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Role of non-central interactions in neutron-rich nuclei

Research Project

Project/Area Number 19740124
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionThe University of Tokyo

Principal Investigator

ITAGAKI Naoyuki  The University of Tokyo, 基礎物理学研究所, 准教授 (70322659)

Project Period (FY) 2007 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,020,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥720,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥900,000 (Direct Cost: ¥900,000)
Keywords中性子過剰核 / 原子核構造 / クラスター・シェル競合 / 非中心力 / ガス的クラスター状態 / 時間に依存したハートリー・フォック理論 / 荷電平衡反応 / 超重核合成 / 群論的核構造模型 / EO遷移強度 / 多核子相関 / クラスター構造 / 中性子-中性子相関 / テンソル相関 / クラスター模型
Research Abstract

In nuclear systems, it has been known that two non-central interaction, namely spin-orbit and tensor interactions, strongly act. The competition between their contributions plays an essential role in the structure change of nuclei as functions of excitation energy and proton/neutron numbers. In the present study, we proposed new models to discuss it and also combined conventional nuclear structure/reaction models and shown that, in the excited states of neutron-rich nuclei, a new structure, geometric configurations of clusters stabilized by neutrons, appears.

Report

(6 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report   Self-evaluation Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (60 results)

All 2011 2010 2009 2008 2007 Other

All Journal Article (42 results) (of which Peer Reviewed: 42 results) Presentation (18 results)

  • [Journal Article] Symplectic structure and monopole strength in 12C2011

    • Author(s)
      T.Yoshida, N.Itagaki, K.Kato
    • Journal Title

      Phys.Rev.C 83 024301

      Pages: 1-8

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simplified modeling of cluster-shell competition in ^<20>Ne and ^<24>Mg2011

    • Author(s)
      N.Itagaki, M.Ploszajczak, J.Cseh
    • Journal Title

      Phys.Rev.C 83 014302

      Pages: 1-12

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simplified modeling of cluster-shell competition in ^<20>Ne and ^<24>Mg2011

    • Author(s)
      N.Itagaki, M.Ploszajczak, J.Cseh
    • Journal Title

      Physical Review C

      Volume: 83

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Symplectic structure and monopole strength in ^<12>C2011

    • Author(s)
      T.Yoshida, N.Itagaki K.Kato
    • Journal Title

      Physical Review C

      Volume: 83

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-alpha state around ^<40>Ca2010

    • Author(s)
      N.Itagaki, Tz.Kokalova, W.von Oertzen
    • Journal Title

      Phys.Rev.C 82 014312

      Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Suppression of Charge Equilibration leading to the Synthesis of Exotic Nuclei2010

    • Author(s)
      Yoritaka Iwata, Takaharu Otsuka, Joachim A.Maruhn, Naoyuki Itagaki
    • Journal Title

      Phys.Rev.Lett. 104 252501

      Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Microscopic study of the triple-alpha reaction2010

    • Author(s)
      A.S.Umar, J.A.Maruhn, N.Itagaki, V.E.Oberacker
    • Journal Title

      Phys.Rev.Lett. 104 212503

      Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Geometric classification of nucleon transfer at intermediate energies2010

    • Author(s)
      Yoritaka Iwata, Takaharu Otsuka, Joachim A.Maruhn, Naoyuki Itagaki
    • Journal Title

      Nucl.Phys.A 836

      Pages: 108-118

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Linear-chain structure of three clusters in ^<16>C and ^<20>C2010

    • Author(s)
      J.A.Maruhn, N.Loebl, N.Itagaki, M.Kimura
    • Journal Title

      Nucl.Phys.A 833

      Pages: 1-17

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Geometric classification of nucleon transfer at intermediate energies2010

    • Author(s)
      Yoritaka Iwata, Takaharu Otsuka, Joachim A.Maruhn, Naoyuki Itagaki
    • Journal Title

      Nuclear Physics A

      Volume: 836 Pages: 808-818

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microscopic study of the triple-alpha reaction2010

    • Author(s)
      A.S.Umar, J.A.Maruhn, N.Itagaki, V.E.Oberacker
    • Journal Title

