1992 Fiscal Year Annual Research Report

核反応による原子核の動的性質の研究

Research Project

Project/Area Number	04302016
Research Institution	Tokyo Metropolitan University
Principal Investigator	久保謙一東京都立大学, 理学部, 教授 (50013389)
Co-Investigator(Kenkyū-buntansha)	斉藤栄名古屋大学, 理学部, 助教授 (40022694) 阿部恭久京都大学, 基礎研, 助教授 (80000868) 河合光路九州大学, 理学部, 教授 (40016027) 梶野敏貴都立大学, 理学部, 助手 (20169444)
Keywords	原子核反応-低、中間、高エネルギー / 軽、重イオン核反応 / スピン偏極 / 核分裂 / 入射核分解過程 / 不安定過程 / 核反応動力学
Research Abstract	全体としては、分担者の各個研究を更に進展させ、個々の問題に現れる動力学の特徴の理解と、普遍性や一般化への可能性を探究した。 1.軽イオン・重イオン核反応の課題においては、研究交流の共通テーマの一つとして、「移動角運動量不整合反応」において、「チャネル結合効果が整合性を回復するダイナミクス」を追及し、論文にまとめた。 2.核反応生成核のスピン巨大偏極の理論的示唆について、更に検討を深め物理的背景を明らかにした。これから更に、「実験的に確かめる」研究協力を行なうと同時に、「巨大偏極の引き起こされる動力学」を更に精度良く系統的に追究する。 3.連続状態への非弾性散乱を、反古典論的に取り扱う試みがなされた。「連続状態励起の機構と動力学」の研究に有効であり、また、将来の具体的課題の一つである。「不安定核入射による原子核反応の研究」に迫るうえでも重要である。 4.核分裂の課題では、「ランジュバンの方法」による理論の形式化を用いた数値計算が可能となり、これから実驗データの解析や理論的予言が行なわれていく。 5.少数核子系反応の課題においては、「不安定核の構造の研究」が更に促進された。一方、QCD有効理論に基づく核力と核子系研究課題も研究成果を上げてきている。

Research Products

(40 results)

All Other

All Publications (40 results)

