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Aalseth, C E; Barbeau, P S; Cerdeño, D G; Colaresi, J; Collar, J I; de Lurgio, P; Drake, G; Fast, J E; Greenberg, C H; Hossbach, T W; Kephart, J D; Marino, M G; Miley, H S; Orrell, J L; Reyna, D; Robertson, R G H; Talaga, R L; Tench, O; Van Wechel, T D; Wilkerson, J F; Yocum, K M
Physical review letters, 12/2008, Letnik: 101, Številka: 25Journal Article
A claim for evidence of dark matter interactions in the DAMA experiment has been recently reinforced. We employ a new type of germanium detector to conclusively rule out a standard isothermal galactic halo of weakly interacting massive particles as the explanation for the annual modulation effect leading to the claim. Bounds are similarly imposed on a suggestion that dark pseudoscalars might lead to the effect. We describe the sensitivity to light dark matter particles achievable with our device, in particular, to next-to-minimal supersymmetric model candidates.
