论文标题
较弱的偶极子量的重量碎屑，由$ z^\ prime $ gauge Bosons引起的风味违规行为
Weak dipole moments of heavy fermions with flavor violation induced by $Z^\prime$ gauge bosons
论文作者
论文摘要
在一般有效的扩展中性电流模型的背景下，呈现了带有风味的$ z^\ prime f_i \ bar {f} _j $ dertices的弱偶极矩（SM）在单环级别上的电荷费米的计算。我们对异常的弱磁偶极力矩（AWMDM）$ a^w_ {fi} $和弱电偶极矩（Wedm）$ d^w_ {f_i} $给出了数值预测，用于$τ$ Lepton和$ t $ t $ Quark。对于考虑的几个$ z^\ prime $量规玻色子，我们发现，对于$τ$ Lepton而言，$ a^w_τ$的真实部分的最佳预测是$ 10^{ - 9} $的订单，而想象的部分则为下面四个尺寸的订单。 WEDM的最高值，$ d^w_τ$，对应于$ 10^{ - 26} $ $ e $ -cm的实际部分，而假想的部分则为以下三个数量级。另一方面，我们发现了顶级夸克，对$ a^w_t $的实际部分的最佳预测为$ 10^{ - 7} $的顺序，其虚构部分的订单为$ 10^{ - 11} $。我们还发现，$ d^w_t $的实际零件为$ 10^{ - 26} $ $ e $ -cm，其虚构零件可以高达$ 10^{ - 31} $ $ e $ -cm。
A calculation of weak dipole moments of charged fermions of the Standard Model (SM) at the one-loop level, in the context of a general effective extended neutral current model with flavor changing $Z^\prime f_i \bar{f}_j$ vertices, is presented. We give numerical predictions for the anomalous weak magnetic dipole moment (AWMDM) $a^w_{fi}$, and the weak electric dipole moment (WEDM) $d^w_{f_i}$, for the $τ$ lepton and $t$ quark. For several $Z^\prime$ gauge bosons considered, we find that, for the $τ$ lepton, the best prediction for the real part of $a^w_τ$ is of the order of $10^{-9}$, while the imaginary part is four orders of magnitude below. The highest value for the WEDM, $d^w_τ$, corresponds to $10^{-26}$ $e$-cm, for its real part, and the imaginary part is three orders of magnitude below. On the other hand, we found for the top quark, that the best prediction for the real part of $a^w_t$ is of the order of $10^{-7}$ and its imaginary part is of the order of $10^{-11}$. We also found that $d^w_t$ is of the order of $10^{-26}$ $e$-cm for its real part, and its imaginary part can be as high as $10^{-31}$ $e$-cm.
