Suoersymmetry, Superstrings and Phenomenology

索尔对称性、超弦和现象学

• 批准号: 0354401
• 负责人: Rabindra Mohapatra
• 金额: $ 96.3万
• 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: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0354401&HistoricalAwards=false
• 关键词: Suoersymmetry; Superstrings; Phenomenology

Abstract0354401 PI: MohapatraThe goal of the research being undertaken by the Maryland Particle TheoryGroup is to search for the ultimate laws that govern the nature of particles, forces and the Universe. The focus will be to explore the nature of physics beyond the successful standard model of strong, weak and electromagnetic forces using results from neutrino physics and theoretical ideas such as supersymmetry, grand unification and string theory. Neutrino masses have already provided some clues as to the nature of this new physics. The current and planned experiments at various laboratories around the world using neutrinos, protons, electrons and muons are expected to add considerably to this knowledge. The plan is to use these results and predict new ones to test the different theoretical ideas mentioned above. This research will also explore ways to resolve some of the puzzles of cosmology such as nature of dark matter in the universe, origin of matter-anti-matter asymmetry, nature of the expansion of the early universe etc. using the same theoretical ideas and propose ways to test them in different experiments.The hope is that this research will provide answers to some of the outstanding questions of modern physics such as (i) what is the origin of the mass of fundamental particles; (ii) are all the diverse forces of nature such as gravity, electro-magnetism, weak and nuclear forces really different manifestations of one force that operates at very short distances; (iii) why are some forces weaker than others; (iv) are the most elementary building blocks of matter point-like particles or strings; (v) are there extra hidden space dimensions in nature? There will be strong participation in this research by post-doctoral associates, graduate students as well as undergraduate and high school students. It will therefore provide training for future scientists by bringing them into close contact with the frontier areas of research in this exciting field.

马里兰粒子理论小组正在进行的这项研究的目标是寻找支配粒子、力和宇宙本质的终极定律。重点将是利用中微子物理学和超对称、大统一和弦理论等理论思想的结果，探索成功的强、弱和电磁力标准模型之外的物理本质。中微子的质量已经为这种新物理学的本质提供了一些线索。在世界各地不同的实验室中，目前正在进行的和计划进行的使用中微子、质子、电子和介子的实验有望大大增加这方面的知识。计划是使用这些结果并预测新的结果来测试上述不同的理论观点。本研究还将探索如何用相同的理论思想来解决宇宙中暗物质的性质、物质-反物质不对称的起源、早期宇宙膨胀的性质等宇宙学难题，并提出在不同实验中进行检验的方法。人们希望这项研究能为现代物理学中一些悬而未决的问题提供答案，比如(1)基本粒子质量的起源是什么；（ii）所有不同的自然力，如重力、电磁力、弱力和核力，真的是在很短的距离上作用的同一种力的不同表现吗？（iii）为什么有些力量比其他力量弱；（iv）是物质最基本的组成部分，点状粒子或弦；（五）自然界是否存在额外的隐藏空间维度？博士后助理、研究生、本科生和高中生将大力参与这项研究。因此，它将为未来的科学家提供培训，使他们密切接触这一令人兴奋的领域的前沿研究领域。