Properties and mechanism of molecule-like states in oxygen and neon isotopes, and application to the nucleosynthesis

• Project/Area Number: 22740135
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Hokkaido University
• Principal Investigator: KIMURA Masaaki 北海道大学, 理学研究院, 准教授 (50402813)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 原子核構造 / 不安定核 / クラスター / 元素合成 / 原子核理論 / 分子軌道 / 理論核物理 / クラスター構造

Research Abstract

Based on the analysis by a cluster model, we have shown the existence of multiple molecular-orbit states in ＾（21）Ne. We also predicted that the excitation energies of the molecular-orbit states will be greatly reduced in the vicinity of the neutron-dripline. It was also found the multiple shape coexistence in the vicinity of the neutron-rich N=28 nuclei.

Research Products

• [Journal Article] Prolate, oblate, and triaxial shape coexistence, and the lost magicity of N=28 in ^<43>S (2013)
  • Author(s): M.Kimura, Y.Taniguchi, Y.Kanada-Enyo, H.Horiuchi, K.Ikeda
  • Journal Title: Physical Review C87 Volume: 011301 Pages: 1-4
  • Peer Reviewed
• [Journal Article] Prolate, oblate, and triaxial shape coexistence, and the lost magicity of N=28 in 43S (2013)
  • Author(s): M.Kimura, Y.Taniguchi, Y.Kanada-Enyo, H.Horiuchi, K.Ikeda
  • Journal Title: Physical Review C Volume: 87 Issue: 1
  • DOI: 10.1103/physrevc.87.011301
  • Peer Reviewed
• [Journal Article] Splitting of the p orbit in triaxially deformed 25 ΛMg (2013)
  • Author(s): Masahiro Isaka
  • Journal Title: Physical Review C Volume: 87 Issue: 2
  • DOI: 10.1103/physrevc.87.021304
  • Peer Reviewed
• [Journal Article] Deformation of Ne isotopes in the region of the island of inversion (2012)
  • Author(s): T.Sumi, K.Minomo, S.Tagami, M.Kimura, T.Matsumoto, K.Ogata, Y.R.Shimizu, M.Yahiro
  • Journal Title: Phys.Rev. C 85 Volume: 064613 Pages: 1-14
  • Peer Reviewed
• [Journal Article] Excitation and Structure Change of 24Mg. I - Triaxial Deformed Mean Field in Low-Lying States (2012)
  • Author(s): M.Kimura, R.Yoshida, M.Isaka
  • Journal Title: Progress of Theoretical Physics Volume: 127 Pages: 287-299
  • NAID: 110009418653
  • Peer Reviewed
• [Journal Article] Determination of the Structure of 31Ne by a Fully Microscopic Framework (2012)
  • Author(s): K.Minomo, T.Sumi, M.Kimura, K.Ogata, Y.R.Shimizu, M.Yahiro
  • Journal Title: Physical Review Letters 108 Volume: 052503 Pages: 1-4
  • Peer Reviewed
• [Journal Article] Deformation of Ne isotopes in the region of island of inversion (2012)
  • Author(s): T. Sumi, K. Minomo., et al.
