Toward verification of electroweak baryogengesis by electric dipole moments
Toward verification of electroweak baryogengesis by electric dipole moments
复制标题
通过电偶极矩验证电弱重生
DOI：
10.1016/j.physletb.2016.02.053
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发表时间：
2016
影响因子：
4.4
通讯作者：
Eibun Senaha
中科院分区：
文献类型：
--
作者：
Kaori Fuyuto;Junji Hisano;Eibun Senaha
我们研究的CP违反的重子不对称性的宇宙（BAU）和电偶极矩（EDMs）的模型扩展了一个额外的希格斯二重态和单线态，连同电弱相互作用费米子的影响的一般方面。特别是，重点是对结构的CP违反相互作用和依赖的BAU和EDM的质量的相关粒子。在一个具体的模式下，我们研究了一个典型的参数集的BAU和电子EDM之间的关系。只要与BAU有关的CP破坏占主导地位，电子EDM就有很强的探测电弱重子生成的能力。然而，一旦BAU无关的CP破坏开始发挥作用，BAU和电子EDM之间的直接相关性可能会丢失。即使在这样的情况下，我们指出，验证的情况下仍然与希格斯物理的帮助。
We study general aspects of the CP-violating effects on the baryon asymmetry of the Universe (BAU) and electric dipole moments (EDMs) in models extended by an extra Higgs doublet and a singlet, together with electroweak-interacting fermions. In particular, the emphasis is on the structure of the CP-violating interactions and dependences of the BAU and EDMs on masses of the relevant particles. In a concrete mode, we investigate a relationship between the BAU and the electron EDM for a typical parameter set. As long as the BAU-related CP violation predominantly exists, the electron EDM has a strong power in probing electroweak baryogenesis. However, once a BAU-unrelated CP violation comes into play, the direct correlation between the BAU and electron EDM can be lost. Even in such a case, we point out that verifiability of the scenario still remains with the help of Higgs physics.