High Energy Collisions at Hadron Colliders

强子对撞机的高能碰撞

• 批准号: 0096707
• 负责人: Paul Grannis
• 金额: $ 281.62万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-04-15 至 2004-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0096707&HistoricalAwards=false
• 关键词: Energy; Collisions; Hadron; Colliders

This proposal requests support for the research program of the high energy physics group at SUNY Stony Brook to explore the character of particle interactions at the smallest distance scales achievable. The group proposes to exploit the upgraded D0 detector currently beginning Run II at the Fermilab Tevatron collider. In addition, the group requests support for its work on the ATLAS detector currently being built for the CERN Large Hadron Collider (LHC) and expected to become operational in 2006.For several years the main D0 responsibility of this group has been the liquid-argon calorimeter electronics upgrade to accommodate the higher luminosity and shortened inter-bunch time interval of the Run II Tevatron collider, and for the first and second hardware levels of the trigger, particularly for the preshower and tracking detectors. The group will pursue more incisive triggers on low transverse momentum electrons, such as those from J/Y and semileptonic b-quark decay. The group intends to focus its future physics analysis capability on issues of electroweak symmetry breaking. Specifically, they propose to work on the search for resonances decaying to b b-bar jets, including the Z boson and the hypothesized Higgs particle, as well as make refined measurements of the top-quark and W boson masses. The ATLAS work of the group will be centered on building and commissioning the high voltage feedthrough system for the liquid-argon calorimeters, and the design and test of the readout driver system used to collect trigger and offline data from the calorimeters. The group has entered the building phase for the high voltage system. The readout driver prototype boards are currently being tested and refined. During this award period, the group expects to bring both of these projects to completion. They also will continue their commitment to education and outreach through participation in the QuarkNet program, and several local initiatives related to high schools.

该提案要求支持纽约州立大学石溪分校高能物理小组的研究计划，以探索可实现的最小距离尺度下粒子相互作用的特征。该小组建议利用升级后的D0探测器，该探测器目前正在费米实验室的Tevatron对撞机上运行II期。此外，该小组还要求支持其目前正在为欧洲核子研究中心大型强子对撞机（LHC）建造的ATLAS探测器的工作，该探测器预计将于2006年投入使用。几年来，这个小组的主要职责是对液体-氩气量热计的电子设备进行升级，以适应Run II Tevatron对撞机更高的亮度和更短的束间时间间隔，以及触发器的第一和第二级硬件，特别是前置淋浴器和跟踪探测器。该小组将在低横向动量电子上寻找更尖锐的触发器，例如来自J/Y和半光子b-夸克衰变的电子。该小组打算将其未来的物理分析能力集中在电弱对称性破缺问题上。具体来说，他们建议研究衰减为b-bar喷流的共振，包括Z玻色子和假设的希格斯粒子，以及对顶夸克和W玻色子质量进行精确测量。该小组的ATLAS工作将集中在为液氩量热计建立和调试高压馈通系统，以及用于从量热计收集触发和离线数据的读出驱动系统的设计和测试。集团高压系统已进入建设阶段。读出驱动原型板目前正在测试和改进。在此期间，该集团预计将完成这两个项目。他们还将通过参与QuarkNet计划和一些与高中有关的地方倡议，继续致力于教育和推广。