论文标题
新的重费对复杂标量暗物质现象学对两个Higgs Doublet模型的影响
Effects of New Heavy Fermions on Complex Scalar Dark Matter Phenomenology in Gauged Two Higgs Doublet Model
论文作者
论文摘要
我们研究了在两个Higgs Doublet模型（G2HDM）中纳入复杂标量暗物质（DM）现象学上的新的重费。我们发现，对于高于1 TEV的DM质量，重型夸克散布到标准模型（SM）夸克和胶子中，占主导地位的热平均横截面与复杂标量DM的遗物丰度相关的热平均横截面。我们证明，QCD Sommerfeld校正以及QCD结合状态在确定DM遗物中的影响可以忽略不计。我们表明，允许的参数空间受到当前的Planck Relic密度数据以及适用于DM直接搜索的Xenon1T限制的限制。
We study the inclusion of new heavy fermions on complex scalar dark matter (DM) phenomenology within gauged two Higgs doublet model (G2HDM). We find that for DM mass above 1 TeV, heavy quarks coannihilations into the Standard Model (SM) quarks and gluons dominate the thermally-averaged cross section relevant for the relic abundance of complex scalar DM. We demonstrate that the effects of QCD Sommerfeld correction as well as QCD bound state formation in determining the DM relic are negligible. We show that the allowed parameter space is significantly constrained by the current PLANCK relic density data as well as XENON1T limit appropriate for DM direct search.
