论文标题
轻质大窗户的窗户窗口深色物质
Light mass window of lepton portal dark matter
论文作者
论文摘要
我们探索了一种新颖的可能性，即暗物质在Lepton Portal暗物质模型中具有低于1GEV的光质量。在模型中有Yukawa耦合，涉及暗物质，左手瘦素和额外的标量双线。在光质量区域中，暗物质是通过将其an灭入中微子的热产生的。为了获得正确的遗物丰度并避免对撞机的边界，需要中性标量为轻度，而带电标量需要比Electroweak量表重。通过调整标量势中的四分之一耦合或引入额外的单重标量标量来实现这种质谱。事实证明，10MEV-10GEV的质量区域几乎没有实验性和观察性约束。我们还指出，从中微子望远镜的银河系暗物质an灭中寻找额外的中微子通量是测试我们模型的最佳方法。
We explore a novel possibility that dark matter has a light mass below 1GeV in a lepton portal dark matter model. There are Yukawa couplings involving dark matter, left-handed leptons and an extra scalar doublet in the model. In the light mass region, dark matter is thermally produced via its annihilation into neutrinos. In order to obtain the correct relic abundance and avoid collider bounds, a neutral scalar is required to be light while charged scalars need to be heavier than the electroweak scale. Such a mass spectrum is realized by adjusting quartic couplings in the scalar potential or introducing an extra singlet scalar. It turns out that the mass region of 10MeV-10GeV is almost free from experimental and observational constraints. We also point out that searches for extra neutrino flux from galactic dark matter annihilations with neutrino telescopes are the best way to test our model.
