RUI: Studies of Relativistic Heavy Ions Collisions in ALICE at the LHC

RUI：大型强子对撞机 ALICE 中相对论性重离子碰撞的研究

• 批准号: 1613118
• 负责人: Edmundo Garcia-Solis
• 金额: $ 23万
• 依托单位: Chicago State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2022-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1613118&HistoricalAwards=false
• 关键词: RUI; Studies; Relativistic; Heavy; Ions

It is a well-established fact that protons and neutrons are made up of smaller constituents called quarks and gluons. In collisions using two beams of heavy nuclei, a new state of matter is formed, called the quark-gluon plasma (QGP). This project will answer fundamental questions about the QGP, such as how matter is transformed from a collection of protons and neutrons to a free state where quarks and gluons can travel through space unhindered, much like they did in the primordial soup of matter following the Big Bang. The goal of this proposal is to the dynamics of the QGP in the presence of a high-velocity quark traveling through this medium. This provides more information on the flow of quarks and gluons in this unique state of matter. The research will be carried out at the European Organization for Nuclear Research (CERN) using the ALICE detector.The focus of the Heavy Ion program at CERN is to understand the behavior of matter at very high density, corresponding to conditions a fraction of a second after the Big Bang, when a hot, dense medium of quarks and gluons existed. The goal is to recreate and study these conditions via colliding nuclei at relativistic kinetic energies. Chicago State University will contribute to this effort by working on the physics analysis of jets containing quarkonia and strange particles. This study investigates the production mechanism of quarkonia and strangeness production in proton-proton collisions and the response of the quark-gluon medium to jet energy deposition in lead-lead collisions. The project also includes an R&D contribution to the construction of the Fast Interaction Trigger (FIT); this effort will provide opportunities for the involvement of undergraduate students in hardware projects: the developing, testing and commissioning of particle detectors.

众所周知的事实是，质子和中子是由称为夸克和胶子的较小成分组成的。 在使用两束重核的碰撞中，形成了一种新的物质状态，称为夸克-胶子等离子体（QGP）。 该项目将回答有关 QGP 的基本问题，例如物质如何从质子和中子的集合转变为自由状态，夸克和胶子可以不受阻碍地穿越空间，就像它们在大宇宙之后的原始物质汤中所做的那样砰。该提案的目标是在存在高速夸克穿过这种介质的情况下研究 QGP 的动力学。 这提供了有关夸克和胶子在这种独特物质状态下流动的更多信息。该研究将在欧洲核研究组织 (CERN) 使用 ALICE 探测器进行。CERN 重离子项目的重点是了解极高密度物质的行为，对应于几分之一秒的条件大爆炸之后，存在夸克和胶子的热致密介质。目标是通过相对论动能的原子核碰撞来重建和研究这些条件。芝加哥州立大学将通过对含有夸克尼亚和奇怪粒子的射流进行物理分析来为这项工作做出贡献。 本研究研究了质子-质子碰撞中夸克尼亚的产生机制和奇异性产生以及夸克-胶子介质对铅-铅碰撞中射流能量沉积的响应。该项目还包括对快速交互触发器（FIT）建设的研发贡献；这项工作将为本科生参与硬件项目提供机会：粒子探测器的开发、测试和调试。