标题： 来自QED顶点的质量反常维数约束 $γ_m = 1$ 显示英文标题

标题： Constraint on the QED Vertex from the Mass Anomalous Dimension $γ_m = 1$

摘要： 我们讨论淬火QED中非微扰费米子-玻色子顶点的结构。 我们表明，可以构造一个顶点，它不仅确保费米子传播子是乘法重整化的，满足适当的Ward-Takahashi恒等式，对弱耦合重现微扰理论，并保证在动态生成质量时临界耦合是规范无关的，而且确保质量函数的反常维度值严格为1，正如Holdom和Mahanta所提出的。 显示英文摘要

摘要： We discuss the structure of the non-perturbative fermion-boson vertex in quenched QED. We show that it is possible to construct a vertex which not only ensures that the fermion propagator is multiplicatively renormalizable, obeys the appropriate Ward-Takahashi identity, reproduces perturbation theory for weak couplings and guarantees that the critical coupling at which the mass is dynamically generated is gauge independent but also makes sure that the value for the anomalous dimension for the mass function is strictly 1, as Holdom and Mahanta have proposed.