A key to produce 16O--Structure study of states close to 12C+ threshold

• Project/Area Number: 15K05072
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Niigata University
• Principal Investigator: SUZUKI YASUYUKI 新潟大学, 自然科学系, 名誉教授 (70018670)
• Co-Investigator(Kenkyū-buntansha): 堀内 渉 北海道大学, 理学研究院, 講師 (00612186)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: nuclear clustering / astrophysical reactions / correlated Gaussians / 放射性捕獲反応 / 酸素原子核の構造 / クラスター化 / パウリ禁止状態 / 酸素16核の構造 / 空間局在した1粒子波動関数 / 炭素12＋αクラスター模型 / 酸素１６核の構造 / 炭素１２＋αクラスター模型

Outline of Final Research Achievements

We have developed a series of studies using correlated Gaussians in order to describe many-particle correlated motion like nuclear clustering. With this method we have published a number of papers including nuclear astrophysical research. Especially we have developed a computer code based on a framework of a core nucleus plus a few valence nucleons. This is important to reliably calculate the rate of 12C+α radiative capture reactions to produce 16O. However, the elimination of Pauli-forbidden configurations costs expensive configuration space. We think further development in theory and computer resources is needed to select important basis functions.

Research Products

• [Journal Article] Towards a Unied Model of Neutrino-Nucleus Reactions for Neutrino Oscillation Experiments (2017)
  • Author(s): S. X. Nakamura, H. Kamano, Y. Hayato, M. Hirai, W. Horiuchi, S. Kumano, T. Murata, K. Saito, M. Sakuda, T. Sato, Y. Suzuki
  • Journal Title: Reports on Progress in Physics Volume: 80 Issue: 5 Pages: 0563011-38
  • DOI: 10.1088/1361-6633/aa5e6c
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Correlated-Gaussian approach to linear-chain states: Case of four-α particles (2017)
  • Author(s): Y. Suzuki and W. Horiuchi
  • Journal Title: Physical Review C Volume: 95 Issue: 4
  • DOI: 10.1103/physrevc.95.044320
  • Peer Reviewed
• [Journal Article] Low-lying electric dipole strengths of Ca, Ni, and Sn isotopes imprinted on total reaction cross sections (2017)
  • Author(s): W. Horiuchi, S. Hatakeyama, S. Ebata, and Y. Suzuki
  • Journal Title: Physical Review C Volume: 96 Issue: 2
  • DOI: 10.1103/physrevc.96.024605
  • Peer Reviewed
• [Journal Article] Alpha clustering near nuclear surface and harmonic-oscillator excitations (2017)
  • Author(s): W. Horiuchi and Y. Suzuki
  • Journal Title: Journal of Physics G: Conference Series Volume: 863 Pages: 012007-012007
  • DOI: 10.1088/1742-6596/863/1/012007
  • Peer Reviewed
• [Journal Article] Towards a unified model of neutrino-nucleus reactions for neutrino oscillation experiments (2017)
  • Author(s): S. X. Nakamura, H. Kamano, Y. Hayato, M. Hirai, W. Horiuchi, S. Kumano, T. Murata1, K. Saito, M. Sakuda, T. Sato, Y. Suzuki
  • Journal Title: Reports on Progress in Physics Volume: 80
  • Peer Reviewed
• [Journal Article] Parameter-free calculation of charge-changing cross sections at high energy (2016)
  • Author(s): Y. Suzuki, W. Horiuchi, S. Terashima, R. Kanungo, F. Ameil, and 29 others
  • Journal Title: Physical Review C Volume: 94 Issue: 1
  • DOI: 10.1103/physrevc.94.011602
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Proton distribution radii of 12-19C illuminate features of neutron halos (2016)
  • Author(s): R. Kanungo, W. Horiuchi, G. Hagen, G.R. Jansen, P. Navratil and 33 others
  • Journal Title: Physical review Letters Volume: 117 Issue: 10 Pages: 1025011-6
  • DOI: 10.1103/physrevlett.117.102501
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Precise calculation of the triple-α reaction rates using the transmission-free complex absorbing potential method (2016)
  • Author(s): H. Suno, Y. Suzuki, P. Descouvemont
  • Journal Title: Physical Review C Volume: 94 Issue: 5
  • DOI: 10.1103/physrevc.94.054607
