Investigations in Proton-Proton Collisions at the Large Hadron Collider

大型强子对撞机质子-质子碰撞的研究

• 批准号: 2309950
• 负责人: Joey Huston
• 金额: $ 292万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-15 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2309950&HistoricalAwards=false
• 关键词: Investigations; Proton; Collisions; Large; Hadron

The ATLAS experiment operates at the highest energy collider in the world, the Large Hadron Collider (LHC) at the CERN laboratory near Geneva, Switzerland. The high energy collisions allow probes of the smallest distance scales and the recreation of the environment of the early universe. The LHC is both a discovery and a precision machine probing the standard model. The greatest discovery (so far) at the LHC has been the detection of the Higgs boson and the detailed measurement of its properties. The Michigan State University high energy physics group has been a member of the ATLAS collaboration since 1994 and has participated in the construction of many of the detector’s components and electronic systems. They have been involved in many physics analyses, including measurements of the Higgs boson, and other standard model final states, as well as searches for physics beyond the standard model that may result in a fundamental understanding of many of the open questions remaining in our understanding of the universe. These include why there is more matter than anti-matter and why gravity is so weak compared to the other forces. In addition to the physics goals, multiple education and outreach activities that target schoolchildren of various ages as well as the general public are planned.The work proposed in this award will improve the precision of standard model measurements, particularly those relating to the Higgs boson, the Z boson, and top quark production, in addition to fully exploring the parameter space of possible new physics. The scientific analyses can be broadly grouped into five general categories: the search for new, heavy resonances; the study of Higgs boson production and decay; the precision differential cross-section measurements of high mass Drell-Yan; the physics of top quarks; and the study of strong interactions, especially jet production in association with bosons and heavy quarks. With this award, the Run-2 analyses will be completed and extended using the data from Run-3, and important detector upgrades will be carried out as needed for ATLAS to collect data in the high luminosity era.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

Atlas实验在世界上最高的能量对撞机，瑞士日内瓦附近的CERN实验室的大型强子对撞机（LHC）运行。高能量碰撞允许最小的距离尺度和早期宇宙环境的娱乐性问题。 LHC既是发现的探索，也是探测标准模型的精确机器。 LHC上最大的发现（到目前为止）是对Higgs玻色子的检测以及其特性的详细测量。密歇根州立大学高能物理小组自1994年以来一直是Atlas合作的成员，并参与了许多探测器组件和电子系统的建设。他们参与了许多物理分析，包括对Higgs Boson的测量以及其他标准模型最终状态的测量，以及在标准模型之外的物理学搜索，这可能会导致对我们对宇宙理解中仍然存在的许多开放问题的基本了解。这些包括为什么比反物质更多的物质以及与其他力相比重力如此弱。除了物理目标外，还计划了针对各个年龄段的学童的多项教育和外展活动。该奖项中提出的工作还将提高标准模型测量的精度，尤其是与Higgs Boson，Z Boson和Top Quark生产有关的工作的精确度，此外还可以充分探索可能的新物理学的参数。科学分析可以广泛地分为五个一般类别：寻找新的，浓重的共鸣；希格斯玻色子生产和衰变的研究；高质量Drell-Yan的精确差分横截面测量值；顶级夸克的物理学；以及强烈的相互作用的研究，尤其是与玻色子和重夸克相关的喷气生产。通过此奖项，将使用Run-3的数据完成和扩展Run-2分析，并且将根据需要进行重要的探测器升级，以在高光度时代收集数据，以收集数据。该奖项反映了NSF的法定任务，并通过使用该基金会的知识分子和广泛的影响来评估NSF的法定任务，并被认为是珍贵的支持。