LHC Theory Initiative

大型强子对撞机理论倡议

• 批准号: 1419008
• 负责人: Jonathan Bagger
• 金额: $ 33万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-08-01 至 2018-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1419008&HistoricalAwards=false
• 关键词: LHC; Theory; Initiative

This award funds the LHC Theory Initiative, a competitive national fellowship program supporting the training of postdoctoral fellows in theoretical particle physics.The ultimate goal of particle physics is to identify the fundamental principles that govern matter, energy, space and time. The Standard Model (SM) provides a well tested quantitative description of the known particles and forces. A body of evidence suggests that the SM is not complete, and that it is the low-energy limit of a more fundamental theory.The CERN Large Hadron Collider (LHC) began physics operations in 2010, and on July 4, 2012, the ATLAS and CMS collaborations announced discovery of a new resonance with a mass near 125 GeV. Subsequent running has confirmed that the new particle looks like the long-sought Higgs boson. CERN is in the process of doubling the LHC's energy and significantly increasing its luminosity. Physics goals include precision measurements of Higgs properties, as well as direct searches for new particles, especially dark matter. Accurate theoretical predictions are needed for the LHC to realize its full potential. For example, because of the LHC's high luminosity, it can be difficult to separate signals from backgrounds. The lowest-order predictions for such processes exhibit significant uncertainties that can be reduced by including higher orders in perturbation theory. Also, it is essential to explore signatures and strategies in depth to make the most of the new discoveries and to fully exploit the physics potential of this powerful experimental facility. This fellowship program will help ensure that the United States has the young theorists it needs to gain full benefit from the investment it has made in the LHC experimental facility.The activities proposed here are to provide calculational tools and theoretical results necessary to fully extract physics results from the LHC. Proposed activities include calculations of higher-order QCD and electroweak corrections in the SM and beyond-the-SM models, as well as the development of new, improved, shower algorithms. Also important is the development of robust and well-tested Monte Carlo tools to confront the data with theoretical models. Much remains to be done in these areas.

该奖项为LHC理论计划提供资金，该计划是一项竞争性的国家奖学金计划，支持理论粒子物理学博士后研究员的培训。粒子物理学的最终目标是确定支配物质，能量，空间和时间的基本原理。标准模型（SM）提供了已知粒子和力的经过良好测试的定量描述。2012年7月4日，欧洲核子研究中心的大型强子对撞机（LHC）开始运行，ATLAS和CMS合作宣布发现了一个新的共振，其质量接近125 GeV。随后的运行证实了新粒子看起来像长期寻找的希格斯玻色子。 CERN正在将LHC的能量加倍，并显着增加其亮度。 物理学目标包括精确测量希格斯粒子的性质，以及直接寻找新粒子，特别是暗物质。LHC需要精确的理论预测来实现其全部潜力。例如，由于大型强子对撞机的高亮度，很难从背景中分离出信号。这种过程的最低阶预测表现出显着的不确定性，可以减少包括高阶微扰理论。此外，必须深入探索特征和策略，以充分利用新发现，并充分利用这一强大实验设施的物理潜力。 该奖学金计划将有助于确保美国拥有所需的年轻理论家，以充分利用其在LHC实验设施上的投资。这里建议的活动是提供必要的计算工具和理论结果，以充分提取LHC的物理结果。拟议的活动包括计算高阶QCD和电弱修正的SM和超越SM模型，以及新的，改进的，淋浴算法的发展。同样重要的是，要开发出可靠的、经过良好测试的蒙特卡罗工具，以便将数据与理论模型进行比较。在这些领域仍有许多工作要做。