Phenomenology of Electroweak Symmetry Breaking, Supersymmetry, and the Frontiers of the Standard Model

电弱对称破缺、超对称性和标准模型前沿的现象学

• 批准号: 1719273
• 负责人: Stephen Martin
• 金额: $ 15万
• 依托单位: Northern Illinois University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-01 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1719273&HistoricalAwards=false
• 关键词: Phenomenology; Electroweak; Symmetry; Breaking; Supersymmetry

This award funds the research activities of Professor Stephen P. Martin at Northern Illinois University. This project will advance our knowledge of how the basic building blocks of nature interact. This includes enhanced understanding of the known fundamental subatomic particles, including the Higgs boson discovered in 2012. Martin will also study theories that go beyond the known fundamental sub-atomic particles, including a possibility known as supersymmetry. The key prediction of supersymmetry is that for each of the known fundamental particle types, there must be a "partner" with very similar properties but a much larger mass. Martin will work on strategies for discovering these new particles in experiments including the Large Hadron Collider and proposed future colliders, and will do the same for theories that provide alternatives to supersymmetry. As a result, support for this proposal advances the national interest by promoting the progress of science in one of its most fundamental directions: the discovery and understanding of new physical law. Martin will also mentor students at both the graduate and undergraduate levels on research methods, participate in the education and training of high-school teachers, and interact directly with pre-college students through judging at local and regional science fairs.More technically, the proposed research will study the equations that relate the underlying parameters of the Standard Model and the quantities measured at colliders. This will be accomplished by performing relevant calculations in a more accurate and detailed approximation than ever before. These calculations, together with more accurate data on the Higgs boson that will be obtained by the Large Hadron Collider, will allow us to quantitatively understand the dynamics of the Higgs field and test the consistency of the minimal Standard Model of particle physics. Martin will study and improve formulas relating the masses of the Higgs boson and other particles to the Higgs self-interaction strength and its interactions with other particles. Martin will also continue to study supersymmetry, which now is significantly constrained, but certainly not ruled out, by Large Hadron Collider data. Martin will work on strategies for maximizing the experimental reach of the Large Hadron Collider for new particles, by investigating novel signatures and areas of parameter space where discovery or exclusion might be particularly difficult or subtle. Martin will develop more accurate calculations and theoretical tools that will aid in the interpretation and understanding of a future discovery of supersymmetry or new stronger limits on supersymmetry, by relating the masses and interactions of the new particles to the parameters of the underlying theory. This research will affect the interpretation of experiments at the CERN LHC proton-proton collider as well as a variety of dark matter detection experiments. These experiments are major science infrastructures, and employ many researchers and students at all levels in several different science and engineering fields.

该奖项资助北方伊利诺伊大学斯蒂芬·P·马丁教授的研究活动。这个项目将推进我们对自然的基本组成部分如何相互作用的认识。 这包括增强对已知基本亚原子粒子的理解，包括2012年发现的希格斯玻色子。 马丁还将研究超越已知基本亚原子粒子的理论，包括被称为超对称的可能性。 超对称性的关键预测是，对于每一种已知的基本粒子类型，都必须有一个具有非常相似性质但质量大得多的“伙伴”。 马丁将致力于在实验中发现这些新粒子的策略，包括大型强子对撞机和拟议中的未来对撞机，并将为提供超对称替代方案的理论做同样的事情。 因此，支持这一建议通过促进科学在其最基本的方向之一的进步来促进国家利益： 发现和理解新的物理定律。 马丁还将指导研究生和本科生的研究方法，参与高中教师的教育和培训，并通过在当地和地区科学博览会上担任评委与大学预科生直接互动。更技术性的是，拟议的研究将研究标准模型的基本参数与对撞机测量的数量之间的关系。 这将通过以比以往任何时候都更准确和详细的近似值进行相关计算来实现。 这些计算，再加上大型强子对撞机将获得的关于希格斯玻色子的更精确的数据，将使我们能够定量地理解希格斯场的动力学，并测试粒子物理学最小标准模型的一致性。 马丁将研究和改进希格斯玻色子和其他粒子的质量与希格斯自相互作用强度及其与其他粒子的相互作用的公式。 马丁还将继续研究超对称性，它现在受到大型强子对撞机数据的显著限制，但肯定不会被排除在外。 马丁将致力于最大限度地提高大型强子对撞机对新粒子的实验范围的策略，通过研究新的签名和参数空间的领域，发现或排除可能特别困难或微妙。 马丁将开发更准确的计算和理论工具，这将有助于解释和理解未来发现的超对称性或新的更强的限制超对称性，通过将新粒子的质量和相互作用与基础理论的参数相关联。 这项研究将影响欧洲核子研究中心LHC质子-质子对撞机实验的解释，以及各种暗物质探测实验。 这些实验是重要的科学基础设施，并雇用了许多不同科学和工程领域的各级研究人员和学生。

项目成果

Two-loop effective potential for generalized gauge fixing

通用仪表固定的双环有效潜力

• DOI: 10.1103/physrevd.98.076008
• 发表时间: 2018
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Martin, Stephen P.;Patel, Hiren H.
• 通讯作者: Patel, Hiren H.

Evaluation of the general three-loop vacuum Feynman integral

• DOI: 10.1103/physrevd.95.016008
• 发表时间: 2016-10
• 期刊: Physical Review D
• 影响因子: 5
• 作者: S. P. Martin;D. G. Robertson

Effective potential at three loops

三环有效电位

• DOI: 10.1103/physrevd.96.096005
• 发表时间: 2017
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Martin, Stephen P.

Mixed gluinos and sgluons from a new SU(3) gauge group

来自新 SU(3) 规格组的混合 gluinos 和 sgluons

• DOI: 10.1103/physrevd.101.035019
• 发表时间: 2020
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Martin, Stephen P.

Quasifixed points from scalar sequestering and the little hierarchy problem in supersymmetry

标量隔离的准不动点和超对称中的小层次问题

• DOI: 10.1103/physrevd.97.035006
• 发表时间: 2018
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Martin, Stephen P.