.G.Wang, Y.H.Qiang, B.Ding, L.Ma, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa, M.Sugawara

In-beam γ spectroscopy of the even-even nucleus 190Pt

NUCLEAR REACTIONS 176Yb(18O, 4n), E=88 MeV; measured Eγ, Iγ, γγ-coin. γ(θ)(ADO ratio) using GEMINI array at JAEA facility. 190Pt; deduced high-spin levels, J, π, configurations, multipolarity, bands; calculated total Routhian surfaces (TRS). Systematics of Eγ-over spin (E-GOS) plots for 190,192,194Hg, 188,190,192Pt, 186,188,190Os, 184,186,188W. Comparison with level structures in 191Pt and 192Hg.

doi: 10.1103/PhysRevC.89.054303
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2013HE08      Phys.Rev. C 87, 034320 (2013), Erratum Phys.Rev. C 102, 029903 (2020)

C.He, S.Shen, S.Wen, L.Zhu, X.Wu, G.Li, Y.Zhao, Y.Yan, Z.Bai, Y.Wu, Y.Li, G.Li, S.Yan, M.Oshima, Y.Toh, A.Osa, M.Koizumi, Y.Hatsukawa, M.Matsuda, T.Hagakawa

Signature splitting inversion and backbending in 80Rb

NUCLEAR REACTIONS 65Cu(19F, 3np), E=75 MeV; 66Zn(18O, 3np), E=76 MeV; 68Zn(16O, 3np), E=80 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) at CIAE and JAERI facilities. 80Rb; deduced high-spin levels, J, π, bands, alignments, signature splitting and inversion. Comparison with structures of 78Rb and 82Y nuclei. Calculated total Routhian surface (TRS) plots. Projected shell-model calculations.

doi: 10.1103/PhysRevC.87.034320
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2013SU15      Phys.Rev. C 87, 064319 (2013)

M.Sugawara, T.Hayakawa, M.Oshima, Y.Toh, A.Osa, M.Matsuda, T.Shizuma, Y.Hatsukawa, H.Kusakari, T.Morikawa, Z.G.Gan, T.Czosnyka

Possible band termination in 99Rh

NUCLEAR REACTIONS 68Zn(37Cl, 2nα), E=125 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO) using GEMINI array at JAEA facility. 99Rh; deduced high-spin levels, J, π, bands, multipolarity, B(M1)/B(E2), configurations, alignments, E-GOS curves, possible band termination. 68Zn, 101,102Ag, 100,101,102Pd; observed prompt γ rays. Comparison with band structures of neighboring nuclides of 101,103Rh, 98,99,100Ru, 95,96,97Tc.

doi: 10.1103/PhysRevC.87.064319
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2012GU14      Phys.Rev. C 86, 014323 (2012)

S.Guo, Y.H.Zhang, X.H.Zhou, M.L.Liu, Y.X.Guo, Y.H.Qiang, Y.D.Fang, X.G.Lei, F.Ma, M.Oshima, Y.Toh, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, M.Sugawara, H.Kusakari

High-spin states in odd-odd 174Re

NUCLEAR REACTIONS 152Sm(27Al, 5n)174Re, E=125, 132, 140 MeV; measured Eγ, Iγ, excitation functions, branching ratios, γγ-, (x ray)γ-coin, DCO and ADO ratios; 174Re; deduced high-spin levels, rotational bands, J, π, moment of inertia plots, alignments, signature splittings, B(M1)/B(E2), configurations. Systematics of bandhead energies for Z=75 and N=99 isotopes of 171,173,175,177,179,181,183Re, 169Yb, 171Hf, 173W, 175Os, 177Pt. Systematics of alignments and signature splittings for bands in 172,173W, 173,174Re. Comparison with shell-model and band-mixing calculations.

doi: 10.1103/PhysRevC.86.014323
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2012HI03      Eur.Phys.J. A 48, 54 (2012)

Y.Hirayama, M.Mihara, Y.X.Watanabe, S.C.Jeong, H.Miyatake, S.Momota, T.Hashimoto, N.Imai, K.Matsuta, H.Ishiyama, S.Ichikawa, T.Ishii, T.Izumikawa, I.Katayama, H.Kawakami, H.Kawamura, I.Nishinaka, K.Nishio, H.Makii, S.Mitsuoka, A.Osa, Y.Otokawa, T.K.Sato

Tilted-foil technique for producing a spin-polarized radioactive isotope beam

doi: 10.1140/epja/i2012-12054-1
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2012LI08      Chin.Phys.Lett. 29, 022102 (2012)

S.-C.LI, Y.Shi, Y.-H.Zhang, X.-H.Zhou, F.-R.Xu, Y.-D.Fang, M.-L.Liu, B.Ding, S.Guo, G.-S.Li, H.-B.Zhou, M.Oshima, Y.Toh, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, H.Hayakawa, T.Shizuma, J.Katakura, M.Matsuda, T.Morikawa, M.Sugawara, H.Kusakari

Identification of a New Four-Quasiparticle State in Odd-Odd 186Au

NUCLEAR REACTIONS 172Yb(19F, 5nγ)186Au, E=104 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced high-spin structure, level energies, J, π, isomeric states. Comparison with systematics, cranked shell model and total Routhian calculations.

doi: 10.1088/0256-307X/29/2/022102
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2012SU18      Phys.Rev. C 86, 034326 (2012)

M.Sugawara, T.Hayakawa, M.Oshima, Y.Toh, A.Osa, M.Matsuda, T.Shizuma, Y.Hatsukawa, H.Kusakari, T.Morikawa, Z.G.Gan, T.Czosnyka

Possible antimagnetic rotational band and neutron alignment in 101Pd

NUCLEAR REACTIONS 68Zn(37Cl, 3np), E=125 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(ADO) using GEMINI array at JAEA facility. 101Pd; deduced levels, J, π, bands, multipolarity, B(M1)/B(E2) and B(E1)/B(E2) ratios, alignments, configurations, anti-magnetic rotational (AMR) band. 100Pd; measured Eγ; deduced alignment, configuration for a band. Comparison with particle-rotor model calculations. Systematics of alignments and band configurations in 105,106,108,109Cd nuclei.

doi: 10.1103/PhysRevC.86.034326
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2011HI15      Eur.Phys.J. A 47, 138 (2011)

Y.Hirayama, M.Mihara, Y.X.Watanabe, S.C.Jeong, N.Imai, K.Matsuta, H.Miyatake, T.Hashimoto, H.Ishiyama, S.Ichikawa, T.Ishii, T.Izumikawa, I.Katayama, H.Kawakami, I.Nishinaka, K.Nishio, H.Makii, S.Mitsuoka, S.Momota, A.Osa, Y.Otokawa, T.K.Sato, Y.Wakabayashi

Spin-polarization of radioactive 123Ing.s. by the tilted-foil method

RADIOACTIVITY 123In(β-)[from U(p, F), E=34 MeV]; measured Iβ(θ, t), β polarization using tilted multifoils at ISOL-based facility TRIAC and β-NMR technique; deduced asymmetry.

doi: 10.1140/epja/i2011-11138-8
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2011LI19      Chin.Phys.C 35, 441 (2011)

G.-S.Li, X.-H.Zhou, Y.-H.Zhang, H.-B.Zhou, W.Hua, S.-T.Wang, B.Ding, H.-X.Wang, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa, M.Sugawara

Properties of the ν7/2-[503](f7/2) band in 185Pt

NUCLEAR REACTIONS 173Yb(16O, 4n)185Pt, E=90 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced high-spin states energies, J, π, B(M1)/B(E2). Comparison with Nilsson model calculations.

