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 counts/(kg d keV) in the energy region between 15 keV and 40 keV was reached.The derived limits on the WIMP--nucleon cross section are the most stringent limits on spin--independent interactions obtained to date by using essentially raw data without background subtraction.
@article{arxiv.hep-ex/9811045,
title = {New limits on dark--matter WIMPs from the Heidelberg--Moscow experiment},
author = {L. Baudis and J. Hellmig and G. Heusser and H. V. Klapdor--Kleingrothaus and S. Kolb and B. Majorovits and H. Päs and Y. Ramachers and H. Strecker and V. Alexeev and A. Bakalyarov and A. Balysh and S. T. Belyaev and V. I. Lebedev and S. Zhukov},
journal= {arXiv preprint arXiv:hep-ex/9811045},
year = {2019}
}
Comments
8 pages (latex) including 5 postscript figures and 2 tables. To appear in Phys. Rev. D, 15. December 1998