Recently, the XENON1T experiment has reported the possible detection of an excess in the electronic recoil spectrum. Such an excess may indicate the presence of new physics. In this work, we suggest that the scattering of mirror electrons with ordinary electrons through photon–mirror photon kinetic mixing with parameter $ϵ\sim {10}^{-12}{(n_{{\mathrm{e}}^{\prime }}/0.2\mathrm{c}{\mathrm{m}}^{-\mathrm{3}})}^{-1/2}{(v_{\mathrm{c}}^0/5\times {10}^9\text{cm}{\text{s}}^{-1})}^{1/2}$ may account for the excess electronic recoil events in XENON1T, where $n_{{\mathrm{e}}^{\prime }}$ is the density of mirror electron and $v_{\mathrm{c}}^0$ is the cutoff velocity of the mirror electron arriving at the earth. Interestingly, this parameter to interpret the excess of XENON1T electronic recoil spectrum are consistent with the constrains of Darkside50.

最近，XENON1T实验报告了可能检测到电子反冲频谱中的多余部分。这样的过量可能表明存在新的物理学。在这项工作中，我们建议通过光子-镜面光子动力学混合将镜面电子与普通电子的散射与参数$ϵ〜{10}^{-12}{（{ñ}_{{\mathrm{Ë}}^{\prime }}/0.2\mathrm{C}{\mathrm{米}}^{-\mathrm{3}}）}^{-\mathrm{1个}/\mathrm{2个}}{（v_{\mathrm{C}}^0/5\times {10}^9\text{厘米}{\text{s}}^{-\mathrm{1个}}）}^{\mathrm{1个}/\mathrm{2个}}$ 可能解释了XENON1T中多余的电子后座力事件，其中 ${ñ}_{{\mathrm{Ë}}^{\prime }}$ 是镜面电子的密度， $v_{\mathrm{C}}^0$是到达地球的镜像电子的截止速度。有趣的是，该参数用来解释XENON1T电子反冲频谱的过量部分与Darkside50的约束是一致的。