arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1303.6180hep-ph
收藏

轻子$S_4$模型真空排列的自发CP破坏

Spontaneous CP violation from vacuum alignment in $S_4$ models of leptons

Gui-Jun Ding, Stephen F. King, Christoph Luhn, Alexander J. Stuart

摘要:

我们构建模型的基础上的$S_4$家族对称性结合广义CP对称性$H_{CP}$的轻子。我们展示了如何flavon潜在的可以自发地打破对称$S_4 \rtimes H_{CP}$下降到$Z_2 \times H^ν_{CP}$的中微子部门,其中保存CP对称$H^ν_{CP}$的选择是由自由(真实)参数控制的flavon潜在的。我们提出了两个现实的这种模型,一个在有效的水平和一个在renormalisable水平。这两种模型都预测了三极大轻子混合,CP要么完全保留,要么最大限度地打破,中间的可能性被模型的结构所禁止。

英文摘要:

We construct models of leptons based on $S_4$ family symmetry combined with a generalised CP symmetry $H_{CP}$. We show how the flavon potential can spontaneously break the symmetry $S_4 \rtimes H_{CP}$ down to $Z_2 \times H^ν_{CP}$ in the neutrino sector, where the choice of preserved CP symmetry $H^ν_{CP}$ is controlled by free (real) parameters in the flavon potential. We propose two realistic models of this kind, one at the effective level and one at the renormalisable level. Both models predict trimaximal lepton mixing with CP being either fully preserved or maximally broken, with the intermediate possibility forbidden by the structure of the models.

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。

↑