论文标题
$ W $ -BOSON质量异常来自比例不变的2HDM
$W$-Boson Mass Anomaly from Scale Invariant 2HDM
论文作者
论文摘要
最近报道的通过CDF-II协作对$ W $ -Boson质量的测量要比标准模型预测的重量明显重。我们使用$ \ mathbb {z} _2 $对称性来研究规模不变的两-higgs-doublet模型（SI-2HDM）的异常现象，以避免变化变化的不中性气流（FCNC）。在这种情况下，希格斯粒子是Si-2hdm中经典的无质量鳞片，通过辐射校正获得质量，因此自然而然。此外，由于尺度对称性，模型对通用2HDM的预测性更为可预测性。我们表明，倾斜参数取决于带电和CP-EVE-EVEN（CP-ODD）中性标量成分，分别用$ M_ {H^\ pm} $和$ M_H $（$ M_A $）表示，足以容纳$ W $ boson Mass Anomaly Anomaly Anmomaly。 SI-2HDM的质谱中也有可行的区域，它们逃避了带电的希格斯和中性标量的相撞器的实验界限。
The recently reported measurement of the $W$-boson mass by CDF-II collaboration is significantly heavier than that of the Standard Model prediction. We study this anomaly in the scale invariant Two-Higgs-Doublet-Model (SI-2HDM) with a $\mathbb{Z}_2$ symmetry to avoid the flavor-changing-neutral-current (FCNC). In this scenario the Higgs particle is the classically massless scalon in the SI-2HDM gaining its mass by radiative corrections, hence being naturally light. Moreover, because of the scale symmetry the model is more predictive respect to the generic 2HDM. We show that the oblique parameters depending on the masses of the charged and CP-even (CP-odd) neutral scalar components of the SI-2HDM denoted respectively by $M_{H^\pm}$ and $M_h$ ($M_A$), are large enough to accommodate the $W$-boson mass anomaly in the model. There are as well viable regions in the mass spectrum of the SI-2HDM that evade the experimental bounds from colliders on the charged Higgs and neutral scalars.
