论文标题
中微子有效理论中的一环匹配条件
One-Loop Matching Conditions in Neutrino Effective Theory
论文作者
论文摘要
我们根据我看到的类型机制研究了匹配条件和阈值校正。通常，使用直观的Feynman图形方法，我们计算出在匹配量表中整合了沉重的右中微子之前和之后的幅度。特别是，我们得出了完整理论和有效理论之间的一环匹配条件。参数的匹配条件受到对相应顶点的一环校正以及希格斯和Lepton场的波函数校正的影响。我们的结果与基于功能方法的早期结果相当。
We investigate matching conditions and threshold corrections between full and effective theories based on the type I seesaw mechanism. In general, using an intuitive Feynman diagrammatical approach, we compute the amplitudes before and after integrating out heavy right-handed neutrinos at the matching scale. In particular, we derive the one-loop matching conditions between the full and the effective theories. The matching conditions of the parameters are influenced by one-loop corrections to the corresponding vertices as well as wave function corrections for the Higgs and the lepton fields. Our results are comparable to earlier results based on a functional approach.
