Strange Form Factors and Precision Standard Model Tests

奇怪的外形和精度标准模型测试

• 批准号: 0801305
• 负责人: Mark Pitt
• 金额: $ 27万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-15 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0801305&HistoricalAwards=false
• 关键词: Strange; Form; Factors; Precision; Standard

This grant supports research that seeks to answer a fundamental question about matter. What is the nature of any new physics not described by the Standard Model of electroweak physics? This question will be addressed by the Qweak experiment at the Thomas Jefferson National Accelerator Facility. It will measure the proton's neutral weak charge via parity-violating electron scattering at very low momentum transfer. The proton's weak charge has a well-defined prediction in the Standard Model; a precise measurement of it is sensitive to many popular scenarios for extending the Standard Model. Our group is responsible for the design and construction of three pieces of hardware for the Qweak experiment - a set of drift chambers, a rotation device for rotating the drift chambers to the different desired positions, and a set of luminosity monitor detectors. During the period of this grant, we will be completing construction, installation, and commissioning of the hardware. We will also carry out the commissioning and a good fraction of the production running of the experiment. The projects we are working on involve a wide range of hardware and software tasks that will contribute to the education of graduate and undergraduate students working on the project.

该赠款支持试图回答有关问题的基本问题的研究。 Electroweak物理学标准模型未描述的任何新物理学的性质是什么？ 托马斯·杰斐逊国家加速器设施的QWEAK实验将解决这个问题。 它将通过在非常低的动量转移下通过平均侵略电子散射来测量质子的中性弱电荷。 质子的弱电荷在标准模型中具有明确的预测。它的精确度量对扩展标准模型的许多流行场景敏感。 我们的小组负责为QWEAK实验设计和构建三个硬件 - 一组漂移室，将漂移室旋转到不同所需位置的旋转设备以及一组光度监视器检测器。 在这笔赠款期间，我们将完成硬件的施工，安装和调试。 我们还将进行实验生产运行的大量调试。 我们正在从事的项目涉及各种硬件和软件任务，这将有助于研究该项目的研究生和本科生的教育。