中重核区一些奇特核性质的宏观微观模型研究

项目名称： 中重核区一些奇特核性质的宏观微观模型研究

项目编号： No.10865004

项目类型： 地区科学基金项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 支启军

作者单位： 贵州师范大学

项目金额： 28万元

中文摘要： 远离稳定线奇特原子核的性质是当前国际核物理研究的热点之一。远离稳定区原子核具有一些与稳定线附近原子核不同的结构和性质。本项目将考虑同位旋效应和三轴性等新的物理因素，进一步发展和完善宏观微观模型，并用扩展了的宏观微观模型对中重质量区远离稳定线附近原子核老幻数的消失和新幻数的产生、壳的消蚀、反常形变，形状共存等现象进行研究，探讨形变、同位旋、单粒子闯入能级、自旋轨道耦合劈裂等在壳的变化、幻数产生和消失中的作用，寻找中重质量区新的物理现象和物理规律，丰富和发展远离稳定区的原子核结构理论和方法。此外，我们将用发展了的宏观-微观模型对一些超重核的性质进行进一步的细致计算，研究超重核区壳和形变子壳的变化、形变与核结构的关系、以及新的幻数等，为将来的超重核实验提供理论参考。

中文关键词： 中重核区；奇特核；幻数；壳结构；形变

英文摘要： Studies on the properties of exotic nuclei far from stable line is current focus of nuclear researches.Nuclei far from stable line have some different structures andproperties compared to nuclei near stable line. In this program, we try to develop and improve the macroscipic-microscopic(MM) model by including new physics, such as isospinand triaxiality. With the developed MM model, the disappearence of old magic numbers andappearance of new magic numbers, the erosion of shell,abnormal deformation and shape coexistence of nuclei far from stable line are studied and how the deformation,isospin, single-paricle intruder level and spin-orbit split affect the change of shell and magic numbers are discussed. Then, the program try to find new physical phenomena and law in the medium and heavy nuclei region, consequently to develop and enrich nuclear theory and nuclear method for nuclei far from stable line.In addition, with this developed model, systematic calculations on the properties of superheavy nuclei will be made to study the exotic new properties in superheavy region, such as the shell,deformed shell and new spherical or deformed magic numbers. This provid theoretical reference for future experiment.

英文关键词： exotic properties;stable line;MM model