Detection of QCD axion dark matter by coherent scattering
Detection of QCD axion dark matter by coherent scattering
复制标题
相干散射检测 QCD 轴子暗物质
DOI：
10.1103/physrevd.105.095030
复制
发表时间：
2022
影响因子：
5
通讯作者：
Shirai Satoshi
中科院分区：
文献类型：
--
作者：
Fukuda Hajime;Shirai Satoshi
QCD轴子是暗物质的一个很有前途的候选者。本文讨论了QCD轴子暗物质与核子之间的弹性散射过程。我们指出，与经典过程相比，相干效应可以使截面得到更大的提高。因此，例如，我们证明了QCD轴子可能在太阳上散射，概率为。此外，由于轴子Dm的数密度很大，人们可能会认为受激发射效应也可以提高横截面。增强因子可以与另一个因子一样大，并且如果该因子存在，则可以通过例如扭转天平实验来检测来自暗物质风的力。然而，也发现存在受激射射因子的抵消，并且作用力太小而无法探测到。
The QCD axion is a promising candidate of the dark matter. In this paper, we discuss elastic scattering processes between nucleons and the QCD axion dark matter. We point out that the cross section can be enhanced by more thanby the coherent effect, compared to classical processes. As a result, for example, we show that QCD axions may scatter at the sun withprobability for. In addition, one may expect stimulated emission effects can also enhance the cross section because the number density of the axion DM is very large. The enhancement factor can be as large as anotherand, if the factor exists, the force from the dark matter wind may be detected via, e.g., torsion balance experiments. However, it is also found that there is a cancellation of the stimulated emission factor and the force is too small to be detected.