PS13 Particle Astrophysics (dark matter)
First 10 kg of naked germanium detectors installed in liquid nitrogen in GENIUS Test-Facility in GRAN-SASSO
Max-Planck-Institut für Kernphysik, P.O. Box 10 39 80, D-69029 Heidelberg, Germany
Accepted: 20 January 2004
Published online: 5 March 2004
The GENIUS Test Facility has come into operation in Gran Sasso on May 5, 2003 with its first ten kg of naked Ge detectors in liquid nitrogen. This is the first time that this novel technique for extreme background reduction in search for rare decays is applied under the background conditions of an underground laboratory. GENIUS-TF has the potential to check the DAMA evidence for cold dark matter by modulation, and possibly, to improve the accuracy of the recently observed first signal for neutrinoless double beta decay.
PACS: 95.35d Dark matter search – 95.55.Vj WIMPs – 14.60.Pq Neutrino mass – 23.40.Bw Low-background measurements – 12.60.Jv High-purity Ge detectors
© Società Italiana di Fisica, Springer-Verlag, 2004