  • Journal Title: Physical Review C Volume: 85 Issue: 6
  • DOI: 10.1103/physrevc.85.064613
  • Peer Reviewed
• [Journal Article] Deformation Effect on Total Reaction Cross Sections for Neutron-Rich Ne-Isotopes (2012)
  • Author(s): K.Minomo, S.Watanabe, T.Sumi, M.Kimura, K.Ogata, Y.R.Shimizu, M.Yahiro
  • Journal Title: Progress of Theoretical Physcs Supplement Volume: 196 Pages: 358-263
  • DOI: 10.1143/ptps.196.358
  • NAID: 110009543697
• [Journal Article] Determination of the structure of ^<31>Ne within fullmicroscopic framework (2012)
  • Author(s): K. Minomo, T. Sumi, M. Kimura, K. Ogata, Y. R. Shimizu, and M. Yahiro
  • Journal Title: Physical Review Letter Volume: 108:5 Issue: 5 Pages: 0525031-4
  • DOI: 10.1103/physrevlett.108.052503
  • Peer Reviewed
• [Journal Article] Clustering Aspects of Highly Excited States and Neutron-Rich Nuclei (2012)
  • Author(s): M.Kimura, N.Furutachi, Y.Taniguchi, Y.Kanada-Enyo, H.Horiuchi
  • Journal Title: Progress of Theoretical Physcs Supplement Volume: 196 Pages: 176-184
  • DOI: 10.1143/ptps.196.176
  • NAID: 110009543670
• [Journal Article] Excitation and Structure Change of 24Mg.I-Triaxial Deformed Mean Field in Low-Lying Stales- (2012)
  • Author(s): Masaaki Kimura
  • Journal Title: Progress of Theoretical Physics Volume: 127 Issue: 2 Pages: 287-301
  • DOI: 10.1143/ptp.127.287
  • NAID: 110009418653
  • Peer Reviewed
• [Journal Article] Modification of triaxial deformation and change of spectrum in 25ΛMg caused by the Λ hyperon (2012)
  • Author(s): Masahiro Isaka
  • Journal Title: Physical Review C Volume: 85 Issue: 3 Pages: 0343031-8
  • DOI: 10.1103/physrevc.85.034303
  • Peer Reviewed
• [Journal Article] Molecule-like structure with covalent neutrons of F isotopes toward the neutron drip line (2011)
  • Author(s): M.Kimura, N.Furutachi
  • Journal Title: Physical Review C83 Volume: 044304 Pages: 1-7
  • Peer Reviewed
• [Journal Article] Bent three-α linear-chain structure of ^<13>C (2011)
  • Author(s): N.Furutachi, M.Kimura
  • Journal Title: Physical Review C83 Volume: 021303 Pages: 1-5
  • Peer Reviewed
• [Journal Article] Bent three-α linear-chain structure of 13C (2011)
  • Author(s): N.Furutachi, M.Kimura
  • Journal Title: Physical Review C Volume: 83 Issue: 2 Pages: 0213031-5
  • DOI: 10.1103/physrevc.83.021303
  • Peer Reviewed
• [Journal Article] Deformation of hypernuclei studied with antisymmetrized molecular dynamics (2011)
  • Author(s): Masahiro Isaka
  • Journal Title: Physical Review C Volume: 83 Issue: 4 Pages: 0443231-6
  • DOI: 10.1103/physrevc.83.044323
  • Peer Reviewed
• [Journal Article] Shell and cluster states of 21ΛNe studied with antisymmetrized molecular dynamics (2011)
  • Author(s): Masahiro Isaka
  • Journal Title: Physical Review C Volume: 83 Issue: 5 Pages: 0543041-8
  • DOI: 10.1103/physrevc.83.054304
  • Peer Reviewed
• [Journal Article] Molecule-like structure with covalent neutrons of F isotopes toward the neutron drip line (2011)
  • Author(s): M.Kimura, N.Furutachi
  • Journal Title: Physical Review C Volume: 83 Issue: 4 Pages: 0443041-8
  • DOI: 10.1103/physrevc.83.044304
  • Peer Reviewed
• [Journal Article] Level structure and production cross section of Ξ12 Be studied with coupled-channels antisymmetrized molecular dynamics (2011)
  • Author(s): H.Matsumiya, K.Tsubakihara, M.Kimura, A.Dote, A.Ohnishi
  • Journal Title: Physical Review Volume: C83 Pages: 24312-24312
  • Peer Reviewed
• [Journal Article] Bent three-alpha linear-chain structure of 13C (2011)
