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arXiv 1708.02253hep-ph
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暗物质-核子相互作用的一种抵消机制

A cancellation mechanism for dark matter-nucleon interaction

Christian Gross, Oleg Lebedev, Takashi Toma

摘要:

我们考虑一个简单的希格斯门暗物质模型,在标准模型中补充了一个复杂的标量,其虚部起着作用的WIMP暗物质(DM)。我们表明,直接DM检测截面消失在树的水平和零动量转移由于取消凭借软破缺对称性。这种取消对任何中介质量都是有效的。因此,我们的电弱尺度暗物质很自然地满足了所有的唯象约束。

英文摘要:

We consider a simple Higgs portal dark matter model, where the Standard Model is supplemented with a complex scalar whose imaginary part plays the role of WIMP dark matter (DM). We show that the direct DM detection cross section vanishes at tree level and zero momentum transfer due to a cancellation by virtue of a softly broken symmetry. This cancellation is operative for any mediator masses. As a result, our electroweak scale dark matter satisfies all of the phenomenological constraints quite naturally.

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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