Exploring Fundamental Physics in the Early and Late Universe

探索早期和晚期宇宙的基础物理学

基本信息

批准号：
1720332
负责人：
Mark Hertzberg
金额：
$ 21万
依托单位：
Tufts University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-09-01 至 2020-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1720332&HistoricalAwards=false
关键词：
Exploring Fundamental Physics Early Late

项目摘要

This award funds the research activities of Professor Mark P. Hertzberg at Tufts University.Decades of research in both particle physics and cosmology have led us to a set of so-called "Standard Models" which provide tremendously successful descriptions of the universe over a vast range of energy and length scales. However, future revolutions in physics will arise from tackling the various shortcomings of these models. In particular, some of the greatest mysteries that remain concern the nature of dark matter, the details of early-universe cosmology, and a deep understanding of the structure of gravitation. Professor Hertzberg's research will tackle these subjects through the formulation of theoretical models and the exploration of connections to experiment and data. As a result, research in this area advances the national interest by promoting fundamental scientific research into the nature of the universe. Furthermore, this project is envisioned to have significant broader impacts as it will involve postdocs and engage the public in an important way through public lectures and popular articles. More technically, Professor Hertzberg will investigate axion dark matter in galaxies, develop novel inflationary models that probe new physics, and investigate theories of spin-two particles. This involves the development of theoretical models that demand internal consistency and greement with data, all within the framework of effective field theory. The primary work on the dark-matter front is to determine the clumpiness, distribution, and possible evidence for axion dark matter. The primary work on the early-universe front is to determine if reasonable inflationary models exist that improve agreement with CMB data on large scales beyond the standard scale-invariant models. Finally, the primary objective on the gravity front is to determine if general relativity is the uniquely consistent effective theory of spin-two particles.

该奖项资助塔夫茨大学马克·P·赫茨伯格教授的研究活动。数十年的粒子物理学和宇宙学研究使我们得出了一套所谓的“标准模型”，这些模型对宇宙的广阔范围提供了非常成功的描述。能量范围和长度尺度。然而，未来的物理学革命将通过解决这些模型的各种缺点而产生。特别是，仍然存在的一些最大的谜团涉及暗物质的本质、早期宇宙宇宙学的细节以及对引力结构的深入理解。赫茨伯格教授的研究将通过制定理论模型以及探索实验和数据的联系来解决这些主题。因此，该领域的研究通过促进对宇宙本质的基础科学研究来促进国家利益。此外，该项目预计将产生更广泛的影响，因为它将涉及博士后并通过公开讲座和热门文章以重要方式吸引公众。从技术上讲，赫茨伯格教授将研究星系中的轴子暗物质，开发探索新物理学的新颖暴胀模型，并研究自旋二粒子理论。这涉及理论模型的开发，要求内部一致性和数据一致性，所有这些都在有效场理论的框架内。暗物质前沿的主要工作是确定轴子暗物质的团块、分布和可能的证据。早期宇宙前沿的主要工作是确定是否存在合理的暴胀模型，该模型可以提高与标准尺度不变模型之外的大尺度 CMB 数据的一致性。最后，引力前沿的主要目标是确定广义相对论是否是自旋二粒子唯一一致有效的理论。