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arXiv 1702.07236hep-ph
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单重态-二重态暗物质模型中的CP破坏效应

Effect of CP violation in the singlet-doublet dark matter model

Tomohiro Abe

摘要:

我们重新审视了单重态-二重态暗物质模型,特别强调了CP破坏对暗物质现象学的影响。暗扇区中的CP破坏引起了费米暗物质候选者与SM希格斯玻色子的赝标相互作用。赝标量相互作用帮助暗物质候选者逃避了暗物质直接探测实验的强约束。我们表明,该模型可以解释的暗物质密度的测量值,即使暗物质直接探测实验没有观察到任何信号。我们还表明,电子的电偶极矩是一个重要的补充,直接检测检验这个模型。它的值小于当前的上限,但在未来实验的范围内。

英文摘要:

We revisit the singlet-doublet dark matter model with a special emphasis on the effect of CP violation on the dark matter phenomenology. The CP violation in the dark sector induces a pseudoscalar interaction of a fermionic dark matter candidate with the SM Higgs boson. The pseudoscalar interaction helps the dark matter candidate evade the strong constraints from the dark matter direct detection experiments. We show that the model can explain the measured value of the dark matter density even if dark matter direct detection experiments do not observe any signal. We also show that the electron electric dipole moment is an important complement to the direct detection for testing this model. Its value is smaller than the current upper bound but within the reach of future experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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