doi: 10.1088/1674-1137/35/5/006
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2011LI35      J.Phys.(London) G38, 095105 (2011)

G.S.Li, X.H.Zhou, Y.H.Zhang, Y.Zheng, M.L.Liu, W.Hua, H.B.Zhou, B.Ding, H.X.Wang, X.G.Lei, S.Q.Zhang, Y.Shi, J.Meng, F.R.Xu, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa, M.Sugawara

Signature inversion in the 7/2-[503] band of 185Pt

NUCLEAR REACTIONS 173Yb(16O, 4n), E=90 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced level scheme, J, π, intra-band B(M1)/B(E2) ratios. Comparison with theoretical values from the semi-classical Donau and Frauendorf approach.

doi: 10.1088/0954-3899/38/9/095105
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2011WR02      Int.J.Mod.Phys. E20, 443 (2011)

K.Wrzosek-Lipska, M.Zielinska, K.Hadynska-Klek, Y.Hatsukawa, J.Iwanicki, J.Katakura, M.Kisielinski, M.Koizumi, M.Kowalczyk, H.Kusakari, M.Matsuda, T.Morikawa, P.J.Napiorkowski, A.Osa, M.Oshima, D.Pietak, L.Prochniak, T.Shizuma, J.Srebrny, M.Sugawara, Y.Toh

Shape evolution in heaviest stable even-even molybdenum isotopes studied via Coulomb excitation

NUCLEAR STRUCTURE 96,98,100Mo; analyzed available data using quadrupole sum rule formalism; deduced electromagnetic reduced matrix elements using GOSIA code. Comparison with microscopic calculations.

doi: 10.1142/S0218301311017831
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2011ZH35      Eur.Phys.J. A 47, 107 (2011)

H.B.Zhou, X.H.Zhou, Y.H.Zhang, Y.Zheng, M.L.Liu, N.T.Zhang, L.Chen, S.T.Wang, G.S.Li, H.X.Wang, B.Ding, X.G.Lei, Y.X.Guo, G.X.Dong, F.R.Xu, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa

High-j proton alignments in 101Pd

NUCLEAR REACTIONS 76Ge(28Si, 3n), E=85, 95 MeV; measured in-beam Eγ, Iγ(θ), γγ-coin. 101Pd deduced levels, J, π, quasiparticle alignments, Routhians for yrast band, positive-parity band. 102Pd deduced quasiparticle alignments, Routhians for yrast band; calculated Routhian surfaces. Comparison with 99Ru, 103Cd.

doi: 10.1140/epja/i2011-11107-3
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2010SU05      Phys.Rev. C 81, 024309 (2010)

M.Sugawara, Y.Toh, M.Oshima, M.Koizumi, A.Kimura, A.Osa, Y.Hatsukawa, H.Kusakari, J.Goto, M.Honma, M.Hasegawa, K.Kaneko

Medium-spin states in 70Ge and the role of the g9/2 orbital

NUCLEAR REACTIONS 60Ni(12C, 2p), E=45 MeV; measured Eγ, Iγ, γγ-coin, and γ(θ). 70Ge; deduced levels, J, π, multipolarity, and bands. Comparison with shell model calculations using G-matrix and EPQQM interactions, and with structures of 66,68Ge.

doi: 10.1103/PhysRevC.81.024309
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2010ZH40      Chin.Phys.C 34, 1598 (2010)

H.-B.Zhou, X.-H.Zhou, Y.-H.Zhang, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa

Structure evolution along the yrast-line in 101Pd

NUCLEAR REACTIONS 76Ge(28Si, 3nγ)101Pd, E not given; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced high-spin states, yrast bands, J, π, level scheme.

doi: 10.1088/1674-1137/34/10/009
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2009HA11      Phys.Lett. B 674, 276 (2009)

T.Hashimoto, H.Ishiyama, Y.X.Watanabe, Y.Hirayama, N.Imai, H.Miyatake, S.C.Jeong, M.-H.Tanaka, N.Yoshikawa, T.Nomura, S.Mitsuoka, K.Nishio, T.K.Sato, A.Osa, S.Ichikawa, M.Matsuda, H.Ikezoe, S.K.Das, Y.Mizoi, T.Fukuda, A.Sato, T.Shimoda, K.Otsuki, T.Kajino

A new measurement of the astrophysical 8Li(d, t)7Li reaction

NUCLEAR REACTIONS 2H(8Li, t), E=0.18, 0.24, 0.30, 0.40, 0.46, 0.60, 0.75 MeV/nucleon; measured charged-particle spectra, σ, σ(θ), σ(E); deduced 7Li excitation energy spectra, astrophysical reaction rate. Comparison with other data.

doi: 10.1016/j.physletb.2009.03.031
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2140. Data from this article have been entered in the XUNDL database. For more information, click here.


2009HU17      Chin.Phys.C 33, 743 (2009)

W.Hua, X.-H.Zhou, Y.-H.Zhang, Y.-X.Guo, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa, B.Qi, S.-Q.Zhang, J.Meng, M.Sugawara

Study of the νi-113/2 band in 189Pt

NUCLEAR REACTIONS 176Yb(18O, 5n), E=88, 95 MeV; measured Eγ, Iγ, γγ-coin.; deduced level energies, J, π, bands, deformation. Triaxial particle-rotor model.

doi: 10.1088/1674-1137/33/9/006
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2009SU09      Phys.Rev. C 79, 064321 (2009)

M.Sugawara, Y.Toh, M.Oshima, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, J.Goto, H.Kusakari, T.Morikawa, Y.H.Zhang, X.H.Zhou, Y.X.Guo, M.L.Liu

Possible magnetic and antimagnetic rotations in 144Dy

NUCLEAR REACTIONS 92Mo(56Fe, 2n2p), E=280 MeV; measured Eγ, Iγ, γγ-coin, γ(θ). 144Dy; deduced levels, J, π, multipolarity, B(M1), B(E2), configurations, magnetic and antimagnetic rotational bands. A=136-146, even-A Ce, Nd, Sm, Gd, Tb, Dy; level systematics. 110Cd, 144Dy; discussed comparison of magnetic and antimagnetic rotors.

doi: 10.1103/PhysRevC.79.064321
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2008LI18      Chin.Phys.Lett. 25, 1633 (2008)

Y.Liu, X.-H.Zhou, Y.-H.Zhang, Y.Zheng, M.-L.Liu, Y.-X.Guo, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa, Y.Sun

Prolate and Oblate Shape Coexistence in 188Pt

NUCLEAR REACTIONS 176Yb(18O, 6n), E=88, 95 MeV; measured Eγ, Iγ, γγ-coin. 188Pt; deduced levels, J, π. Compared results to model calculations.

doi: 10.1088/0256-307X/25/5/030
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2008MA58      Chin.Phys.C 32, 31 (2008)

L.Ma, X.-H.Zhou, M.Oshima, Y.Toh, Y.-H.Zhang, Y.-X.Guo, X.-G.Lei, M.Koizumi, A.Osa, T.Hayakawa, Y.Hatsukawa, T.Shizuma, M.Sugawara

High-spin states in 190Pt

NUCLEAR REACTIONS 176Yb(18O, 4n), E=88, 95 MeV; measured Eγ, Iγ, γγ-coin, DCO. 190Pt; deduced levels, J, π, bands, configurations.

Data from this article have been entered in the XUNDL database. For more information, click here.


