U.S.-Brazil Cooperative Research on Electromagnetic Processes in Heavy-Ion Physics

该奖项支持威斯康星大学麦迪逊分校的Akif Balantekin、William Friedman和Kirk McVoy与圣保罗大学的巴西物理学家Maria Nemes和巴西联邦大学的Carlos Bertulani在理论核物理学方面的合作研究。他们将研究重离子核反应中的电磁过程。这项研究的直接目标是调查轫致辐射是否携带有关相对论性重离子反应中核碎裂性质的特定信息。与全量子力学处理相比，还研究了广泛使用的电磁激发过程的Williams-Weizacker虚光子极限的局限性。利用轫致辐射的想法是一个新的想法，因此研究将被证明是及时和有趣的。这项工作将把双方具有独特经验的团队聚集在一起。除了对美国和巴西的共同利益，这项研究将有利于核科学家的社区。

This award supports cooperative research on theoretical nuclear physics to be carried out by Akif Balantekin, William Friedman and Kirk McVoy of the University of Wisconsin at Madison in collaboration with Brazilian physicists Maria Nemes at the University of Sao Paulo and Carlos Bertulani at the Federal University in Rio de Janeiro. They will study electromagnetic processes in heavy-ion nuclear reactions. The immediate goal of the research is to investigate whether bremsstrahlung radiation carries specific information about the nature of nuclear fragmentation in relativistic heavy-ion reactions. Also to be studied are the limitations of the widely used Williams-Weizacker virtual photon limit of the electromagnetic excitation process by comparing to a fully quantum mechanical treatment. The idea to use bremsstrahlung radiation is a new one so the investigation will prove to be timely and interesting. This work will bring together a team with unique experience on both sides. Besides the mutual benefit to the U.S. and Brazil, this research will be beneficial to the community of nuclear scientists.