论文标题
2HDM的对称性：不变的配方和后果
Symmetries of the 2HDM: an invariant formulation and consequences
论文作者
论文摘要
讨论了可以扩展到整个Lagrangian的两个higgs-doublet模型（2HDM）的对称性，即CP-Symerties CP1，CP2，CP3和HIGGS与家族对称性Z2，U（1）等。在质量和物理耦合的限制方面，有足够的必要条件，以尊重这些对称性中的每一个。每个对称性都可以通过几种替代情况实现，每种情况都是物理参数之间的一组关系。我们将证明，其中一些关系在重新归一化小组下是不变的，但其他关系则不是。通过分析电势和真空期望值之间的相互作用来说明与每个对称组相对应的情况。
Symmetries of the Two-Higgs-Doublet Model (2HDM) potential that can be extended to the whole Lagrangian, i.e. the CP-symmetries CP1, CP2, CP3 and the Higgs-family symmetries Z2, U(1) and SO(3) are discussed. Sufficient and necessary conditions in terms of constraints on masses and physical couplings for the potential to respect each of these symmetries are found. Each symmetry can be realized through several alternative cases, each case being a set of relations among physical parameters. We will show that some of those relations are invariant under the renormalization group, but others are not. The cases corresponding to each symmetry group are illustrated by analyzing the interplay between the potential and the vacuum expectation values.
