Dynamics of ultradense matter produced in relativistic nuclear collisions

相对论核碰撞产生的超致密物质的动力学

• 批准号: 0140046
• 负责人: Bin Zhang
• 金额: $ 9.6万
• 依托单位: Arkansas State University Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0140046&HistoricalAwards=false
• 关键词: Dynamics; ultradense; matter; produced; relativistic

0140046ZhangDuring the initial stage of relativistic nuclear collisions, enormous amountof energy is deposited in the collision region and the temperature anddensity can be high enough that individual hadrons lose their identities.Instead of being confined in hadrons, quarks and gluons can now move"freely" in this collision region. The matter thus produced is called theQuark-Gluon Plasma. The transition between hadronic matter and theQuark-Gluon Plasma gives us insight into the interactions between quarks andgluons under extreme conditions. It is also useful for the understanding ofprocesses going on in other high temperature and/or high density regions,for example, in the early Universe and in the cores of neutron stars. Toextract information about the Quark-Gluon Plasma from the experimentalobservables, to bridge the initial quark and gluon distributions and thefinal hadron distributions, the PI will investigate the effects of thespace-time evolution of the strongly interacting matter produced inrelativistic collisions. In particular, a transport model approach will befurther developed and used as the major theoretical tool for a detailedstudy of the transient formation and evolution of the finite size,ultradense system produced in relativistic nuclear collisions withnonequilibrium, viscous effects automatically taken into account. Theresearch will advance the understanding of strong interaction physics thatis the focus of current experiments at the Relativistic Heavy Ion Colliderat Brookhaven National Laboratory and the nuclear physics program at thefuture Large Hadron Collider at CERN.

0140046zhangding构成了相对论核冲突的初始阶段，巨大的能量被沉积在碰撞区域，温度和密度可以足够高，以至于单个黑龙的身份失去其身份。限制在黑龙，夸克和Gluons中可以“自由地移动”在这个碰撞区域中。因此产生的物质称为Quark-Gluon等离子体。 HADRONIC物质与Thequark-Gluon等离子体之间的过渡使我们深入了解了极端条件下夸克和glu的相互作用。它对于理解在其他高温和/或高密度区域（例如在早期宇宙和中子恒星核心）中进行的过程也很有用。从实验观用物中提取有关夸克 - 胶状等离子体的信息，以弥合初始夸克和gluon分布以及最终的强子分布，PI将研究产生的强烈相互作用物质的thespace时间演化的影响。特别是，将开发并将运输模型方法作为主要理论工具，以详细研究有限大小的瞬时形成和演变，即使用Nononequilibrium，Nononequilibrium，Nononequil，粘性效应自动考虑的相对论核碰撞中产生的超高度系统。 Theresearch将提高对强烈相互作用物理学的理解，这是当前实验在Cern的TheFuture大型强子对撞机的相对论重离子碰撞的Brookhaven国家实验室和核物理计划。