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arXiv 1401.0216hep-ph
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LUX光下的暗物质

Dark Matter in Light of LUX

Patrick J. Fox, Gabriel Jung, Peter Sorensen, Neal Weiner

摘要:

暗物质直接探测的前景已经被最近的一系列实验所深刻改变。虽然有些人声称信号与暗物质一致,但其他人几乎没有看到与暗物质一致的事件。假定的检测结果往往是不相容的,彼此的背景下,天真的自旋无关的散射,以及与零的结果。特别是,鉴于DM解释的三个事件最近报告的CDMS-Si实验和LUX实验的第一个结果之间的冲突,有强烈的需要重新审视的假设,进入DM解释的信号和限制。我们试图重新审视一些粒子物理学,天体物理学和实验的不确定性。具体来说,我们研究放热散射,同位旋相关的耦合,修改后的晕模型,通过天体物理学独立的技术,和变化的假设闪烁光在液体氙。我们发现,只有一个高度调谐的同位旋依赖的情况下仍然是一个可行的解释声称的检测,除非闪烁特性的LIGO是显着不同的LUX实验所使用的假设。

英文摘要:

The landscape of dark matter direct detection has been profoundly altered by the slew of recent experiments. While some have claimed signals consistent with dark matter, others have seen few, if any, events consistent with dark matter. The results of the putative detections are often incompatible with each other in the context of naive spin-independent scattering, as well as with the null results. In particular, in light of the conflicts between the DM interpretation of the three events recently reported by the CDMS-Si experiment and the first results of the LUX experiment, there is a strong need to revisit the assumptions that go into the DM interpretations of both signals and limits. We attempt to reexamine a number of particle physics, astrophysics and experimental uncertainties. Specifically, we examine exothermic scattering, isospin-dependent couplings, modified halo models through astrophysics independent techniques, and variations in the assumptions about the scintillation light in liquid Xenon. We find that only a highly tuned isospin-dependent scenario remains as a viable explanation of the claimed detections, unless the scintillation properties of LXe are dramatically different from the assumptions used by the LUX experiment.

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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