1991 年度実績報告書

高励起領域に於ける原子核構造とその励起機構

研究課題

研究課題/領域番号	02302018
研究機関	新潟大学
研究代表者	池田清美新潟大学, 理学部, 教授 (40011548)
研究分担者	滝川昇東北大学, 理学部, 助教授 (00125600) 赤石義紀北海道大学, 理学部, 助教授 (50001839) 堀内昶京都大学, 理学部, 助教授 (60027349) 坂田文彦東京大学, 原子核研究所, 助手 (50013438) 鈴木宜之新潟大学, 理学部, 助教授 (70018670)
キーワード	超変形回転帯 / 中性子超過剰核 / ソフトEIモ-ド / 分子共鳴状態 / ハイパ-核 / 核融合反応 / 超重原子核合成 / 重イオン破砕反応
研究概要	本計画の課題は5つで,前年度に引続き成果が認められる。超変形核構造の高スピン状態の課題は,超変形回転帯の領域の増大と共に,分光学的性質に関する実験デ-タの蓄積に対応して理論的研究は着実な発展を示した。INS国際シンポジュウム「高速回転原子核1992」に向けての研究会が昨年度末に開かれ,国内研究の進展状況が纏められた。中性子過剰核の構造と励起機構の研究は本格的な発展をみせ,特異なハロ-構造とそれに固有な励起モ-ドの微視的模型に基づく研究は,一段落する迄に進展した。また中性子雫線核に至る全域的研究が進んだ。特に進展したのは,量子的分子動力学に基づく破砕反応の解析と,低エネルギ-の核融合反応の理論的解析である。これらの研究成果を基に,国際研究集会「不安定核の構造と反応」が,本研究代表者が主催者となって6月に開催されたことは特筆できる。分子共鳴状態に関する課題は,より重い核での分子的状態の発生の機構や,外殼核子との結合の機構の解明等の理論的研究に着実な進展がみられた。ハイパ-核構造の研究は,S=ー1のランダ-及びシグマハイパ-核と共にS=ー2の二重ランダ-ハイパ-核への研究が本格的に進み始めた。我国(KEK及びINS)の実験研究と共に発展しているため,下田でのINS国際シンポジュウム「ハイパ-核とストレンジ粒子の物理学」(1991年12月)での研究諸成果の報告は注目を浴びた。スピン・アイソスピン自由度を含む巨大共鳴の研究は,ソフトモ-ドの発生という新たな課題を含めて展開がみられた。以上の様な成果と発展からみて,本研究計画の重要な狙い「5つの極限領域を含む高励起領域に於ける広義の核多体系の構造とその励起機構の研究」は相互に内的関連性をもち,研究領域の拡大の相互の重なりの拡大で新たな発展を迎えている。最終年度が楽しみな状況となっている。

研究成果
(47件)

すべてその他

すべて文献書誌 (47件)