  • Author(s): N.Furutachi, M.Kimura
  • Journal Title: Physical Review Volume: C83 Pages: 21303-21303
  • Peer Reviewed
• [Journal Article] Molecule-like structure with covalent neutrons of F isotopes toward neutron-drip line (2011)
  • Author(s): M.Kimura, N.Furutachi
  • Journal Title: Physical Review Volume: C83 Pages: 44304-44304
  • Peer Reviewed
• [Journal Article] Triaxial superdeformation in 40Ar (2010)
  • Author(s): Y.Taniguchi, Y.Kanada-En'yo, M.Kimura, K.Ikeda, H.Horiuchi
  • Journal Title: Physical Review Volume: C82 Pages: 11302-11302
  • Peer Reviewed
• [Journal Article] Linear-chain structure of three α-clusters in ^<16>C and ^<20>C (2010)
  • Author(s): J.A.Maruhn, N.Loebl, N.Itagaki, M.Kimura
  • Journal Title: Nuclear Physics Volume: A833 Pages: 1-10
  • Peer Reviewed
• [Journal Article] Alpha cluster states and molecular orbitals in sd-shell nuclei (2010)
  • Author(s): M.Kimura, N.Furutachi, Y.Kanada-En'yo
  • Journal Title: Nuclear Physics Volume: A834
• [Journal Article] Cluster aspects of light unstable nuclei (2010)
  • Author(s): Y.Kanada-En'yo, Y.Taniguchi, M.Kimura
  • Journal Title: Nuclear Physics Volume: A805 Pages: 392-397
• [Journal Article] Alpha clustering and molecule like states in sd-pf shell nuclei (2010)
  • Author(s): M.Kimura, N.Furutachi
  • Journal Title: AIP Conference Proceedings Volume: 1235 Pages: 212-217
• [Presentation] Clustering aspects in highly excited states and neutro-rich nuclei (2012)
  • Author(s): M.Kimura
  • Organizer: 10^<th> International Conference on Clustering Aspects of Nuclear Structure and Dynamics
  • Place of Presentation: Koelcsey Convention Centre (Hungary)
  • Year and Date: 2012-09-25
• [Presentation] Collective motions and exotic deformations in neutron-rich nuclei (2012)
  • Author(s): M.Kimura
  • Organizer: The 8^<th> China-Japan Joint Nuclear Physics Symposium
  • Place of Presentation: Beijing International convention Center (China)
  • Year and Date: 2012-08-17
• [Presentation] Clustering aspects in highly excited states and neutro-rich nuclei (2012)
  • Author(s): M.Kimura
  • Organizer: 10th International Conference on Clustering Aspects of Nuclear Structure and Dynamics
  • Place of Presentation: Koelcsey Convention Centre (Hungary)
  • Invited
• [Presentation] Collective motions and exotic deformations in neutron-rich nuclei (2012)
  • Author(s): M. Kimura
  • Organizer: The 8th China-Japan Joint Nuclear Physics Symposium
  • Place of Presentation: Beijing International Convention Center (China)
  • Invited
• [Presentation] Modifying and Probing Nuclear Structure using Λ particle (2012)
  • Author(s): M. Kimura, M. Isaka, H. Homma, A. Dote, and A. Ohnishi
  • Organizer: Symposium:Quarks to Universe in Computational Science
  • Place of Presentation: 奈良新公会堂 (奈良市)
  • Invited
• [Presentation] Island of Inversion 近傍での，非軸対称変形と変形共存 (2012)
  • Author(s): 木村真明
  • Organizer: 日本物理学会 2012 年秋季大会
  • Place of Presentation: 京都産業大学 (京都市)
• [Presentation] Collective motions and exotic deformations in neutron-rich nuclei (2012)
  • Author(s): M. Kimura
  • Organizer: The Third International Symposium on Frontiers in Nuclear Physics
  • Place of Presentation: Beihang University (China)
• [Presentation] Shape coexistence in neutron-rich N=20 and 28 isotopes studied by anti-symmetrized molecular dynamics (2011)
  • Author(s): M.Kimura
  • Organizer: Physical Society of Korea, Japan-Korea Joint Symposium
  • Place of Presentation: Busan Exhibition and Convention center (Korea)
  • Year and Date: 2011-10-22