[Publications] K.I.Kubo: "Exrended DWBA prescription and angular momentum mismatched reactions" Nucl.Phys.A539. 500-510 (1992)
[Publications] Y.Yamamoto: "Anomalous spin Polarization of nucleon-transfer reaction products" Phys.Rev.Lett.68. 2588-2591 (192)
[Publications] T.Kajihara: "The universal phase relation in the left-right asymmetry of (P^^→,a) simultaneous pick up mechanism" Phys.Lett.B285. 5-9 (1992)
[Publications] S.Kubono: "Decay property of ^<20>Na for the onset mechanism of the rapid-proton process" Phys.Rev.C46. 361-367 (1992)
[Publications] Y.Yamanoto: "Theoretical studies of the ^7Li( ^3H,n) ^9Be reaction and primordial nucleosynthesis of ^9Be" Phys.Rev.C47. 846-859 (1993)
[Publications] T.Kajino: "Quantum tunneling of quarks in cosmological quark-hadron phase transition" Jourmal of Applied Physics. (1993)
[Publications] M.Kawai: "Semi-classical approximation to the two-step direct nucleon-nucleus reaction" Phys.Rev.C45. 1856-1862 (1992)
[Publications] M.Kawai: "Semi-classical distored wave approximation for nucleon scattering with continuous energy spectrum." RCNP-P(準弾性散乱の原子核物理学研究会報告). 123. 131-141 (1992)
[Publications] Y.Fukushima: "Nucleon polarization in (dμ) and (tμ) atoms and (dtμ) molecules." Phys.Rev.A46. 6894-6902 (1992)
[Publications] M.R.Harston: "Energy shift in [(dtμ)-d]ee molecule due to the finite size of the muonic molecular ion(drμ)" Phys.Rev.A45. 94-100 (1992)
[Publications] M.R.Harston: "Energy shift in (drμ)e due to the finite size of the muonic molecular ion(drμ)" Z.Phys.D22. 635-640 (1992)
[Publications] Y.Hirabayashi: "Evidence for strong nuclear-breakup contribution to ^6Li ->α+b breakup by ^<208>Pb at forward angles" Phys.Rev.Lett.69. 1892-1895 (1992)
[Publications] Y.Sakuragi: "Sudden approximation for elastic scattering of composite projectiles at intermediate energies" Nucl.Phys.A. (1993)
[Publications] M.Tanifuji: "Invariant-amplitude analyses of deutron-induced reactions at low incident energies" Phys.Lett.B289. 233-237 (1992)
[Publications] Y.Sakuragi: "Sudden approximation for elastic scattering of composite projectiles at intermediate energies" Nucl.Phys.A. (1993)
[Publications] T.Kishimoto: "On a boson expansion method with two-body correlation" Prog.Theor.Phys.88. 35-52 (1992)
[Publications] T.Yamaya: "Spectroscopic factors for α-cluster wave functions in ^<44>Ti observed via the ( ^6Li,d) Reaction." Phys.Rev.C.
[Publications] T.Yamaya: "Alpha-cluster bands in ^<40>Ca observed via the ( ^6Li,d) reaction" Phys.Lett.B.
[Publications] K.Kato: "Analysis of ^9Li+n resonances in ^<10>Li by complex scaling method.---Interaction between ^9Li and neutron.---" Prog.Theor.Phys.89. (1993)
[Publications] C.Beck: "Competition between the function and deep-inelastic orbiting mechanism in the ^<35>Cl+ ^<12>C reactions." Z.Phys.A342. 309-323 (1992)
[Publications] T.Wada: "Multi-dimentional langevin approach to fission dynamics" Nucl.Phys.A538. 283 -290 (1992)
[Publications] D.Boilley: "Nucler fission with a langevin equation" Nucl.Phys.
[Publications] G.Bizard: "Three Fragment sequential decay of heavy nuclei around 3MeV/u excitation energy." Phys.Lett.B276. 413-417 (1992)
[Publications] K.Yuasa-Nakagawa: "Complex fragment distributions ^<84>Kr+ ^<27>Al at E_<lab>=10.6MeV/u." Phys.Lett.B283. 185-188 (1992)
[Publications] C.Beck: "Competition between the fusion-fission and deep-inelastic orbiting mechanism in the ^<35>Cl+ ^<12>C reaction" Z.Phys.A343. 309-323 (1992)
[Publications] K.Sato: "Imaginary part of optical potential for pre-equilibrium process" Proc.of Japan-China Joint Phys.Symp.
[Publications] M.Ichimura: "Extraction of nuclear spin response functions from spin observables of nucleon quasi-free scattering" Phys.Rev.C45. 1822-1831 (1992)
[Publications] M.Ichimura: "Spin observables in charge-exchange nucleon quasi-free Scatterings" Proc.of 6th Franco-Japonese colloq.¨Nuclear Structure and Interdisciplinary Topics.1993¨.
[Publications] M.Ichimura: "Spin observables in quasi-elastic scatterings" RCNP-P. 123. 1-15 (1992)
[Publications] N.Aizawa: "Analysis of the ^3He(K^-,K^+)Hn reaction by the potential quark" Z.Phys.A343. 103-112 (1992)
[Publications] K.Tamura: "Relativistic effects on two-and three-body systems." RCNP Annual Report. (1993)
[Publications] Y.Fujiwara: "Reaction mechanisms in the six-nucleon sysrem with the multiconfiguration resonating-group method" Few-Body Systems. 12. 21-35 (1992)
[Publications] K.Muto: "Proton-neutron quasiparticle RPA with separable Gamow-Teller forces." Z.Phys.A341. 407-415 (1992)
[Publications] S.Nakagawa: "Effective isospin non-conservating interaction and isospin forbidden beta decays in the ls Od shell" Phys.Lett.B297. 1-18 (1992)
[Publications] H.Kitazawa: "Electric and magnetic dipole transitions from broad s-wave resonance in evev-even sd shell nuclei" Phys.Rev.C46. 2364-2374 (1992)
[Publications] T.Otofuji: "Attractive,spin-isospin independent NN potential in the skyrme model" Phys.Rev.D45. 2528-2533 (1992)
[Publications] A.Hayashi: "Pion-nucleon scattering in the soliton model" Suppl.Prog.Theor.Phys.109. 45-72 (1992)
[Publications] A.Hayashi: "New formulation of pion-nucleon scattering and soft pion theorems in the skyrme model" Phys.Rev.D46. 4856-4867 (1992)
[Publications] S.Kubono and T.kajino(eds): "Unstable Nuclei in Astrophysics" World Scientific Publishing Company, 344 (1992)
[Publications] S.Kubono and T.kajino(eds): "Origin and Distribution of the Elements" World Scientific Publishing Company, (1993)

