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The role of ionization electrons in direct dark matter detection

J. D. Vergados·H. Ejiri
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Abstract

In this paper we estimate the event rates of neutralino-nucleus scattering leading to electron emission by the atomic ionization. We find that the branching ratio for detecting electrons vis a vis the traditional neutralino nucleus elastic scattering sensitively depends on the threshold energy. In the case of a light target and a neutralino mass of 100 GeV we estimate it to be around 10 percent assuming a reasonable threshold energy of 250 eV.

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J. D. Vergados, H. Ejiri. 2004-11-12. The role of ionization electrons in direct dark matter detection. https://doi.org/10.1016/j.physletb.2004.11.085

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