Particle Physics, Gravity and Cosmology in Theories with Extra Dimensions

本课程将研究具有额外空间维度的理论的几个方面。主要的焦点将是理解这种模型对粒子和引力物理可能产生的可观测后果，也就是理解这种模型的现象学。其次，还将研究宇宙演化和这些模型的基本理论。额外维度的模型显示了解决粒子物理中一些最基本问题的新途径。这些可能包括解释为什么引力相互作用比其他粒子相互作用(如电磁)弱得多，甚至可能是理解爱因斯坦指出的宇宙常数问题的新方向。由于这些模型的潜在应用，研究它们并找出其中哪些可以描述我们的宇宙是非常重要的。这是这个项目的主要目标。

Several aspects of theories with extra spatial dimensions will be studied. The main focus will be understanding what the resulting observable consequences for particle and gravitational physics of such models could be, that is understanding the phenomenology of such models. Secondly, the cosmological evolution and the fundamental theory of these models will also be investigated.Models with extra dimensions have shown new avenues to resolve some of the most fundamental problems in particle physics. These include possible explanations for why gravitational interactions are so much weaker than other particle interactions (like electromagnetism), and perhaps even new directions toward understanding the cosmological constant problem pointed out by Einstein. Due to the potential applications of these models it is very important to study them and to find out which of these could describe our Universe. This is the main goal of this project.