论文标题
希格斯物理面临$ m_w $异常
Higgs physics confronts the $M_W$ anomaly
论文作者
论文摘要
CDF协作对$ W $质量的最新高精度测量与Electroweak Fit所获得的标准模型预测感到巨大张力。如果得到确认，则只能根据新的物理效应来解释这一发现。在这项工作中，我们指出了$ M_W $异常与Higgs物理学观察物（例如$ h \toγγ，Zγ$与比率$ h \ wit zz/ww $）之间的通用连接。此外，我们系统地对新物理方案进行了分类，该方案可以通过对$ \ hat t $参数的树级贡献来解决$ m_w $异常。其中包括一个真实的标量三重态，标量四倍体具有相同的Higgs Doublet的超额度，$ Z'Uboboson，带有单位增压的矢量三重态和带有Higgs Doublet的量子量子的矢量玻色子。这些针对$ M_W $异常的解决方案的特征是新的物理状态，通常太重，无法在直接搜索中发现，但可能会在Higgs Physics中留下烙印。
The recent high-precision measurement of the $W$ mass by the CDF collaboration is in sharp tension with the Standard Model prediction as obtained by the electroweak fit. If confirmed, this finding can only be explained in terms of new physics effects. In this work, we point out a generic connection between the $M_W$ anomaly and Higgs physics observables such as $h\toγγ, Zγ$ and the ratio $h\to ZZ/WW$. Moreover, we systematically classify new physics scenarios which can address the $M_W$ anomaly via a tree-level contribution to the $\hat T$ parameter. These include a real scalar triplet, a scalar quadruplet with the same hypercharge of the Higgs doublet, a $Z'$ boson, a vector triplet with unit hypercharge and a vector boson with the gauge quantum numbers of the Higgs doublet. These solutions to the $M_W$ anomaly are characterized by new physics states which are typically too heavy to be discovered in direct searches, but which might leave their imprints in Higgs physics.
