Halo-independent direct detection of momentum-dependent dark matter
Halo-independent direct detection of momentum-dependent dark matter
复制标题
与光环无关的动量相关暗物质直接检测
DOI：
10.1088/1475-7516/2014/10/022
复制
发表时间：
2014
影响因子：
6.4
通讯作者：
I. Shoemaker
中科院分区：
文献类型：
--
作者：
John F. Cherry;M. Frandsen;I. Shoemaker
我们表明，暗物质与原子核相互作用的动量依赖性，可以在直接探测实验中探测，而不需要知道暗物质的速度分布。这是DM微物理学的少数几个性质之一，可以单独用直接探测来确定，给定暗物质在不同目标的多个直接探测实验中的信号。由光介质交换产生的长程相互作用是动量依赖DM的一个例子。对于从交换的无质量介质产生的数据，我们发现，例如，介质质量可以被限制为100 MeV的DM在20-1000 GeV的范围内，在一个晕独立的方式。
We show that the momentum dependence of dark matter interactions with nuclei can be probed in direct detection experiments without knowledge of the dark matter velocity distribution. This is one of the few properties of DM microphysics that can be determined with direct detection alone, given a signal of dark matter in multiple direct detection experiments with different targets. Long-range interactions arising from the exchange of a light mediator are one example of momentum-dependent DM. For data produced from the exchange of a massless mediator we find for example that the mediator mass can be constrained to be ≲ 10 MeV for DM in the 20-1000 GeV range in a halo-independent manner.