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arXiv 0909.3126hep-phastro-ph.GA
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来自CDMS低能电子反冲谱的镜像暗物质的证据

Evidence for mirror dark matter from the CDMS low energy electron recoil spectrum

R. Foot

摘要:

我们指出,镜像暗物质预测低能量($E_R \stackrel{<}{\sim} 2$ keV)电子反冲从镜像电子散射以及核反冲从镜像离子散射。前者的效果进行检查,并适用于最近发布的低能电子反冲数据的CDMS合作。我们推测,在CDMS中看到的电子反冲的急剧上升低于2千电子伏可能是由于镜像电子散射,并表明数据所建议的参数大致与DAMA/天秤座和DAMA/NaI实验中观察到的年度调制信号的镜像暗物质解释一致。因此,CDMS数据提供了初步的证据,支持DAMA实验的镜像暗物质解释,这可以通过未来的低能电子反冲测量进行更严格的检查。

英文摘要:

We point out that mirror dark matter predicts low energy ($E_R \stackrel{<}{\sim} 2$ keV) electron recoils from mirror electron scattering as well as nuclear recoils from mirror ion scattering. The former effect is examined and applied to the recently released low energy electron recoil data from the CDMS collaboration. We speculate that the sharp rise in electron recoils seen in CDMS below 2 keV might be due to mirror electron scattering and show that the parameters suggested by the data are roughly consistent with the mirror dark matter explanation of the annual modulation signal observed in the DAMA/Libra and DAMA/NaI experiments. Thus, the CDMS data offer tentative evidence supporting the mirror dark matter explanation of the DAMA experiments, which can be more rigorously checked by future low energy electron recoil measurements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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