Roles of pion-exchange potential and tensor force in light unstable nuclei

2014 Fiscal Year Final Research Report

• Project/Area Number: 24740175
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Osaka Institute of Technology
• Principal Investigator: MYO Takayuki 大阪工業大学, 工学部, 准教授 (20423212)
• Research Collaborator: TOKI Hiroshi 大阪大学, 核物理研究センター, 名誉教授 (70163962) ; IKEDA Kiyomi 理化学研究所, 仁科加速器研究センター, 客員研究員 (40011548) ; UMEYA Atsushi 日本工業大学, 共通教育系, 准教授 (20454580) ; KATO Kiyoshi 北海道大学, 理学部, 名誉教授 (20109416)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 核力 / テンソル力 / 不安定核 / テンソル最適化殻模型 / 共鳴 / ハロー構造 / 鏡映対称性 / 高運動量

Outline of Final Research Achievements

The nucleus is bound by the one-pion exchange potential between protons and neutrons. In this study, we investigate the role of this potential, which involves the non-central component "tensor force". We have developed the model of treating the tensor force in nuclear structure. We apply this model to investigate the systematic structures of light nuclei. The tensor force is found to play an essential role to reproduce the energy spectra of nuclei. We also predict the symmetry breaking in the structures between the proton-rich and neutron-rich nuclei.

Free Research Field

理論核物理