• [Presentation] Shape coexistence in neutron-ricn N=20 and 28 isotopes studied by anti-symmetrized molecular dynamics (2011)
  • Author(s): M.Kimura
  • Organizer: 韓国物理学会,日韓共同シンポジウム
  • Place of Presentation: Busan Exhibition and Conventional Center(韓国)(招待講演)
  • Year and Date: 2011-10-21
• [Presentation] Clustering aspects of highly excited and neutron-rich nuclei (2011)
  • Author(s): M.Kimura
  • Organizer: YKIS2011, Frontier Issues in Physics of Exotic Nuclei
  • Place of Presentation: 京都大学(京都市)(招待講演)
  • Year and Date: 2011-10-12
• [Presentation] Shape coexistence and shell evolution of N 28 system-the case of 43S- (2011)
  • Author(s): M.Kimura
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 弘前大学(弘前市)
  • Year and Date: 2011-09-18
• [Presentation] 24MgとIsland of Inversionでのモノポール遷移 (2011)
  • Author(s): M.Kimura
  • Organizer: RCNP研究会
  • Place of Presentation: 大阪大学(茨木市)(招待講演)
  • Year and Date: 2011-09-07
• [Presentation] Landscape of the island of inversion studied by AMD (2011)
  • Author(s): M.Kimura
  • Organizer: Many body correlations from dilute to dense nuclear matter
  • Place of Presentation: Institute Henri Poincare (France)
  • Year and Date: 2011-02-15
• [Presentation] Landscape of the island of inversion studied by AMD (2011)
  • Author(s): M.Kimura
  • Organizer: Many body correlations from dilute to dense nuclear matter
  • Place of Presentation: Henri-Poincare Institute, Paris, France(招待講演)
  • Year and Date: 2011-02-15
• [Presentation] Systematic study of many-particle and many-hole states in and around the "island of inversion" (2011)
  • Author(s): M.Kimura
  • Organizer: French Japanese Symposium on Nuclear Structure Problems
  • Place of Presentation: 理化学研究所(埼玉県)(招待講演)
  • Year and Date: 2011-01-06
• [Presentation] AMDで調べるsd-シェルハイパー核構造論 (2010)
  • Author(s): 木村真明
  • Organizer: ストレンジネス核物理2010
  • Place of Presentation: 高エネルギー加速器研究機構(茨城県)
  • Year and Date: 2010-12-04
• [Presentation] Spectroscopy of N=21 isotones in the Island of Inversion with AMD (2010)
  • Author(s): M.Kimura
  • Organizer: University of Aizu-JUSTIPEN-EFES Symposium on "Cutting-Edge Physics of Unstable Nuclei"
  • Place of Presentation: 会津大学(福島県)
  • Year and Date: 2010-11-12
• [Presentation] Clustering aspects of highly excited and neutron-rich nuclei (2010)
  • Author(s): M.Kimura
  • Organizer: YKIS2011, Frontier Issues in Physics of Exotic Nuclei
  • Place of Presentation: Kyoto University , Japan
  • Year and Date: 2010-10-12
• [Presentation] Clustering aspects in neutron-rich nuclei studied by AMD (2010)
  • Author(s): 木村真明
  • Organizer: RCNP重イオン蓄積リングの物理
  • Place of Presentation: 大阪大学(茨木市)(招待講演)
  • Year and Date: 2010-09-25
• [Presentation] N=21 isotoneの準位構造・粒子空孔構造 (2010)
  • Author(s): 木村真明
  • Organizer: 日本物理学会
  • Place of Presentation: 九州工業大学(福岡県)
  • Year and Date: 2010-09-12
• [Presentation] Spectroscopy of N=21 isotones in the Island of Inversion with AMD (2010)
  • Author(s): M.Kimura
  • Organizer: EMMI-EFES workshop on neutron-rich exotic nuclei
  • Place of Presentation: 理化学研究所(埼玉県)
  • Year and Date: 2010-06-18
• [Presentation] Systematic study of mpmh states in the Island of Inversion (2010)
  • Author(s): M.Kimura
  • Organizer: State of the Art in Nuclear Cluster Physics, SOTANCP2
  • Place of Presentation: Universite Libre de Bruxelles, Belgium.
  • Year and Date: 2010-05-25
• [Book] Lecture notes in Physics "Clusters in Nuclei" 129 (2010)
  • Author(s): Y.Kanada-En'yo, M.Kimura
  • Total Pages: 257
  • Publisher: Springer