论文标题

最小的延伸中的轻暗物质,还有两个额外的真实单曲

Light dark matter in a minimal extension with two additional real singlets

论文作者

Maniatis, Markos

论文摘要

直接搜索具有100 GEV级的重量标量暗物质比对于1 GEV的轻暗物质要敏感得多。出现了一个问题,即暗物质是否可以轻,到目前为止已经逃脱了检测。我们研究了标准模型的简单扩展,并使用两个其他真实的单曲。我们表明,这种简单的扩展可能会提供观察到的遗物暗物质密度,既不会干扰大爆炸核合成,也没有干扰宇宙微波背景辐射观测值,并满足了不同大小星系的结块行为条件。一个标准模型的希格斯 - 波森双线和这两个单元的潜力引起了HIGGS现象学变化,特别是,预计可见的隐形Higgs-boson衰减速率可以预期,可以通过缺失Atlas和CMS实验的横向动量搜索来检测到。

The direct searches for heavy scalar dark matter with a mass of order 100 GeV are much more sensitive than for light dark matter of order 1 GeV. The question arises whether dark matter could be light and has escaped detection so far. We study a simple extension of the Standard Model with two additional real singlets. We show that this simple extension may provide the observed relic dark matter density, does neither disturb big-bang nucleosynthesis nor the cosmic microwave background radiation observations and fulfills the conditions of clumping behavior for different sizes of galaxies. The potential of one Standard Model-like Higgs-boson doublet and the two singlets gives rise to a changed Higgs phenomenology, in particular, an enhanced invisible Higgs-boson decay rate is expected, detectable by missing transversal momentum searches at the ATLAS and CMS experiments at CERN.

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