论文标题
新的CDF II W-Boson质量的限制在顶部seesaw和Topflover模型上
Constraints from New CDF II W-Boson Mass On Top-Bottom Seesaw and the TopFlavor Models
论文作者
论文摘要
在顶部的seesaw和topflover模型中，可能存在额外的希格斯和矢量般的费米子，我们已经检查了CDF II在这些框架中报告的W质量异常。我们发现CDF II W-Boson质量数据分别严格地在两个模型中严格约束参数R_T和Z_T，而对其他参数（例如M_H，M_χare）的约束非常弱。因此，我们得出的结论是，在这两个模型中，W质量增量对额外的费米亚敏感，但不敏感。在Topflover模型中，我们还考虑了光与重规玻色子的质量混合所引起的W质量增量，并且贡献不大，并且对参数X和Y的约束也很弱。
In top-bottom seesaw and topflavor model, there may exist extra Higgses and vectorlike fermions, and we have examined the W mass anomaly reported by CDF II in these frames. We found that the CDF II W-boson mass data constrains the parameter r_t and z_t strictly in the two models, respectively, while the constraints on other parameters such as m_H, m_χare quite weak. Therefore, we conclude that in the two models, the W mass increment is sensitive to the extra fermions, but not the extra scalars. In topflavor model, we also consider the W mass increment induced by the mass mixing of the light and the heavy gauge bosons and the contribution is not too large and the constraints on the parameters x and y are weak.
