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arXiv 1401.4253hep-phastro-ph.COastro-ph.HE
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PDKEEPAAAAB杂质散射的PDKEEPAAAWIMP不能解释DAMA信号

GeV WIMPs scattering off of OH impurities cannot explain the DAMA signal

Stefano Profumo, Farinaldo S. Queiroz

摘要:

在DAMA晶体中存在OH杂质的情况下,GeV尺度的WIMP弹性散射离开氢核,其自旋独立截面为$\sim 10^{-33}\ {\rm cm}^2$,这可能解释DAMA实验观察到的年度调制,同时与其他直接暗物质搜索一致,因为散射将发生在低于其他探测器能量阈值的能量下。在这项工作中,我们研究了这种可能性,并表明,独立的DAMA晶体中的OH杂质的水平,由于几个原因,这种情况下不提供一个可行的解释DAMA信号。

英文摘要:

In the presence of OH impurities in the DAMA crystals, GeV-scale WIMPs elastically scattering off of hydrogen nuclei with a spin independent cross section of $\sim 10^{-33}\ {\rm cm}^2$ might explain the annual modulation observed by the DAMA experiment, while being consistent with other direct dark matter searches, as scattering would occur at energies below the energy threshold of other detectors. In this work we examine this possibility and show that, independent of the level of OH impurities in the DAMA crystals, for several reasons this scenario does not provide a viable explanation to the DAMA signal.

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