论文标题
Sub-Tev Singlet Singlet标量暗物质和Electroweak真空稳定性，具有Fermions
Sub-TeV Singlet Scalar Dark Matter and Electroweak Vacuum Stability with Vector Like Fermions
论文作者
论文摘要
我们通过通过其他矢量（如费米子）扩展了最小的标量SINGLET DM设置，研究了子TEV制度中具有质量质量的标量单线暗物质（DM）。尽管最小的标量单元DM仅满足质量的遗物和直接检测约束，但仅超过TEV，但其门户网站耦合与Fermions（例如费米子）的耦合会打开其他共同耗电通道。这些矢量之类的媒介也有助于实现Electroweak真空稳定性，一直到Planck量表。我们发现，对于一代矢量，例如夸克（Quarks），包括$ su（2）_l $ doublet和单身式，标量单线DM，带有数百个GEV的singlet DM确实可以满足遗物，直接检测和其他相关约束，同时也使Electroweak真空绝对稳定。也可以通过引入vector（如莱型子），但有三代人来实现这一目标。尽管具有夸克之类的矢量的模型很小，但像Lepton Doublet和中性单重的三代矢量也可以在一个循环水平上产生光中微子的质量。
We study a scalar singlet dark matter (DM) having mass in sub-TeV regime by extending the minimal scalar singlet DM setup by additional vector like fermions. While the minimal scalar singlet DM satisfies the relic and direct detection constraints for mass beyond TeV only, presence of its portal coupling with vector like fermions opens up additional co-annihilation channels. These vector like fermions also help in achieving electroweak vacuum stability all the way up to Planck scale. We find that for one generation of vector like quarks consisting of a $SU(2)_L$ doublet and a singlet, scalar singlet DM with mass a few hundred GeV can indeed satisfy relic, direct detection and other relevant constraints while also making the electroweak vacuum absolutely stable. The same can be achieved by introducing vector like leptons too, but with three generations. While the model with vector like quarks is minimal, the three generations of vector like lepton doublet and neutral singlet can also give rise to light neutrino mass at one loop level.
