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

该项目致力于使用ATLAS进行研究，ATLAS是一个多用途粒子物理探测器，位于位于瑞士日内瓦附近的欧洲核子研究中心（CERN）的大型强子对撞机（LHC）的27公里环附近。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、密集的能量和物质汤到我们今天看到的凉爽、弥漫的宇宙的演变。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进化，该模型在预测当前可用的能量体系中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的研究做出贡献。此外，该合同将帮助构建正在进行的ATLAS探测器升级，因为它准备对LHC加速器本身进行高亮度升级（hl - hc）。在这项研究奖中，加州州立大学的研究小组将通过研究产生希格斯玻色子对的事件来探测SM。目的是测量希格斯玻色子的自耦合，希格斯玻色子被认为是BSM的敏感探测器。从技术上讲，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，作为HL-LHC项目的一部分。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在希格斯领域发现的关键组成部分。该奖项将通过为该系统的不同学生提供培训来继续加州州立大学建立未来劳动力的计划，并在ATLAS的尖端高能物理项目上动手工作。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

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.