论文标题
希格斯平方
Higgs Squared
论文作者
论文摘要
我们为Higgs-VEV敏感操作员提供了一种新颖的结构，该构造可以用作宇宙选择模型的触发操作员，用于电子层次层次结构问题。我们的操作员不包含在SM量规对称性下收取的任何自由度，从而减少了所得模型中的调整。我们的构造基于两个Higgs Doublet模型（2HDM）的扩展，其柔软折断的近似全局$ d_8 $对称（正方形的对称组）。基于我们扩展的Higgs扇区的宇宙紧缩模型只有一个百分比的调整，与通常的小层次结构问题相对应。在参数空间的大区域中，2HDM自然地推向对齐限制。一个完整的模型需要引入费米金顶级合作伙伴，以确保费米昂领域的大约$ d_8 $对称性。我们还表明，可以将相同的扩展希格斯部门用于中微子质量的Seesaw机制的新实现。
We present a novel construction for a Higgs-VEV sensitive operator, which can be used as a trigger operator in cosmic selection models for the electroweak hierarchy problem. Our operator does not contain any degrees of freedom charged under the SM gauge symmetries, leading to reduced tuning in the resulting models. Our construction is based on the extension of a two Higgs doublet model (2HDM) with a softly broken approximate global $D_8$ symmetry (the symmetry group of a square). A cosmic crunching model based on our extended Higgs sector has only a percent level tuning corresponding to the usual little hierarchy problem. In large regions of parameter space the 2HDM is naturally pushed towards the alignment limit. A complete model requires the introduction of fermionic top partners to ensure the approximate $D_8$ symmetry in the fermion sector. We also show that the same extended Higgs sector can be used for a novel implementation of the seesaw mechanism of neutrino masses.
