论文标题
通过直接检测和宇宙/实验室约束，带有深色光子介质的GEV量表无弹性暗物质
GeV Scale Inelastic Dark Matter with Dark Photon Mediator via Direct Detection and Cosmological/Laboratory Constraints
论文作者
论文摘要
我们提出了一个新的GEV量表非弹性暗物质（DM）的候选人。我们的构造具有无反常的$ u（1）_x^{} $仪表组，带有深色光子介体，并且可以实现标量或费米子非弹性DM。它具有高度的预测性和可测试性。我们在Xenon1t实验中使用电子与电子的光无弹性DM的散射速率以及Xenon1t，Cresst-III，CDEX-1B和Darkside-50实验中的核研究。我们通过电子后坐力检测来解决最近的Xenon1t异常。通过电子后坐力和核后坐力（包括Migdal效应）结合了Xenon1t的约束，我们预测了无弹性DM质量$ \ lyseSim 1.5 $ GEV。我们进一步通过DM遗物丰度，较重的DM组件的寿命和实验室约束来进一步分析界限，从中我们可以从中确定未来探针的可行参数空间。这为GEV量表非弹性DM的理论和实验测试提供了重要的基准。
We propose a new candidate of GeV scale inelastic dark matter (DM). Our construction has an anomaly-free $U(1)_X^{}$ gauge group with dark photon mediator, and can realize either scalar or fermionic inelastic DM. It is highly predictive and testable. We study the scattering rate of light inelastic DM with electrons in the XENON1T experiment and with nuclei in the XENON1T, CRESST-III, CDEX-1B and DarkSide-50 experiments. We resolve the recent XENON1T anomaly via electron recoil detection. Combining the XENON1T constraints from both electron recoils and nuclear recoils (including Migdal effect), we predict the inelastic DM mass $\lesssim 1.5$GeV. We further analyze the bounds by the DM relic abundance, the lifetime of the heavier DM component, and laboratory constraints, from which we identify the viable parameter space for the future probe. This provides an important benchmark for the theories and experimental tests of GeV scale inelastic DM.