      Physical Review Letters

      Volume: 104

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suppression of Charge Equilibration leading to the Synthesis of Exotic Nuclei2010

    • Author(s)
      Yoritaka Iwata, Takaharu Otsuka, Joachim A.Maruhn, Naoyuki Itagaki
    • Journal Title

      Physical Review Letters

      Volume: 104

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-alpha state around ^<40>Ca2010

    • Author(s)
      N.Itagaki, Tz.Kokalova, W.von Oertzen
    • Journal Title

      Physical Review C

      Volume: 82

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Geometric classification of nucleon transfer at moderate low energies2010

    • Author(s)
      Y.Iwata, T.Otsuka, J.A.Maruhn, N.Itagaki
    • Journal Title

      Nuclear Physics A 836

      Pages: 108-118

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Linear-chain structure of three α-clusters in ^<16>C and ^<20>C2010

    • Author(s)
      J.A.Maruhn, N.Loebl, N.Itagakib, M.Kimura
    • Journal Title

      Nuclear Physics A 833

      Pages: 1-17

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Di-neutron correlations in ^<7>2009

    • Author(s)
      H, S.Aoyama, N.Itagaki
    • Journal Title

      Phys.Rev.C 80 rapid communication 021304

      Pages: 1-5

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis of exotic nuclei in heavy-ion collisions at higher energies2009

    • Author(s)
      Y.Iwata, T.Otsuka, J.A.Maruhn, N.Itagaki
    • Journal Title

      Eur.Phys.J.A 42

      Pages: 613-621

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Cluster structure stabilized by s2 neutrons in light neutron-rich nuclei2009

    • Author(s)
      N.Itagaki, M.Kimura
    • Journal Title

      Phys.Rev.C 79 034312

      Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Appearance of cluster states in 13C2009

    • Author(s)
      T.Yoshida, N.Itagaki, T.Otsuka
    • Journal Title

      Phys.Rev.C 79 034308

      Pages: 1-6

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] 中性子のもたらず"糊"の効果とαクラスターの結合機構2009

    • Author(s)
      板垣直之、J.A. Maruhn、木村真明
    • Journal Title

      日本物理学会誌「最近の研究から」

      Pages: 840-845

    • Related Report
      2009 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Cluster structure stabilized by s2 neutrons in light neutron-rich nuclei2009

    • Author(s)
      N. Itagaki, M. Kimura
    • Journal Title

      Phys. Rev. C 79

      Pages: 343121-4

    • Related Report
      2009 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Synthesis of exotic nuclei in heavy-ion collisions at higher energies2009

    • Author(s)
      Y.Iwata, T.Otsuka, J.A.Maruhn, N.Itagaki
    • Journal Title

      European Physics Journal A 42-3

      Pages: 613-621

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Di-neutron correlation in ^7H2009

    • Author(s)
      S.Aoyama, N.Itagaki
    • Journal Title

      Physical Review C 80

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 中性子の果たす"糊"の効果とαクラスターの結合形態2009

    • Author(s)
      板垣直之、Joachim A.Maruhn、木村真明
    • Journal Title

      日本物理学会誌(最近の研究から) 11月号

      Pages: 840-844

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Appearance of cluster states in ^<13>C2009

    • Author(s)
      T. Yoshida, N. Itagaki, and T. Otsuka
    • Journal Title

      Physical Review C 79

      Pages: 0343081-6

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cluster structure stabilized by s^2 neutrons in light neutron-rich nuc lei2009

    • Author(s)
      N. Itagaki and M. Kimura
    • Journal Title

      Physical Review C 79

      Pages: 0343121-4

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mixing of di-neutron components in 8He2008

    • Author(s)
      N.Itagaki, M.Ito, K.Arai, S.Aoyama, Tz.Kokalova
    • Journal Title

      Phys.Rev.C 78 017306

      Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Covalent isomeric-state in 12Be induced by two neutron transfers2008

    • Author(s)
      M.Ito, N.Itagaki
    • Journal Title

      Phys.Rev.C 78 011602 rapid communication

      Pages: 1-5

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Coexistence of alpha+alpha+n+n and alpha+t+t cluster structures in ^<10>Be2008

