Directly detecting isospin-violating dark matter
Directly detecting isospin-violating dark matter
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DOI：
10.1103/physrevd.97.056004
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发表时间：
2017-11
影响因子：
5
通讯作者：
Chris Kelso;J. Kumar;D. Marfatia;Pearl Sandick
中科院分区：
文献类型：
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作者：
Chris Kelso;J. Kumar;D. Marfatia;Pearl Sandick
我们考虑了多个暗物质直接探测实验的前景，以确定暗物质候选者的相互作用是否违反了同位旋。我们专注于理论上动机良好的例子违反同位旋暗物质（IVDM），包括模型中，暗物质与核的相互作用是由暗光子，Z，或夸克介导的。我们确定，最好的前景区分IVDM的同位旋不变的情况下出现的暗光子或Z介导的相互作用，理想的实验方案将包括大曝光氙和氙为基础的探测器。如果这样的模型目前只是逃避目前的直接检测极限，那么人们可以区分这样的模型与标准的同位旋不变的情况下，两个探测器的数量级为100吨-年的曝光。
We consider the prospects for multiple dark matter direct detection experiments to determine if the interactions of a dark matter candidate are isospin-violating. We focus on theoretically well-motivated examples of isospin-violating dark matter (IVDM), including models in which dark matter interactions with nuclei are mediated by a dark photon, a Z, or a squark. We determine that the best prospects for distinguishing IVDM from the isospin-invariant scenario arise in the cases of dark photon- or Z-mediated interactions, and that the ideal experimental scenario would consist of large exposure xenon- and neon-based detectors. If such models currently just evade current direct detection limits, then one could distinguish such models from the standard isospin-invariant case with two detectors with of order 100 ton-year exposure.