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Nuclear Structure Study of Unstable Naclei by Linear Response Function theory with continuum

Research Project

Project/Area Number 12640284
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionUniversity of aizu

Principal Investigator

SAGAWA Hiroyuki  Univ of aizu, School of Computer Science, Professor, コンピュータ理工学部, 教授 (50178589)

Project Period (FY) 2000 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2003: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2002: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2001: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2000: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsHartree Fock Theory / RDA Theory / Skin Nuclei / EOS / Unstable Nuclei / Pairing correlation / HF理論 / 巨大共鳴 / 魔法数 / ハロー原子核 / Fermi励起 / Gamow Teller励起 / Skyrme相互作用
Research Abstract

We study the following subjects in fiscal year 2003.
1)Isospin Dependence of Giant Resonances and Core Polarization effect
We solved the linear response function in the coordinate space taking into account of the continuum effect in skin nuclei ^<20>C and ^<60>Ca in comparison with stable nuclei ^<12>C and ^<40>Ca. We found out the isospin dependence of giant resonances of isoscalar and isovector modes. The core polarization effect on electric quadrupole transitions of C isotopes is also discussed.
2)Pairing correlation in RPA linear response theory
We take into account the pairing correlation in the RPA linear response theory and apply several open shell nuclei. We pointed out the difference between the positive parity and the negative parity collective low-energy excitations in term of the pairing correlation.
3)Neutron skin, EOS of asymmetric nuclear matter and symmetry energy coefficients
We discussed the relation between three quantities ; neutron skin, EOS of asymmetric nuclear matter and symmetry energy coefficients with Skyrme Hartree-Fock theory and relativistic mean field theory. We pointed out quantitatively how to determine the pressure of neutron matter EOS by using the neutron skin size of finite nuclei.

Report

(5 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] Toshio Suzuki: "Electromagnetic moments and electric dipole transitions in C isotopes"Phys.Rev.C. 68. 014317-1-014317-10 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Toshio Suzuki: "Gamow Teller and Spin Dipole Strength in ^<208>Bi and Mentrime Induced Reactions"Nucl.Phys.A. 718. 446-448 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Sagawa: "New Structure Problems in Drip Line Nuclei"Nucl.Phys.A. 722. 183-189 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Yoshida: "Neutron Skin thickness and EOS in asymmetric nuclear matter"Phys.Rev.C. 69(in press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Toshio Suzuki, Koichi Hagino, H.Sagawa: "Electric magnetic moments and electric dipole transitions in Carbon Isotopes"Phys.Rev.C. 68. 1-10 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Toshio Suzuki, H.Sagawa: "Gamow-Teller and Spin-Dipole Strength in ^<208>_<83>Bi_<125> and Neutrino Induced Reactions"Nucl.Phys.A. 718. 446c-448c (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Sagawa, Toshio Suzuki, Koichi Hagino: "New structure problems in drip line nuclei"Nucl.Phys.A. 722. 183c-189c (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Yoshida, H.Sagawa: "Neutron skin thickness and equation of state in asymmetric nuclear matter"Phys.Rev.C. 69(in press). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Toshio Suzuki: "Electromagnetic moments and electric dipole transitions in C isotopes"Physical Review C. 68. 014317-1-014317-10 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Toshio Suzuki: "Gamow Teller and Spin Dipole Strength in ^<208>Bi and Neutrino Induced Reactions"Nucl.Phys.A. 718. 446-448 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Sagawa: "New Structure Problems in Drip Line Nuclei"Nucl.Phys.A. 722. 183-189 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Yoshida: "Neutron skin thickness and EOS in asymmetric nuclear matter"Phys.Rev.C. 69(in press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Sagawa: "Decoupling and coherence in E1 and E2 moments"Europian Physics Journal. A13. 87-92 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Sagawa: "Neutron Skin and Isospin Structure of Giant Resonances"Phys. Rev.. C65. 064314(1)-06314(7) (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] I.Hamamoto: "New Aspects of Nuclear Structure near Drip Lines"Nuclear Physics News International. Vol.12 No.2. 21-29 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] I.Hamamoto: "Isoscalar dipole strength in ^<208>Pb"Phys. Rev.. C65. 044315(1)-044315(7) (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 佐川弘幸: "量子情報理論"シュプリンガーフェアラーク東京. 250 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Sagawa: "N/Z dependence of Core Polarization charges"Phys.Rev.. C63. 064310-1-064310-9 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Matsuta: "Electromagnetic moments of the β-emitting nucleus ^<16>N"Phys.Rev.Lett.. 86. 3735-3738 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Sagawa: "Giant Multipole States in Stable and Unstable Nuclei"Prog.of Theor.Phys.Supplement. 142. 1-34 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] G.Colo: "Ponticle-vibration coupling and shell structure of exotic nuclei"Nucl.Phys.A. 695. 167-176 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] I.Hamamoto: "Shape, Shell Structure and low-lying strong octupole strength"Phys.Rev.. C64. 024313-1-024313-6 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Hagino: "Continuum QRPA in the coordinate space representation"Nucl.Phys.A. 695. 82-94 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Hamamoto: "Charge exchange spin monopole modes"Phys.Res.. C62. 0243191-6 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Suzuki: "Spin Digole States in ^<208>Bi"Eur.Phys J.A9. A9. 49-53 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Iwasaki: "Lowlying intrudel state in ^<12>Be and the melting of the N=8 shell closure"Phys.Lett.. B491. 8-14 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Sagawa: "New Spin-orbit interactions in skyrme forces"Nucl.Phys.A. A(In Press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Sagawa: "Low energy dipole strength in light dripline nuclei"Phys.Rev. C63. 0343101-8 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Sagawa: "Giant Resonances in Drip Line Noclei"Nucl.Phys.. A(in press). (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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