[文献書誌] I.Arisaka: "BARYON‐BARYON POTENTIALS IN TERMS OF GAUSSIAN BASIS [I] One Boson Exchange Potential" Few‐Body XIII. 158-159 (1992)
[文献書誌] I.Arisaka: "BARYON‐BERYON POTENTIALS IN TERMS OF GAUSSIAN BASIS [II] The Funabashi Gaussian potential" Few‐Body XIII. 160-161 (1992)
[文献書誌] I.Arisaka: "BARYON‐BARYON POTENTIALS IN TERMS OF GAUSSIAN BASIS [III] The Σ^+P Gausssian potential" Few‐Body XIII. 162-163 (1992)
[文献書誌] T.Suzuki: "Scattering of polarized electons in isoscalar nuclear transitions and the strange anomalous magnetic moment form factor of the nucleon" Nucl.Phys.A515. 609-620 (1990)
[文献書誌] T.Suzuki: "Study of the isoscalar weak neutral current by inelastic υ scattering from ^<12>C and ^<10>B" Phys. Letts.B252. 323-326 (1990)
[文献書誌] T.Suzuki: "Effects of valence nucleon orbits and charge symmetry breaking interaction on the Nolen‐Schiffer anomaly of mirror nuclei" Nucl. Phys.A536. 141-158 (1992)
[文献書誌] K.Tanabe: "Microscopic structure of the superdeformed rotational band in ^<132>Ce" prog. Theor. Phys.83. 1149-1155 (1990)
[文献書誌] K.Tanabe: "Proof of the extended Bloch‐Messiah theorem in the thermal Hartree‐Fock‐Bogoliubov theory" Phys. Letts.B. 247. 202-205 (1990)
[文献書誌] K.Tanabe: "Microscopic properties of the superdeformed rotational states in the light rare‐earth nuclei ^<132>Ce and ^<134,136>Nd" Phys.Letts.B. 259. 12-18 (1991)
[文献書誌] 和田正信他: "Baryon‐Baryon Potentials in Terms of Gaussian Basis (I)" XIV International Conference on Few‐Body Problems in Physics. 158-159 (1992)
[文献書誌] 大日方聡夫他: "Baryon‐Baryon Potentials in Terms of Gaussian Basis (II)" XIII International Conference on Few‐Body Problems in Physics. 160-161 (1992)
[文献書誌] 中川公子他: "Baryon‐Baryon Potentials in Terms of Gaussian Basis (III)" XIII International Conference on Few‐Body Problems in Physics. 162-163 (1992)
[文献書誌] N. Yoshida: "Spin Dependence of Moment of Inertia and IBM" Phys. Lett.B256. 129-133 (1991)
[文献書誌] N. Takigawa: "Interaction Potential and Fusion of a Halo Nucleus" Phys.Lett.B265. 23-28 (1991)
[文献書誌] S. Okabe: "Light Σ‐hypernuclei and α‐clustering" Nucl. Phys.A514. 613-620 (1990)
[文献書誌] Y. Suzuki: "Electromagnetic Dissociation of ^<11>Li and Soft Dipole Mode" Nucl. Phys.A517. 599-614 (1990)
[文献書誌] Y. Suzuki: "The Ground‐state Structure and the Soft Dipole Mode of the He Nucleus" Nucl. Phys.A528. 395-408 (1991)
[文献書誌] Y. Suzuki: "Isobaric Analogue Halo States" Phys. Lett.B272. 173-177 (1991)
[文献書誌] Y. Hashimoto: "A Microscopic Theory of Dissipative Nuclear Collective Motions" Thermal Field Theories. 223-231 (1991)
[文献書誌] H. Kurasawa: "The ω‐Meson Mass and the Nucleon Size in Nuclei" Prog. Theor. Phys.84. 1030-1035 (1990)
[文献書誌] T.Kishimoto: "Perturbation Expansion in Dynamical Nuclear Field Theory and Its Relation with BosonExpansion Theory" Prog. Theor. Phys.84. 470-493 (1990)
[文献書誌] T.Kishimoto: "Exact Relation between Dynamical Nuclear Field Theory and Boson Expansion Theory in a Tamm‐Dancoff‐Boson system" Prog. Theor. Phys.85. 1057-1077 (1991)
[文献書誌] 岸本照夫: "2体相互作用効果を取り入れたボゾン展開の可能性ーDNFT法による簡単な模型での考察ー" 素粒子論研究. 84. B36-B40 (1991)
[文献書誌] M.Kamimura: "Non‐adiabatic quantum three‐body calculation of excited‐state muon tranfer" Muon Catalyzed Fusion. 5. 33-42 (1990)
[文献書誌] M. Kamimura: "Coupled rearrangement channel Calculations of muonic molecules and A=3 nuclei" Nucl. Phys.A508. 17-28 (1990)
[文献書誌] Y. Iseri: "Spin‐dependent interactions and polarization observables in elastic scattering of deuteron at intermediate energies" Nucl. Phys.A533. 574-600 (1991)
[文献書誌] H. Sagawa: "Sum Rule Approach for Decoupled Dipole Mode" Phys. Lett.B251. 17-22 (1990)
[文献書誌] T. Hoshino: "Giant Resonances in Light Neutron‐rich Nuclei" Nucl. Phys.A523. 228-246 (1991)
[文献書誌] K. Itonaga: "Polarization in p‐Shell Λ‐Hypernuclear Productions" Proc. 5th Int. Symp. Mesons & Light Nuclei. Praque,1991. Supple Few‐Body Physics.
[文献書誌] K. Itonaga: "Hypernuclear Polarization and Λ‐Spin Polarization in (π^+,K^+) and (K^‐,π^‐) Reactions" Proc. Int. Symp. on Hypernuclear and strange particle Physics,Shimoda,1991.Nucl.Phys.
[文献書誌] T. Harada: "Structure of the Σ Hypernuclear State" Nucl. Phys.A507. 715-730 (1990)
[文献書誌] S. Tadokoro: "Nucleus‐Σ Potential" Phys. Rev.C42. 2591-2596 (1990)
[文献書誌] S. Nakaichi: "Lightest Double‐Λ Hypernucleus" Prog. Theor. Phys.84. 1025-1029 (1990)
[文献書誌] N. Takigawa: "Dynamic polarization potential induced by the Coulomb excitation of deformed heavy ions:Geometric scattering approach" Phys. Rev.C44. 477-484 (1991)
[文献書誌] N. Takigawa: "A geometric approach to strong coupling effects in heavy‐ion collisions Deviation from the Fresnel diffraction pattern" Phys. Letts.B262. 199-204 (1991)
[文献書誌] N. Takigawa: "Interaction potential and fusion of a halo nucleus" Phys. Letts.B265. 23-28 (1991)
[文献書誌] K. Muto: "β^+ Decays of Very proton‐Rich sd‐Shell Nuclei" Phys. Rev.C43. 1487-1490 (1991)
[文献書誌] K. Muto: "A Comparative Study of Double Beta Decay by Shell Model and Οuasiparticle RPA" Z. Phys.A339. 435-444 (1991)
[文献書誌] A. Stsudt: "Nuclear Matrix Elements for Double Positron Emission" Phys. Lett.268B. 312-316 (1991)
[文献書誌] S. Tazaki: "Variation of pairing correlations caused by nuclear rotation" Phys. Rev. C. 43. 596-601 (1991)
[文献書誌] 武藤一雄: "原子核の二種ベ-タ崩壊とニュ-トリノの質量ー核構造の視点からー" 素粒子論研究. 84. 121-151 (1991)
[文献書誌] M. Doi: "Effect of Meson Exchange Current on Deuteron Muon Capture" Nucl. Phys.(North Holland). A511. 507-524 (1990)
[文献書誌] M. Doi: "Muon Capture in Hyperfine States of Muonic Deuterium" Prog. Theor. Phys.(Kyoto). 86. 13-16 (1991)
[文献書誌] N. Odagawa: "Charged Pion Photoproduction on the p‐Shell Nuclei at Low Energy and Roscattering Effect of a Pion" Prog. Theor. Phys.(Kyoto). 86. 1277-1288 (1991)
[文献書誌] 百木悟郎: "Yukawa Type Interaction in Tin Region" Reports of Research Institute of Industry Technology,Nihon University. 35. (1991)
[文献書誌] H.Horiuchi: "Trends in Theoretical Physics Vol.II, Chapt 13" Addison‐Wesley, 72 (1991)
[文献書誌] W.von Oertzen: "Nucleonic Orbitals in the Valence Particle plus Core Model of Nuclear Reactions" Proc.of International Conf.on nuclear and Atomic Clusters 1991,Finland, 11 (1991)

