Investigation of Nuclear Structure Using the Interacting Boson Model

*** 9503095 Barrett 该美洲计划奖将支持亚利桑那大学的 Bruce R. Barrett 博士和巴拿马大学的 Abdoulaye Foula Diallo 博士之间的研究合作。 他们将使用相互作用玻色子模型 (IBM) 的 1/A-玻色子展开法来研究中到重质量原子核的核结构。 玻色子展开法是一种强大的技术，用于研究太大而无法处理的大型核系统，即使是在 IBM 的普通简化范围内也是如此。 该研究将分两个阶段进行，使用 1/a-玻色子展开法的两个扩展。 这两个扩展都将提供该方法的大量应用，以研究稀土和锕系元素区域中现有的和新测量的结果。在过去的二十年中，代数方法在核性质计算中的应用越来越多。 这种方法不仅突出了核行为的基本结构，而且有助于对元素周期表的整个区域进行系统研究。 Barrett 博士在相互作用玻色子模型的应用、扩展和微观解释方面的经验补充了 Diallo 博士在 1/A-玻色子扩展方法方面的专业知识，后者帮助开发了该方法。 ***

*** 9503095 Barrett This Americas Program award will support a research collaboration between Dr. Bruce R. Barrett, University of Arizona, and Dr. Abdoulaye Foula Diallo, Universidad de Panama. They will investigate the nuclear structure of medium-to-heavy-mass nuclei using the 1/A-Boson-expansion method for the Interacting Boson Model (IBM). The Boson expansion method is a powerful technique for investigating massive nuclear systems too large to handle, even within the ordinary simplification of the IBM. The study will be done in two stages, using two extensions of the 1/a-boson expansion method. Both extensions will provide a large number of applications of the approach to the study of existing and newly measured results in the rare-earth and actinide regions.For the last two decades there has been an increased application of algebraic methods to the calculation of nuclear properties. Such an approach not only highlights the underlying structure of nuclear behavior, but also facilitates its systematic study over entire regions of the periodic table. Dr. Barrett experience regarding the application, extension and microscopic interpretation of the Interacting Boson Model complements Dr. Diallo's expertise on the 1/A-boson- expansion method which the latter helped to develop. ***