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arXiv 0901.0557hep-ph
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非弹性暗物质的候选者

Candidates for Inelastic Dark Matter

Yanou Cui, David E. Morrissey, David Poland, Lisa Randall

摘要:

虽然我们还没有确定DAMA数据是否代表了新物理学的真正发现,但在这些解释中,非弹性暗物质(IDM)可以很好地匹配DAMA的能谱,同时不与其他直接探测搜索的结果相矛盾。在本文中,我们调查的一般属性,一个可行的IDM候选人必须有和搜索简单的模型,实现这些属性的自然方式。我们首先确定IDM参数空间的区域,允许直接检测搜索,包括DAMA,特别注意较大的IDM群众。我们观察到,一个非弹性的暗物质候选人与电弱相互作用可以自然地满足观测约束,同时产生正确的热遗迹丰度。我们评论其他几个建议的暗物质的DAMA信号的解释,并表明,提出的替代方案之一-弹性散射的暗物质关闭电子-是强烈不赞成时,调制和未调制的DAMA光谱数据考虑在内。然后,我们概述了IDM模型的一般基本特征,在该模型中,非弹性散射的核介导的大量规范玻色子的交换,并构建自然模型的上下文中的弯曲额外的维度和超对称性。

英文摘要:

Although we have yet to determine whether the DAMA data represents a true discovery of new physics, among such interpretations inelastic dark matter (IDM) can match the energy spectrum of DAMA very well while not contradicting the results of other direct detection searches. In this paper we investigate the general properties that a viable IDM candidate must have and search for simple models that realize these properties in natural ways. We begin by determining the regions of IDM parameter space that are allowed by direct detection searches including DAMA, paying special attention to larger IDM masses. We observe that an inelastic dark matter candidate with electroweak interactions can naturally satisfy observational constraints while simultaneously yielding the correct thermal relic abundance. We comment on several other proposed dark matter explanations for the DAMA signal and demonstrate that one of the proposed alternatives -- elastic scattering of dark matter off electrons -- is strongly disfavored when the modulated and unmodulated DAMA spectral data are taken into account. We then outline the general essential features of IDM models in which inelastic scattering off nuclei is mediated by the exchange of a massive gauge boson, and construct natural models in the context of a warped extra dimension and supersymmetry.

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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