2008MO16      J.Korean Phys.Soc. 53, 1844 (2008)

C.-B.Moon, C.S.Lee, M.Oshima, Y.Toh, J.Goto, Y.Hatsukawa, A.Kimura, M.Koizumi, A.Osa, T.Komatsubara, K.Miyakawa

Multi-Quasiparticle States in Odd-Odd 118I

NUCLEAR REACTIONS 110Cd(12C, 3np), E=80 MeV; measured Eγ, Iγ, γγ-coin. 118I; deduced levels, J, π.

doi: 10.3938/jkps.53.1844
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2008OS02      Nucl.Instrum.Methods Phys.Res. B266, 4394 (2008)

A.Osa, S.-i.Ichikawa, M.Matsuda, T.K.Sato, S.-C.Jeong

Ion source development for the on-line isotope separator at JAEA

NUCLEAR REACTIONS 238U(p, F)163Eu/164Eu/165Eu/166Eu, E=36 MeV; measured separation yields, Eγ, Iγ; deduced T1/2. A forced electron beam induced arc discharge (FEBIAD-B2) type ion source.

doi: 10.1016/j.nimb.2008.05.063
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2007HA57      Eur.Phys.J. A 34, 363 (2007)

H.Hayashi, Y.Akita, O.Suematsu, M.Shibata, M.Asai, T.K.Sato, S.Ichikawa, I.Nishinaka, Y.Nagame, A.Osa, K.Tsukada, T.Ishii, Y.Kojima, A.Taniguchi

Qβ measurements of 158, 159Pm, 159, 161Sm, 160-165Eu, 163Gd and 166Tb using a total absorption BGO detector

RADIOACTIVITY 158,159Pm, 159,161Sm, 160,161,162,163,164,165Eu, 163Gd, 166Tb(β-) [from 238U(p, F), E=24 MeV and subsequent decay]; measured Eγ, Iγ, Eβ, Iβ; deduced Qβ, mass excess and two-neutron separation energies. Mass separator.

doi: 10.1140/epja/i2006-10522-9
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2007XI05      High Energy Phys. and Nucl.Phys. (China) 31, 247 (2007)

Y.-B.Xing, X.-H.Zhou, Y.-H.Zhang, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa, M.Sugawara

Quasiparticle Nature of Rotational Bands in 187Pt


2007ZH09      Phys.Rev. C 75, 034314 (2007)

X.H.Zhou, Y.B.Xing, M.L.Liu, Y.H.Zhang, Y.X.Guo, L.Ma, X.G.Lei, W.T.Guo, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa, F.R.Xu, M.Sugawara

Band properties of the transitional nucleus 187Pt

NUCLEAR REACTIONS 173Yb(18O, 4n), E=78, 85 MeV; measured Eγ, Iγ, γγ-coin. 187Pt deduced high-spin levels, J, π, configurations, B(M1)/B(E2). Comparison with model predictions.

doi: 10.1103/PhysRevC.75.034314
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2007ZH21      Chin.Phys.Lett. 24, 1203 (2007)

Y-H.Zhang, S.Guo, X.-H.Zhou, L.Ma, W.T.Guo, M.Oshima, Y.Toh, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, M.Sugawara, H.Kusakari

Identification of a New Band and Its Signature Inversion in 174Re

NUCLEAR REACTIONS 152Sm(27Al, 5n), E=140 MeV; measured Eγ, Iγ, γγ-coin. 174Re deduced high-spin levels, J, π, identified new rotational band.

doi: 10.1088/0256-307X/24/5/021
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2006FA11      High Energy Phys. and Nucl.Phys. (China) 30, 99 (2006)

Y.-D.Fang, Y.-H.Zhang, M.Oshima, Y.Toh, X.-H.Zhou, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, T.Morikawa, M.Nakamura, M.Sugawara, H.Kusakari

Study of Quasiparticles Bands in Odd-Odd 188Au


2006KO19      Nucl.Instrum.Methods Phys.Res. A562, 767 (2006)

M.Koizumi, A.Osa, Y.Toh, A.Kimura, M.Mizumoto, M.Oshima, M.Igashira, T.Ohsaki, H.Harada, K.Furutaka, H.Sakane, J.Hori, J.Goto, M.Sugawara, Y.Nagai, K.Kawade

Minor actinide neutron capture cross-section measurements with a 4π Ge spectrometer

doi: 10.1016/j.nima.2006.02.051
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2006MA39      Chin.Phys.Lett. 23, 1727 (2006)

L.Ma, Z-H.Zhou, Ye.-B.Xing, Yu.-Hu.Zhang, Y.-X.Guo, X.-G.Lei, C.-Y.Xie, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa, M.Sugawara

Properties of the πh9/2 (X) νi13/2 Oblate Band in 188Tl

NUCLEAR REACTIONS 157Gd(35Cl, 4n), E=170 MeV; measured Eγ, Iγ, γγ-coin. 188Tl deduced high-spin levels, J, π, configurations, B(M1)/B(E2).

doi: 10.1088/0256-307X/23/7/020
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2006WR01      Int.J.Mod.Phys. E15, 374 (2006)

K.Wrzosek, M.Zielinska, J.Choinski, T.Czosnyka, Y.Hatsukawa, J.Iwanicki, J.Katakura, M.Kisielinski, M.Koizumi, M.Kowalczyk, H.Kusakari, M.Matsuda, T.Morikawa, P.Napiorkowski, A.Osa, M.Oshima, L.Reissig, T.Shizuma, J.Srebrny, M.Sugawara, Y.Toh, Y.Utsuno, K.Zajac

Search for shape coexistence in even-even stable molybdenum isotopes using Coulomb excitation method

NUCLEAR REACTIONS 96,98,100Mo(20Ne, 20Ne'), E=50 MeV; 96,98,100Mo(40Ar, 40Ar'), E=90 MeV; 96Mo(84Kr, 84Kr'), E=225 MeV; 96Mo(136Xe, 136Xe'), E=614 MeV; Pb(96Mo, 96Mo'), E=424 MeV; measured Eγ, Iγ, (particle)γ-coin following Coulomb excitation. 96,98,100Mo deduced levels, J, π, quadrupole moments, shape coexistence features.

doi: 10.1142/S0218301306004235
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2006ZH22      Eur.Phys.J. A 28, 271 (2006)

X.H.Zhou, L.Ma, Y.B.Xing, Y.H.Zhang, Y.X.Guo, X.G.Lei, C.Y.Xie, M.Oshima, Y.Toh, M.Koizumi, A.Osa, Y.Hatsukawa, M.Sugawara, M.M.Ndontchueng

Observation of a πh9/2 (X) νi13/2 oblate band in 188Tl

NUCLEAR REACTIONS 157Gd(35Cl, 4n), E=170 MeV; measured Eγ, Iγ(θ), γγ-coin. 188Tl deduced levels, J, π, configurations, B(M1)/B(E2), configurations, oblate rotational band. Gemini array.

doi: 10.1140/epja/i2006-10060-6
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2006ZH38      Int.J.Mod.Phys. E15, 1437 (2006)

Y.H.Zhang, X.H.Zhou, J.J.He, Z.Liu, Y.D.Fang W.T.Guo, X.G.Lei, Y.X.Guo, M.M.Ndontchueng, L.Ma, M.Oshima, Y.Toh, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, H.Hayakawa, T.Shizuma, J.Katakura, M.Matsuda, G.De Angelis, N.Marginean, A.Gadea, D.R.Napoli, M.Axiotis, C.Rusu, T.Martinez, T.Morikawa, M.Sugawara, H.Kusakari, F.R.Xu

