Suoersymmetry, Superstrings and Phenomenology

马里兰州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的结果和超对称、大统一和弦理论等理论思想，在成功的强力、弱力和电磁力标准模型之外探索物理学的本质。中微子质量已经为这一新物理的性质提供了一些线索。目前和计划在世界各地的不同实验室进行的使用中微子、质子、电子和µ子的实验预计将大大增加这方面的知识。该计划是利用这些结果并预测新的结果来检验上述不同的理论观点。这项研究还将探索用相同的理论观点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的方法，并提出在不同的实验中检验它们的方法。希望这项研究将为现代物理学的一些悬而未决的问题提供答案，例如：(I)基本粒子质量的起源；(Ii)各种自然力，如引力、电磁力、弱力和核力是否真的是在很短距离内工作的一种力的不同表现形式；(Iii)为什么有些力比其他力弱；(Iv)物质的最基本构件是点状粒子或弦；(V)自然界中是否存在额外的隐藏空间维度？博士后助理、研究生以及本科生和高中生将强烈参与这项研究。因此，它将使未来的科学家与这一令人兴奋的领域的研究前沿领域密切接触，从而为他们提供培训。

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.