    • Author(s)
      N.Itagaki, M.Ito, M.Milin, T.Hashimoto, H.Ishiyama, H.Miyatake
    • Journal Title

      Phys.Rev.C 77 067301

      Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Coexistence of Covalent Superdeformation and Molecular Resonances in an unbound region of ^<12>Be2008

    • Author(s)
      M.Ito, N.Itagaki, H, Sakurai, K.Ikeda
    • Journal Title

      Phys.Rev.Lett. 100 182502

      Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Coupling between alpha-condensed states and normal cluster states2008

    • Author(s)
      N.Itagaki, Tz.Kokalova, M.Ito, M.Kimura, W.von Oertzen
    • Journal Title

      Phys.Rev.C 77 037301

      Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Coupling between alpha-condensed states and normal cluster states2008

    • Author(s)
      N. Itagaki, Tz. Kokalova, M. Ito, M. Kimura, W. von Oertzen
    • Journal Title

      Phys. Rev. C 77

      Pages: 373011-4

    • Related Report
      2009 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Coexistence of alpha+alpha+n+n and alpha+t+t cluster structures in ^<10>Be2008

    • Author(s)
      N. Itagaki, M. Ito, M. Milin, T. Hashimoto, H. Ishiyama, H. Mi yatake
    • Journal Title

      Physical Review C 77

      Pages: 0673011-4

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Covalent isomeric-state in ^<12>Be induced by two neutron transfers2008

    • Author(s)
      M. Ito and N. Itagaki
    • Journal Title

      Physical Review C 78

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mixing of di-neutron components in ^8He2008

    • Author(s)
      N. Itagaki, M. Ito, K. Arai, S. Aoyama and Tz. Kokalova
    • Journal Title

      Physical Review C 78

      Pages: 0173061-4

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coexistence of covalent superdeformation and molecular resonances in an unbound region of 12Be2008

    • Author(s)
      M. Ito, N. Itagaki, H, Sakurai and K. Ikeda
    • Journal Title

      Physical Review letters (印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coupling between alpha-condensed states and normal cluster states2008

    • Author(s)
      N. Itagaki, Tz. Kokalova, M. Ito, M. Kimura, and W. von Oertzen
    • Journal Title

      Physical Review C77

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simplified modeling of cluster-shell competition in carbon isotopes2007

    • Author(s)
      H.Masui, N.Itagaki
    • Journal Title

      Phys.Rev.C 75 054309

      Pages: 1-5

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] alpha-condensed state with core nucleus2007

    • Author(s)
      N.Itagaki, M.Kimura, C.Kurokawa, M.Ito, W.von Oertzen
    • Journal Title

      Phys.Rev.C 75 037303

      Pages: 1-4

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] alpha-condensed state with core nucleus2007

    • Author(s)
      N. Itagaki, M. Kimura, C. Kurokawa, M. Ito, and W. von Oertzen
    • Journal Title

      Physical Review C75

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simplified modeling of cluster-shell competition in carbon isotopes2007

    • Author(s)
      H. Masui and N. Itagaki
    • Journal Title

      Physical Review C75

      Pages: 54309-54309

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gas-like state of alpha clusters around^<16>O core in^<24>Mg

    • Author(s)
      T.Ichikawa, N.Itagaki, T.Kawabata, Tz.Kokalova, W von Oertzen
    • Journal Title

      Phys.Rev.C rapid communication印刷中

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Presentation] Geometric and gas-like cluster structure in light nuclei2010

    • Author(s)
      N.Itagaki
    • Organizer
      A mini Workshop on Nuclear Symmetry Energy and KoRIA
    • Place of Presentation
      韓国Yonsei大学、大韓民国
    • Year and Date
      2010-10-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] 3 alpha cluster state around ^<40>Ca2010

    • Author(s)
      N.Itagaki
    • Organizer
      2nd Workshop on State of the Art in Nuclear Cluster Physic
    • Place of Presentation
      ブリュッセル自由大学、ベルギー
    • Year and Date
      2010-05-28
    • Related Report
      2010 Annual Research Report
  • [Presentation] コア核の周りでのクラスター状態2010