1991 年度 実績報告書

高励起領域に於ける原子核構造とその励起機構

研究代表者

池田 清美 新潟大学, 理学部, 教授 (40011548)

研究成果

[文献書誌] I.Arisaka: "BARYON‐BARYON POTENTIALS IN TERMS OF GAUSSIAN BASIS [I] One Boson Exchange Potential" Few‐Body XIII. 158-159 (1992)

[文献書誌] I.Arisaka: "BARYON‐BERYON POTENTIALS IN TERMS OF GAUSSIAN BASIS [II] The Funabashi Gaussian potential" Few‐Body XIII. 160-161 (1992)

[文献書誌] I.Arisaka: "BARYON‐BARYON POTENTIALS IN TERMS OF GAUSSIAN BASIS [III] The Σ^+P Gausssian potential" Few‐Body XIII. 162-163 (1992)

[文献書誌] T.Suzuki: "Scattering of polarized electons in isoscalar nuclear transitions and the strange anomalous magnetic moment form factor of the nucleon" Nucl.Phys.A515. 609-620 (1990)

[文献書誌] T.Suzuki: "Study of the isoscalar weak neutral current by inelastic υ scattering from ^<12>C and ^<10>B" Phys. Letts.B252. 323-326 (1990)

[文献書誌] T.Suzuki: "Effects of valence nucleon orbits and charge symmetry breaking interaction on the Nolen‐Schiffer anomaly of mirror nuclei" Nucl. Phys.A536. 141-158 (1992)

