US-Bangladesh Cooperative Research: Determination of Alpha- Nucleus Interaction from Elastic, Inelastic and Particle Transfer Reactions

本奖项旨在支持南伊利诺伊大学物理学教授F. barry Malik博士和孟加拉国拉杰沙希大学物理系的Arun Kumar Basak博士之间的合作研究项目。提出的工作是在中低能量状态下α粒子-核相互作用（轻靶核）的理论研究。目的是从弹性、非弹性和粒子转移数据的分析和逆散射理论出发，确定中-轻核的α -核相互作用。在许多情况下，在已知的反应中，在背角处截面的大幅增强仍然是无法解释的。计划是：(1)扩展相互作用的功能形式，包括单调和非单调函数（或分子势），并强调表面吸收；(2)结合使用两种类型的势的通道耦合；(3)在散射振幅中允许实际共振项，如果必要的话；(4)从逆散射理论确定势，特别是如果相移分析可用。范围：该项目将支持两个具有互补能力和机构设施的团队之间的协作。美国私家侦探是一位受人尊敬的研究人员，有着长期的出版记录。外国合作者在过去做了重要的工作。这项研究的主题很重要，有可能对核反应理论做出重大贡献，并有助于澄清一些长期存在的问题。这种合作将对孟加拉国研究所进行这项重要研究和获得国际研究成果的能力产生重大影响。它还将帮助美国科学家通过在外国研究所拥有优秀的科学人才来加快他的研究工作。该项目符合国际项目司的目标。

Description: This award is for support of a collaborative research project between Dr. F. Bary Malik, Professor of Physics at Southern Illinois University and Dr. Arun Kumar Basak of the Physics Department at Rajshahi University in Rajshahi, Bangladesh. The proposed work is for theoretical studies of alpha particle-nucleus interaction (for light target nuclei) in the low-to-medium energy regime. The aim is to determine alpha-nuclus interaction for medium-light nuclei from the analyses of elastic, inelastic and particle transfer data and from an inverse scattering theory. The large enhancement of cross sections at back angles in the noted reaction has, in many cases, remained unexplained. The plan is: (1) to expand the functional form of interaction to include both monotonic and non-monotonic functions (or molecular potential) and emphasize surface absorption, (2) to incorporate channel coupling using both types of potential, (3) to allow for actual resonance terms in scattering amplitude, if necessary, and (4) to determine the potential from an inverse scattering theory, particularly if the phase shift analyses are available. Scope: This project will support collaboration between two teams with complementary capabilities and institutional facilities. The US P.I. is well-respected researcher with a long publication record. The foreign collaborator has done significant work in the past. The topic of this research is important, with potential for significant contributions to nuclear reaction theory and should help clear some longstanding issues. The collaboration will have major impact on the ability of the Bangladeshi institute to do this important research and to have access to results from international research. It will also help the US scientist accelerate his research work by having the excellent scientific talent available at the foreign institute. The project fits within the objectives of the Division of International Programs.