Search for signature inversion in the πi13/2 (X) νi13/2 bands in 182, 184, 186Au

NUCLEAR REACTIONS 152Sm(35Cl, 5n), E=183 MeV; 172Yb(19F, 5n), E=104 MeV; 159Tb(29Si, 4n), E=140 MeV; measured Eγ, Iγ, γγ-coin. 182,184,186Au deduced high-spin levels, J, π, configurations, signature inversion.

doi: 10.1142/S0218301306005125
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2006ZH52      High Energy Phys. and Nucl.Phys. (China), Supplement 2, 30, 208 (2006)

Y.-H.Zhang, X.-H.Zhou, J.-J.He, Z.Liu, Y.-D.Fang, W.-T.Guo, X.-G.Lei, Y.-X.Guo, L.Ma, M.M.Ndontchueng, M.Oshima, Y.Toh, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, H.Hayakawa, T.Shizuma, J.Katakura, M.Matsuda, T.Morikawa, M.Sugawara, H.Kusakari, G.De Angelis, N.Marginean, A.Gadea, D.R.Napoli, M.Axiotis, C.Rusu, T.Martinez, F.R.Xu

Search for Signature Inversion in the πi13/2(X)νi13/2 Bands in 182, 184, 186Au


2005AS05      Phys.Rev.Lett. 95, 102502 (2005)

M.Asai, K.Tsukada, M.Sakama, S.Ichikawa, T.Ishii, Y.Nagame, I.Nishinaka, K.Akiyama, A.Osa, Y.Oura, K.Sueki, M.Shibata

Experimental Identification of Spin-Parities and Single-Particle Configurations in 257No and Its α-Decay Daughter 253Fm

RADIOACTIVITY 257No(α) [from 248Cm(13C, 4n)]; measured Eγ, Eα, E(ce), αγ-, (ce)α-coin; deduced branching ratios. 253Fm deduced levels, J, π, ICC, configurations. 257No deduced ground-state J, π, configuration.

doi: 10.1103/PhysRevLett.95.102502
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2005II01      Eur.Phys.J. A 23, 33 (2005)

H.Iimura, M.Asai, S.Ichikawa, J.Katakura, M.Magara, A.Osa, M.Oshima, N.Shinohara, H.Yamamoto

Levels in 127La fed by the 127Ce beta-decay

RADIOACTIVITY 127Ce(β+), (EC) [from Mo(35Cl, xnp)]; measured Eγ, Iγ, E(ce), I(ce), βγ-, γγ-coin, T1/2. 127La deduced levels, J, π, T1/2, configurations. Comparison with Nilsson model predictions.

doi: 10.1140/epja/i2004-10067-y
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2005ZH32      Chin.Phys.Lett. 22, 2788 (2005)

Y.-H.Zhang, S.Guo, X.-H.Zhou, L.Ma, M.Oshima, Y.Toh, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, M.Sugawara, H.Kusakari

Observation of High-j Two-Quasiparticle Bands in Odd-Odd 174Re

NUCLEAR REACTIONS 152Sm(27Al, 5n), E=125, 132, 140 MeV; measured Eγ, Iγ, γγ-coin; deduced excitation functions. 174Re deduced high-spin levels, J, π, configurations, signature inversion. Level systematics in neighboring nuclides discussed.

doi: 10.1088/0256-307X/22/11/017
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2005ZI02      Acta Phys.Pol. B36, 1289 (2005)

M.Zielinska, T.Czosnyka, K.Wrzosek, J.Choinski, Y.Hatsukawa, J.Iwanicki, M.Koizumi, H.Kusakari, M.Matsuda, T.Morikawa, P.J.Napiorkowski, A.Osa, M.Oshima, T.Shizuma, J.Srebrny, M.Sugawara, K.Zajac

Shape coexistence in even-even Mo isotopes studied via Coulomb excitation

NUCLEAR REACTIONS 96Mo(20Ne, 20Ne'), (40Ar, 40Ar'), E=2.5 MeV/nucleon; Pb(96Mo, 96Mo'), E=424 MeV; measured Eγ, Iγ, (particle)γ-coin following Coulomb excitation. 96Mo deduced transitions.


2004KO03      Nucl.Phys. A730, 46 (2004)

M.Koizumi, A.Seki, Y.Toh, A.Osa, Y.Utsuno, A.Kimura, M.Oshima, T.Hayakawa, Y.Hatsukawa, J.Katakura, M.Matsuda, T.Shizuma, T.Czosnyka, M.Sugawara, T.Morikawa, H.Kusakari

Multiple Coulomb excitation experiment of 68Zn

NUCLEAR REACTIONS Pb(68Zn, 68Zn'), E=276 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 68Zn deduced transitions B(E2), B(M1), quadrupole moment.

doi: 10.1016/j.nuclphysa.2003.10.010
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2004SO08      Phys.Rev. C 69, 037302 (2004)

L.T.Song, X.H.Zhou, Y.H.Zhang, Y.X.Guo, X.G.Lei, Z.Y.Sun, M.Oshima, T.Toh, A.Osa, M.Koizumi, J.Katakura, Y.Hatsukawa, M.Matsuda, M.Sugawara

Rotational band built on the 1/2[600](i13/2) configuration in 179Au

NUCLEAR REACTIONS 149Sm(35Cl, 5n), E=164-180 MeV; measured Eγ, Iγ, γγ-coin. 179Au deduced levels, J, π, configuration, rotational band. Level systematics in neighboring isotopes discussed.

doi: 10.1103/PhysRevC.69.037302
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2004SO20      Chin.Phys.Lett. 21, 1243 (2004)

L.-T.Song, X.-H.Zhou, Y.-H.Zhang, Y.-X.Guo, Z.-Y.Sun, M.Oshima, T.Toh, A.Osa, M.Koizumi, J.Katakura, Y.Hatsukawa, M.Matsuda, M.Sugawara

Systematic Properties of the 1/2[660]i13/2 Bands in Odd-A Au Nuclei

NUCLEAR REACTIONS 149Sm(35Cl, 5n), E=164-180 MeV; measured Eγ, Iγ, γγ-coin. 179Au deduced high-spin levels, J, π, configurations.

NUCLEAR STRUCTURE 177,179,181,183,185Au; analyzed rotational bands.

doi: 10.1088/0256-307X/21/7/016
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2004SO37      High Energy Phys. and Nucl.Phys. (China) 28, 148 (2004)

L.-T.Song, X.-H.Zhou, Y.-X.Guo, Z.-Y.Sun, M.Oshima, T.Toh, A.Osa, M.Koizumi, J.Katakura, Y.Hatsukawa, M.Matsuda, M.Sugawara

Study of 1/2(660)(πi13/2) Rotation Band in 179Au


2004SU31      J.Nucl.Sci.Technol.(Tokyo) 41, 1129 (2004)

M.Sugawara, J.Goto, M.Oshima, H.Harada, K.Furutaka, M.Igashira, T.Ohsaki, M.Mizumoto, A.Osa, M.Koizumi, Y.Toh, Y.Nagai, K.Kawade

Design of a Compact 4π Ge Spectrometer for the Measurement of Neutron Capture Cross Sections of Minor Actinides

doi: 10.1080/18811248.2004.9726341
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2004XU11      High Energy Phys. and Nucl.Phys. (China) 28, 584 (2004)

Y.-B.Xu, X.-H.Zhou, L.-T.Song, Y.-X.Guo, Z.-Y.Sun, M.Oshima, T.Toh, A.Osa, M.Koizumi, J.Katakura, Y.Hatsukawa, M.Matsuda, M.Sugawara

