A Consortium for the Acquisition of Equipment to Complete a Proton Detector for the DZero Experimental Particle Physics Program

采购设备以完成 DZero 实验粒子物理计划质子探测器的财团

• 批准号: 0320554
• 负责人: Gerald Blazey
• 金额: $ 12.52万
• 依托单位: Northern Illinois University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0320554&HistoricalAwards=false
• 关键词: Consortium; Acquisition; Equipment; Complete; Proton

This proposal from the Northern Illinois University (NIU) and University of Texas at Arlington (UTA) groups, requests funds to fully equip a new proton sub-detector for an accelerator-based high-energy physics experiment, the D0 experiment at Fermilab. The Fermilab Tevatron is the world's highest energy collider, and will remain at the energy frontier for much of the decade. The D0 and CDF experiments will lead the U.S. high-energy frontier physics program during this period, and it is important to maximize their capabilities. The D0 experiment is a large international collaboration that has significantly advanced the understanding of particle physics through the discovery of the top quark and via a broad range of Standard Model tests and new phenomena searches. One of the new and most surprising results from Tevatron Run I was the existence of large rapidity gaps (regions with no produced particles) between high transverse energy jets. Improved understanding of this new field of hard diffraction, which probes otherwise inaccessible details of the strong force and vacuum excitation, requires new detectors for tagging and measuring scattered protons. The experience from Run I resulted in the proposal for a new component, the Forward Proton Detector (FPD), to be added to the baseline upgrade of the D0 detector. The FPD consists of momentum spectrometers that make use of accelerator magnets along with points measured on the track of the scattered proton to calculate its momentum and scattering angle. Preliminary results from a partially equipped FPD are very promising and show that the detector is working as designed. The funding of this proposal will allow UTA and NIU to purchase the phototubes and electronics needed to fully equip the FPD and to provide a graduate student to commission and maintain the new detectors.Broader Impact: Located at Fermilab, the FPD will be widely accessible to students from more than 60 institutions of higher learning in the U.S. and abroad. The FPD will be an important component of vigorous outreach programs already in place at UTA and NIU. Graduate students will play a critical role in the installation and commissioning of this new detector. The knowledge gained from this experiment will lead to a deeper understanding of the basic forces of nature.

这项提案来自北方伊利诺伊大学（NIU）和德克萨斯大学阿灵顿分校（UTA）的研究小组，要求提供资金，为费米实验室基于加速器的高能物理实验（D0实验）配备一个新的质子子探测器。费米实验室Tevatron是世界上能量最高的对撞机，并将在十年的大部分时间内保持在能源前沿。D0和CDF实验将在此期间领导美国高能前沿物理计划，重要的是要最大限度地发挥其能力。D0实验是一项大型国际合作，通过发现顶夸克以及广泛的标准模型测试和新现象搜索，大大推进了对粒子物理学的理解。Tevatron运行I的一个新的和最令人惊讶的结果是在高横向能量射流之间存在大的快度间隙（没有产生粒子的区域）。 为了更好地理解硬衍射这一新领域，需要新的探测器来标记和测量散射质子。硬衍射可以探测强力和真空激发的其他细节。根据运行I的经验，建议将一个新组件（前向质子探测器（FPD））添加到D0探测器的基线升级中。FPD由动量谱仪组成，动量谱仪利用加速器磁体沿着在散射质子轨道上测量的点来计算其动量和散射角。部分配备的FPD的初步结果是非常有希望的，并表明该探测器是按设计工作。这项提案的资金将允许UTA和NIU购买所需的光电管和电子设备，以充分装备FPD，并提供一名研究生来调试和维护新的探测器。更广泛的影响：FPD位于费米实验室，将广泛提供给来自美国和国外60多所高等院校的学生。FPD将是UTA和NIU已经实施的积极推广计划的重要组成部分。研究生将在这一新探测器的安装和调试中发挥关键作用。从这个实验中获得的知识将导致对自然界基本力量的更深入的理解。