1989 Fiscal Year Annual Research Report

重イオンによる核分光学研究

Research Project

Project/Area Number	62302014
Research Institution	Hiroshima University
Principal Investigator	吉沢康和広島大学, 理学部, 教授 (00028086)
Co-Investigator(Kenkyū-buntansha)	黒柳登喜大九州大学, 理学部, 教授 (70037159) 宇井治生広島大学, 理学部, 教授 (70004265) 有馬朗人東京大学, 理学部, 教授 (40011465) 丸森寿夫筑波大学, 物理学系, 教授 (10037145) 古野興平筑波大学, 物理学系, 教授 (40015772)
Keywords	原子核 / 重イオンビ-ム / 核分光学 / 核構造
Research Abstract	本年は、この科学研究費の第3年度すなわち最終年度であり、次の研究会、ワ-クショップ、共同研究、理論計算を行った。 (1)研究会、「ガンマ線と核構造」の研究会を平成元年8月31日から9月2日にかけて大阪大学核物理研究センタ-で開催した。インビ-ム分光学に関する実験、ク-ロン励起の実験、高励起の実験、および原子核の集団模型、巨大共鳴等の理論が発表され、活発な討論が行われた。 (2)ワ-クショップ、平成元年11月29日〜30日に広島大学においてワ-クショップを開催した。主として実験関係のものが集まり、インビ-ム分光学とク-ロン励起に関するニ-ルス・ボ-ア研究所における国際共同研究の報告と実験の打合せを行った。 (3)ク-ロン励起と同位体シフトに関する実験と理論研究に関する討論のため、東大理から広島大理へ、広島大理から東大核研へそれぞれ出張した。実験結果の解析と理論解析に有益であった。 (4)実験デ-タを解析するため、九大から広島大へ来てデ-タソ-ティングとグラフィック解析のプログラム開発を行った。これにより、相互にコンピュ-タのデ-タ交換も行えるようになり、解析が非常によく進むようになった。以上のように昭和62年度、63年度に引きつづき本年度もこの科学研究費を使って、重イオンビ-ムを用いた核分光学の研究に寄与することができた。特に、本年度からニ-ルス・ボ-ア研究所における国際共同研究の実験ができるようになったので、その成果が大きい。

Research Products
(39 results)

All Other

All Publications (39 results)

