论文标题
MUON（$ G-2 $）和W-Boson质量异常在基于$ z_4 $对称与矢量的模型中
Muon ($g-2$) and W-boson mass Anomaly in a Model Based on $Z_4$ Symmetry with Vector like Fermion
论文作者
论文摘要
CDF-II协作的最新结果表明，与标准模型期望的差异为7σ$。在测量Fermilab报告的MUON磁矩时，还存在$4.2σ$的差异。我们研究了基于$ z_ {4} $的单个连贯框架中中微子质量，暗物质，兆恩（$ g-2 $）和W-boson质量异常之间的联系，该框架与scotogenic模型的扩展与vector（例如Lepton（VLL））。中微子质量是在一个循环水平上产生的。还可以通过更正倾斜参数$ s $，$ t $和$ u $纠正W-Boson质量异常，为W-Boson质量异常提供了解决方案。 VLL三胞胎$ψ_T$与惰性双线$η$的耦合为MUON异常磁矩提供了积极的贡献。在模型中，VLL三重态为深色物质提供了Lepton门户（$η_r^0 $）。该模型预测3 $σ$的下限$ m_ {ee}> 0.025 $ ev，这在$0νβ.$衰减实验的灵敏度达到范围内。该模型以$ 1.3 <y_ψ<2.8 $的价格解释了Muon异常磁矩$ΔA_μ$，DM候选者的质量为$ 152 \ text {gev} <m_ {η_{η_{r}^{0}}}}}} <195 \ 195 \ 195 \ text {gev} $。 W-Boson质量异常的解释，此外，限制了DM候选者的质量，$ m_ {η_{η_{r}^{0}} $，范围为$ 154 \ text {gev} <m_ {η_{η_{η_{η_{r}^{0}^{0}}} <174} <174 \ text <evev ev {
The latest results of CDF-II collaboration show a discrepancy of $7σ$ with standard model expectations. There is, also, a $4.2σ$ discrepancy in the measurement of muon magnetic moment reported by Fermilab. We study the connection between neutrino masses, dark matter, muon ($g-2$) and W-boson mass anomaly within a single coherent framework based on $Z_{4}$ extension of the scotogenic model with vector like lepton (VLL). Neutrino masses are generated at one loop level. The inert doublet, also, provide a solution to W-boson mass anomaly through correction in oblique parameters $S$, $T$ and $U$. The coupling of VLL triplet $ψ_T$ to inert doublet $η$ provides positive contribution to muon anomalous magnetic moment. In the model, the VLL triplet provides a lepton portal to dark matter ($η_R^0$). The model predicts a lower bound $m_{ee}>0.025$ eV at 3$σ$, which is well within the sensitivity reach of the $0νββ$ decay experiments. The model explains muon anomalous magnetic moment $Δa_μ$ for $1.3<y_ψ<2.8$ and mass of DM candidate in the range $152\text{ GeV}<M_{η_{R}^{0}}<195\text{ GeV}$. The explanation of W-boson mass anomaly, further, constrain the mass of DM candidate, $M_{η_{R}^{0}}$, in the range $154\text{ GeV}<M_{η_{R}^{0}}<174\text{ GeV}$.
