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arXiv 2203.04210hep-phhep-ex
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探索暗物质-核子相互作用非相对论有效理论的实验互补性

Complementarity of experiments in probing the non-relativistic effective theory of dark matter-nucleon interactions

Anja Brenner, Gonzalo Herrera, Alejandro Ibarra, Sunghyun Kang, Stefano Scopel, Gaurav Tomar

摘要:

暗物质-核子相互作用的非相对论有效理论对自旋为1/2的暗物质依赖于28个耦合强度。由于有效理论的参数空间很大,大多数寻找暗物质的实验都假设只有一个耦合强度是非零的。另一方面,暗物质模型一般会在非相对论性的极限下导致几种相互干扰的相互作用,因此公布的极限不能直接应用于模型预测。我们提出了一种方法来确定严格的上限的暗物质核子相互作用强度,包括所有可能的操作员之间的干扰。我们举例说明的方法来获得模型独立的上限的相互作用强度从零搜索结果从XENON 1 T,PICO-60和IceCube。对于某些相互作用,耦合强度的限制放宽了一个以上的数量级。我们还提出了一种方法,可以结合不同的实验结果,从而利用不同的目标之间的协同作用,探索参数空间的暗物质-核子相互作用。

英文摘要:

The non-relativistic effective theory of dark matter-nucleon interactions depends on 28 coupling strengths for dark matter spin up to 1/2. Due to the vast parameter space of the effective theory, most experiments searching for dark matter interpret the results assuming that only one of the coupling strengths is non-zero. On the other hand, dark matter models generically lead in the non-relativistic limit to several interactions which interfere with one another, therefore the published limits cannot be straightforwardly applied to model predictions. We present a method to determine a rigorous upper limit on the dark matter-nucleon interaction strength including all possible interferences among operators. We illustrate the method to derive model independent upper limits on the interaction strengths from the null search results from XENON1T, PICO-60 and IceCube. For some interactions, the limits on the coupling strengths are relaxed by more than one order of magnitude. We also present a method that allows to combine the results from different experiments, thus exploiting the synergy between different targets in exploring the parameter space of dark matter-nucleon interactions.

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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