Electroweak baryogenesis in aligned two Higgs doublet models
Electroweak baryogenesis in aligned two Higgs doublet models
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DOI：
10.1007/jhep01(2022)104
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发表时间：
2021-11
影响因子：
5.4
通讯作者：
Kazuki Enomoto;S. Kanemura;Yushi Mura
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文献类型：
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作者：
Kazuki Enomoto;S. Kanemura;Yushi Mura
本文讨论了两个Higgs偶态模型中的电弱重子生成问题。在该模型中，通过Higgs扇区内CP破坏效应之间的相消干涉，可以避免实验结果对电子电偶极矩的严格约束。在我们以前的工作中，我们表明，在同一模型的特定场景中，可以在不与当前可用数据相矛盾的情况下解释宇宙中观察到的重子数。本文首先讨论了基于WKB方法计算重子数的细节，该方法考虑了壁面速度的所有阶数。然后，我们调查的参数空间，允许根据目前可用的数据从对撞机，风味和电偶极矩实验同时进行。我们发现了几个可以解释宇宙重子不对称性的基准方案。我们还讨论了如何在未来的对撞机实验，各种口味的实验和引力波观测测试这些基准方案。
We discuss electroweak baryogenesis in aligned two Higgs doublet models. It is known that in this model the severe constraint from the experimental results for the electron electric dipole moment can be avoided by destructive interference among CP-violating effects in the Higgs sector. In our previous work, we showed that the observed baryon number in the Universe can be explained without contradicting current available data in a specific scenario in the same model. We here first discuss details of the evaluation of baryon number based on the WKB method taking into account all order of the wall velocity. We then investigate parameter spaces which are allowed under the current available data from collider, flavor and electric dipole moment experiments simultaneously. We find several benchmark scenarios which can explain baryon asymmetry of the Universe. We also discuss how we can test these benchmark scenarios at future collider experiments, various flavor experiments and gravitational wave observations.