论文标题
通过电磁多物直接检测矢量暗物质
Direct detection of vector dark matter through electromagnetic multipoles
论文作者
论文摘要
暗物质颗粒即使是电中性的，它们也可以通过电磁多极矩与标准模型颗粒相互作用。在本文中，我们关注复杂载体暗物质候选者的电磁特性，可以通过七个形式来描述。由于暗物质和核多极矩的相互作用，我们计算出与核的差分散射横截面，并且在直接检测实验中，我们从暗物质信号的非观察到了前者的上限。我们还提出了一个模型，其中暗物质粒子是深色$ su（2）$对称性的量规玻色子，其中包含重型新费米子，在深色$ su（2）$对称性下和电磁$ u（1）$对称性下收取。新的费米子在一个环水平电磁多极矩处诱导，这可能导致直接检测实验中可检测的信号。
Dark matter particles, even if they are electrically neutral, could interact with the Standard Model particles via their electromagnetic multipole moments. In this paper, we focus on the electromagnetic properties of the complex vector dark matter candidate, which can be described by means of seven form factors. We calculate the differential scattering cross-section with nuclei due to the interactions of the dark matter and nuclear multipole moments, and we derive upper limits on the former from the non-observation of dark matter signals in direct detection experiments. We also present a model where the dark matter particle is a gauge boson of a dark $SU(2)$ symmetry, and which contains heavy new fermions, charged both under the dark $SU(2)$ symmetry and under the electromagnetic $U(1)$ symmetry. The new fermions induce at the one loop level electromagnetic multipole moments, which could lead to detectable signals in direct detection experiments.
