Answers are grounded in this paper and cite their sources.
New results after 0.69 kg yr of measurement with an enriched ⁷⁶Ge detector of the Heidelberg-Moscow experiment with an active mass of 2.758 kg are presented. An energy threshold of 9 keV and a background level of 0.042 cts/(kg d keV) in the energy region between 15 keV and 40 keV was reached. The derived limits on the weakly interacting massive particles--nucleon cross section are the most stringent limits on spin-independent interactions obtained to date by using essentially raw data without background subtraction.
No takes yet. Share an insight, caveat, or question.
Baudis et al. (1998) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: