欧洲大型强子对撞机已经运行两年了，去年年底已经看到了Higgs粒子的迹象，有望在今年发现Higgs粒子。在未来数年到十年中，我们期待LHC以及其他实验如中微子实验给我们带来粒子物理学革命。因此，研究超出粒子标准模型以及如何在弦论中提出新的粒子物理思想都是重要方向。我们计划在本项目中研究以下问题：1、弦论如何解释一个较低质量的Higgs粒子；万一低能超对称发现，研究这个发现带来的一系列弦论问题。2、弦论特别是膜理论与低能有效场论的关系，如何在一些理论模型如F理论中实现一些粒子物理现象。3、弦论在宇宙学中的应用，特别是弦论中的暴涨模型。4、中微子的一些唯象和理论问题。大亚湾实验最近精确地确定了第三个混合角，给研究中微子唯象学注入了更多的信息，如何在弦论中理解PMNS混合矩阵？中微子CP破坏甚至CPT破坏在弦论中的实现。最后，万一中微子速度超光速（虽然可能性极小），如何解释？

The large hadron collider has already operated for two years, and some evidence of a relatively light Higgs was found last year, and it is promising to discover Higgs in this year.We expect that LHC physics as well as neutrino experiments will bring about revolution in particle physics. Hence, it is urgent to study physics beyond the standard model and to propose new ideas about particle physics in string theory. We plan to study the following problems: 1. How to understand a light Higgs in string theory； if low energy SUSY is to be discovered, we plan to study a series of problems this brings about in string theory. 2. The effective field theory in string theory and in brane theory, study some particle physics phenomena in F-theory. 3. Some applications of string theory in cosmology, in particular string inflation models. 4. Some neutrino phenomenology and theoretical problems. Daya Bay neutrino experiment recently accurately determined the third neutrino mixing angle, now we have more information about the PMNS matrix. How to numerically understand this matrix in string theory? Moreover, it is possible to realize neutrino CP even CPT violation in string theory. Finally, it is possible even though very unlikely that neutrinos sometimes surpass speed of light, how to theoretically understand this possibility