• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Characteristic properties of complex-scaled many-body continuum states

Research Project

Project/Area Number 17K05430
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHokkaido University

Principal Investigator

Kato Kiyoshi  北海道大学, 理学研究院, 名誉教授 (20109416)

Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords複素座標スケーリング法 / 多体共鳴状態 / 9Be / 仮想状態 / 光分解反応 / 連続状態 / 不安定核 / 共鳴状態 / 多体連続状態 / 非束縛状態 / 光分解断面積 / チャンネル結合 / 原子核 / 複素座標スケーリング
Outline of Final Research Achievements

We constructed a new method to investigate the characteristic properties of nuclear continuous states using the complex scaling method (CSM) that describes the bound states, resonance states and continuous states of each open channel in a nucleus. Using the new method, we have obtained the following results: (1) The virtual state, which could not be described as an isolated state by the CSM usually, can be investigated by analyzing the complex scaled continuous states. (2) It was shown that the scattering/reaction cross section can be analyzed using the resonance states and the density of states (Continuum Level Density) decomposed into various continuous states. (3) The structures of the 1/2+ virtual states, mirror states and the Thomas-Ehrman effect in A = 9 (9Be, 9B) nuclei were investigated.

Academic Significance and Societal Importance of the Research Achievements

近年、不安定核物理の研究の進展によって、ドリップ・ラインと呼ばれる核子放出限界近傍の弱束縛原子核の性質が調べられ、安定核領域から離れた不安定核の性質は安定核と大きく異なることが分かってきた。弱束縛系は僅かなエネルギーで分解し非束縛状態になることから、束縛状態と連続状態の結合が重要になると考えられ、不安定核の理論的研究にとって、束縛状態と同時に非束縛状態である連続状態を記述することが出来る新たな枠組みが必要不可欠になってきている。このような新たな枠組みとして、複素座標スケーリング法を用いた多体連続状態を記述する方法の研究は、不安定核物理の解明と理解にとって重要な役割を果たすと期待される。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (41 results)

All 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (15 results) Journal Article (11 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 11 results,  Open Access: 8 results) Presentation (13 results) (of which Int'l Joint Research: 7 results,  Invited: 2 results) Remarks (2 results)

  • [Int'l Joint Research] National University of Mongolia(モンゴル)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Al-Farabi Kazakh National University(カザフスタン)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Bogolyubov Inst. for Theor. Phys.(ウクライナ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] モンゴル国立大学(モンゴル)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Al-Farabi カザフ国立大学(カザフスタン)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ボゴリューボフ理論物理学研究 所(ウクライナ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] モンゴル国立大学(モンゴル)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Al-Farabi カザフ国立大学(カザフスタン)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ボゴリューボフ理論物理学研究所(ウクライナ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] モンゴル国立大学(モンゴル)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Al-Farabi カザフ国立大学(カザフスタン)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] ボゴリューボフ理論物理学研究所(ウクライナ)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] モンゴル国立大学(モンゴル)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Al-Farabi カザフ国立大学(カザフスタン)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ボゴリューボフ理論物理学研究所(ウクライナ)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Five-body resonances in 8He and 8C using the complex scaling method2021

    • Author(s)
      Myo Takayuki, Odsuren Myagmarjav, Kato Kiyoshi
    • Journal Title

      Physical Review C

      Volume: 104 Issue: 4 Pages: 044306-044306

    • DOI

      10.1103/physrevc.104.044306

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Decomposition of scattering phase shifts of coupled-channels systems in the complex scaling method2021

    • Author(s)
      Odsuren Myagmarjav, Myo Takayuki, Kikuchi Yuma, Teshigawara Manabu, Kato Kiyoshi
    • Journal Title

      Physical Review C

      Volume: 104 Issue: 1 Pages: 014325-014325

    • DOI

      10.1103/physrevc.104.014325

    • NAID

      120007145341

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Complex scaling: Physics of unbound light nuclei and perspective2020

    • Author(s)
      Takayuki Myo and Kiyoshi Kato
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 12A101 Issue: 12 Pages: 1-36

    • DOI

      10.1093/ptep/ptaa101

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of the Coulomb interaction on parameters of resonance states in mirror three-cluster nuclei2020

    • Author(s)
      A.D.Duisenbay, N.Kalzhigitov, K.Kato, V.O.Kurmangaliyeva, N.Takibayev, V.S.Vasilevsky
    • Journal Title

      Nuclear Physics A

      Volume: 996 Pages: 121692-121692

    • DOI

      10.1016/j.nuclphysa.2020.121692

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Photodisintegration cross sections for resonant states and virtual states2019

    • Author(s)
      Myagmarjav Odsuren, Yuma Kikuchi, Takayuki Myo, Hiroshi Masui and Kiyoshi Kato
    • Journal Title

      Physical Review C

      Volume: 99 Issue: 3 Pages: 0343121-6

    • DOI

      10.1103/physrevc.99.034312

    • NAID

      120006603708

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Systematic investigation of the Hoyle-analog states in light nuclei2018

    • Author(s)
      V. S. Vasilevs, K. Kato and N. Takibayev
    • Journal Title

      PHYSICAL REVIEW C

      Volume: 98 Issue: 2

    • DOI

      10.1103/physrevc.98.024325

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Analysis of a Virtual State Using the Complex Scaling Method2018

    • Author(s)
      Myagmarjav Odsuren, Takayuki Myo, Gonchigdorj Khuukhenkhuu, Hiroshi Masui, and Kiyoshi Kato
    • Journal Title

