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Título : Experimental constraints on a dark matter origin for the DAMA annual modulation effect
Autor : Aalseth, C.E., Barbeau, P.S., Cerdeño, David G., Colaresi, J., Collar, Juan I., Lurgio, P. de, 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., Tench, O., Van Wechel, T.D., Wilkerson, J.F., Yocum, K.M.
Palabras clave : Astrophysics
High Energy Physics - Experiment
Instrumentation and Detectors
Fecha de publicación : 31-Jul-2008
Citación : IFT-UAM/CSIC-08-39
Resumen: 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 (WIMPs) as the explanation for the annual modulation effect leading to the claim. Bounds are similarly imposed on a suggestion that dark pseudoscalars mightlead 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.
Descripción : 4 pages.-- PACS numbers: 85.30.-z, 95.35.+d, 95.55.Vj, 14.80.Mz.-- Submitted on 5 Jul 2008 (v1), last revised 31 Jul 2008 (this version, v4): v4 introduces recent results from arXiv:0807.3279 and arXiv:0807.2926. Sensitivity to pseudoscalars is revised in light of the first. Discussion on the subject added.
Citación : arXiv:0807.0879v4 [astro-ph]
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