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Quark-Pauli effects in three octet-baryons (2016)
  • Author(s): C. Nakamoto, Y. Suzuki
  • Journal Title: Physical Review C Volume: 94 Issue: 3
  • DOI: 10.1103/physrevc.94.035803
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Five-body calculation with Pauli constraint for shell- and cluster-structure in 16O (2016)
  • Author(s): W. Horiuchi, Y. Suzuki
  • Journal Title: EPJ Web of Conferences Volume: 113
  • Peer Reviewed / Open Access
• [Journal Article] Extracting of nuclear sizes of medium to heavy nuclei from total reaction cross sections (2016)
  • Author(s): W. Horiuchi, S. Hatakeyama, S. Ebata, Y. Suzuki
  • Journal Title: Physical Review C Volume: 93 Issue: 4
  • DOI: 10.1103/physrevc.93.044611
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Triple-α continuum structure and Hoyle resonance of 12C using the hyperspherical slow variable discretization (2015)
  • Author(s): H. Suno, Y. Suzuki, P. Descouvemont
  • Journal Title: Physical Review C Volume: 91 Issue: 1
  • DOI: 10.1103/physrevc.91.014004
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Adiabatic hyperspherical approach to large-scale nuclear dynamics (2015)
  • Author(s): Y. Suzuki
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2015 Issue: 4
  • DOI: 10.1093/ptep/ptv052
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] 精密少数体波動関数にみる多核子相関 (2017)
  • Author(s): 堀内渉，T. Neff, H. Feldmeier, 鈴木宜之
  • Organizer: 基研研究会「核力に基づく核構造、核反応物理の展開」
  • Place of Presentation: 京都大学基礎物理学研究所、京都府、京都市
  • Year and Date: 2017-03-27
• [Presentation] 4α線形鎖状構造 (2017)
  • Author(s): 鈴木宜之,堀内渉
  • Organizer: 基研研究会「核力に基づく核構造、核反応物理の展開」
  • Place of Presentation: 京都大学基礎物理学研究所、京都府、京都市
  • Year and Date: 2017-03-27
• [Presentation] Structure of unstable nuclei studied with total reaction cross sections (2017)
  • Author(s): W. Horiuchi, S. Hatakeyama, S. Ebata, and Y. Suzuki
  • Organizer: The international Symposium on Physics of Unstable Nuclei 2017 (ISPUN17)
• [Presentation] Triple-alpha reactions at low temperatures (2016)
  • Author(s): Y. Suzuki
  • Organizer: ECT* workshop ‘Three-body systems in reactions with rare isotopes'
  • Place of Presentation: Trento, Italy
  • Year and Date: 2016-10-03
• [Presentation] 全反応断面積及び荷電変化断面積による核半径 (2016)
  • Author(s): 鈴木宜之
  • Organizer: にほん物理学会2016年秋季大会
  • Place of Presentation: 宮崎大学木花キャンパス、宮崎県、宮崎市
  • Year and Date: 2016-09-21
• [Presentation] Alpha-clustering near nuclear surface and harmonic-oscillator excitations (2016)
  • Author(s): W. Horiuchi, Y. Suzuki
  • Organizer: 11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics (Cluster'16)
  • Place of Presentation: University of Naples, Naples, Italy
  • Year and Date: 2016-05-23
• [Presentation] 全反応断面積による陽子・中性子半径の研究 (2016)
  • Author(s): 堀内渉
  • Organizer: ＲＣＮＰ研究会「全反応断面積及び荷電変化断面積による陽子・中性子半径研究の現状と展望」
  • Place of Presentation: 大阪大学核物理研究センター
  • Year and Date: 2016-01-12
  • Invited
• [Presentation] ヘリウム同位体の励起と核子相関 (2015)
  • Author(s): 堀内渉
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪市立大学杉本キャンパス
  • Year and Date: 2015-09-25
  • Invited
• [Presentation] 全反応断面積を用いた重い原子核の中性子スキン厚の導出 (2015)
  • Author(s): 堀内渉、江幡修一郎、畠山慎也、鈴木宜之
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪市立大学杉本キャンパス
  • Year and Date: 2015-09-25
• [Presentation] Few-body calculation with Pauli constraint for shell- and cluster-structure in 16O (2015)
  • Author(s): W. Horiuchi, Y. Suzuki
  • Organizer: The 21st International Conference on Few-Body Problems in Physics
  • Place of Presentation: Chicago
  • Year and Date: 2015-05-18
  • Int'l Joint Research
• [Book] Chap. 7 'Clustering in light nuclei with the correlated Gaussian approach' in Emergent Phenomena in Atomic Nuclei From Large-Scale Modeling (2017)
  • Author(s): Y. Suzuki and W. Horiuchi (editor Kristina D. Launey)
  • Publisher: World scientific Publishing Co.
  • ISBN: 9789813146044