Role of unbound states for the exotic structure of nuclei in the drip-line region

• Project/Area Number: 21740154
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Kitami Institute of Technology
• Principal Investigator: MASUI Hiroshi 北見工業大学, 工学部, 准教授 (30396345)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: 原子核(理論) / 不安定核 / 不安定核の構浩 / 殼模型 / 非束縛状態 / 核半径 / 不安定核物理 / 共鳴状態 / 殻模型

Research Abstract

We study the exotic structure of nuclei near the drip-line by using a core plus valence nucleons model. The sudden change of the radius of oxygen isotopes at 230 is investigated in a model space of the core plus valence nucleons. The key mechanism to make such the change comes from change of the dominant contribution of channels in the core nucleus induced by the presence of the valence nucleons.

Research Products

• [Journal Article] Investigation for a Drastic Change of the Core in^<23>O and^<24>O (2012)
  • Author(s): Hiroshi Masui, Kiyoshi Kato, KiyomiIkeda
  • Journal Title: Few-Body Systems Volume: 52 Pages: 1-1
  • Peer Reviewed
• [Journal Article] Investigation for a Drastic Change of the Core in 23O and 24O (2012)
  • Author(s): Hiroshi Masui
  • Journal Title: Few-Bosy Systems Volume: 52 Issue: 1-4 Pages: 541-544
  • DOI: 10.1007/s00601-012-0428-9
  • Peer Reviewed
• [Journal Article] Particlecapture reaction using extended core plusvalence nucleon model (2011)
  • Author(s): Kazuyuki Yamamoto, Hiroshi Masui, Masanobu Ohta, Kiyoshi Kato
  • Journal Title: Journal of the Korean Physical Society Volume: 59 Pages: 907-910
  • Peer Reviewed
• [Journal Article] Properties of drip-line nuclei withan mscheme cluster-orbital shell modelapproach (2011)
  • Author(s): Hiroshi Masui, Kiyoshi Kato, Kiyomi Ikeda
  • Journal Title: Journal of Physics : Conference Series Volume: 312 Pages: 92038-92038
  • Peer Reviewed
• [Journal Article] Properties of drip-line nuclei with an m-scheme cluster-orbital shell model approach (2011)
  • Author(s): Hiroshi Masui
  • Journal Title: Journal of Physics : Conference Series Volume: 312 Issue: 9 Pages: 92038-92038
  • DOI: 10.1088/1742-6596/312/9/092038
  • Peer Reviewed
• [Journal Article] Particle capture reaction using extended core plus valence nucleon model (2011)
  • Author(s): Kazuyuki Yamamoto
  • Journal Title: Journal of the Korean Physical Society Volume: 59 Issue: 2(3) Pages: 907-910
  • DOI: 10.3938/jkps.59.907
  • Peer Reviewed
• [Journal Article] Cluster-orbital shell modelapproach and developments for study of neutron-rich systems (2010)
  • Author(s): Hiroshi Masui, Kiyoshi Kato, Kiyomi Ikeda
  • Journal Title: CERN Proceedings 2010 Pages: 63-68
• [Journal Article] Cluster-orbital shell modelapproach for study of exotic nuclei near the neutron drip-line (2010)
  • Author(s): Hiroshi Masui, Kiyoshi Kato, Kiyomi Ikeda
  • Journal Title: Modern Physics Letters Volume: A25 Pages: 1911-1914
• [Journal Article] Cluster-orbital shell model approach for study of exotic nuclei near the neutron drip-line (2010)
  • Author(s): Hiroshi MASUI
  • Journal Title: Modern Physics Letters A Volume: 25 Pages: 1911-1914
• [Journal Article] Cluster-orbital shell model approach and developments for study of neutron-rich systems (2010)
  • Author(s): Hiroshi MASUI
  • Journal Title: CERN Proceedings 2010 Volume: 1 Pages: 63-68
• [Journal Article] Study of neutron-rich nuclei withan m-scheme cluster-orbital shell modelapproach (2009)
  • Author(s): Hiroshi Masui, Kiyoshi Kato, Kiyomi Ikeda
  • Journal Title: European Physical Journal Volume: A42 Pages: 535-540
  • Peer Reviewed
• [Journal Article] M-scheme cluster-orbital shellmodel approach for neutron-rich systems (2009)
  • Author(s): Hiroshi Mmasui, Kiyoshi Kato, Kiyomi Ikeda
  • Journal Title: Modern Physics Letters Volume: A24 Pages: 1009-1012
  • Peer Reviewed
• [Journal Article] Study of neutron-rich nuclei with an m-scheme cluster-orbital shell model approach (2009)
  • Author(s): Hiroshi MASUI
  • Journal Title: European Physical Journal A 42 Pages: 535-540
