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arXiv 1812.08473hep-ph
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具有隐藏$SU(2)_H \times U(1)_X$规范对称性的跷跷板模型

Seesaw model with hidden $SU(2)_H \times U(1)_X$ gauge symmetry

Takaaki Nomura, Hiroshi Okada

摘要:

我们提出了一个具有隐藏的规范对称性$SU(2)_H \times U(1)_X$的跷跷板模型,其中两种类型的标准模型单重态费米子在实现跷跷板机制中被组织成$SU(2)_H$双重态。然后,我们制定标量和规范部门,中微子质量矩阵和轻子味破坏。在我们的规范扇区中,自发对称性破缺缺后出现了$Z$ - $Z'$混合,我们研究了$ρ$ -参数的约束。此外,我们还讨论了在大型强子对撞机上通过$Z$ - $Z'$混合产生$Z'$,其中$Z'$倾向于主要衰变为重中微子。

英文摘要:

We propose a seesaw model with a hidden gauge symmetry $SU(2)_H \times U(1)_X$ where two types of standard model singlet fermions in realizing a seesaw mechanism are organized into $SU(2)_H$ doublet. Then we formulate scalar and gauge sector, neutrino mass matrix and lepton flavor violations. In our gauge sector, $Z$-$Z'$ mixing appears after spontaneous symmetry breaking and we investigate constraint from $ρ$-parameter. In addition we discuss $Z'$ production at the large hadron collider via $Z$-$Z'$ mixing, where $Z'$ tends to dominantly decay into heavy neutrinos.

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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