论文标题
$ρ$参数和CDF W-MASS异常：观察标量三重态的角色
The $ρ$ parameter and the CDF W-mass anomaly: observations on the role of scalar triplets
论文作者
论文摘要
$ρ$ - 参数与W-and Z-Mass一起充当了Electroweak Symmetry Breaking扇区的延伸，充当了Occam的剃须刀。我们通过检查将其应用于非双打higgs场景 cdf- $ ii $ $ $ $ $。暂停对 CDF声称，我们表明，通常，如果一个人在树级上工作，则预测$ρ= 1 $在树级别的理论模型与CDF索赔在4-6标准偏差处不一致 如果一个人仅限于现有的Z-Boson质量和较早的$ M_W $ value 从全球拟合或Atlas数据中。除了通常的双打外，我们还采用一些含有一个或多个标量SU（2）个三重态的方案，并表明，这两个场景都包括一个复杂的标量三重态，一个具有复杂和真实三胞胎的场景（Georgi-Machacek模型）都可以与新的数据保持一致，在该场景中，需要将一个小小的跨度和实际的镜头进行互入，并在复杂的情况下进行了串扰。我们将在树级或不可估量的新物理贡献$ m_w $的情况下探索这种分裂的后果，并指出，因为其插图在$ h^{\ pm} w^{\ mp} Z $类型交互互动角度中的含义。
The $ρ$-parameter, together with the W-and Z-masses, acts as Occam's razor on extensions of the electroweak symmetry breaking sectors. We apply this to non-doublet Higgs scenarios, by examining the CDF- $II$ claim on the W-boson mass. Suspending any judgement on the CDF claim, we show that in general, if one works at the tree level, theoretical models which predict $ρ=1$ at the tree-level are inconsistent with the CDF claims at 4-6 standard deviations if one confines oneself to the existing Z-boson mass, and the earlier $M_W$ value from either the global fit or the ATLAS data. We take some well-motivated scenarios containing one or more scalar SU(2) triplets in addition to the usual doublet, and show that, both a scenario including a complex scalar triplet and one with a complex as well as a real triplet (the Georgi-Machacek model) can be made consistent with the new data, where a small splitting between the complex and the real triplet vacuum expectation values is required in the second scenario. We will explore the consequences of this splitting, either at tree level or via incalculable new physics contribution to $M_W$, and indicate, as illustrations its implications in $H^{\pm}W^{\mp}Z$ type interaction vertices.