Study of Collective Rotational Bands in 179Pt


2004ZH05      Eur.Phys.J. A 19, 11 (2004)

X.H.Zhou, M.Oshima, F.R.Xu, Y.Toh, Y.H.Zhang, Y.Zheng, Y.B.Xu, M.Koizumi, A.Osa, T.Hayakawa, Y.Hatsukawa, T.Shizuma, M.Sugawara

Configuration-dependent bands in 169Re

NUCLEAR REACTIONS 144Sm(28Si, 2np), E=140, 145, 150 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 169Re deduced high-spin levels, J, π, configurations, B(M1)/B(E2). Cranked mean-field calculations, comparison with neighboring isotopes.

doi: 10.1140/epja/i2003-10106-3
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2003HA15      Phys.Rev. C 67, 064310 (2003)

T.Hayakawa, Y.Toh, M.Oshima, A.Osa, M.Koizumi, Y.Hatsukawa, Y.Utsuno, J.Katakura, M.Matsuda, T.Morikawa, M.Sugawara, H.Kusakari, T.Czosnyka

Projectile Coulomb excitation of 78Se

NUCLEAR REACTIONS Pb(78Se, 78Se'), E=320 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 78Se deduced transitions B(E2), B(M1), quadrupole moments.

doi: 10.1103/PhysRevC.67.064310
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2003HE29      High Energy Phys. and Nucl.Phys. (China) 27, 784 (2003)

C.-Y.He, S.-X.Wen, L.-H.Zhu, Z.-M.Wang, G.-S.Li, R.-G.Ma, X.-G.Wu, G.-J.Yuan, C.-X.Yang, Y.Wang, Z.-L.Zhang, R.Meng, J.-B.Lu, R.-Q.Xu, S.-D.Xiao, M.Oshima, Y.Toh, A.Osa, M.Koizumi, Y.Hatsukawa, M.Matsuda, T.Hayakawa

Signature Splitting and Inversion and Back Bending in Negative Sideband in 80Rb


2003KO51      Eur.Phys.J. A 18, 87 (2003)

M.Koizumi, A.Seki, Y.Toh, M.Oshima, A.Osa, A.Kimura, Y.Hatsukawa, T.Shizuma, T.Hayakawa, M.Matsuda, J.Katakura, T.Czosnyka, M.Sugawara, T.Morikawa, H.Kusakari

Multiple Coulomb excitation experiment of 66Zn

NUCLEAR REACTIONS Pb(66Zn, 66Zn'), E=274.2 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 66Zn deduced transitions B(E2), level configurations, quadrupole moments. Cranked mean-field calculations.

doi: 10.1140/epja/i2003-10063-9
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2003SH13      Eur.Phys.J. A 17, 159 (2003)

T.Shizuma, Y.Toh, M.Oshima, M.Sugawara, M.Matsuda, T.Hayakawa, M.Koizumi, A.Osa, Y.H.Zhang, Z.Liu

Inelastic excitation of 187Re

NUCLEAR REACTIONS 187Re(82Se, 82Se'), E=500 MeV; measured prompt and delayed Eγ, Iγ, γγ-coin. 187Re deduced levels, J, π, gK-gR, configurations, isomeric state T1/2.

doi: 10.1140/epja/i2002-10156-y
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2003WE13      Chin.Phys.Lett. 20, 1932 (2003)

S.-X.Wen, C.-Y.He, L.-H.Zhu, Z.-M.Wang, G.-S.Li, R.-G.Ma, X.-G.Wu, G.-J.Yuan, C.-X.Yang, Y.Wang, Z.L.Zhang, R.Meng, M.Oshima, Y.Toh, A.Osa, M.Koizumi, Y.Hatsukawa, M.Matsuda, T.Hagakawa, M.M.Ndontcheng

Negative Parity Bands and Signature Splitting Inversion in 80Rb

NUCLEAR REACTIONS 65Cu(19F, 3np), E=75 MeV; 66Zn(18O, 3np), E=76 MeV; 68Zn(16O, 3np), E=80 MeV; measured Eγ, Iγ, γγ-coin. 80Rb deduced high-spin levels, J, π, configurations, signature inversion.

doi: 10.1088/0256-307X/20/11/008
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2003ZH38      Phys.Rev. C 68, 054313 (2003)

Y.H.Zhang, M.Oshima, Y.Toh, X.H.Zhou, M.Koizumi, A.Osa, A.Kimura, Y.Hatsukawa, T.Morikawa, M.Nakamura, M.Sugawara, H.Kusakari, T.Komatsubara, K.Furuno, H.L.Wang, P.Luo, C.S.Wu, F.R.Xu

Rotational bands and signature inversion in odd-odd 172Re

NUCLEAR REACTIONS 149Sm(27Al, 4n), E=130, 135, 140, 150 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin, excitation function. 172Re deduced high-spin levels, J, π, B(M1)/B(E2), configurations, signature inversion. Comparison with model predictions, energy level systematics.

doi: 10.1103/PhysRevC.68.054313
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2003ZH50      High Energy Phys. and Nucl.Phys. (China) 27, 313 (2003)

Y.-H.Zhang, M.Oshima, T.Morikawa, T.Hayakawa, Y.Toh, X.-H.Zhou, J.-J.He, Z.Liu, Z.-G.Gan, T.Shizuma, M.Koizumi, A.Osa, J.Katakura, Y.Hatsukawa, M.Matsuda, N.Shinohara, T.Ishii, H.Kusakari, M.Sugawara, K.Furuno, T.Komatsubara, T.Une, S.-X.Wen, L.-H.Zhu, Z.-M.Wang, F.-R.Xu

Study of Signature Inversion in the πi13/2(X)νi13/2 Bands of Odd-Odd Nuclei


2003ZH51      High Energy Phys. and Nucl.Phys. (China) 27, 574 (2003)

Y.-H.Zhang, M.Oshima, Y.Toh, X.-H.Zhou, M.Koizimi, A.Osa, A.Kimura, Y.Hatsukawa, T.Morikawa, M.Nakamura, M.Sugawara, H.Kusakari, T.Komatsubara, K.Furuno

Experimental Study of High-Spin Band Structures in Odd-Odd 172Re


2003ZH53      High Energy Phys. and Nucl.Phys. (China) 27, 984 (2003)

X.-H.Zhou, M.Oshima, F.R.Xu, Y.Toh, Y.-H.Zhang, Y.Zheng, M.Koizumi, A.Osa, T.Hayakawa, Y.Hatsukawa, T.Shizuma, M.Sugawara

Configuration-Dependent Bands in 169Re


2002KO02      Appl.Radiat.Isot. 56, 543 (2002)

Y.Kojima, M.Asai, M.Shibata, K.Kawade, A.Taniguchi, A.Osa, M.Koizumi, T.Sekine

Decay Scheme of 126La Isomers

RADIOACTIVITY 126La(EC), (β+) [from 94Mo(36Ar, 3pn)]; measured Eγ, Iγ, γγ-coin, E(ce), I(ce), T1/2; deduced log ft. 126La deduced isomers J, π. 126Ba deduced levels, J, π, ICC, δ. Mass separator.

doi: 10.1016/S0969-8043(01)00248-2
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2002LI21      Eur.Phys.J. A 13, 277 (2002)

Z.Liu, Y.H.Zhang, X.H.Zhou, M.L.Liu, W.J.Luo, Q.Y.Pan, Z.G.Gan, T.Hayakawa, M.Oshima, Y.Toh, T.Shizima, Y.Hatsukawa, A.Osa, T.Ishii, M.Sugawara

