论文标题
W-Boson质量异常是自发折断的额外SU（2）全球对称性的表现
W-boson mass anomaly as a manifestation of spontaneously broken additional SU(2) global symmetry on a new fundamental scale
论文作者
论文摘要
最近，CDF合作宣布了对$ w $ boson Mass $ M_W $的新精确度量，该$ M_W $偏离了标准型号（SM）预测$7σ$。 $ m_w $中的差异约为$Δ_W\ simeq70 $ meV，可能是由SM物理学超出物理的造成的。在SM扩展的某些情况下，我们获得了关系$Δ_W\ simeq \ frac {3α} {8π} m_w \ simeq70 $ MEV，其中$α$是电磁良好的罚款结构常数。主要的猜想是出现$ w $ bosons的纵向组件，作为自发损坏的额外$ su（2）$全球对称性的巨石玻色子，距离electroweak对称性破坏量表要小得多。我们认为，在这种情况下，带电的希格斯标量的质量可以获得电磁辐射的贡献，从而增强了相对于通常的SM预测，可观察到的$ M_ {w^\ pm} $的值。我们与$Δ_W$的关系遵循已知的一环结果，即相应的有效Coleman-Weinberg潜力与Weinberg Sum规则结合使用。
Recently the CDF Collaboration has announced a new precise measurement of the $W$-boson mass $M_W$ that deviates from the Standard Model (SM) prediction by $7σ$. The discrepancy in $M_W$ is about $Δ_W\simeq70$ MeV and probably caused by a beyond the SM physics. Within a certain scenario of extension of the SM, we obtain the relation $Δ_W\simeq\frac{3α}{8π}M_W\simeq70$ MeV, where $α$ is the electromagnetic fine structure constant. The main conjecture is the appearance of longitudinal components of the $W$-bosons as the Goldstone bosons of a spontaneously broken additional $SU(2)$ global symmetry at distances much smaller than the electroweak symmetry breaking scale. We argue that within this scenario, the masses of charged Higgs scalars can get an electromagnetic radiative contribution which enhances the observed value of $M_{W^\pm}$ with respect to the usual SM prediction. Our relation for $Δ_W$ follows from the known one-loop result for the corresponding effective Coleman-Weinberg potential in combination with the Weinberg sum rules.
