论文标题
在美丽的镜子模型中适应CDF W-boson质量测量
Accommodating the CDF W-boson Mass Measurement in the Beautiful Mirror Model
论文作者
论文摘要
CDF II实验最近报道的W-boson质量测量结果与标准模型预测和先前的测量值都显着偏差。底部夸克（$ a^{0，b} _ {\ rm fb} $）的标准模型预测的标准模型预测与其在LEP实验中的测量之间存在长期偏差。旨在解决$ a^{0，b} _ {\ rm fb} $差异的美丽镜像模型介绍了类似向量的夸克，该Quarks可以在一环级别修改W-Boson质量。在这项研究中，我们在模型参数空间中发现了一个有趣的区域，该区域有可能解释这两种差异，这将新夸克置于多TEV区域。该区域主要与直接搜索和HIGGS耦合测量的当前LHC边界一致，但将在高光度LHC上进行彻底探测。因此，可以在不久的将来确认或伪造美丽的镜子模型作为$ m_w $和$ a^{0，b} _ {\ rm fb} $差异的解释。
The W-boson mass measurement recently reported by the CDF II experiment exhibits a significant deviation from both the Standard Model prediction and previous measurements. There is also a long-standing deviation between the Standard Model prediction of the forward-backward asymmetry of the bottom quark ($A^{0,b}_{\rm FB}$) and its measurement at the LEP experiment. The Beautiful Mirror model, proposed to resolve the $A^{0,b}_{\rm FB}$ discrepancy, introduces vector-like quarks that modify the W-boson mass at one-loop level. In this study, we find an interesting region in the model parameter space that could potentially explain both discrepancies, which puts the new quarks in the multi-TeV region. This region is mostly consistent with current LHC bounds from direct searches and Higgs coupling measurements, but will be thoroughly probed at the High Luminosity LHC. As such, the Beautiful Mirror model as an explanation of the $m_W$ and $A^{0,b}_{\rm FB}$ discrepancies could be confirmed or falsified in the near future.