New Yrast Excited States of the N = 84 Nucleus 142Ce Observed in Deep Inelastic Reactions

NUCLEAR REACTIONS 139La(82Se, X)142Ce, E=420 MeV; measured Eγ, γγ-coin, DCO, following deep inelastic reactions. 142Ce deduced levels, J, π, configurations. Comparison with Shell model results.

doi: 10.1007/s10050-002-8755-8
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2002LI71      High Energy Phys. and Nucl.Phys. (China) 26, 1015 (2002)

Z.Liu, Y.-H.Zhang, Y.-X.Guo, X.-H.Zhou, X.-G.Lei, M.-L.Liu, W.-J.Luo, J.-J.He, Y.Zheng, Q.-Y.Pan, Z.-G.Gan, Y.-X.Luo, T.Hayakawa, M.Oshima, Y.Toh, T.Shizima, Y.Hatsukawa, A.Osa, T.Ishii, M.Sugawara

Observation and Empirical Shell-Model Study of New Yrast Excited States in the Nucleus 142Ce


2002OS07      Phys.Lett. 546B, 48 (2002)

A.Osa, T.Czosnyka, Y.Utsuno, T.Mizusaki, Y.Toh, M.Oshima, M.Koizumi, Y.Hatsukawa, J.Katakura, T.Hayakawa, M.Matsuda, T.Shizuma, M.Sugawara, T.Morikawa, H.Kusakari

First measurement of the quadrupole moment in the 2+1 state of 84Kr

NUCLEAR REACTIONS 98Mo, Ta(84Kr, 84Kr'), E=250 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 84Kr level deduced quadrupole moment, B(E2). Comparisons with large-scale shell model predictions.

doi: 10.1016/S0370-2693(02)02660-6
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2002SH01      Phys.Rev. C65, 024305 (2002)

M.Shibata, H.Iimura, M.Asai, A.Osa, K.Kawade, S.Ichikawa, M.Oshima, T.Sekine, N.Shinohara

Half-Life and Internal Conversion Electron Measurements in Low-Lying Levels of 125, 127Ba

RADIOACTIVITY 125,127La(EC) [from Mo(32S, pxn)]; measured Eγ, Iγ, (X-ray)γ-coin, E(ce), I(ce). 125,127La deduced levels T1/2. 125,127Ba deduced levels, J, π, ICC, isomer T1/2.

doi: 10.1103/PhysRevC.65.024305
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2002ZH13      Eur.Phys.J. A 13, 429 (2002)

Y.H.Zhang, M.Oshima, Y.Toh, M.Koizumi, A.Osa, T.Shizuma, T.Hayakawa, M.Sugawara, H.Kusakari, T.Morikawa, S.X.Wen, L.H.Zhu

Rotational Bands and Signature Inversion Phenomena in πh9/2 (X) νi13/2 and πi13/2 (X) νi13/2 Structures in Odd-Odd 176Ir

NUCLEAR REACTIONS 149Sm(31P, 4n), E=145-160 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 176Ir deduced high-spin levels, J, π, configurations, signature inversion.

doi: 10.1007/s10050-002-8773-6
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2002ZH42      Eur.Phys.J. A 15, 285 (2002)

X.H.Zhou, M.Oshima, Y.Toh, Y.H.Zhang, Y.Zheng, M.Koizumi, A.Osa, T.Hayakawa, Y.Hatsukawa, T.Shizuma, M.Sugawara

Rotational bands in 169Re

NUCLEAR REACTIONS 144Sm(28Si, 2np), E=140, 145, 150 MeV; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 169Re deduced high-spin levels, J, π, configurations.

doi: 10.1140/epja/i2002-10076-x
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2002ZH58      High Energy Phys. and Nucl.Phys. (China) 26, 445 (2002)

Y.-H.Zhang, M.Oshima, Y.Toh, M.Koizumi, a.Osa, T.Shizuma, T.Hayakawa, M.Sugawara, H.Kusakari, T.Morikawa, S.-X.Wen, L.-H.Zhu

Signature Inversion Phenomena in the Rotational Bands of Odd-Odd 176Ir


2002ZH61      High Energy Phys. and Nucl.Phys. (China) 26, 991 (2002)

X.-H.Zhou, M.Oshima, Y.Toh, Y.-H.Zhang, Y.Zheng, M.Koizumi, A.Osa, T.Hayakawa, Y.Hatsukawa, T.Shizuma, M.Sugawara

Rotational Bands in 169Re


2002ZI02      Acta Phys.Pol. B33, 515 (2002)

M.Zielinska, T.Czosnyka, J.Choinski, J.Iwanicki, P.Napiorkowski, J.Srebrny, A.Osa, Y.Utsuno, Y.Toh, M.Oshima, Y.Hatsukawa, J.Katakura, M.Koizumi, M.Matsuda, T.Shizuma, M.Sugawara, T.Morikawa, H.Kusakari

Shape Coexistence in 98Mo

NUCLEAR REACTIONS 98Mo(20Ne, 20Ne'), (84Kr, 84Kr'), (136Xe, 136Xe'), E not given; measured Eγ, Iγ following Coulomb excitation. 98Mo levels deduced quadrupole deformation, shape coexistence features. Comparison with Ge isotopes.


2002ZI06      Nucl.Phys. A712, 3 (2002)

M.Zielinska, T.Czosnyka, J.Choinski, J.Iwanicki, P.Napiorkowski, J.Srebrny, Y.Toh, M.Oshima, A.Osa, Y.Utsuno, Y.Hatsukawa, J.Katakura, M.Koizumi, M.Matsuda, T.Shizuma, M.Sugawara, T.Morikawa, H.Kusakari, A.D.Efimov, V.M.Mikhajlov

Electromagnetic structure of 98Mo

NUCLEAR REACTIONS 98Mo(20Ne, 20Ne'), E=50 MeV; 98Mo(84Kr, 84Kr'), E=250 MeV; 98Mo(136Xe, 136Xe'), E=614 MeV; measured Eγ, Iγ, (particle)γ-coin following Coulomb excitation. 98Mo deduced transitions E2 and M1 matrix elements, deformation, shape coexistence features. Comparison with IBM1 calculations.

doi: 10.1016/S0375-9474(02)01169-7
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2001AS02      Nucl.Instrum.Methods Phys.Res. A463, 205 (2001)

M.Asai, K.Kawade, M.Shibata, Y.Kojima, A.Osa, M.Koizumi, T.Sekine

Normalization of γ-γ Angular Correlation Coincidence Counts using Characteristic X-Rays

RADIOACTIVITY 126,128La(EC) [from Mo(36Ar, xnyp)]; measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 126,128Ba transitions deduced angular correlation parameters. Mass-separated sources.

doi: 10.1016/S0168-9002(01)00301-1
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2001TO13      J.Phys.(London) G27, 1475 (2001)

Y.Toh, T.Czosnyka, M.Oshima, T.Hayakawa, H.Kusakari, M.Sugawara, A.Osa, M.Koizumi, Y.Hatsukawa, J.Katakura, N.Shinohara, M.Matsuda

Multiple Coulomb Excitation of a 76Ge Beam

NUCLEAR REACTIONS Pb(76Ge, 76Ge'), E=300 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. 76Ge deduced transitions B(E2), quadrupole moments, deformation, collective features.

doi: 10.1088/0954-3899/27/7/307
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1999AS03      Phys.Rev. C59, 3060 (1999)

M.Asai, S.Ichikawa, K.Tsukada, M.Sakama, M.Shibata, Y.Kojima, A.Osa, I.Nishinaka, Y.Nagame, K.Kawade, T.Tachibana

