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.

该奖项资助了北方伊利诺伊大学的Stephen P. Martin教授的研究活动。该项目将推进我们对物质基本成分粒子的认识，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。 获得对这些主题的新理解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大的对撞机设施，曾在2012年负责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。作为他的研究的一部分，马丁教授将追求希格斯玻色子和其他已知粒子的增强理解，以及在大型强子对撞机和计划未来的对撞机检测新的未知粒子的发展战略。他还将进行前所未有的精确计算，预测和解释已知力量和拟议的新力量的影响。这些活动将通过提高我们对自然最根本运作方式的理解来促进国家利益。该项目也将产生更广泛的影响。马丁将培训和指导大学生在本科和研究生水平的科学研究方法。他亦会透过科学外展展览及在本地及地区科学展上担任评审，与本地年青学生及其他感兴趣的公众人士直接交流。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类似性质的粒子，但它们比目前已知的粒子重得多。他将研究轴子的超对称理论中可能的作用，这可以解释在强核力中没有大的CP破坏相互作用。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μ子-反μ子对撞机，特别关注压缩质谱，已知这是难以探测的。他将对其他新的物理模型做同样的事情，包括那些预测具有矢量样规范相互作用的新费米子的模型。他将通过开发新的计算方法来研究量子场论中的多圈积分，并应用于粒子物理学基本参数的精确评估，包括规范玻色子和希格斯玻色子的质量和相互作用耦合以及与夸克和轻子的相互作用耦合。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。