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arXiv 2012.03990hep-ph
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有效场论方法在CP破坏最小线性$σ$模型中的探索

Probing Effective Field Theory Approach in the CP Violating Minimal Linear $σ$ Model

J. Alonso-Gonzalez, J. M. Lizana, V. Martinez-Fernandez, L. Merlo, S. Pokorski

摘要:

最小线性$σ$模型是一个有用的理论实验室。人们可以在微扰重整化模型中研究希格斯玻色子作为伪戈德斯通玻色子的性质、场$\mathtt{s}$的径向模式自发地打破全局$SO(5)$对称性的唯象效应以及基于有效场论方法的结论的有效性,其中场$\mathtt{s}$在谱中,在重自由度解耦之后。本文在最小线性$σ$模型的框架下讨论了这些问题,模型中CP破坏相位导致有效标准模型Yukawa耦合中的赝标分量。并研究了在$\mathtt{s}$场存在下的电弱相变特性。

英文摘要:

The Minimal Linear $σ$ Model is a useful theoretical laboratory. One can investigate in a perturbative renormalisable model the properties of the Higgs boson as a pseudo-Goldstone boson, the phenomenological effects of the radial mode of the field $\mathtt{s}$ which spontaneously breaks the global $SO(5)$ symmetry and the validity of conclusions based on the Effective Field Theory approach with the field $\mathtt{s}$ in the spectrum, after the decoupling of heavy degrees of freedom. In this paper all those issues are discussed in the framework of the Minimal Linear $σ$ Model with CP violating phases leading to pseudoscalar components in the effective Standard Model Yukawa couplings. Also the character of the electroweak phase transition in the presence of the field $\mathtt{s}$ is investigated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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