[文献書誌] K.Tanabe: "Microscopic structure of the superdeformed rotational band in ^<132>Ce" prog. Theor. Phys.83. 1149-1155 (1990)

[文献書誌] K.Tanabe: "Proof of the extended Bloch‐Messiah theorem in the thermal Hartree‐Fock‐Bogoliubov theory" Phys. Letts.B. 247. 202-205 (1990)

[文献書誌] K.Tanabe: "Microscopic properties of the superdeformed rotational states in the light rare‐earth nuclei ^<132>Ce and ^<134,136>Nd" Phys.Letts.B. 259. 12-18 (1991)

[文献書誌] 和田 正信 他: "Baryon‐Baryon Potentials in Terms of Gaussian Basis (I)" XIV International Conference on Few‐Body Problems in Physics. 158-159 (1992)

[文献書誌] 大日方 聡夫 他: "Baryon‐Baryon Potentials in Terms of Gaussian Basis (II)" XIII International Conference on Few‐Body Problems in Physics. 160-161 (1992)

[文献書誌] 中川 公子 他: "Baryon‐Baryon Potentials in Terms of Gaussian Basis (III)" XIII International Conference on Few‐Body Problems in Physics. 162-163 (1992)

[文献書誌] N. Yoshida: "Spin Dependence of Moment of Inertia and IBM" Phys. Lett.B256. 129-133 (1991)

[文献書誌] N. Takigawa: "Interaction Potential and Fusion of a Halo Nucleus" Phys.Lett.B265. 23-28 (1991)

[文献書誌] S. Okabe: "Light Σ‐hypernuclei and α‐clustering" Nucl. Phys.A514. 613-620 (1990)

[文献書誌] Y. Suzuki: "Electromagnetic Dissociation of ^<11>Li and Soft Dipole Mode" Nucl. Phys.A517. 599-614 (1990)

[文献書誌] Y. Suzuki: "The Ground‐state Structure and the Soft Dipole Mode of the He Nucleus" Nucl. Phys.A528. 395-408 (1991)

[文献書誌] Y. Suzuki: "Isobaric Analogue Halo States" Phys. Lett.B272. 173-177 (1991)

[文献書誌] Y. Hashimoto: "A Microscopic Theory of Dissipative Nuclear Collective Motions" Thermal Field Theories. 223-231 (1991)

[文献書誌] H. Kurasawa: "The ω‐Meson Mass and the Nucleon Size in Nuclei" Prog. Theor. Phys.84. 1030-1035 (1990)

[文献書誌] T.Kishimoto: "Perturbation Expansion in Dynamical Nuclear Field Theory and Its Relation with BosonExpansion Theory" Prog. Theor. Phys.84. 470-493 (1990)

[文献書誌] T.Kishimoto: "Exact Relation between Dynamical Nuclear Field Theory and Boson Expansion Theory in a Tamm‐Dancoff‐Boson system" Prog. Theor. Phys.85. 1057-1077 (1991)

[文献書誌] 岸本 照夫: "2体相互作用効果を取り入れたボゾン展開の可能性 ーDNFT法による簡単な模型での考察ー" 素粒子論研究. 84. B36-B40 (1991)

[文献書誌] M.Kamimura: "Non‐adiabatic quantum three‐body calculation of excited‐state muon tranfer" Muon Catalyzed Fusion. 5. 33-42 (1990)

[文献書誌] M. Kamimura: "Coupled rearrangement channel Calculations of muonic molecules and A=3 nuclei" Nucl. Phys.A508. 17-28 (1990)

[文献書誌] Y. Iseri: "Spin‐dependent interactions and polarization observables in elastic scattering of deuteron at intermediate energies" Nucl. Phys.A533. 574-600 (1991)

[文献書誌] H. Sagawa: "Sum Rule Approach for Decoupled Dipole Mode" Phys. Lett.B251. 17-22 (1990)

[文献書誌] T. Hoshino: "Giant Resonances in Light Neutron‐rich Nuclei" Nucl. Phys.A523. 228-246 (1991)

[文献書誌] K. Itonaga: "Polarization in p‐Shell Λ‐Hypernuclear Productions" Proc. 5th Int. Symp. Mesons & Light Nuclei. Praque,1991. Supple Few‐Body Physics.

