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arXiv 1208.0336hep-phastro-ph.CO
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动力学暗物质的直接探测

Direct Detection of Dynamical Dark Matter

Keith R. Dienes, Jason Kumar, Brooks Thomas

摘要:

动态暗物质(DDM)是暗物质物理学的另一个框架,其中暗物质候选者是具有不同质量,寿命和宇宙学丰度的组成场的系综。在这个框架中,正是这些量在整个系综中相互平衡,确保了现象学的可行性。在本文中,我们研究的DDM合奏的直接检测的前景。特别是,我们研究了DDM模型的参数空间上的直接检测实验的电流限制所施加的约束,我们评估了检测这样的合奏的前景,并根据下一代直接检测实验的数据将其与传统的暗物质候选者区分开来。具体来说,我们主要集中在通过自旋独立的相互作用的弹性散射占主导地位的情况下,原子核和组成粒子的合奏之间的相互作用速率。我们还简要讨论了修改这些假设的影响。

英文摘要:

Dynamical dark matter (DDM) is an alternative framework for dark-matter physics in which the dark-matter candidate is an ensemble of constituent fields with differing masses, lifetimes, and cosmological abundances. In this framework, it is the balancing of these quantities against each other across the ensemble as a whole which ensures phenomenological viability. In this paper, we examine the prospects for the direct detection of a DDM ensemble. In particular, we study the constraints imposed by current limits from direct-detection experiments on the parameter space of DDM models, and we assess the prospects for detecting such an ensemble and distinguishing it from traditional dark-matter candidates on the basis of data from the next generation of direct-detection experiments. For concreteness, we focus primarily on the case in which elastic scattering via spin-independent interactions dominates the interaction rate between atomic nuclei and the constituent particles of the ensemble. We also briefly discuss the effects of modifying these assumptions.

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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