Author/Authors :
A Morales، نويسنده , , C.E Aalseth، نويسنده , , F.T. Avignone III، نويسنده , , R.L. Brodzinski، نويسنده , , S Cebri?n، نويسنده , , E Garc??a، نويسنده , , D Gonz?lez، نويسنده , , W.K Hensley، نويسنده , , I.G Irastorza، نويسنده , , I.V Kirpichnikov، نويسنده , , A.A Klimenko، نويسنده , , H.S. Miley، نويسنده , , J Morales، نويسنده , , A Ortiz de Sol?rzano، نويسنده , , S.B Osetrov، نويسنده , , V.S Pogosov، نويسنده , , J Puimed?n، نويسنده , , J.H. Reeves، نويسنده , , M.L. Sarsa، نويسنده , , S Scopel، نويسنده , , et al.، نويسنده ,
Abstract :
The IGEX Collaboration enriched 76Ge double-beta decay detectors are currently operating in the Canfranc Underground Laboratory with an overburden of 2450 m.w.e. A recent upgrade has made it possible to use them in a search for WIMPs. A new exclusion plot, σ(m), has been derived for WIMP-nucleon spin-independent interaction. To obtain this result, 30 days of data from one IGEX detector, which has an energy threshold Ethr∼4 keV, have been considered. These data improve the exclusion limits derived from other ionization (non-thermal) germanium detector experiments in the ∼50 GeV DAMA region, and show that with a moderate improvement of the background below 10 keV, the DAMA region may be tested with an additional 1 kg-year of exposure.
