论文标题
2HD+A模型：对撞机，暗物质和引力波信号
The 2HD+a model: collider, dark matter and gravitational wave signals
论文作者
论文摘要
我们对一个模型进行了全面的研究，其中将Higgs扇区扩展到包含两个Higgs Doublet场，其中四种类型的可能性可以搭配到标准的费米子，以及一个额外的光伪Scudoscalar Higgs玻色子，与两倍的双倍组合。这个2HD+一个模型还包括一个稳定的iSosinglet巨大费用，它具有正确的热遗物丰度，以说明宇宙中的暗物质。我们总结了该模型为主题的理论约束，然后对现象学约束进行详细研究。 In particular, we discuss the bounds from the LHC in the search for light and heavy scalar resonances and invisible states and those from high precision measurements in the Higgs, electroweak and flavor sectors, addressing the possibility of explaining the deviation from the standard expectation of the anomalous magnetic moment of the muon and the $W$-boson mass recently observed at Fermilab.我们还总结了直接检测和间接检测暗物质实验的天体物理约束。最终，我们对模型暗示的宇宙相变和重力波谱进行了彻底的分析，并确定了在单个和多个相变之后达到电动真空的参数空间。然后，我们讨论在不久的将来的实验（例如Lisa，BBO或Decigo）中观察这种引力波信号的前景。
We perform a comprehensive study of a model in which the Higgs sector is extended to contain two Higgs doublet fields, with the four types of possibilities to couple to standard fermions, as well as an additional light pseudoscalar Higgs boson which mixes with the one of the two doublets. This 2HD+a model includes also a stable isosinglet massive fermion that has the correct thermal relic abundance to account for the dark matter in the Universe. We summarize the theoretical constraints to which the model is subject and then perform a detailed study of the phenomenological constraints. In particular, we discuss the bounds from the LHC in the search for light and heavy scalar resonances and invisible states and those from high precision measurements in the Higgs, electroweak and flavor sectors, addressing the possibility of explaining the deviation from the standard expectation of the anomalous magnetic moment of the muon and the $W$-boson mass recently observed at Fermilab. We also summarize the astrophysical constraints from direct and indirect detection dark matter experiments. We finally conduct a thorough analysis of the cosmic phase transitions and the gravitational wave spectrum that are implied by the model and identify the parameter space in which the electroweak vacuum is reached after single and multiple phase transitions. We then discuss the prospects for observing the signal of such gravitational waves in near future experiments such as LISA, BBO or DECIGO.
