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New constraints on WIMPs from the Canfranc IGEX dark matter search | | A. Morales
; C.E. Aalseth
; F.T. Avignone III
; R. L. Brodzinski
; S. Cebrian
; E. Garcia
; D. Gonzalez
; W. K. Hensley
; I. G. Irastorza
; I. V. Kirpichnikov
; A. A. Klimenko
; H. S. Miley
; J. Morales
; A. Ortiz de Solorzano
; S. B. Osetrov
; V. S. Pogosov
; J. Puimedon
; J. H. Reeves
; M. L. Sarsa
; S. Scopel
; A. A. Smolnikov
; A. G. Tamanyan
; A. A. Vasenko
; S. I. Vasiliev
; J. A. Villar
; | | Date: |
21 Feb 2000 | | Journal: | Phys.Lett. B489 (2000) 268-272 | | Subject: | hep-ex astro-ph hep-ph | | Affiliation: | Zaragoza U., South Carolina U., Pacific Northwest National Laboratory, Richland Inst. of Theor. and Exp. Physics, Moscow, Baksan Neutrino Observ., Yerevan U. | | 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 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 of ~4 keV, have been considered. These data improve the exclusion limits derived from other germanium diode 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. | | Source: | arXiv, hep-ex/0002053 | | Services: | Forum | Review | PDF | Favorites | |
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