Theory and Phenomenology at the Frontiers of the Standard Model

标准模型前沿的理论和现象学

• 批准号: 2310533
• 负责人: Stephen Martin
• 金额: $ 18万
• 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: 2023
• 资助国家: 美国
• 起止时间: 2023-08-15 至 2026-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2310533&HistoricalAwards=false
• 关键词: Theory; Phenomenology; Frontiers; Standard; Model

This award funds the research activities of Professor Stephen P. Martin at Northern Illinois University.This project will advance our knowledge of the particles that are the basic constituents of matter, and the physical laws governing their interactions at very short distance scales. An important way of gaining new understanding of these topics is to study collisions of particles at very high energies. The Large Hadron Collider (LHC) at the CERN Laboratory in Geneva, Switzerand, is currently the most energetic collider facility in the world, and was responsible for discovering the Higgs boson particle in 2012. It is now taking more data at a higher energy and faster rates, providing new chances for discovery. As part of his research, Professor Martin will pursue an enhanced understanding of the Higgs boson and other known particles, as well as develop strategies for detecting new unknown particles at the LHC and at planned future colliders. He will also perform calculations of unprecedented accuracy that predict and explain the implications of the known forces and proposed new forces. These activities will advance the national interest by improving our understanding of how nature works at the most fundamental level. This project will also have broader impacts. Martin will train and mentor university students at both the undergraduate and graduate levels on methods of scientific research. He will also interact directly with younger local students and other interested members of the public through science outreach exhibitions and judging at local and regional science fairs.More technically, Martin will continue his research on supersymmetric theories. These models predict that for each of the known types of fundamental particles, there must be another type with similar properties, but which are much heavier than those presently known. He will study the possible role in supersymmetric theories of axions, which can explain the absence of large CP-violating interactions in the strong nuclear force. Martin will develop search strategies for supersymmetric particles at the LHC, and at future experiments of various types, including proton-proton, electron-positron, and muon-antimuon colliders, with particular attention to compressed mass spectra which are known to be harder to probe. He will do the same for other new physics models, including those that predict new fermions with vector-like gauge interactions. He will work on multi-loop integrals in quantum field theories by developing new methods for their computation, with applications to precise evaluation of the basic parameters of particle physics, including the masses and interaction couplings of gauge bosons and the Higgs boson with each other and with quarks and 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.

该奖项用于资助北伊利诺伊大学Stephen P. Martin教授的研究活动。这个项目将推进我们对粒子的认识，粒子是物质的基本组成部分，以及在非常短的距离尺度上控制它们相互作用的物理定律。获得对这些问题的新认识的一个重要途径是研究高能粒子的碰撞。位于瑞士日内瓦的欧洲核子研究中心实验室的大型强子对撞机（LHC）是目前世界上能量最高的对撞机设备，2012年发现希格斯玻色子粒子。它现在以更高的能量和更快的速度获取更多的数据，为发现提供了新的机会。作为他研究的一部分，马丁教授将致力于加深对希格斯玻色子和其他已知粒子的理解，并制定在大型强子对撞机和计划中的未来对撞机中探测新的未知粒子的策略。他还将以前所未有的精度进行计算，预测和解释已知力和提出的新力的含义。这些活动将提高我们对自然如何在最基本的层面上运作的理解，从而促进国家利益。该项目还将产生更广泛的影响。马丁将对本科生和研究生进行科学研究方法方面的培训和指导。他亦会透过科学推广展览及在本地及区域科学展览中担任评审，直接与本地年轻学生及其他感兴趣的市民互动。在技术方面，马丁将继续他对超对称理论的研究。这些模型预测，对于每一种已知类型的基本粒子，一定存在另一种具有相似性质的粒子，但比目前已知的粒子重得多。他将研究轴子在超对称理论中的可能作用，这可以解释在强核力中没有大的cp违反相互作用。马丁将在大型强子对撞机和未来各种类型的实验中开发超对称粒子的搜索策略，包括质子-质子，电子-正电子和介子-反介子对撞机，特别关注已知难以探测的压缩质谱。他将为其他新的物理模型做同样的工作，包括那些预测新的费米子具有向量型规范相互作用的模型。他将通过开发新的计算方法来研究量子场论中的多环积分，并应用于粒子物理的基本参数的精确评估，包括规范玻色子和希格斯玻色子彼此之间以及与夸克和轻子之间的质量和相互作用耦合。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。