论文标题

全球拟合有色标量,包括最后的W玻璃体质量测量

Global fit on coloured scalars including the last W-boson mass measurement

论文作者

Miralles, V., Eberhardt, O., Gisbert, H., Pich, A., Ruiz-Vidal, J.

论文摘要

我们考虑了Electroweak理论的简单扩展,其中包含了一个$ SU(2)_l $ Doublet颜色 - 圆锥体标量与Yukawa耦合,可满足最小风味的原则。使用HEPFIT软件包,我们对可用数据(包括所有相关的理论约束)进行全局拟合,并在模型参数上提取当前界限。我们还使用当前的实验信息计算了其他有色标量对中子的电偶极矩的贡献,并将其参数空间设置为限制。最后,我们研究了$ w $ - boson质量的最后测量对我们的合身性的效果,并展示了颜色octet标量扩展如何为适应新测量的努力。

We consider a simple extension of the electroweak theory, incorporating one $SU(2)_L$ doublet of colour-octet scalars with Yukawa couplings satisfying the principle of minimal flavour violation. Using the HEPfit package, we perform a global fit to the available data, including all relevant theoretical constraints, and extract the current bounds on the model parameters. We also calculate the contributions of the additional coloured scalars to the electric dipole moment of the neutron and set limits on its parameter space using the current experimental information. Finally, we study the effect that the last measurement of the $W$-boson mass has in our fit and show how the colour-octet scalar extension struggles to accommodate the new measurement.

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