Search for an Annual Modulation in a p -Type Point Contact Germanium Dark Matter Detector
C. E. Aalseth, J. F. Wilkerson, J. Diaz Leon, J. I. Collar, T. W. Hossbach, P. S. Barbeau, N. Fields, M. L. Miller, M. G. Marino, D. C. Radford, K. M. Yocum, J. E. Fast, Martin E. Keillor, J. D. Kephart, A. Knecht, J. Colaresi, J. L. Orrell, H.S. Miley
Abstract
Fifteen months of cumulative CoGeNT data are examined for indications of an annual modulation, a predicted signature of Weakly Interacting Massive Particle (WIMP) interactions. Presently available data support the presence of a modulated component of unknown origin, with parameters prima facie compatible with a galactic halo composed of light-mass WIMPs.
Topics & Concepts
GermaniumDetectorSemiconductor detectorDark matterModulation (music)PhysicsPoint (geometry)OptoelectronicsOpticsAstrophysicsMathematicsSiliconGeometryAcousticsDark Matter and Cosmic PhenomenaCCD and CMOS Imaging SensorsPhotocathodes and Microchannel Plates