Unified description of nuclear structure and application to neutron-rich nuclei

2016 Fiscal Year Final Research Report

• Project/Area Number: 26400269
• 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: Kyoto University
• Principal Investigator: Itagaki Naoyuki 京都大学, 基礎物理学研究所, 准教授 (70322659)
• Co-Investigator(Renkei-kenkyūsha): FURUMOTO Takenori 横浜国立大学, 教育学部学校 教育課程理科教育, 准教授 (20581086) ; SUHARA Tadahiro 松江工業高等専門学校, 数理科学科, 講師 (10708407)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 原子核構造 / 中性子過剰核 / 非中心力 / 三体力 / クラスター構造 / シェル構造 / 原子核反応

Outline of Final Research Achievements

General description of shell and cluster structures is a dream of nuclear structure physics. Describing cluster states starting with shell models, including modern ab initio ones,is a big challenge of computational nuclear science. On the other hand, if we start with the cluster model, we can easily describe cluster states with much less computational efforts, but
the contribution of non-central interactions, very important in nuclear structure, vanishes if we assume simple configuration at some localized point for each alpha cluster. The real systems have both natures of shell and cluster structures and quantum mechanical mixing of these two plays a crucial role in many cases.Thus we established a unified description for the nuclear structure.Our strategy is starting with the cluster model side,contrary to standard approaches starting with the shell model side, and try to extend the model space to include shell correlations especially for the contribution of the spin-orbit interaction.

Free Research Field

原子核理論