      Acta Physica Polonica B

      Volume: 49 Issue: 3 Pages: 319-319

    • DOI

      10.5506/aphyspolb.49.319

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Virtual states in the complex scaling method2018

    • Author(s)
      Kiyoshi Kato, Myagmarjav Odsuren, Takayuki Myo, Hiroshi Masui, and Yuma Kikuchi
    • Journal Title

      AIP Conference Proceedings

      Volume: 2038 Pages: 020023-020023

    • DOI

      10.1063/1.5078842

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Hoyle-analog states in light nuclei2018

    • Author(s)
      V. S. Vasilevsky, K. Kato, and N. Takibayev
    • Journal Title

      AIP Conference Proceedings

      Volume: 2038 Pages: 020022-020022

    • DOI

      10.1063/1.5078841

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Virtual-state character of the two-body system in the complex scaling method2017

    • Author(s)
      Myagmarjav Odsuren, Yuma Kikuchi, Takayuki Myo, Gonchigdorj Khuukhenkhuu, Hiroshi Masui, and Kiyoshi Kato
    • Journal Title

      Physical Review C

      Volume: 95 Issue: 6 Pages: 064305-064305

    • DOI

      10.1103/physrevc.95.064305

    • NAID

      120006333804

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Formation and decay of resonance states in 9Be and 9B nuclei: Microscopic three-cluster model investigations2017

    • Author(s)
      V. S. Vasilevsky, K. Kato and N. Zh. Takibayev
    • Journal Title

      Physical Review C

      Volume: 96 Issue: 3

    • DOI

      10.1103/physrevc.96.034322

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 複素座標スケーリング法を用いたグリーン関数のスペクトル表示2019

    • Author(s)
      加藤幾芳、Myagmarjav Odsuren、菊地右馬、明 孝之
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Scattering Problems of Two-Body Systems2019

    • Author(s)
      M. Odsuren, G. Khuukhenkhuu, A.T. Sarsembayeva, S. Davaa, Usukhbayar, .Zolbayar, K. Kato
    • Organizer
      Postponement of "The 10th AASPP workshop on Nuclear Reaction Database Development
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analysis of the 16O(p, pn)15O reaction using the CDCC method2019

    • Author(s)
      Dagvadorj ICHINKHORLOO, Masayuki AIKAWA, Satoshi CHIBA, Yoshiharu HIRABAYASHI, and Kiyoshi KATO
    • Organizer
      13th International Conference on Nucleus-Nucleus Collisions
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 強度関数と連続状態の構造2018

    • Author(s)
      加藤幾芳、Myagmarjav Odsuren, 菊地右馬、升井洋志、明孝之
    • Organizer
      日本物理学会 2018年春季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Resonances and Non-Hermitian Quantum Mechanics2018

    • Author(s)
      Kiyoshi Kato, Myagmarjav Odsurenm, Yuma Kikuchi, Hiroshi Masui and Takayuki Myo
    • Organizer
      The International Scientific Conference Dedicated to the 80th Anniversary of Academician of the NAS RK Abdildin Merirkhan Mubarakovich (Aip. 12-15, Almaty)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Virtual States in the Complex Scaling Method2018

    • Author(s)
      Kiyoshi Kato
    • Organizer
      Fourth International Workshop on State of the Art in Nuclear Cluster Physics (May 13-18, Galveston)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] The Hoyle^Analoug States in Light Nuclei2018

    • Author(s)
      V.S. Vasilevsky, K. Kato and N. Takibayev
    • Organizer
      Fourth International Workshop on State of the Art in Nuclear Cluster Physics (May 13-18, Galveston)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 連続状態にけるクラスター物理2018

    • Author(s)
      加藤幾芳
    • Organizer
      基研研究会 『Threshold Rule 50』 (10月3-5日)
    • Related Report
      2018 Research-status Report
  • [Presentation] The first 1/2+ state and photo-disintegration cross sections of 9Be2018

    • Author(s)
      Kiyoshi Kato
    • Organizer
      The international workshop on Nuclear Cluster Physics (WNCP2018) (Nov.9-13)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 強度関数と連続状態の構造2018

    • Author(s)
      加藤幾芳, Myagmarjav Odsuren, 菊地右馬, 升井洋志, 明 孝之
    • Organizer
      日本物理学会 2018年春季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 9Be核における仮想状態2017

    • Author(s)
      加藤幾芳、菊地右馬、明 孝之、M.Odsuren、V. Vasilevsky、N.Takibayev
    • Organizer
      日本物理学会 2017年春季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 9Be、9B核のα+α+N 3体クラスター共鳴構造2017

    • Author(s)
      M.Odsuren, 菊地右馬, 升井洋志, 明 孝之, 加藤幾芳, V. Vasilevsky, N.Takibayev
    • Organizer
      RCNP研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] Complex Scaling Method and Astrophysical Nuclear Reactions2017

    • Author(s)
      Kiyoshi Kato
    • Organizer
      the V-th International Conference on Cosmology, Relativistic and Nuclear Astrophysics ( ICCRNA 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Remarks] 北海道大学学術成果コレクション(HUSCAP)

    • URL

      https://eprints.lib.hokudai.ac.jp/statistics/statslist.php?statsurl=02idr0jab70uj2e

    • Related Report
      2020 Research-status Report
  • [Remarks] HUSCAP

    • URL

      http://hdl.handle.net/2115/67294

    • Related Report
      2018 Research-status Report 2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi