论文标题
两循环改进了$ m_w $和$ \ sin^2θ_{eff} $的预测
Two-loop improved predictions for $M_W$ and $\sin^2θ_{eff}$ in Two-Higgs-Doublet Models
论文作者
论文摘要
我们介绍了$ W $ -BOSON质量的当前最精确的预测，并在对齐的两个higgs-doublet模型中介绍了$ w $ boson质量和Leptonic有效混合角$ \ sin^2θ_ {\ text {eff}} $。评估包括完整的一环结果，标准模型的所有已知高阶校正以及非标准的两环贡献，这些贡献会随着带电和中性THDM Higgs玻色子之间的质量分配而增加。它们取决于$ \tanβ$和软$ z_2 $ -smmetry breakingparameter $ m_ {12}^2 $的标量潜力，除了非标准的波森群众外。每当一环校正变得较大时，两循环的贡献就会对预测进行实质性的修改，这对于$ w $质量的质量尤为重要，在$ w $质量上，需要进行大规模的质量转移才能达到CDF协作的最终结果。与实验数据相比，依赖各种非标准参数的依赖性显示了数值结果。
We present the currently most precise predictions for the $W$-boson mass and the leptonic effective mixing angle $\sin^2θ_{\text{eff}}$ in the aligned Two-Higgs-Doublet Model. The evaluation includes the full one-loop result, all known higher-order corrections of the Standard Model, and the non-standard two-loop contributions that increase with mass splittings between charged and neutral THDM Higgs bosons. They depend on $\tanβ$ and the soft $Z_2$-symmetry breakingparameter $m_{12}^2$ of the scalar potential, in addition to the non-standard boson masses. Whenever the one-loop corrections become large, the two-loop contributions yield substantial modifications of the predictions, which is of particular importance for the $W$ mass where large mass shifts are required to reach the recently published final resultof the CDF collaboration. Numerical results are shown for the dependence on the various non-standard parameters and in comparison with experimental data.
