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arXiv 0811.1198hep-thhep-ph
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SU(2)动力学混合项与自发对称性破缺

SU(2) Kinetic Mixing Terms and Spontaneous Symmetry Breaking

J. Lopez-Sarrion, Paola Arias, J. Gamboa

摘要:

本文讨论了Holdom模型的非阿贝尔推广--{ \it,即}本文考虑了一个两个规范场耦合到动力学混合项$g {tr}(F_{μν} (A) F_{μν} (B))$ --的理论。与阿贝尔情形类似,群结构$G\times G$被显式地分解为$G$。对于SU(2),这一事实意味着剩余规范对称性以及洛伦兹对称性是自发破缺的。我们表明,这种机制提供了质量的参与粒子。此外,该模型提出了一个重新定义的耦合常数的瞬子解决方案。

英文摘要:

The non-abelian generalization of the Holdom model --{\it i.e.} a theory with two gauge fields coupled to the kinetic mixing term $g {tr}(F_{μν} (A) F_{μν} (B))$-- is considered. Contrarily to the abelian case, the group structure $G\times G$ is explicitly broken to $G$. For SU(2) this fact implies that the residual gauge symmetry as well as the Lorentz symmetry is spontaneusly broken. We show that this mechanism provides of masses for the involved particles. Also, the model presents instanton solutions with a redefined coupling constant.

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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