  • Peer Reviewed
• [Journal Article] M-scheme cluster-orbital shell model approach for neutron-rich systems (2009)
  • Author(s): Hiroshi MASUI
  • Journal Title: Modern Physics Letters A 24 Pages: 1009-1012
• [Presentation] 部分禁止状態を考慮に入れたCluster-orbital shell model計算 (2012)
  • Author(s): 升井洋志
  • Organizer: 日本物理学会第67回年年次大会
  • Place of Presentation: 関西学院大学,西宮
  • Year and Date: 2012-03-27
• [Presentation] Effects of the core-size andvalence neutrons for the structure of unstable nuclei (2011)
  • Author(s): 升井洋志
  • Organizer: The international Symposium on Physics on Unstable NucleiISPUN11
  • Place of Presentation: Hanoi,ベトナム.
  • Year and Date: 2011-11-25
• [Presentation] Effects of the core-size and valence neutrons for the structure of unstable nuclei (2011)
  • Author(s): 升井洋志
  • Organizer: The international Symposium on Physics on Unstable Nuclei "ISPUN11"
  • Place of Presentation: Hanoi,ベトナム
  • Year and Date: 2011-11-25
• [Presentation] Study of a role of valencenucleons with a drastic change of the corein drip-line nuclei (2011)
  • Author(s): 升井洋志
  • Organizer: YKIS2011 SymposiumFrontier Issues in Physics of Exotic Nuclei
  • Place of Presentation: 京都大学,京都
  • Year and Date: 2011-10-13
• [Presentation] Study of a role of valence nucleons with a drastic change of the core in drip-line nuclei (2011)
  • Author(s): 升井洋志
  • Organizer: YKIS2011 Symposium Frontier Issues in Physics of Exotic Nuclei
  • Place of Presentation: 京都大学、京都
  • Year and Date: 2011-10-13
• [Presentation] Cluster-orbital shell modelにおけるコア励起のモデル化と価核子の影響 (2011)
  • Author(s): 升井洋志
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 弘前大学,青森
  • Year and Date: 2011-09-16
• [Presentation] Investigation for a drasticchange of the core in^<23>O and^<24>O (2011)
  • Author(s): 升井洋志
  • Organizer: The Fifth Asia-Pacific Conference on Few-Body Problems in Physics 2011
  • Place of Presentation: Seoul,韓国
  • Year and Date: 2011-08-25
• [Presentation] Investigation for a drastic change of the core in ^<23>O and ^<24>O (2011)
  • Author(s): 升井洋志
  • Organizer: The Fifth Asia-Pacific Conference on Few-Body Problems in Physics 2011
  • Place of Presentation: Seoul,韓国
  • Year and Date: 2011-08-25
• [Presentation] 中性子過剰核における価核子とコア励起の関係 (2010)
  • Author(s): 升井洋志
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 九州工業大学(福岡県)
  • Year and Date: 2010-09-13
• [Presentation] 中性子過剰核における価核子とコア励起の関係 (2010)
  • Author(s): 升井洋志
  • Organizer: 日本物理学会 2010年秋季大会
  • Place of Presentation: 九州工業大学(福岡県)
  • Year and Date: 2010-09-13
• [Presentation] Properties of drip-linenuclei with an m-scheme cluster-orbitalshell model approach (2010)
  • Author(s): 升井洋志
  • Organizer: International Nuclear Physics Conference 2010
  • Place of Presentation: University of British Columbia (バンクーバー、カナダ)
  • Year and Date: 2010-07-06
• [Presentation] Properties of drip-line nuclei with an m-scheme cluster-orbital shell model approach (2010)
  • Author(s): 升井洋志
  • Organizer: International Nuclear Physics Conference 2010
  • Place of Presentation: University of British Columbia(バンクーバー、カナダ)
  • Year and Date: 2010-07-06
• [Presentation] コア励起を取り入れたM-scheme cluster-orbital shell modelapproach (2010)
  • Author(s): 升井洋志
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学(岡山県)
  • Year and Date: 2010-03-23
• [Presentation] コア励起を取り入れたM-scheme cluster-orbital shell model approach (2010)
  • Author(s): 升井洋志
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学(岡山県)
  • Year and Date: 2010-03-23
• [Presentation] Study of density andstructure of oxygen isotopes with thecluster-orbital shell model approach (2009)
  • Author(s): 升井洋志
  • Organizer: The 3rd Joint Physics Meeting of APS and JPS
  • Place of Presentation: ハワイ島(アメリカ)
  • Year and Date: 2009-11-17
• [Presentation] Study of density and structure of oxygen isotopes with the cluster-orbital shell model approach (2009)
  • Author(s): 升井洋志
  • Organizer: The 3^<rd> Joint Physics Meeting of APS and JPS
  • Place of Presentation: ハワイ島(アメリカ)
  • Year and Date: 2009-11-17