论文标题
解释Electroweak精密数据，包括$ W $ - 质量CDF异常
Interpreting electroweak precision data including the $W$-mass CDF anomaly
论文作者
论文摘要
我们执行了Electroweak数据的全球拟合度，发现CDF协作声称的$ W $质量中的异常可以复制为通用的新物理校正或$ t $参数或$ | | h^\匕首d_μH|^2 $操作员。 Contributions at tree-level from multi-TeV new physics can fit the anomaly compatibly with collider bounds: we explore which scalar vacuum expectation values (such as a triplet with zero hypercharge), $Z'$ vectors (such as a $Z'$ coupled to the Higgs only), little-Higgs models or higher-dimensional geometries provide good global fits.另一方面，在循环层面上贡献的新物理必须在较弱的规模范围内以适合异常。因此，它通常与对撞机边界发生冲突，可以绕过假设特殊的运动学（如准脱位颗粒）腐烂成暗物质（例如惰性higgs doublet或适当的超对称颗粒）。
We perform a global fit of electroweak data, finding that the anomaly in the $W$ mass claimed by the CDF collaboration can be reproduced as a universal new-physics correction to the $T$ parameter or $| H^\dagger D_μH|^2$ operator. Contributions at tree-level from multi-TeV new physics can fit the anomaly compatibly with collider bounds: we explore which scalar vacuum expectation values (such as a triplet with zero hypercharge), $Z'$ vectors (such as a $Z'$ coupled to the Higgs only), little-Higgs models or higher-dimensional geometries provide good global fits. On the other hand, new physics that contributes at loop-level must be around the weak scale to fit the anomaly. Thereby it generically conflicts with collider bounds, that can be bypassed assuming special kinematics like quasi-degenerate particles that decay into Dark Matter (such as an inert Higgs doublet or appropriate supersymmetric particles).
