论文标题
动力学混合和希格斯低能量定理的一致理论
A Consistent Theory of Kinetic Mixing and the Higgs Low-Energy Theorem
论文作者
论文摘要
与新的Abelian仪表组的粒子物理学标准模型的扩展可以使新量规玻色子和超荷兰玻色子之间的动力学混合，从而与光子混合。在许多型号中，与超充电量表玻色子的混合仅捕获动力学混合项与光子的一部分，因为新的仪表玻色子还可以与$ su（2）_l $ g量玻色子的中性成分混合。我们考虑了这些贡献，并介绍了电子对称和破碎相中的一般阿伯利亚量规组的动力学混合的一致描述。我们确定了一个有效的操作员，该操作员将动力学混合与$ su（2）_l $，并证明如果带电的场仅从Electroweak Symmetry Breaking获得质量，则如何产生肾小函数的贡献。第一次，新型的Abelian仪表玻色子与标准模型Higgs玻色子的耦合的低能定理是从一环动力学混合振幅中得出的。
Extensions of the Standard Model of particle physics with new Abelian gauge groups allow for kinetic mixing between the new gauge bosons and the hypercharge gauge boson, resulting in mixing with the photon. In many models the mixing with the hypercharge gauge boson captures only part of the kinetic mixing term with the photon, since the new gauge bosons can also mix with the neutral component of the $SU(2)_L$ gauge bosons. We take these contributions into account and present a consistent description of kinetic mixing for general Abelian gauge groups both in the electroweak symmetric and the broken phase. We identify an effective operator that captures the kinetic mixing with $SU(2)_L$ and demonstrate how renormalisable contributions arise if the charged fields only obtain their masses from electroweak symmetry breaking. For the first time, a low-energy theorem for the couplings of novel Abelian gauge bosons with the Standard Model Higgs boson is derived from the one-loop kinetic mixing amplitudes.