β-Decay Half-Lives of New Neutron-Rich Isotopes 167, 168Tb and Levels in 167, 168Dy

RADIOACTIVITY 167,168Tb(β-) [from 238U(p, F)]; measured Eγ, Iγ, βγ-coin, T1/2. 167,168Dy deduced levels, J, π, configurations, rotational band features. Comparisons with neighboring nuclides.

doi: 10.1103/PhysRevC.59.3060
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1999SE04      J.Radioanal.Nucl.Chem. 239, 127 (1999)

T.Sekine, S.Ichikawa, A.Osa, M.Koizumi, H.Iimura, K.Tsukada, I.Nishinaka, Y.Hatsukawa, Y.Nagame, M.Asai, Y.Kojima, T.Hirose, M.Shibata, H.Yamamoto, K.Kawade

Recent Studies of Unstable Nuclei Far from Stability with the On-Line Isotope Separators of JAERI

doi: 10.1007/BF02349543
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1998KO06      Appl.Radiat.Isot. 49, 829 (1998)

Y.Kojima, M.Asai, A.Osa, M.Koizumi, T.Sekine, M.Shibata, H.Yamamoto, K.Kawade

Measurement of Q(EC) Values of 126La Isomers

RADIOACTIVITY 126mLa(β+) [from 94Mo(36Ar, n3p)]; measured β-spectra, βγ-coin; deduced Q(EC) values. On-line mass separator.

doi: 10.1016/S0969-8043(97)00303-5
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1998KO66      J.Phys.Soc.Jpn. 67, 3405 (1998)

Y.Kojima, M.Asai, A.Osa, M.Koizumi, T.Sekine, M.Shibata, H.Yamamoto, K.Kawade, T.Tachibana

QEC Measurement of 124, 125, 127-130La

RADIOACTIVITY 124,125,127,128,129,130La(β+), (EC) [from Mo, 29Mo(36Ar, 3pxn), E=5.4 MeV/nucleon]; measured Eγ, Iγ, β-spectra, βγ-coin, T1/2; deduced Q(EC), masses. HPGe, on-line mass separation.

ATOMIC MASSES 124,125,127,128,129,130La(β+), (EC) [from Mo, 29Mo(36Ar, 3pxn), E=5.4 MeV/nucleon]; measured Eγ, Iγ, β-spectra, βγ-coin, T1/2; deduced Q(EC), masses. HPGe, on-line mass separation.

doi: 10.1143/JPSJ.67.3405
Citations: PlumX Metrics


1998MU21      Phys.Rev. B58, 11313 (1998)

H.Muramatsu, E.Tanaka, H.Ishii, H.Ito, M.Misawa, T.Miura, Y.Fujita, K.Omata, S.Muto, M.Koizumi, A.Osa, T.Sekine, M.Yanaga, K.Endo, H.Nakahara, M.Fujioka

Calibration and Interpretation of Mossbauer Isomer Shift of the 81-keV Transition in 133Cs

NUCLEAR REACTIONS 133Cs(γ, γ), E=81 keV; measured emission Mossbauer spectra; deduced isomer shifts. Implanted radioactive 133Xe in metals.

RADIOACTIVITY 133Xe(β-); measured E(ce), I(ce). 133Cs deduced charge radius, isomer shift. Implanted radioactive 133Xe in metals.

doi: 10.1103/PhysRevB.58.11313
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1997AS05      Phys.Rev. C56, 3045 (1997)

M.Asai, T.Sekine, A.Osa, M.Koizumi, Y.Kojima, M.Shibata, H.Yamamoto, K.Kawade

Energy Systematics of Low-Lying 0+ States in Neutron-Deficient Ba Nuclei

RADIOACTIVITY 128,130La, 130Pr(β+)(EC) [from Mo(36Ar, X), E=195 MeV]; 124,126La(β+)(EC) [from 92,94Mo(36Ar, X), E=195 MeV]; measured Eγ, Iγ, γγ(θ), γ(t); deduced low-spin isomers, β-decay branching ratios. 124,126,128,130Ba, 130Ce deduced levels, J, π. Model calculations, other nuclei compared. ISOL.

doi: 10.1103/PhysRevC.56.3045
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1997AS07      Nucl.Instrum.Methods Phys.Res. A398, 265 (1997)

M.Asai, K.Kawade, H.Yamamoto, A.Osa, M.Koizumi, T.Sekine

A Five-HPGe Detector System for γ-γ Angular Correlation Measurements for Mass-Separated Short-Lived Nuclei

RADIOACTIVITY 152Eu, 126La(β+), (EC); measured Eγ, Iγ, γγ(θ). 152Sm, 152Gd, 126Ba deduced transitions angular correlations parameters.

doi: 10.1016/S0168-9002(97)00807-3
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1996AS05      J.Phys.Soc.Jpn. 65, 1135 (1996)

M.Asai, K.Tsukada, S.Ichikawa, A.Osa, Y.Kojima, M.Shibata, H.Yamamoto, K.Kawade, N.Shinohara, Y.Nagame, H.Iimura, Y.Hatsukawa, I.Nishinaka

Identification of a New Isotope 166Tb

RADIOACTIVITY 166Tb(β-) [from 238U(p, F)]; measured Eγ, Iγ, βγ-, γγ-coin, T1/2; deduced log ft. 166Dy deduced levels, β-feeding intensity. Mass separator.

NUCLEAR REACTIONS 238U(p, F), E=16 MeV; measured (fragment)γ-coin; deduced evidence for 166Tb. Mass separator.

doi: 10.1143/JPSJ.65.1135
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1996IC01      Nucl.Instrum.Methods Phys.Res. A374, 330 (1996)

S.Ichikawa, M.Asai, K.Tsukada, A.Osa, T.Ikuta, N.Shinohara, H.Iimura, Y.Nagame, Y.Hatsukawa, I.Nishinaka, K.Kawade, H.Yamamoto, M.Shibata, Y.Kojima

Mass Separation of Neutron-Rich Isotopes using a Gas-Jet Coupled Thermal Ion Source

NUCLEAR REACTIONS 238U(p, F), E=15 MeV; measured Eγ, Iγ following fission fragment decay, fragment yield vs mass number; deduced evidence for 166Tb; deduced production σ, reaction yields for 140,144Cs, 144Ba, 144,148La, 148Pr, 152Nd, 156Pm, 160Eu. Isotope separator plus gas-jet coupled thermal ion source.

RADIOACTIVITY 166Tb(β-) [from 238U(p, F), E=15 MeV]; measured Eγ, Iγ, T1/2. Monoxide ions from gas-jet coupled thermal ion source used in conjunction with isotope separator.

doi: 10.1016/0168-9002(96)00086-1
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE1853.


1996OS04      J.Phys.Soc.Jpn. 65, 928 (1996)

A.Osa, T.Ikuta, K.Kawade, H.Yamamoto, S.-I.Ichikawa

Beta-Decay Energies of 121,123,125Ba and 121-124,126Cs

RADIOACTIVITY 121,123Ba(β+EC) [from 92Mo(35Cl, X), E=5.3 MeV/nucleon]; 125Ba, 121,122,123,124,126Cs(β+EC) [from (nat)Mo(32S, X), E=5.2 MeV/nucleon]; measured Q(EC), Eγ, γγ-coin, hyperfine Ge, β+-ray detector.


