Search for an Annual Modulation in a-Type Point Contact Germanium Dark Matter Detector
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Open Access
- 26 September 2011
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 107 (14) , 141301
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. Unoptimized estimators yield a statistical significance for a modulation of , limited by the short exposure.
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- National Science Foundation
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