    • Author(s)
      板垣直之
    • Organizer
      日本物理学会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-20
    • Related Report
      2010 Final Research Report 2009 Self-evaluation Report
  • [Presentation] コア核の周りでのクラスター状熊2010

    • Author(s)
      板垣直之
    • Organizer
      日本物理学会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] Nuclear structure studies in JUSTIPEN and EFES activities2009

    • Author(s)
      板垣直之
    • Organizer
      日本物理学会(アメリカ物理学会と共催)
    • Place of Presentation
      ハワイ
    • Year and Date
      2009-10-13
    • Related Report
      2010 Final Research Report 2009 Self-evaluation Report
  • [Presentation] Nuclear structure studies in JUSTIPEN and EFES activities2009

    • Author(s)
      板垣直之
    • Organizer
      日本物理学会(アメリカ物理学会と共催)
    • Place of Presentation
      アメリカ・ハワイ島
    • Year and Date
      2009-10-13
    • Related Report
      2009 Annual Research Report
  • [Presentation] 中性子過剰核の高励起状態における新奇な構造2009

    • Author(s)
      板垣直之
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] Cluster-like correlations in light nuclei2009

    • Author(s)
      Naoyuki Itagaki
    • Organizer
      The 3^<rd> LACM-EFES-JUSTIPEN workshop
    • Place of Presentation
      オークリッジ国立研究所(アメリカ)
    • Year and Date
      2009-02-23
    • Related Report
      2008 Annual Research Report
  • [Presentation] Multi-cluster studies with UCOM-like treatment2009

    • Author(s)
      Naoyuki Itagaki
    • Organizer
      First EMMI-EFES workshop on neutron-rich nuclei
    • Place of Presentation
      GSI研究所(ドイツ)
    • Year and Date
      2009-02-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] 中性子のもたらず"糊"の効果とαクラスターの結合機構2009

    • Author(s)
      板垣直之、J.A.Maruhn、木村真明
    • Organizer
      日本物理学会誌「最近の研究から」
    • Place of Presentation
      840-845
    • Related Report
      2010 Final Research Report
  • [Presentation] ^<10>Beにおけるα+t+t状態2008

    • Author(s)
      板垣直之
    • Organizer
      日本物理学会2008年秋季大会
    • Place of Presentation
      山形大学
    • Year and Date
      2008-09-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] アルファ凝縮状態と通常のクラスター状態の結合2008

    • Author(s)
      板垣直之、伊藤誠
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] Alpha+t+t structure in 10Be2008

    • Author(s)
      板垣直之
    • Organizer
      Structure and reaction of high-lying molecular states of light nuclei
    • Place of Presentation
      RIKEN Wako. Japan
    • Year and Date
      2008-03-19
    • Related Report
      2007 Annual Research Report
  • [Presentation] Interplay between the cluster and shell correlations2007

    • Author(s)
      板垣直之
    • Organizer
      Workshop at the INT Fall-07 Program on Correlations in Nuclei: From Di-nucleons to Clusters
    • Place of Presentation
      INT, Seattle, USA
    • Year and Date
      2007-11-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] Clustering and excess neutrons2007

    • Author(s)
      板垣 直之
    • Organizer
      Third Japanese-German workshop on Nuclear Structure and Astrophysics
    • Place of Presentation
      Chiemsee, Germany
    • Year and Date
      2007-10-02
    • Related Report
      2007 Annual Research Report
  • [Presentation] Solid, liquid, and gas structure of light nuclei2007

    • Author(s)
      板垣 直之
    • Organizer
      Cluster 07
    • Place of Presentation
      Stratford upon Avon, UK
    • Year and Date
      2007-09-03
    • Related Report
      2007 Annual Research Report
  • [Presentation] Exotic Cluster Structure in Light Neutron-Rich Nuclei2007

    • Author(s)
      板垣 直之
    • Organizer
      Hahn-Meiter-Institut Festkolloquium
    • Place of Presentation
      Berlin, Germany
    • Year and Date
      2007-08-31
    • Related Report
      2007 Annual Research Report
  • [Presentation] Solid, liquid, and gas structure of light nuclei2007

    • Author(s)
      板垣 直之
    • Organizer
      International Nuclear Physics Conference (INPC)
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2007-06-04
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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