[文献書誌] K. Itonaga: "Hypernuclear Polarization and Λ‐Spin Polarization in (π^+,K^+) and (K^‐,π^‐) Reactions" Proc. Int. Symp. on Hypernuclear and strange particle Physics,Shimoda,1991.Nucl.Phys.

[文献書誌] T. Harada: "Structure of the Σ Hypernuclear State" Nucl. Phys.A507. 715-730 (1990)

[文献書誌] S. Tadokoro: "Nucleus‐Σ Potential" Phys. Rev.C42. 2591-2596 (1990)

[文献書誌] S. Nakaichi: "Lightest Double‐Λ Hypernucleus" Prog. Theor. Phys.84. 1025-1029 (1990)

[文献書誌] N. Takigawa: "Dynamic polarization potential induced by the Coulomb excitation of deformed heavy ions:Geometric scattering approach" Phys. Rev.C44. 477-484 (1991)

[文献書誌] N. Takigawa: "A geometric approach to strong coupling effects in heavy‐ion collisions Deviation from the Fresnel diffraction pattern" Phys. Letts.B262. 199-204 (1991)

[文献書誌] N. Takigawa: "Interaction potential and fusion of a halo nucleus" Phys. Letts.B265. 23-28 (1991)

[文献書誌] K. Muto: "β^+ Decays of Very proton‐Rich sd‐Shell Nuclei" Phys. Rev.C43. 1487-1490 (1991)

[文献書誌] K. Muto: "A Comparative Study of Double Beta Decay by Shell Model and Οuasiparticle RPA" Z. Phys.A339. 435-444 (1991)

[文献書誌] A. Stsudt: "Nuclear Matrix Elements for Double Positron Emission" Phys. Lett.268B. 312-316 (1991)

[文献書誌] S. Tazaki: "Variation of pairing correlations caused by nuclear rotation" Phys. Rev. C. 43. 596-601 (1991)

[文献書誌] 武藤 一雄: "原子核の二種ベ-タ崩壊とニュ-トリノの質量 ー核構造の視点からー" 素粒子論研究. 84. 121-151 (1991)

[文献書誌] M. Doi: "Effect of Meson Exchange Current on Deuteron Muon Capture" Nucl. Phys.(North Holland). A511. 507-524 (1990)

[文献書誌] M. Doi: "Muon Capture in Hyperfine States of Muonic Deuterium" Prog. Theor. Phys.(Kyoto). 86. 13-16 (1991)

[文献書誌] N. Odagawa: "Charged Pion Photoproduction on the p‐Shell Nuclei at Low Energy and Roscattering Effect of a Pion" Prog. Theor. Phys.(Kyoto). 86. 1277-1288 (1991)

[文献書誌] 百木 悟郎: "Yukawa Type Interaction in Tin Region" Reports of Research Institute of Industry Technology,Nihon University. 35. (1991)

[文献書誌] H.Horiuchi: "Trends in Theoretical Physics Vol.II, Chapt 13" Addison‐Wesley, 72 (1991)

[文献書誌] W.von Oertzen: "Nucleonic Orbitals in the Valence Particle plus Core Model of Nuclear Reactions" Proc.of International Conf.on nuclear and Atomic Clusters 1991,Finland, 11 (1991)

1991 年度実績報告書

池田清美新潟大学, 理学部, 教授 (40011548)

[文献書誌] 和田正信他: "Baryon‐Baryon Potentials in Terms of Gaussian Basis (I)" XIV International Conference on Few‐Body Problems in Physics. 158-159 (1992)

[文献書誌] 大日方聡夫他: "Baryon‐Baryon Potentials in Terms of Gaussian Basis (II)" XIII International Conference on Few‐Body Problems in Physics. 160-161 (1992)

[文献書誌] 中川公子他: "Baryon‐Baryon Potentials in Terms of Gaussian Basis (III)" XIII International Conference on Few‐Body Problems in Physics. 162-163 (1992)

[文献書誌] 岸本照夫: "2体相互作用効果を取り入れたボゾン展開の可能性ーDNFT法による簡単な模型での考察ー" 素粒子論研究. 84. B36-B40 (1991)

[文献書誌] 武藤一雄: "原子核の二種ベ-タ崩壊とニュ-トリノの質量ー核構造の視点からー" 素粒子論研究. 84. 121-151 (1991)

[文献書誌] 百木悟郎: "Yukawa Type Interaction in Tin Region" Reports of Research Institute of Industry Technology,Nihon University. 35. (1991)