Construction of the PHOBOS Time-of-Flight Wall

PHOBOS 飞行时间墙的建造

• 批准号: 9603486
• 负责人: Frank Wolfs
• 金额: $ 32.81万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-01 至 2000-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9603486&HistoricalAwards=false
• 关键词: Construction; PHOBOS; Time; Flight; Wall

Construction of a detector for use in relativistic heavy ion experiments will be carried out. The detector will be sited at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. The detector, known as PHOBOS, will provide a first look at the behavior and decay of matter at the extreme energy densities that will be created in gold-on-gold collisions with energies of 100GeV/nucleon in the center-of-mass system. This work is aimed at characterizing the hypothesized quark-gluon plasma which is created in such energetic collisions, and in which quarks and gluons are thought to be deconfined, unlike the case in normal hadronic matter. Specific elements of the PHOBOS detector associated with the present activity include the particle identification system which will permit the different mesons coming from decay of the quark-gluon plasma to be separately identified, which is important to characterizing the properties of the plasma. The data gathered by PHOBOS will extend our knowledge of matter to energies and densities thought to have existed only in the first microseconds of the early universe. This topic is a high priority within US nuclear science, as established by the joint NSF/DOE Nuclear Science Advisory Committee in its 1996 Long Range Plan. Education of students and postdocs is a strong component of this experimental program.

将建造一个用于相对论重离子实验的探测器。 该探测器将安装在布鲁克海文国家实验室的相对论重离子对撞机上。 该探测器被称为PHOBOS，将首次观察物质在极端能量密度下的行为和衰变，这些能量密度将在质心系统中以100 GeV/核子的能量在金对金碰撞中产生。 这项工作的目的是描述在这种高能碰撞中产生的假设的夸克-胶子等离子体的特征，并且夸克和胶子被认为是去限制的，不像正常强子物质的情况。 与目前活动有关的PHOBOS探测器的具体组成部分包括粒子识别系统，该系统将允许分别识别来自夸克-胶子等离子体衰变的不同介子，这对表征等离子体的性质很重要。 PHOBOS收集的数据将扩展我们对物质的认识，使其能量和密度被认为只存在于早期宇宙的第一微秒。 这一主题是美国核科学中的一个高度优先事项，由NSF/DOE核科学咨询委员会在其1996年长期计划中确定。 学生和博士后的教育是这个实验计划的重要组成部分。