论文标题
搜索u（1）$ _ {l_μ-l_τ} $带中微子望远镜的暗物质
Search for U(1)$_{L_μ-L_τ}$ charged Dark Matter with neutrino telescope
论文作者
论文摘要
我们在u（1）$ _ {l_μ-l_τ} $理论中研究一个简单的dirac fermion暗物质模型。新的轻量表玻色子$ x $在暗物质物理和Muon $ G-2 $异常的解释中都扮演着重要角色。观察到的暗物质遗物密度是由大u（1）$ _ {l_μ-l_τ} $充电实现的，而无需引入$ x $ boson的共振效果。作为该模型的副产品，根据质谱，预测了Sub-Gev暗物质$ψ$的特征性中微子特征。我们以独立的方式以$ψ\barψ\ to $ψ\barψ\到xx $进行分析，以及$ x \ tonν\barν$的分析。在以前的过程中，中微子的能量光谱是单色的，而在后一个过程中是碗形。我们还评估了Super-Kamiokande和未来Hyper-Kamiokande检测器的灵敏度。分析最终应用于u（1）$ _ {l_μ-l_τ} $暗物质模型。
We study a simple Dirac fermion dark matter model in U(1)$_{L_μ-L_τ}$ theory. The new light gauge boson $X$ plays important roles in both dark matter physics and the explanation for the muon $g-2$ anomaly. The observed dark matter relic density is realized by a large U(1)$_{L_μ-L_τ}$ charge without introducing a resonance effect of the $X$ boson. As a by-product of the model, characteristic neutrino signatures from sub-GeV dark matter $ψ$ are predicted depending on the mass spectrum. We formulate the analysis of $ψ\barψ\to ν\barν$, and of $ψ\barψ\to XX$ followed by $X\toν\barν$, in a model independent way. The energy spectrum of neutrinos in the former process is monochromatic while in the latter process is bowl-shape. We also evaluate sensitivity at Super-Kamiokande and future Hyper-Kamiokande detectors. The analysis is finally applied to the U(1)$_{L_μ-L_τ}$ dark matter model.