1996SH10      Appl.Radiat.Isot. 47, 171 (1996)

N.Shigeta, R.M.Lambrecht, H.Matsuoka, A.Osa, M.Koizumi, K.Kobayashi, M.Izumo, K.Hashimoto, T.Sekine

Tantalum-183: Cyclotron production of a neutron-rich biomedical tracer

NUCLEAR REACTIONS, ICPND 186W(p, α), (p, n), E=13.6 MeV; measured residuals production σ, yield. Model comparison.

doi: 10.1016/0969-8043(95)00254-5
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0772.


1996SH31      J.Radioanal.Nucl.Chem. 205, 85 (1996)

N.Shigeta, H.Matsuoka, A.Osa, M.Koizumi, M.Izumo, K.Kobayashi, K.Hashimoto, T.Sekine, R.M.Lambrecht

Production Method of No-Carrier-Added 186Re

NUCLEAR REACTIONS, ICPND 186W(p, n), E=5-20 MeV; measured σ; deduced thick target yield. Stacked-foil activation.

doi: 10.1007/BF02040553
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2082.


1996TA26      J.Phys.Soc.Jpn. 65, 3824 (1996)

A.Taniguchi, T.Ikuta, A.Osa, H.Yamamoto, K.Kawade, J.-Z.Ruan, S.Yamada, Y.Kawase, K.Okano

Beta Decay of 153Nd and Reflection Asymmetric Deformation in 153Pm

RADIOACTIVITY 153Nd(β-) [from 235U(n, F), E=thermal]; measured Eγ, Iγ, γγ-, βγ-coin, γγ(θ), E(ce), I(ce), T1/2. 153Pm deduced levels, J, π, ICC, log ft, B(λ), δ. Mass-separated beam. Rotation-vibration coupling model.

doi: 10.1143/JPSJ.65.3824
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1995OS03      Nucl.Phys. A588, 185c (1995)

A.Osa, M.Asai, M.Koizumi, T.Sekine, S.Ichikawa, Y.Kojima, H.Yamamoto, K.Kawade

β+ Decay of Unstable Presodymium Isotopes: 127Pr, 126Pr and the New Isotope 125Pr

RADIOACTIVITY 127Pr(β+) [from 94Mo(36Ar, X), E=5.4 MeV/nucleon]; 125,126Pr(β+) [from 92Mo(36Ar, X), E=5.4 MeV/nucleon]; measured Eγ, Iγ, γγ-coin. 125Pr deduced T1/2. 127,125,126Ce deduced levels, Iγ.

doi: 10.1016/0375-9474(95)00137-P
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1994SE13      Z.Phys. A349, 143 (1994)

T.Sekine, A.Osa, M.Koizumi, S.Ichikawa, M.Asai, H.Yamamoto, K.Kawade

Decay of the New Isotope 127Pr

NUCLEAR REACTIONS 94Mo(36Ar, 2np), E=4.9 MeV/nucleon; measured Eγ, Iγ, βγ(t), γγ-coin; deduced evidence for 127Pr.

RADIOACTIVITY 127Pr(β+), (EC) [from 94Mo(36Ar, 2np), E=4.9 MeV/nucleon]; measured Eγ, Iγ, βγ(t), γγ-coin; deduced T1/2. 127Ce deduced levels.

doi: 10.1007/BF01291172
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1994SH37      J.Phys.Soc.Jpn. 63, 3263 (1994)

M.Shibata, T.Ikuta, A.Taniguchi, A.Osa, A.Tanaka, H.Yamamoto, K.Kawade, J.-Z.Ruan, Y.Kawase, K.Okano

Beta Decay of 151Pr into Levels in 151Nd

RADIOACTIVITY 151Pr(β-) [from 235U(n, F), E=thermal]; measured Eγ, Iγ, I(ce), γγ-coin; deduced log ft. 151Nd deduced levels, J, π, ICC, γ multipolarity. Hyperpure Ge, LEPS, Si(Li) detectors, mass separated beam of A=151+16(16O).

doi: 10.1143/JPSJ.63.3263
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1993OS06      Nucl.Instrum.Methods Phys.Res. A332, 169 (1993)

A.Osa, T.Ikuta, M.Shibata, M.Miyachi, H.Yamamoto, K.Kawade, Y.Kawase, S.Ichikawa

Measurement of β+-Ray Maximum Energy with an HPGe Detector

RADIOACTIVITY 62Cu, 68Ga(β+), 91Mo(β+); measured maximum Eβ+. 91Mo deduced Q(EC).

doi: 10.1016/0168-9002(93)90755-7
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1992IK02      Nucl.Instrum.Methods Phys.Res. A323, 697 (1992)

T.Ikuta, A.Osa, A.Taniguchi, H.Yamamoto, K.Kawade

Portable Neutron-Capture γ-Ray Source above 3.5 MeV with 252Cf

NUCLEAR REACTIONS 35Cl(n, γ), E=thermal; measured capture Eγ, Iγ; deduced portable 252Cf neutron source characteristics.

doi: 10.1016/0168-9002(92)90017-X
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1992MO13      Phys.Rev. C46, R6 (1992)

T.Morikawa, M.Oshima, T.Sekine, Y.Hatsukawa, S.Ichikawa, H.Iimura, A.Osa, M.Shibata, A.Taniguchi

Lifetime Measurement of the First 2+ State in 122,124,126Ba

RADIOACTIVITY 122,124,126La(β+) [from 92Mo(35Cl, xnyp)]; measured βγ(t). 122,124,126Ba level deduced T1/2, B(E2). BaF2, plastic scintillators. Neutron-proton interacting boson model.

doi: 10.1103/PhysRevC.46.R6
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1992OS07      Nucl.Instrum.Methods Phys.Res. B70, 551 (1992)

A.Osa, T.Ikuta, A.Taniguchi, H.Yamamoto, K.Kawade, S.Ichikawa, Y.Kawase

Measurement of β-Ray Maximum Energy with an HPGe Detector by Means of β+-Annihilation Photons Coincidence

RADIOACTIVITY 68Ga(β+), (EC) [from 68Ge(EC-decay)]; 126Cs(β+)(EC) [from Mo(32S, X), E=5.1 MeV/nucleon]; measured β+-spectra, endpoint energy, βγ-coin; deduced Q(EC). Hyperpure Ge β-ray detector, two pairs of BaF2 scintillation detectors for annihilation photons.

doi: 10.1016/0168-583X(92)95981-V
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1991II02      J.Phys.Soc.Jpn. 60, 3585 (1991)

H.Iimura, M.Shibata, S.-I.Ichikawa, T.Sekine, M.Oshima, N.Shinohara, M.Miyachi, A.Osa, H.Yamamoto, K.Kawade

Level Scheme of 123Ba Fed by the 123La Decay

RADIOACTIVITY 123La(β+) [from 92Mo(35Cl, 2n2p), E=180 MeV]; measured Eγ, Iγ, γγ-coin, βγ(t). 123Ba deduced levels, J, π, band structure, Nilsson assignments, γ-multipolarity, T1/2.

NUCLEAR REACTIONS 92Mo(35Cl, 2n2p), E=180 MeV; measured Eγ, Iγ, γγ-coin, βγ(t).

doi: 10.1143/JPSJ.60.3585
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1991KA35      Nucl.Instrum.Methods Phys.Res. A301, 594 (1991)

K.Kawade, T.Katou, A.Osa, M.Shibata, H.Yamamoto, T.Katoh, T.Iida, A.Takahashi

Measurement of β+-Activity by Detecting 511 keV Annihilation γ-Rays

RADIOACTIVITY 68Ga, 62Cu, 91Mo(β+); measured annihilation γ-ray production yield vs absorber thickness; deduced detection efficiency features.

doi: 10.1016/0168-9002(91)90029-P
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