U.S.-Sweden Cooperative Research: High Energy Heavy Ion Interactions

该奖项将支持美国和 瑞典物理学家谈高能重离子 交互. R博士作者：Jeffrey Wilkes，Thompson H.伯内特和 华盛顿大学的杰里·J·洛德将继续 他们和K.N.博士的研究成果英格瓦·奥特伦德和他的 隆德大学的一个实验小组。 实验将 在日内瓦的欧洲核子研究中心重离子设施进行， 瑞士和美国布鲁克海文国家实验室 国家，并分析和减少数据将是 在个别大学进行。 的 重离子Si-28和S-32将被加速到 15-200 GeV/核子，然后导向乳胶室 探测器，它是核乳胶板阵列 允许对产生的粒子进行极其精确的观测 跟踪. 实验的主要目的是寻找 对于核物质的新状态夸克胶子等离子体， 理论上预测它最有可能是在 重离子碰撞 这项实验代表了一种独特的 有机会研究这种高密度相的物质，因为 新的CERN硫离子束将比 比以前任何加速器的粒子束都要有能量 原子序数大于Z=16的。 该项目结合了两个领先的专业知识， 国际研究小组在使用乳剂 研究核相互作用的技术。 的 建议的调查是重要和及时的， 最新的高能重离子束

This award will support ongoing collaboration between U.S. and Swedish physicists on the topic of high energy heavy ion interactions. Drs. R. Jeffrey Wilkes, Thompson H. Burnett and Jeri J. Lord of the University of Washington will continue their research efforts with Dr. K.N. Ingvar Otterlund and his laboratory group at the University of Lund. Experiments will be performed at the CERN heavy ion facility in Geneva, Switzerland, and Brookhaven National Laboratory in the United States, and the analysis and reduction of the data will be conducted at the respective individual universities. The heavy ions Si-28 and S-32 will be accelerated to energies of 15-200 GeV/nucleon and then directed onto emulsion chamber detectors, which are arrays of nuclear emulsion plates permitting extremely precise observations of produced particle tracks. The major purpose of the experiment will be to search for the new state of nuclear matter, the quark-gluon plasma, which is predicted theoretically to be most likely created in heavy ion collisions. The experiment represents a unique opportunity to study this high density phase of matter, since the new CERN sulfur ion beam will be nearly 50 times more energetic than any previous accelerator beams of particles having atomic numbers greater than Z=16. This project combines the expertise of two of the leading international research groups in the use of emulsion techniques for the study of nuclear interactions. The proposed investigation is important and timely in making use of newly available energetic beams of heavy ions.