[Publications] T.Komatsubara: "High-Spin States on the odd-odd ^<124>Cs nucleus" Zeitschrift fur Physik A.
[Publications] K.Heiguchi: "Beta decay of ^<89m>Tc and ^<89>Tc" Zeit.Phys.A.
[Publications] M.Oshima: "Electromagnetic fransition probabilities in the natural-parity rotational band of ^<173>Yb" Physical Review C. 40. 2084-2090 (1989)
[Publications] M.Oshima: "Rotational perturbation to the natural-parity rotational ban of ^<163>Dy" Physical Review C. 39. 645-651 (1989)
[Publications] M.Oshima: "Signature dependence of M1 and E2 transition probabilities for the i_<13/2> rotational band of ^<161>Dy" Physical Review C. 37. 2578-2584 (1988)
[Publications] E.Minehara: "Signature dependence observed for M1 transitions between rotational levels based on an f_<7/2> singleparticle state in ^<163>Dy" Physical Review C. 35. 858-860 (1987)
[Publications] T,Otsuka: "Proton-Neutron sdg Boson Model and spherical-Deformed Phase Transition" Physics Letters. 215B. 205-210 (1988)
[Publications] T.Otsuka: "Alpha Decay from Quandrupole-Octupole Collective States of Actinide Nuclei" J.Phys.Soc.Jpn.58. 530-537 (1989)
[Publications] N.Yoshida: "Signature Property of Odd-A Nuclei in the Interacting Boson-Fermion Model" Nuclear Physics. A503. 90-112 (1989)
[Publications] T.Marumori: "A Microscopic Theory of Nuclear Dissipative Collective Dynamics" Nucl.Phys.
[Publications] M.Matsuo: "Dissipative Mechanism of the Large Amplitude Collective Motion" Prog.Theor.Phys.82. 1084-1105 (1989)
[Publications] F.Sakata: "Breaking of Stability Condition for Dynamical Collective Subspace" Prog.Theor.Phys.82. 965-987 (1989)
[Publications] F.Sakata: "Master Equation in the Microscopic Theory of Nuclear Collective Dynamics" Ann.of Physics. 194. 30-64 (1989)
[Publications] K.Muramatsu: "Extraction of Dynamical Collective Subspace for Large Amplitude Collective Motion" Prog.Theor.Phys.80. 678-693 (1988)
[Publications] A.Ikeda: "Sphape Fluctuation as Responsible for Signature Inversion" Physical Review Letters. 63. 139-142 (1989)
[Publications] A.Ikeda: "Signature-inversion in Particle-triaxial Rotor System" Nuclear Physics A. 480. 85-103 (1988)
[Publications] K.Sugawara: "Thermal high spin giant dipole resonance in Er isotopes" Physics Letters B. 192. 268-272 (1987)
[Publications] K.Sugawara: "g-factors and backbending along the yrast in Er isotopes for A=158 to 170" Physics Letter B. 207. 243-248 (1988)
[Publications] T.Tanabe: "Extended thermal random phase approximation equation for nuclear collective excitation at finite temperature" Physical Review C. 37. 2802-2820 (1988)
[Publications] K.Sugawara: "The nuclear Meissner effect and superdeformation in the number-projected constrained-cranked HFB approach" Physics Letters B.
[Publications] S.Mizutori: "Octpole Vibrations Built on Superdeformed Rotational Bands" Progress of Theortical Physics. 83. (1990)
[Publications] N.Kato: "Effect of Heavy Ion Irradiation on Implanted Si Position Sensitive Detector" Nucl.Instr.& Meth.B.
[Publications] K.Yamada: "Coupling effect between quadrupole phonon and pairing vibration in odd-mass nuclei" Nuclear Physics. A480. 143-161 (1988)
[Publications] T.Takada: "Application of Dyson-typenon-unitary representation of the self-consistent collective-coordinate method to simple models,I.SU(3)model" Nuclear Physics. A485. 189-209 (1988)
[Publications] H.Thorn: "Application of the Dyson-type non-unitary representation of the self-consistent collective-coordinate method to simple models,II.0(4)model" Nuclear Physics. A486. 221-234 (1989)
[Publications] K.Takada: "Hermitian treatment of Dyson boson theory" Physical Review. C38. 2450-2452 (1988)
[Publications] K.Takada: "Dyson boson mapping theory including ground-state correlation" Nuclear Physics. A490. 262-274 (1988)
[Publications] K.Takada: "Microscopic study on the shape transition in the Sm isotopes,I.Effect of ground-state correlation" Nuclear Physics. A496. 224-238 (1989)
[Publications] K.Yamada: "Microscopic study on the shape phase transition in the Sm isotopes,II.Contribution from non-collective degrees of freedom" Nuclear Physics. A496. 239-254 (1989)
[Publications] K.Yamada: "Microscopic study on the shape phase transition in the Sm isotopes,III.E2 transitions" Nuclear Physics. A503. 53-64 (1989)
[Publications] S.E.Arnell: "The Nord Ball System Adapted for Spectroscopy of Nuclei far from Stability" Nuclear Physics in Nineties. (1990)
[Publications] S.Mitarai: "A Charged Particle Multiplicity Filter for Nuclidic Identification of the Specific Gamma Rays" Nuclear Instr.& Meth.A277. 491-496 (1989)
[Publications] S.Suematsu: "The Nuclear Structure of ^<83>Zr" Nuclear Physics. A485. 304-326 (1988)
[Publications] T.Kuroyanagi: "New Neutron-Deficient Isotopes ^<83>Nb and ^<85>Nb" Nuclear Physics. A484. 264-274 (1988)
[Publications] K.Heiguchi: "The States of ^<75>Se Populated by the Beta Decay of ^<73>Br" Nuclear Physics. A474. 484-498 (1987)
[Publications] K.Takabe: "Application of Dyson mapping to odd-mass nuclei" Nuclear Physics. A462. 561-575 (1987)
[Publications] H.Tsukuma: "Application of the Dyson boson mapping to the analysis of the phase transition at N=88-90" Nuclear Physics. A466. 70-84 (1987)
[Publications] K.Takada: "Biunitary representation of the selfconsistent collectivecoordinate method for large-amplitude collective motion" Nuclear Physics. A468. 11-28 (1987)
[Publications] 高田健次郎: "物理学最前線21「ダイソン型ボソン展開法」" 共立出版株式会社, 60 (1988)

1989 Fiscal Year Annual Research Report

重イオンによる核分光学研究

Principal Investigator

吉沢 康和 広島大学, 理学部, 教授 (00028086)

Research Products

[Publications] T.Komatsubara: "High-Spin States on the odd-odd ^<124>Cs nucleus" Zeitschrift fur Physik A.

[Publications] K.Heiguchi: "Beta decay of ^<89m>Tc and ^<89>Tc" Zeit.Phys.A.

[Publications] M.Oshima: "Electromagnetic fransition probabilities in the natural-parity rotational band of ^<173>Yb" Physical Review C. 40. 2084-2090 (1989)

[Publications] M.Oshima: "Rotational perturbation to the natural-parity rotational ban of ^<163>Dy" Physical Review C. 39. 645-651 (1989)

[Publications] M.Oshima: "Signature dependence of M1 and E2 transition probabilities for the i_<13/2> rotational band of ^<161>Dy" Physical Review C. 37. 2578-2584 (1988)

[Publications] E.Minehara: "Signature dependence observed for M1 transitions between rotational levels based on an f_<7/2> singleparticle state in ^<163>Dy" Physical Review C. 35. 858-860 (1987)

[Publications] T,Otsuka: "Proton-Neutron sdg Boson Model and spherical-Deformed Phase Transition" Physics Letters. 215B. 205-210 (1988)

[Publications] T.Otsuka: "Alpha Decay from Quandrupole-Octupole Collective States of Actinide Nuclei" J.Phys.Soc.Jpn.58. 530-537 (1989)

[Publications] N.Yoshida: "Signature Property of Odd-A Nuclei in the Interacting Boson-Fermion Model" Nuclear Physics. A503. 90-112 (1989)

[Publications] T.Marumori: "A Microscopic Theory of Nuclear Dissipative Collective Dynamics" Nucl.Phys.

