论文标题
Xenon1t从非偏见的暗物质的电子后坐力过量
Xenon1T excess from electron recoils of non-relativistic Dark Matter
论文作者
论文摘要
我们表明，如果非相互关系的暗物质相互作用引起的电子后坐力如果最近报道的Xenon1T过量效果很好地符合它们，如果它们是由MEV范围的光伪量表介导的。这是由于所得散射率的有利动量依赖性，这部分补偿了不利的运动学，从而强烈抑制KEV电子后坐力。我们研究介体的现象学，并确定Xenon1t过量的允许参数空间，这与所有实验限制兼容。我们还发现，在这种情况下，可以同时解释异常的磁矩$（g-2）_ {μ，e} $，在这种情况下可以同时解释，以微调的奖励，以几百分之几的顺序进行微调。
We show that electron recoils induced by non-relativistic Dark Matter interactions can fit well the recently reported Xenon1T excess, if they are mediated by a light pseudo-scalar in the MeV range. This is due to the favorable momentum-dependence of the resulting scattering rate, which partially compensates the unfavorable kinematics that tends to strongly suppress keV electron recoils. We study the phenomenology of the mediator and identify the allowed parameter space of the Xenon1T excess which is compatible with all experimental limits. We also find that the anomalous magnetic moments $(g-2)_{μ,e}$ of muons and electrons can be simultaneously explained in this scenario, at the prize of a fine-tuning in the couplings of the order of a few percent.
