论文标题
两吉格斯 - 双doublet模型中的崩溃域壁和EDM的深刻见解
Collapsing domain walls in the two-Higgs-doublet model and deep insights from the EDM
论文作者
论文摘要
我们研究了具有CP侵略阶段的一般两-higgs doublet模型（2HDM）中的域壁溶液。发现具有自发CP违规的2HDM具有域壁解决方案的域墙面解决方案，其张力为$ \ Mathcal {O}（10^6）\，{\ rm Gev}^3 $，被Zel'dovich-Kobzarev-Okun Bound排除在外。以明确的CP侵入（CPV）项为标量潜力中所谓的偏见项，域壁可能会在早期宇宙中崩溃。显式违规的大小可以限制在大爆炸核合成中。该约束将其转换为$α_C$的CPV混合，并且主要对两个重型中性希格斯玻色子之间的质量分裂敏感。我们估计由于域壁崩溃而导致的引力波信号和电偶极矩（EDM）预测。事实证明，在任何以后的程序中都无法探测GW的峰值频谱。相比之下，在ACME-II处的最新电子EDM测量值部分排除了HIGGS潜力中具有非常微小的CPV参数的站不住脚的区域，并将被未来的ACME-III III投影进一步确认或排除。
We study the domain wall solutions in the general two-Higgs-doublet model (2HDM) with a CP-violating phase. The 2HDM with the spontaneouse CP violation is found to have domain wall solutions whose tensions are $\mathcal{O}(10^6)\,{\rm GeV}^3$, which are excluded by the Zel'dovich-Kobzarev-Okun bound. With the explicit CP-violating (CPV) terms as the so-called biased term in the scalar potential, domain walls can collapse in the early Universe. The sizes of the explicit CP violation can be constrained from the Big Bang nucleosynthesis. This constraint is converted to the CPV mixing of $α_c$, and is mostly sensitive to the mass splittings between two heavy neutral Higgs bosons. We estimate the possible gravitational wave signals and the electric dipole moment (EDM) predictions due to the domain wall collapsing. It turns out that the peak spectrum of the GW from the domain wall collapsing cannot be probed in any future program. In contrast, the untenable regions with very tiny explicit CPV parameter in the Higgs potential has been partially excluded by the latest electron EDM measurements at the ACME-II and will be further confirmed or excluded by the future ACME-III projection.
