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arXiv 2302.09747hep-ph
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模$A_4$对称中的Fermi-LAT GeV过剩和μ子$g-2$

Fermi-LAT GeV excess and muon $g-2$ in a modular $A_4$ symmetry

Jongkuk Kim, Hiroshi Okada

摘要:

最近对μ子反常磁偶极矩(μ子$g-2$)的测量表明,可能存在与μ子主要相互作用的新物理。从费米-LAT观测到的伽马射线过剩表明,暗物质湮灭成一个特定的带电费米子。我们提出了一个成功的模型,同时解释费米-LAT GeV的伽玛射线过剩和相当大的μ子$g-2$与模块$A_4$对称性。由于这种对称性的性质,我们的DM只与μ子对相互作用,我们解释了相当大的μ子$g-2$没有遭受任何轻子味违反的限制。我们用数值的方法给出了我们对费米-LAT、DM和μ子$g-2$的残余密度的每一次测量的允许空间,随机扫描我们的输入参数。

英文摘要:

The recent measurement of muon anomalous magnetic dipole moment (muon $g-2$) suggests that there might exist new physics that dominantly interacts with muons. The observed gamma-ray excess from Fermi-LAT indicates that dark matter annihilates into a specific charged fermions. We propose a successful model simultaneously to explain the Fermi-LAT GeV gamma-ray excess and sizable muon $g-2$ with a modular $A_4$ symmetry. Due to nature of this symmetry, our DM only interacts with pairs of muon and we explain sizable muon $g-2$ without suffering from constraints of any lepton flavor violations. We numerically show our allowed spaces on each measurements of Fermi-LAT, relic density of DM and muon $g-2$, randomly scanning our input parameters.

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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