U.S.-Japan Cooperative Research: Theoretical and Phenomeno- logical Studies in Elementary Particle Physics

该奖项将支持夏威夷大学马诺阿分校桑迪普·帕克瓦萨教授领导的一个小组与筑波大学、国家高能物理实验室(KEK)和东北大学的一个日本科学家小组在“基本粒子物理的理论和现象学研究”方面的合作研究项目。筑波大学物理研究所的原安夫教授是日本小组的领导人。科学家们将共同对理论物理中的强电流活动领域进行联合调查。其中一个主要主题将是研究介子的混合、CP破坏和稀有衰变。感兴趣的相关主题是弱衰变的计算方法，重点是手征对称性。另一类需要研究的现象是测试电弱理论的规范结构，扩展到标准模型之外，对称破坏机制的性质，以及寻找新的粒子。美国和日本组织的许多成员过去曾进行过合作。他们的研究将对未来的高能机器，如SSC，以及目前在日本KEK和美国SLAC正在研究的TeV直线对撞机产生影响。这两个小组还对中微子质量、混合和振荡非常感兴趣，并将研究神冈德的太阳和大气中微子日期以及其他实验对它们的影响，以及天体物理学和早期宇宙中的中微子和轴子。

This award will support a cooperative research project in "Theoretical and Phenomenological Studies in Elementary Particle Physics" between a group at the University of Hawaii at Manoa led by Professor Sandip Pakvasa and a group of Japanese scientists from the University of Tsukuba, the National Laboratory for High Energy Physics (KEK), and Tohoku University. Professor Yasuo Hara, Institute of Physics, University of Tsukuba, is the leader of the Japanese group. Together the scientists will pursue joint investigations into areas of intense current activity in theoretical physics. One of the main topics will be studies of mixing, CP violation and rare decays of mesons. Related topics of interest are methods of calculation of weak decays with focus on chiral symmetry. Another class of phenomema to be studied is testing of gauge structure of electro-weak theories, extensions beyond the standard model, the nature of the symmetry-breaking mechanism, and the search for new particles. Many members of the U.S. and Japanese groups have collaborated in the past. Their studies will have implications for future high energy machines such as SSC and also the TeV Linear Colliders currently under study in Japan at KEK and at SLAC in the United States. The groups also have strong interest in neutrino masses, mixings and oscillations, and will study the implications of solar and atmospheric neutrino date of Kamiokande and other experiments for their implications, as well as neutrinos and axions in astrophysics and the early universe.