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

9910015 Garg该奖项支持印第安纳州圣母大学Umesh Garg教授和日本大坂大学Mamoru Fujiwara教授之间为期三年的合作研究项目。 研究人员将进行核不可压缩性和核中奇异压缩模式的研究。 这项研究的目的是获得新的洞察散装核物质的可压缩性。 建议的测量旨在详细研究等标量巨偶极共振（ISGDR）。 ISGDR可以说是研究最少的低-l isoscope巨共振。 然而，它的巨大重要性在于它是一个压缩模，并且ISGDR的能量与核不可压缩性Ka有关。 该项目汇集了两个具有互补专业知识和研究能力的实验室的努力。 核可压缩性的工作对我们了解核状态方程有着至关重要的意义，而这反过来又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。 这项研究涉及真空系统、高强度磁体、电子电路和计算机接口方面的最新技术。 该项目通过一名博士后、一名研究生、一名本科生和一名高中生的参与促进国际人力资源。 通过交流思想和技术，该项目将扩大我们的基础知识，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发表。

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.***