本项目的研究内容主要是探索宇宙中的重子数不对称问题。我们主要采用的是电弱重子数产生机制，它是在电弱相变的过程中产生重子数不对称。这个机制的两个必要条件是强一阶电弱相变和超出标准模型的CP破坏。强一阶电弱相变一般要求有超出粒子物理标准模型的新物理的存在，它的预测是在对撞机上能够看到新的粒子，探测到的三个希格斯相互作用耦合系数会相对标准模型有偏离。而超出标准模型的CP破坏受到电耦极矩实验的严格限制。本项目的具体研究内容包括：（1）强一阶电弱相变的对撞机探测，主要通过探测三个希格斯相互作用耦合系数；（2）系统研究CP破坏与电弱重子数产生机制实现的关系，以及CP破坏受到电耦极矩限制的计算; （3）分析强一阶电弱相变的具体实现方式和以及它与暗物质之间相互作用的关系。

The primary purpose of the project is the research of the baryon asymmetry of the universe. The preferred approach is the electroweak baryogenesis mechanism (EWBG)，wherein the baryon asymmetry is generated during the electroweak phase transition. The two ingredients of the mechanism are strong first order electroweak phase transition and CP violation beyond the standard model (SM). The first ingredient always require new physics beyond the SM, and the prediction are the detectable of new particles at colliders and deviation of the triple Higgs coupling in comparison with the SM. While the CP violation beyond the SM would be constrained by the electron dipole moment experiments strigently. The exact content of the project includes: (1) The collider search of the strong first order phase transition, especially the search of the triple Higgs coupling; (2) Systematically study of the relation between CP violation and realization of the EWBG; (3) The study of the specifically realization method of strong first order electroweak phase transition and its relation with the dark matter interaction.