New limits on dark-matter weakly interacting particles from the Heidelberg-Moscow experiment
- 24 December 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 59 (2) , 022001
- https://doi.org/10.1103/physrevd.59.022001
Abstract
New results after 0.69 kg yr of measurement with an enriched 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.
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