Constraining Physics Beyond the Standard Model with Cosmological Observations

通过宇宙学观测将物理学限制在标准模型之外

• 批准号: 2310572
• 负责人: Mark Hertzberg
• 金额: $ 25.5万
• 依托单位: Tufts University
• 依托单位国家: 美国
• 项目类别: Continuing 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=2310572&HistoricalAwards=false
• 关键词: Constraining; Physics; Beyond; Standard; Model

This award funds the research activities of Professor Mark Hertzberg at Tufts University.Cosmology is an essential tool to learn about physics beyond the standard model. With no direct evidence of new physics at colliders, we can use astronomical data to gain clues about new physics. Perhaps the most significant questions are: What new physics was at play in the early universe? What types of particles and interactions are in the dark matter and gravitational sectors? This project will investigate specific sub-topics within these important questions by first developing theoretical models and then comparing to astrophysical and cosmological data. This research therefore advances the national interest by pursuing basic scientific questions of high significance. The project will also have broader impacts. It will involve graduate and undergraduate students who will play an important role in analyzing models and performing computational work; this will help them develop essential research skills. Professor Hertzberg will also actively advance these topics within the larger physics community.More technically, Professor Hertzberg will seek to place constraints on the couplings of the cosmic inflaton to the Standard Model Higgs and other new particles --- constraints which must be satisfied in order to avoid instability. As part of this research, Professor Hertzberg will also explore the implications of (multi-field) ultralight dark matter and explore new physics in the strong gravity regime. He will also study the behavior of such light axion dark matter models, including their behavior within the galaxy, and constrain new effective operators between astrophysical bodies.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.

该奖项资助塔夫茨大学马克·赫茨伯格教授的研究活动。宇宙学是了解超越标准模型的物理学的必要工具。在对撞机上没有新物理的直接证据的情况下，我们可以利用天文数据来获得关于新物理的线索。也许最重要的问题是：在早期宇宙中，有哪些新的物理学在起作用？暗物质和引力区域有哪些类型的粒子和相互作用？这个项目将通过首先开发理论模型，然后与天体物理和宇宙学数据进行比较，来研究这些重要问题中的特定子主题。因此，这项研究通过追求具有重要意义的基本科学问题来促进国家利益。该项目还将产生更广泛的影响。它将涉及研究生和本科生，他们将在分析模型和执行计算工作方面发挥重要作用；这将帮助他们发展基本的研究技能。赫茨伯格教授还将在更大的物理界积极推动这些主题。更严格地说，赫茨伯格教授将寻求对宇宙膨胀与标准模型希格斯和其他新粒子的耦合施加约束-必须满足这些约束才能避免不稳定。作为这项研究的一部分，赫茨伯格教授还将探索(多场)超轻暗物质的含义，并探索强引力条件下的新物理。他还将研究这种光轴子暗物质模型的行为，包括它们在银河系内的行为，并限制天体物理实体之间新的有效操作符。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Constraints on inflaton Higgs field couplings

暴胀希格斯场耦合的约束

• DOI: 10.1103/physrevd.108.103524
• 发表时间: 2023
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Yang, Jessie;Hertzberg, Mark P.
• 通讯作者: Hertzberg, Mark P.