论文标题
轻质Lepton Portal暗物质遇到LHC
Light lepton portal dark matter meets the LHC
论文作者
论文摘要
我们检查了大型强子对撞机（LHC）对Lepton Portal Dark Matter的敏感性，其质量低于10 $ \，$ GEV。该型号具有额外的双重标量字段和单元迪拉克暗物质，它们与左撇子瘦素具有Yukawa的相互作用。要通过热冻结正确产生深色物质丰度，需要在额外的标量之间进行大量分裂，从而在$ {\ cal O}（\ cal o}（10）（10）$ GEV和Electroweak量表中的重中性和带电的标量。在本文中，我们关注具有随后的特定模型标量衰减的额外标量的电动成对生产，并通过LHC运行$ \，2美元的数据和高光度LHC（HL-LHC）的发现潜力评估当前约束。事实证明，理论上允许的参数空间的很大一部分可以通过考虑Slepton搜索和单$ $ z $之间的互补性以及缺失的横向能量搜索来测试HL-LHC。我们还讨论了相同的带电标量生产作为模型的独特预测，以及在热暗物质方案中对撞机搜索的含义。
We examine the sensitivity of the Large Hadron Collider (LHC) to light lepton portal dark matter with its mass below 10$\,$GeV. The model features an extra doublet scalar field and singlet Dirac dark matter, which have Yukawa interactions with left-handed leptons. To correctly produce the dark matter abundance via the thermal freeze-out, a large mass splitting among the extra scalars is required, thus providing a light neutral scalar below ${\cal O}(10)$GeV and heavy neutral and charged scalars at the electroweak scale. In this paper, we focus on the electroweak pair-production of the extra scalars with subsequent model-specific scalar decays and evaluate the current constraints with the LHC Run$\,$2 data and the discovery potential at the High Luminosity LHC (HL-LHC). It turns out that a large part of the theoretically allowed parameter space can be tested at the HL-LHC by taking into account complementarity between slepton searches and mono-$Z$ plus missing transverse energy search. We also discuss same-sign charged scalar production as a unique prediction of the model, and the implication of the collider searches in the thermal dark matter scenario.
