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Explorations in Particle Theory and Cosmology

粒子论与宇宙学探索

基本信息

批准号：
1914731
负责人：
Raman Sundrum
金额：
$ 150万
依托单位：
University of Maryland, College Park
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-10-01 至 2022-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1914731&HistoricalAwards=false
关键词：
Explorations Particle Theory Cosmology

项目摘要

This award funds the research activities of Professors Kaustubh Agashe, Zackaria Chacko, Rabindra N. Mohapatra and Raman Sundrum at the University of Maryland, College Park. Their work will develop new theoretical mechanisms and models at the juncture of Relativity and Quantum Mechanics, and result in new templates for experimental exploration in diverse arenas. The experimental frontier ranges from searches for new particles at the CERN Large Hadron Collider and future colliders, to Dark Matter detection experiments, to particle physics signatures in the Cosmic Microwave Background and Large Scale Structure in the universe, to searches for gravitational waves from early universe phase transitions. This research seeks to improve our understanding of the fundamental laws of nature, lying at the root of the natural sciences, and thereby to benefit the national interest and our scientific civilization. In their research, the principal investigators will study several of the most promising theoretical frameworks for going beyond the standard model of particle physics, in which it is augmented by (a) extra 'warped' dimensions of spacetime, (b) 'mirror sectors' with similar structure to the standard model and mirror symmetries that relate them, (c) 'left-right' symmetric structure. They will also study the physics and cosmology of neutrinos, as well as models of "cosmic inflation", the growth spurt of the early universe. This project is also envisioned to have significant broader impacts. The PIs will involve graduate students and postdocs in their research, and thereby provide critical training for junior physicists beginning research in this field. They also intend to give public and high school lectures on their research results and aid in the development of materials for the scientific media. More technically, Professors Agashe and Sundrum will explore the physics of the warped extra-dimensional phase transition in the early universe, and its gravitational wave and collider phenomenology, as well as its role in generating the observed matter/antimatter asymmetry. Professor Sundrum will also develop theories of high-scale cosmic inflation compatible with the most recent precision cosmological data. The left-right symmetric scenario will be studied by Professor Mohapatra for its possible impact on flavor physics, neutrino physics and the matter/antimatter asymmetry. The physics of neutrinos will be studied by Professor Chacko in scenarios in which they are associated with compositeness, time-dependent couplings, or couplings to light Goldstone bosons.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Kaustubh Agashe、Zackaria Chacko、Rabindra N教授的研究活动。莫哈帕特拉和拉曼Sundrum在马里兰州大学，学院公园。他们的工作将在相对论和量子力学的结合点上开发新的理论机制和模型，并为不同领域的实验探索提供新的模板。实验前沿的范围从在欧洲核子研究中心大型强子对撞机和未来的对撞机上寻找新粒子，到暗物质探测实验，到宇宙微波背景和宇宙大尺度结构中的粒子物理特征，再到从早期宇宙相变中寻找引力波。这项研究旨在提高我们对自然科学基础的基本自然规律的理解，从而有利于国家利益和我们的科学文明。在他们的研究中，主要研究人员将研究几个最有前途的理论框架，以超越粒子物理学的标准模型，其中它被（a）时空的额外"扭曲"维度，（B）具有与标准模型相似结构的"镜像扇区"和与它们相关的镜像对称性，（c）"左右"对称结构。他们还将研究中微子的物理学和宇宙学，以及“宇宙膨胀”模型，即早期宇宙的增长。预计该项目还将产生更广泛的重大影响。 PI将涉及研究生和博士后在他们的研究，从而为初级物理学家开始在这一领域的研究提供关键的培训。他们还打算就其研究成果在公共和高中举办讲座，并协助为科学媒体开发材料。从技术上讲，Agashe和Sundrum教授将探索早期宇宙中扭曲的额外维度相变的物理学，以及引力波和对撞机现象学，以及它在产生所观察到的物质/反物质不对称性中的作用。Sundrum教授还将开发与最新精确宇宙学数据兼容的高尺度宇宙膨胀理论。莫哈帕特拉教授将研究左右对称的情况，以研究其对风味物理学、中微子物理学和物质/反物质不对称性可能产生的影响。Chacko教授将在中微子与复合性、时间依赖耦合或与轻戈德斯通玻色子耦合的情况下研究中微子物理。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。