The role of ionization electrons in direct dark matter detection

Details The role of ionization electrons in direct dark matter detection The role of ionization electrons in direct dark matter detection

2004-01-21

arxiv.org/abs/hep-ph/0401151v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 19 pages, 8 PostScript figures

Scientific paper

10.1016/j.physletb.2004.11.085

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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