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Macroscopic Nuclear Dynamics with Microscopic Foundations

具有微观基础的宏观核动力学

基本信息

批准号：
20K14458
负责人：
温凱
金额：
$ 1.91万
依托单位：
University of Tsukuba
依托单位国家：
日本
项目类别：
Grant-in-Aid for Early-Career Scientists
财政年份：
2020
资助国家：
日本
起止时间：
2020-04-01 至 2023-03-31
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20K14458/
关键词：
nuclear reaction collective coordinate collective inertial mass mass parameter nuclear fusion nuclear fission many body problem collective dynamics

项目摘要

According to the proposed research plan, our aim is to extract the collective reaction path as well as the collective inertial mass for nulcear reacions, so as to analyse the microscopic mechanism of nuclear fusion/fission. In our previous work, we succeeded to obtain the inertial masses in a schematic model. From the year 2020 we performed a systematic research on the calculations of "Microscopic collective inertial masses for nuclear reaction in the presence of nucleonic effective mass", which is also the title of the paper we published in Physical Review C (Kai Wen et.al. Phys. Rev. C 105, 034603, 2022), in this paper we extended our method and made innovative understanding on nuclear collective inertial mass. Then we performed more advanced calculations beyond the traditional meanfield approximation, where the nuclear pairing interaction is included and the modern nuclear density functionls are being applied. This calculation requires more sophisticated numerical techniques and finally significant achievements are made, preliminary progress is reported on the conferences YITP Workshop “Fundamentals in density functional theory 2022 (DFT2022)” in Kyoto and International Symposium on Nuclear Spectroscopy for Extreme Quantum systems 2023" in Numazu.

根据提出的研究计划，我们的目标是提取核反应的集体反应路径和集体惯性质量，以便分析核聚变/裂变的微观机制。在我们以前的工作中，我们成功地获得了一个示意模型中的惯性质量。从2020年开始，我们对“核子有效质量存在下核反应的微观集体惯性质量”的计算进行了系统的研究，这也是我们在Physical Review C上发表的论文的标题。（Kai Wen等人，Phys. Rev. C 105，034603，2022），本文扩展了我们的方法，对核集体惯性质量做出了创新性的理解。然后，我们进行了更先进的计算，超越了传统的平均场近似，其中包括核配对相互作用和现代核密度函数被应用。这种计算需要更复杂的数值技术，最终取得了重大成果，在京都的YITP研讨会“密度泛函理论基础2022（DFT 2022）”和沼津的极端量子系统核光谱国际研讨会2023”上报告了初步进展。