Elementary Particle Physics with the ATLAS Experiment at CERN's Large Hadron Collider

基本粒子物理与 CERN 大型强子对撞机的 ATLAS 实验

• 批准号: 2110964
• 负责人: Joshua Moss
• 金额: $ 22.5万
• 依托单位: University Enterprises, Incorporated
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2110964&HistoricalAwards=false
• 关键词: Elementary; Particle; Physics; ATLAS; Experiment

This project is devoted to research using ATLAS, a multi-purpose particle physics detector situated around the 27 km ring of the Large Hadron Collider (LHC) located at CERN, the European particle physics laboratory near Geneva, Switzerland. The goal of the project is to explore the fundamental nature of the universe in order to understand its evolution from the hot, dense soup of energy and matter existing soon after the Big Bang to the cool, diffuse universe we see today. The interactions and evolution of the fundamental constituents of the universe are well described by the Standard Model (SM) of Particle Physics that has been very successful in predicting the behavior of nature in the currently available energy regimes. The search for physics Beyond the SM (BSM) has been the focus of physicists since the discovery of the Higgs boson. The work of this award will contribute to the BSM search by exploring production mechanisms of the Higgs boson. In addition, the award will help construct the ongoing upgrade to the ATLAS detector as it prepares for the High-Luminosity upgrade to the LHC accelerator itself (HL-HLC).In this research award the California State University group will probe the SM by examining events which produce pairs of Higgs bosons. The aim is to measure the self-coupling of the Higgs boson, thought to be a sensitive probe of BSM. Technically, the CSU ATLAS group will work as members of the ATLAS Inner Tracker Upgrade (ITk) as part of the HL-LHC project. The ITk will be a crucial component of future ATLAS discoveries in the Higgs sector when the LHC upgrade is complete around 2026. This award will continue the CalState program of building the future workforce by providing training to the diverse students of the system, with hands-on work on the cutting-edge high energy physics program of ATLAS.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.

该项目致力于使用 ATLAS 进行研究，ATLAS 是一种多用途粒子物理探测器，位于瑞士日内瓦附近的欧洲粒子物理实验室 CERN 的大型强子对撞机 (LHC) 27 公里环周围。该项目的目标是探索宇宙的基本性质，以了解宇宙从大爆炸后不久存在的炽热、稠密的能量和物质汤到我们今天看到的凉爽、扩散的宇宙的演变。粒子物理学的标准模型（SM）很好地描述了宇宙基本成分的相互作用和演化，该模型在预测当前可用能量状态下的自然行为方面非常成功。自发现希格斯玻色子以来，寻找超越 SM（BSM）的物理学一直是物理学家关注的焦点。该奖项的工作将通过探索希格斯玻色子的产生机制为 BSM 搜索做出贡献。此外，该奖项还将帮助 ATLAS 探测器进行持续升级，为大型强子对撞机加速器本身 (HL-HLC) 的高亮度升级做准备。在这项研究奖项中，加州州立大学小组将通过检查产生希格斯玻色子对的事件来探测 SM。其目的是测量希格斯玻色子的自耦合，被认为是 BSM 的敏感探针。从技术上讲，作为 HL-LHC 项目的一部分，科罗拉多州立大学 ATLAS 小组将作为 ATLAS 内部跟踪器升级 (ITk) 的成员开展工作。 当大型强子对撞机升级在 2026 年左右完成时，ITk 将成为未来 ATLAS 希格斯粒子发现的重要组成部分。该奖项将继续加州州立大学的未来劳动力培养计划，为该系统的不同学生提供培训，并参与 ATLAS 尖端高能物理项目的实践工作。该奖项反映了 NSF 的法定使命，并通过使用 基金会的智力价值和更广泛的影响审查标准。