论文标题
来自中微子质量机制的宇宙射线签名来自风味依赖性量规对称模型的暗物质签名
Cosmic-Ray Signatures of Dark Matter from a Flavor Dependent Gauge Symmetry Model with Neutrino Mass Mechanism
论文作者
论文摘要
We propose an extension to the Standard Model accommodating two families of Dirac neutral fermions and Majorana fermions under additional ${U(1)_{e-μ} \times Z_3\times Z_2}$ symmetries where ${U(1)_{e-μ}}$ is a flavor dependent gauge symmetry related to the first and second family of the lepton sector, which features a two-loop诱导中微子质量模型。通过最小化当前的中微子振荡数据和两个质量差正方形并同时取消量规异常，这两个家族受到青睐。结果，我们对中微子肿块有一个预测。最轻的狄拉克中立费米恩是一个候选暗物质的候选者，其二级相互作用仅限于电子，muon和中微子，这使得很难在直接的暗物质搜索中检测到，以及以$γ$ rays的形式集中于$τ$ - 渠道的间接搜索。但是，可以通过搜索电子和正电子宇宙射线中的暗物质特征来探测它，并允许解释在350-400 GEV左右出现的结构中出现的结构作为其特征，并以增强因子$ \ $ 40的breit-wigner wigner intihihihihihration-wigner的增强器增强。
We propose an extension to the Standard Model accommodating two families of Dirac neutral fermions and Majorana fermions under additional ${U(1)_{e-μ} \times Z_3\times Z_2}$ symmetries where ${U(1)_{e-μ}}$ is a flavor dependent gauge symmetry related to the first and second family of the lepton sector, which features a two-loop induced neutrino mass model. The two families are favored by minimally reproducing the current neutrino oscillation data and two mass difference squares and canceling the gauge anomalies at the same time. As a result, we have a prediction for neutrino masses. The lightest Dirac neutral fermion is a dark matter candidate with tree-level interaction restricted to electron, muon and neutrinos, which makes it difficult to detect in direct dark matter search as well as indirect search focusing on the $τ$-channel, such as through $γ$-rays. It may however be probed by search for dark matter signatures in electron and positron cosmic rays, and allows interpretation of a structure appearing in the CALET electron+positron spectrum around 350-400 GeV as its signature, with a boost factor $\approx$40 Breit-Wigner enhancement of the annihilation cross section.
