论文标题
使用偶极子过程来限制四边形有效相互作用的风味
Using dipole processes to constrain the flavour of four-fermion effective interactions
论文作者
论文摘要
偶极相互作用编码各种现象，例如夸克和Lepton扇区中的辐射衰减和电偶极矩，它们的物理学超出了标准模型，直至非常高的能量尺度；由于重新归化，非偶极算子混合成偶极子，因此可能会产生可观察到的效果，这些作用可以由相同现象研究。我认为，在两循环（即，当一环效应消失时）中，将领先的顺序混合到偶极子中的四个特里米昂接触相互作用，并且这种混合可以避免小的Yukawa耦合，然后探索来自新物理学的风味和$ \ Mathbf {Cp {Cp} $ afirecry的现象学后果。
Dipole interactions encode a rich variety of phenomena, such as radiative decays and electric dipole moments in both quark and lepton sectors, which probe physics beyond the Standard Model up to very high energy scales; due to renormalization, non-dipole operators mix into dipole ones, thus possibly generating observable effects that can be investigated by those same phenomena. I consider four-fermion contact interactions for which the leading order mixing into dipoles happens at two-loops (i.e., when one-loop effects vanish) and for which this mixing can avoid small Yukawa couplings, and then explore the phenomenological consequences for flavour and $ \mathbf{CP} $ violation coming from New Physics.
