U.S.-Japan Cooperative Science: Nuclear Incompressibility and the Exotic Compressional Modes in Nuclei

9910015Garg该奖项支持印第安纳州圣母大学的Uesh Garg教授和日本大阪大学的Mamoru Fujiwara教授之间为期三年的合作研究项目。研究人员将对原子核的不可压缩性和原子核中奇异的压缩模式进行研究。这项研究的目的是对大块核物质的可压缩性质有新的认识。这些测量旨在详细研究等标量巨偶极子共振(ISGDR)。在低L等标量巨型共振中，ISGDR可以说是研究最少的。然而，它的重要之处在于它是一种压缩模式，并且ISGDR的能量与核不可压缩系数Ka有关。该项目汇集了两个拥有互补专业知识和研究能力的实验室的努力。关于核可压缩性的工作对我们对核状态方程的了解具有至关重要的影响，这反过来将极大地增强我们对许多有趣现象的理解，如超新星爆炸、中子星和重离子碰撞中的集体流动。这项研究涉及真空系统、高强度磁铁、电子电路和计算机接口等最先进的技术。该项目通过博士后、研究生、本科生和高中生的参与促进了国际人力资源的发展。通过思想和技术的交流，这个项目将扩大我们的基础知识基础，促进国际理解与合作。研究结果将发表在国际科学期刊上，并在美国和国外的科学会议上公布。*

9910015GargThis award supports a three year collaborative research project between Professor Umesh Garg of the University of Notre Dame in Indiana and Professor Mamoru Fujiwara of Osaka University in Japan. The researchers will be undertaking a study of nuclear incompressibility and the exotic compressional modes in nuclei. The goal of this research is to gain new insight into the compressibility properties of bulk nuclear matter. The proposed measurements aim at investigating the Isoscalar Giant Dipole Resonance (ISGDR) in detail. The ISGDR is arguably the least studied of the low-l isoscalar giant resonances. However, it's enormous importance lies in the fact that it is a compressional mode and the energy of the ISGDR is related to the nuclear incompressibility Ka. The project brings together the efforts of two laboratories that have complementary expertise and research capabilities. The work on nuclear compressibility has crucial bearing on our knowledge of the nuclear equation of state that in turn will greatly enhance our understanding of many interesting phenomena like supernova explosions, neutron stars, and collective flow in heavy-ion collisions. This research involves state-of-art technologies in vacuum systems, high-strength magnets, electronics circuitry and computer interfacing. The project advances international human resources through the participation of a postdoc, graduate students, an undergraduate and a high school student. Through the exchange of ideas and technology, this project will broaden our base of basic knowledge and promote international understanding and cooperation. Results of the research will be published in international scientific journals and also presented at scientific meetings in the U.S. and abroad.***