论文标题
Electroweak Precision Fit和新物理学，$ W $ BOSON质量
Electroweak Precision Fit and New Physics in light of $W$ Boson Mass
论文作者
论文摘要
$ W $玻色子质量是用于测试标准型号或其扩展名的最重要的Electroweak Precision Precision Precision Precision。最近在CDF上测量的$ W $ BOSON质量显示了与SM预测的$7σ$偏差，这可能会挑战SM的内部一致性。通过与新的$ w $ -boson一起执行全局electroweak，我们提出了斜参数的新值：$ s = 0.06 \ pm 0.10 $，$ t = 0.11 \ pm 0.12 $，$ u = 0.13 \ pm 0.09 $，或$ s = 0.14这强烈表明需要超越SM的非分类多重组。作为概念验证，我们表明新的结果可以在两吉格斯双重双体模型中容纳，在该模型中，带电的希格斯玻色子必须比两个重型中性的希格斯玻色子重或更轻。因此，搜索这些非SM Higgs玻色子将提供一种补充方法来测试$ W $ Boson质量异常的新物理学。
The $W$ boson mass is one of the most important electroweak precision observables for testing the Standard Model or its extensions. The very recent measured $W$ boson mass at CDF shows about $7σ$ deviations from the SM prediction, which may challenge the internal consistency of the SM. By performing the global electroweak fit with the new $W$-boson, we present the new values of the oblique parameters: $S = 0.06 \pm 0.10$, $T= 0.11 \pm 0.12$, $U=0.13 \pm 0.09$, or $S=0.14 \pm 0.08$, $T= 0.26 \pm 0.06$ with $U =0$ and the corresponding correlation matrices, which strongly indicates the need for the non-degenerate multiplets beyond the SM. As a proof-of-concept, we show that the new results can be accommodated in the two-Higgs doublet model, where the charged Higgs boson has to be either heavier or lighter than both two heavy neutral Higgs bosons. Therefore, searching for these non-SM Higgs bosons will provide a complementary way to test the new physics for the $W$ boson mass anomaly.
