论文标题
在$ W $玻色子质量上三倍
Tripling down on the $W$ boson mass
论文作者
论文摘要
CDF协作宣布了对$ W $玻色子质量的新的精确度量，该协作与标准模型预测有着强烈的偏离。在本文中，我们研究了该测量值对标准模型HIGGS部门的$ su（2）_l $ treelet扩展的参数空间的含义（带有$ y = 1 $），重点是限制，其中新的三重态是近似$ \ m m mathbb {z} _2 $ -odd，而sm sm sm $ $ \ mathbb}我们研究了由CDF-II实验测量的$ W $玻色子质量与其他Electroweak Precision Precision可观测值和HIGGS精确数据所测量的$ W $玻色子质量的兼容性。我们全面考虑了LHC上新希格斯州的信号，并强调了有希望的搜索渠道。此外，我们还研究了最轻的新希格斯粒子在腐烂或宇宙学上稳定的情况的宇宙学意义。
A new precision measurement of the $W$ boson mass has been announced by the CDF collaboration, which strongly deviates from the Standard Model prediction. In this article, we study the implications of this measurement on the parameter space of the $SU(2)_L$ triplet extension (with hypercharge $Y=1$) of the Standard Model Higgs sector, focusing on a limit where the new triplet is approximate $\mathbb{Z}_2$-odd while the SM is $\mathbb{Z}_2$-even. We study the compatibility of the triplet spectrum preferred by the $W$ boson mass measured by the CDF-II experiment with other electroweak precision observables and Higgs precision data. We comprehensively consider the signals of new Higgs states at the LHC and highlighted the promising search channels. In addition, we also investigate the cosmological implications of the case in which the lightest new Higgs particle is either late decaying or cosmologically stable.