[Publications] M.Matsuo: "Dissipative Mechanism of the Large Amplitude Collective Motion" Prog.Theor.Phys.82. 1084-1105 (1989)

[Publications] F.Sakata: "Breaking of Stability Condition for Dynamical Collective Subspace" Prog.Theor.Phys.82. 965-987 (1989)

[Publications] F.Sakata: "Master Equation in the Microscopic Theory of Nuclear Collective Dynamics" Ann.of Physics. 194. 30-64 (1989)

[Publications] K.Muramatsu: "Extraction of Dynamical Collective Subspace for Large Amplitude Collective Motion" Prog.Theor.Phys.80. 678-693 (1988)

[Publications] A.Ikeda: "Sphape Fluctuation as Responsible for Signature Inversion" Physical Review Letters. 63. 139-142 (1989)

[Publications] A.Ikeda: "Signature-inversion in Particle-triaxial Rotor System" Nuclear Physics A. 480. 85-103 (1988)

[Publications] K.Sugawara: "Thermal high spin giant dipole resonance in Er isotopes" Physics Letters B. 192. 268-272 (1987)

[Publications] K.Sugawara: "g-factors and backbending along the yrast in Er isotopes for A=158 to 170" Physics Letter B. 207. 243-248 (1988)

[Publications] T.Tanabe: "Extended thermal random phase approximation equation for nuclear collective excitation at finite temperature" Physical Review C. 37. 2802-2820 (1988)

[Publications] K.Sugawara: "The nuclear Meissner effect and superdeformation in the number-projected constrained-cranked HFB approach" Physics Letters B.

[Publications] S.Mizutori: "Octpole Vibrations Built on Superdeformed Rotational Bands" Progress of Theortical Physics. 83. (1990)

[Publications] N.Kato: "Effect of Heavy Ion Irradiation on Implanted Si Position Sensitive Detector" Nucl.Instr.& Meth.B.

[Publications] K.Yamada: "Coupling effect between quadrupole phonon and pairing vibration in odd-mass nuclei" Nuclear Physics. A480. 143-161 (1988)

[Publications] T.Takada: "Application of Dyson-typenon-unitary representation of the self-consistent collective-coordinate method to simple models,I.SU(3)model" Nuclear Physics. A485. 189-209 (1988)

[Publications] H.Thorn: "Application of the Dyson-type non-unitary representation of the self-consistent collective-coordinate method to simple models,II.0(4)model" Nuclear Physics. A486. 221-234 (1989)

[Publications] K.Takada: "Hermitian treatment of Dyson boson theory" Physical Review. C38. 2450-2452 (1988)

[Publications] K.Takada: "Dyson boson mapping theory including ground-state correlation" Nuclear Physics. A490. 262-274 (1988)

[Publications] K.Takada: "Microscopic study on the shape transition in the Sm isotopes,I.Effect of ground-state correlation" Nuclear Physics. A496. 224-238 (1989)

[Publications] K.Yamada: "Microscopic study on the shape phase transition in the Sm isotopes,II.Contribution from non-collective degrees of freedom" Nuclear Physics. A496. 239-254 (1989)

[Publications] K.Yamada: "Microscopic study on the shape phase transition in the Sm isotopes,III.E2 transitions" Nuclear Physics. A503. 53-64 (1989)

[Publications] S.E.Arnell: "The Nord Ball System Adapted for Spectroscopy of Nuclei far from Stability" Nuclear Physics in Nineties. (1990)

[Publications] S.Mitarai: "A Charged Particle Multiplicity Filter for Nuclidic Identification of the Specific Gamma Rays" Nuclear Instr.& Meth.A277. 491-496 (1989)

[Publications] S.Suematsu: "The Nuclear Structure of ^<83>Zr" Nuclear Physics. A485. 304-326 (1988)

[Publications] T.Kuroyanagi: "New Neutron-Deficient Isotopes ^<83>Nb and ^<85>Nb" Nuclear Physics. A484. 264-274 (1988)

[Publications] K.Heiguchi: "The States of ^<75>Se Populated by the Beta Decay of ^<73>Br" Nuclear Physics. A474. 484-498 (1987)

[Publications] K.Takabe: "Application of Dyson mapping to odd-mass nuclei" Nuclear Physics. A462. 561-575 (1987)

[Publications] H.Tsukuma: "Application of the Dyson boson mapping to the analysis of the phase transition at N=88-90" Nuclear Physics. A466. 70-84 (1987)

[Publications] K.Takada: "Biunitary representation of the selfconsistent collectivecoordinate method for large-amplitude collective motion" Nuclear Physics. A468. 11-28 (1987)

[Publications] 高田健次郎: "物理学最前線21「ダイソン型ボソン展開法」" 共立出版株式会社, 60 (1988)

吉沢康和広島大学, 理学部, 教授 (00028086)