论文标题
三胞胎seesaw模型中的W玻璃体质量
W-boson mass in the triplet seesaw model
论文作者
论文摘要
CDF协作最近发布了对W玻璃体质量的精确度量，该测量与标准模型预测的不同，这是七个标准偏差。可以用额外的电子多重组来解释该结果，该多重链多重损坏了托管对称性或在循环级别上有助于倾斜参数。在这里，我们研究了涉及新的多重组的最佳动机方案之一：II型Seesaw模型，该模型涉及一个标量三重态，该标量三重态产生主要中微子质量，并可以解决W-Boson质量差异。这有利于质量在100至200 GEV的双重电荷标量以及其他质量分裂的标量。可以在LHC上测试整个首选参数空间。
The CDF collaboration has recently published a precision measurement of the W-boson mass that differs from the Standard Model prediction by seven standard deviations. This result can be explained with additional electroweak multiplets that either break the custodial symmetry or contribute to oblique parameters at loop level. Here, we study one of the best-motivated scenarios involving new multiplets: the type-II seesaw model, which involves a scalar triplet that generates Majorana neutrino masses and can furthermore resolve the W-boson mass discrepancy. This favors a doubly-charged scalar with mass between 100 and 200 GeV as well as other scalars with a fixed mass splitting. The entire preferred parameter space is testable at the LHC.
