论文标题
热产生的标量单线作为Leptonphilic暗物质
Thermally produced scalar singlet as leptonphilic dark matter
论文作者
论文摘要
这项工作提出了标准模型的简单扩展，其中存在标量单元和嗜睡标量双线。标量曲线可以充当热产生的暗物质。它通过$ s $渠道歼灭了卵子，并从Breit中受益-Winger共振，因此当前的热平均横截面得到了极大的增强。分析了各向同性弥漫性$γ$ ray背景和正确的暗物质遗物丰度的约束。我们发现增强的横截面可以符合所需的横截面，以解释宇宙电子/正电子过量。
This work proposes a simple extension of the Standard Model where a scalar singlet and a leptonphilic scalar doublet exist. The scalar singlet could act as thermally produced dark matter. It annihilates into leptons through $s$-channel and benefit from the Breit--Winger resonance, so current thermally averaged cross-section are greatly enhanced. The constraints from the isotropic diffuse $γ$-ray background and correct dark matter relic abundance are analyzed. We find that the enhanced cross-section could fit the needed cross-section to explain the cosmic electron/positron excess.
