Upgrade of CMS Level 1 trigger by addition of Pixel Detector data, and search for SM Higgs boson at CMS

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该奖项将资助内布拉斯加州大学林肯分校的Kravchenko Ilya在大型强子对撞机上进行CMS实验的研究工作。该提案的重点是通过包含已经在L1的像素检测器的信息来升级CMS的1级（L1）触发器。1级触发器需要实时操作，并以40mhz的速率采样相互作用，以确定发生的相互作用是否具有物理学意义，是否应该保留以供进一步研究。该提案包括这种添加所需的研发，以及硬件的物理实现和测试。CMS升级计划分两个阶段进行。第一阶段应在四至五年内完成，该建议涵盖从设计和系统定义到并包括开始建造的所有阶段。第二阶段将需要额外的四至五年，本建议涵盖直至完成概念设计和详细定义项目所需的研究为止的期间。在CMS的L1触发系统中增加跟踪，并集成量热计和L1 μ子触发，将需要新颖的思维和开发新的算法和电子元件。该结果将有助于确保CMS物理项目的成功，促进收集更大、更清晰的数据集。该奖项还将资助CMS数据分析方面的小组工作。分析工作的第一步将是了解探测器和14tev pp碰撞的事件环境。这将通过测量W和Z属性来完成。一旦这项工作完成，我们的计划是继续调查WW/ZZ的最终状态。更遥远的目标是观察希格斯玻色子衰变到WW/ZZ，或者观察非标准模型粒子衰变到这些最终状态。研究项目还包括支持现有CMS硅像素探测器的运行和调试，以及CMS数据采集。该研究项目将支持内布拉斯加大学林肯分校物理和电气工程专业的本科生参与校园硅实验室的研发。该小组计划通过在本科生和研究生阶段举办关于大型强子对撞机物理的研讨会，扩大UNL学生的圈子。该项目是跨学科的，除了物理系外，还将涉及UNL的电气工程系。这项工作将需要与几所美国大学以及FNAL、CERN和PSI - Zurich的研究人员密切合作，扩大他们与UNL的联系。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This award will fund the research work of Kravchenko Ilya at the University of Nebraska - Lincoln on the CMS experiment at the LHC. The focus of the proposal is the upgrade of the Level 1 (L1) trigger of CMS by including information from the Pixel Detector already at L1. The Level 1 trigger needs to operate in real time and sample interactions at a 40 MHz rate making a determination if the interaction that took place is of physics interest and should be kept for further investigation. The proposal includes the R&D needed for such addition, as well as the physical implementation and testing of the hardware. The CMS upgrade is planned to be executed in two phases. The first phase should be completed in four to five years and this proposal covers all stages from the design and system definitions up to and including the start of construction. The second phase will take an additional four to five years and this proposal covers the period up to the completion of the conceptual design and studies needed to define the project in detail. The addition of tracking to the L1 trigger system of CMS, integrated with the calorimeter and L1 muon trigger, will require original thinking and development of new algorithms and electronics components. The outcome will help to ensure the success of the CMS Physics Program by facilitating collection of larger and cleaner data sets. This award will also fund the group effort in CMS data analysis. The first step in the analysis effort will be to gain understanding of the detector and the event environment of pp collisions at 14 TeV. This will be done by measuring W and Z properties. Once this work is done the plan is to proceed and investigate WW/ZZ final states. The more distant goal is the observation of Higgs boson decays to WW/ZZ, or observation of non-standard model particles decaying to these final states. The research program also involves supporting the operations and commissioning for the existing silicon Pixel Detector of CMS, and the CMS data taking. The research program will support the University of Nebraska - Lincoln undergraduate students of Physics and Electrical Engineering majors participation in the R&D at the Silicon Laboratory on campus. The group plans to reach broader circles of UNL students by giving seminars on LHC physics at the undergraduate and graduate levels. The project is cross-disciplinary, and will involve the Electrical Engineering Department of UNL in addition to the Physics Department. This effort will require close collaboration with several US universities, and researchers at FNAL, CERN and PSI - Zurich, expanding their ties to UNL.