论文标题
复杂标量电动多重多重的双环β函数
Two-loop Beta Function for Complex Scalar Electroweak Multiplets
论文作者
论文摘要
我们介绍了提供SU（2）的不可减至表示形式的复杂标量场的可重新分解四点相互作用的一般形式，并得出了一组代数身份，以促进高阶辐射校正的计算。作为一个应用程序，我们计算由标量多重组扩展的SM的两环β函数，并根据组不变式明确提供结果。我们的结果包括Higgs-portal耦合的演变，以及标量“最小暗物质”。我们提出了各种耦合的两循环演化的数值结果。
We present the general form of the renormalizable four-point interactions of a complex scalar field furnishing an irreducible representation of SU(2), and derive a set of algebraic identities that facilitates the calculation of higher-order radiative corrections. As an application, we calculate the two-loop beta function for the SM extended by a scalar multiplet, and provide the result explicitly in terms of the group invariants. Our results include the evolution of the Higgs-portal couplings, as well as scalar "minimal dark matter". We present numerical results for the two-loop evolution of the various couplings.