1992 Fiscal Year Annual Research Report

核反応による原子核の動的性質の研究

Principal Investigator

久保 謙一 東京都立大学, 理学部, 教授 (50013389)

Research Products

[Publications] K.I.Kubo: "Exrended DWBA prescription and angular momentum mismatched reactions" Nucl.Phys.A539. 500-510 (1992)

[Publications] Y.Yamamoto: "Anomalous spin Polarization of nucleon-transfer reaction products" Phys.Rev.Lett.68. 2588-2591 (192)

[Publications] T.Kajihara: "The universal phase relation in the left-right asymmetry of (P^^→,a) simultaneous pick up mechanism" Phys.Lett.B285. 5-9 (1992)

[Publications] S.Kubono: "Decay property of ^<20>Na for the onset mechanism of the rapid-proton process" Phys.Rev.C46. 361-367 (1992)

[Publications] Y.Yamanoto: "Theoretical studies of the ^7Li( ^3H,n) ^9Be reaction and primordial nucleosynthesis of ^9Be" Phys.Rev.C47. 846-859 (1993)

[Publications] T.Kajino: "Quantum tunneling of quarks in cosmological quark-hadron phase transition" Jourmal of Applied Physics. (1993)

[Publications] M.Kawai: "Semi-classical approximation to the two-step direct nucleon-nucleus reaction" Phys.Rev.C45. 1856-1862 (1992)

[Publications] M.Kawai: "Semi-classical distored wave approximation for nucleon scattering with continuous energy spectrum." RCNP-P(準弾性散乱の原子核物理学研究会報告). 123. 131-141 (1992)

[Publications] Y.Fukushima: "Nucleon polarization in (dμ) and (tμ) atoms and (dtμ) molecules." Phys.Rev.A46. 6894-6902 (1992)

[Publications] M.R.Harston: "Energy shift in [(dtμ)-d]ee molecule due to the finite size of the muonic molecular ion(drμ)" Phys.Rev.A45. 94-100 (1992)

[Publications] M.R.Harston: "Energy shift in (drμ)e due to the finite size of the muonic molecular ion(drμ)" Z.Phys.D22. 635-640 (1992)

[Publications] Y.Hirabayashi: "Evidence for strong nuclear-breakup contribution to ^6Li ->α+b breakup by ^<208>Pb at forward angles" Phys.Rev.Lett.69. 1892-1895 (1992)

[Publications] Y.Sakuragi: "Sudden approximation for elastic scattering of composite projectiles at intermediate energies" Nucl.Phys.A. (1993)

[Publications] M.Tanifuji: "Invariant-amplitude analyses of deutron-induced reactions at low incident energies" Phys.Lett.B289. 233-237 (1992)

[Publications] Y.Sakuragi: "Sudden approximation for elastic scattering of composite projectiles at intermediate energies" Nucl.Phys.A. (1993)

[Publications] T.Kishimoto: "On a boson expansion method with two-body correlation" Prog.Theor.Phys.88. 35-52 (1992)

[Publications] T.Yamaya: "Spectroscopic factors for α-cluster wave functions in ^<44>Ti observed via the ( ^6Li,d) Reaction." Phys.Rev.C.

