Studies of Relativistic Heavy Ion Collisions at CERN and RHIC

CERN 和 RHIC 的相对论性重离子碰撞研究

• 批准号: 9511850
• 负责人: Thomas Humanic
• 金额: --
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-11-01 至 1999-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9511850&HistoricalAwards=false
• 关键词: Studies; Relativistic; Heavy; Ion; Collisions

9511850 Humanic Research will be carried out in relativistic heavy ion nuclear physics. Experiments will be conducted at the CERN, AGS, and RHIC heavy ion accelerators. The main goal of these experiments is to obtain evidence that collisions of relativistic heavy ions with sufficiently high energy produce a phase transition from normal nuclear matter into a new phase of matter made up of a large volume of free quarks and gluons. The above named accelerator facilities provide a range of energies needed to raise the energy density to more than ten times normal nuclear matter density, thought to be sufficient to produce deconfined quark and gluon matter. Experiments will be designed and carried out which look at the signatures of a quark-gluon plasma as reflected in particle momentum distributions and multiplicities of each type of particle produced. Development work will be carried out for purpose of producing a detector system with sufficient individual particle tracking and identification capability to handle the huge particle multiplicities expected from central heavy ion collisions. Some calculations will be carried out to determine expected interaction regions within the colliding systems. In addition, lower energy charge exchange reaction measurements will be completed which bear on the density dependence of nucleon-nucleon interactions. Research in these areas will advance our understanding of the underlying quark model of nucleons and mesons. These topics are among the most exciting in nuclear physics. Education of graduate students and postdocs is integral to this activity, as is development and construction of major state-of-the-art equipment ***

9511850将在相对论重离子核物理领域开展人文研究。实验将在CERN、AGS和RHIC重离子加速器上进行。这些实验的主要目的是获得证据，证明具有足够高能量的相对论重离子的碰撞会产生从正常核物质到由大量自由夸克和胶子组成的新物质的相变。上面提到的加速器设备提供了将能量密度提高到正常核物质密度的十倍以上所需的一系列能量，这被认为足以产生解禁闭的夸克和胶子物质。将设计和进行实验，观察夸克-胶子等离子体的特征，反映在粒子动量分布和产生的每种粒子的多重性中。将开展开发工作，以生产具有足够的单个粒子跟踪和识别能力的探测器系统，以处理中心重离子碰撞预计产生的巨大粒子多样性。将进行一些计算，以确定碰撞系统中预期的相互作用区域。此外，还将完成与核子-核子相互作用的密度相关的低能电荷交换反应测量。这些领域的研究将促进我们对核子和介子的潜在夸克模型的理解。这些话题是核物理学中最令人兴奋的话题之一。研究生和博士后教育是这项活动不可或缺的一部分，主要最先进设备的开发和建造也是不可或缺的*