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arXiv 1209.6358hep-phastro-ph.HEhep-exnucl-ex
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暗物质带电激发的直接约束

Direct constraints on charged excitations of dark matter

Haipeng An, Maxim Pospelov, Josef Pradler

摘要:

如果弱尺度暗物质的中性成分伴随着由小于~20 MeV的质量间隙分离的带电激发,WIMP可以与核形成稳定的束缚态。我们表明,在实验上寻找无中微子双β衰变的最新进展设置的第一个直接约束的放能反应的WIMP核束缚态的形成。我们计算了代表性模型中这种过程的速率,并表明双β衰变实验对WIMP双重模型的大部分参数空间提供了独特的灵敏度,补充了宇宙学和直接对撞机搜索所施加的约束。

英文摘要:

If the neutral component of weak-scale dark matter is accompanied by a charged excitation separated by a mass gap of less than ~20 MeV, WIMPs can form stable bound states with nuclei. We show that the recent progress in experiments searching for neutrinoless double-beta decay sets the first direct constraint on the exoergic reaction of WIMP-nucleus bound state formation. We calculate the rate for such process in representative models and show that the double-beta decay experiments provide unique sensitivity to a large fraction of parameter space of the WIMP doublet model, complementary to constraints imposed by cosmology and direct collider searches.

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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