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arXiv 2012.11156hep-ph
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Muon $g-2$、暗物质与模 $A_4$ 对称性下的中微子质量解释

Muon $g-2$, dark matter, and neutrino mass explanations in a modular $A_4$ symmetry

Parada T. P. Hutauruk, Dong Woo Kang, Jongkuk Kim, Hiroshi Okada

AI总结:

本文研究基于模 $A_4$ 对称性的超对称模型,解释μ子反常磁矩并预测中微子参数,通过最小扩展引入暗物质候选者,同时满足暗物质 relic 密度与轻子区约束。

摘要:

我们研究了一个成功的模型,该模型通过超对称理论中的汤川型相互作用来解释μ子反常磁矩。得益于模 $A_4$ 味对称性,任何破坏该模型的轻子味破坏过程均被禁止。我们还研究了一个包含暗物质(DM)候选者的可预测辐射跷跷板模型。首先,我们构建了满足中微子振荡数据的最小模型,并通过 $χ^2$ 分析获得了狄拉克CP、Majorana相位和中微子质量等预测。然而,该最小模型无法提供理想的DM候选者。因此,我们对模型进行最小扩展并找到了良好的DM候选者。在扩展框架中,我们展示了满足μ子反常磁矩和观测到的暗物质 relic 密度的允许区域,以及轻子区的预测。

英文摘要:

We study a successful model to explain the muon anomalous magnetic moment originating from Yukawa-type interactions {in a supersymmetric theory}. Thanks to a modular $A_4$ flavor symmetry, any lepton flavor violations that spoil the model are forbidden. We also investigate a predictive radiative seesaw model including a dark matter (DM) candidate. At first, we construct the minimum model to satisfy the neutrino oscillation data and obtain several predictions such as Dirac CP and Majorana phases, the neutrino masses through $χ^2$ analysis. However, the minimum model would not provide our promising DM candidate. Thus, we minimally extend the model and find a good DM candidate. In the extended framework, we show the allowed regions to satisfy the muon anomalous magnetic moment and the observed relic density of dark matter in addition to predictions of the lepton sector.

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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