[Publications] T.Yamaya: "Alpha-cluster bands in ^<40>Ca observed via the ( ^6Li,d) reaction" Phys.Lett.B.

[Publications] K.Kato: "Analysis of ^9Li+n resonances in ^<10>Li by complex scaling method.---Interaction between ^9Li and neutron.---" Prog.Theor.Phys.89. (1993)

[Publications] C.Beck: "Competition between the function and deep-inelastic orbiting mechanism in the ^<35>Cl+ ^<12>C reactions." Z.Phys.A342. 309-323 (1992)

[Publications] T.Wada: "Multi-dimentional langevin approach to fission dynamics" Nucl.Phys.A538. 283 -290 (1992)

[Publications] D.Boilley: "Nucler fission with a langevin equation" Nucl.Phys.

[Publications] G.Bizard: "Three Fragment sequential decay of heavy nuclei around 3MeV/u excitation energy." Phys.Lett.B276. 413-417 (1992)

[Publications] K.Yuasa-Nakagawa: "Complex fragment distributions ^<84>Kr+ ^<27>Al at E_<lab>=10.6MeV/u." Phys.Lett.B283. 185-188 (1992)

[Publications] C.Beck: "Competition between the fusion-fission and deep-inelastic orbiting mechanism in the ^<35>Cl+ ^<12>C reaction" Z.Phys.A343. 309-323 (1992)

[Publications] K.Sato: "Imaginary part of optical potential for pre-equilibrium process" Proc.of Japan-China Joint Phys.Symp.

[Publications] M.Ichimura: "Extraction of nuclear spin response functions from spin observables of nucleon quasi-free scattering" Phys.Rev.C45. 1822-1831 (1992)

[Publications] M.Ichimura: "Spin observables in charge-exchange nucleon quasi-free Scatterings" Proc.of 6th Franco-Japonese colloq.¨Nuclear Structure and Interdisciplinary Topics.1993¨.

[Publications] M.Ichimura: "Spin observables in quasi-elastic scatterings" RCNP-P. 123. 1-15 (1992)

[Publications] N.Aizawa: "Analysis of the ^3He(K^-,K^+)Hn reaction by the potential quark" Z.Phys.A343. 103-112 (1992)

[Publications] K.Tamura: "Relativistic effects on two-and three-body systems." RCNP Annual Report. (1993)

[Publications] Y.Fujiwara: "Reaction mechanisms in the six-nucleon sysrem with the multiconfiguration resonating-group method" Few-Body Systems. 12. 21-35 (1992)

[Publications] K.Muto: "Proton-neutron quasiparticle RPA with separable Gamow-Teller forces." Z.Phys.A341. 407-415 (1992)

[Publications] S.Nakagawa: "Effective isospin non-conservating interaction and isospin forbidden beta decays in the ls Od shell" Phys.Lett.B297. 1-18 (1992)

[Publications] H.Kitazawa: "Electric and magnetic dipole transitions from broad s-wave resonance in evev-even sd shell nuclei" Phys.Rev.C46. 2364-2374 (1992)

[Publications] T.Otofuji: "Attractive,spin-isospin independent NN potential in the skyrme model" Phys.Rev.D45. 2528-2533 (1992)

[Publications] A.Hayashi: "Pion-nucleon scattering in the soliton model" Suppl.Prog.Theor.Phys.109. 45-72 (1992)

[Publications] A.Hayashi: "New formulation of pion-nucleon scattering and soft pion theorems in the skyrme model" Phys.Rev.D46. 4856-4867 (1992)

[Publications] S.Kubono and T.kajino(eds): "Unstable Nuclei in Astrophysics" World Scientific Publishing Company, 344 (1992)

[Publications] S.Kubono and T.kajino(eds): "Origin and Distribution of the Elements" World Scientific Publishing Company, (1993)

久保謙一東京都立大学, 理学部, 教授 (50013389)