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

该奖项资助了北方伊利诺伊大学斯蒂芬·P·马丁教授的研究活动。该项目将促进我们对物质基本组成部分以及它们之间相互作用的力量的认识。 在基本的亚原子粒子中，希格斯玻色子是2012年发现的，现在是大型强子对撞机的密集研究对象。 教授马丁将追求希格斯玻色子和其他亚原子粒子的增强理解。 他还将研究扩展已知粒子和力的理论，包括被称为超对称的可能性。 这个理论的中心预言是，对于每一种已知类型的基本粒子，一定存在另一种具有非常相似性质但重得多的类型。 马丁教授将致力于在大型强子对撞机上发现这种新粒子的策略，并提出未来的对撞机实验。 他也将对那些提供超对称性替代方案的理论做同样的工作。 这些活动通过促进我们对大自然如何在最基本层面运作的理解，促进了国家利益。 该项目也将产生更广泛的影响。 马丁教授将指导和培训学生在研究生和本科生水平的相关研究方法。 他还将通过在当地和区域科学博览会上的展览和评审，与大学预科生和其他感兴趣的公众直接互动。更技术性的是，马丁将计算多圈修正，以控制与希格斯玻色子相关的标量场的有效势。 他将扩展现有的结果在一般非超对称理论的有效潜力，包括超对称模型，使用正则化方法，尊重超对称不变性。 他还将开发用于评估三圈粒子质量贡献的方法，包括希格斯玻色子和粒子物理标准模型的W和Z玻色子。 他将研究超对称的非最小理论，探索解决一个称为小层次问题的难题的可能性。 他将在未来的质子-质子和电子-正电子对撞机上研究超对称粒子的产生和衰变，以了解这些实验对新发现的影响。 他还计划继续研究非超对称理论中的新粒子，例如新的矢量轻子。该奖项反映了NSF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 award funds the research activities of Professor Stephen P. Martin at Northern Illinois University.This project will advance our knowledge of the basic building blocks of matter and the forces of interaction between them. Among the fundamental subatomic particles is the Higgs boson, which was discovered in 2012 and is now the subject of intense studies at the Large Hadron Collider. Professor Martin will pursue an enhanced understanding of the Higgs boson and other subatomic particles. He will also study theories that extend the known particles and forces, including a possibility known as supersymmetry. The central prediction of this theory is that for each of the known types of fundamental particles, there must be another type with very similar properties but which are much heavier. Professor Martin will work on strategies for discovering such new particles at the Large Hadron Collider and proposed future collider experiments. He will also do the same for theories that provide alternatives to supersymmetry. These activities advance the national interest by promoting our understanding of how nature works at the most fundamental level. This project will also have broader impacts. Professor Martin will mentor and train students at both the graduate and undergraduate levels on relevant methods of research. He will also interact directly with pre-college students and other interested members of the public through exhibitions and judging at local and regional science fairs.More technically, Martin will compute multi-loop corrections to the effective potential that governs the scalar field associated with the Higgs boson. He will extend existing results for the effective potential in general non-supersymmetric theories to include supersymmetric models, using regularization methods that respect supersymmetric invariance. He will also develop methods for evaluating three-loop contributions to particle masses, including the Higgs boson and the W and Z bosons of the Standard Model of particle physics. He will study non-minimal theories of supersymmetry, exploring possibilities that address a puzzle called the little hierarchy problem. He will study the production and decay of supersymmetric particles at proposed future proton-proton and electron-positron colliders, to understand the reach of those experiments for making new discoveries. He also plans to continue studies of new particles in non-supersymmetric theories, including, for example, new vector-like leptons.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.