Search for an annual modulation in a p-type Point Contact germanium dark matter detector.
نویسندگان
چکیده
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 ∼2.8σ, limited by the short exposure.
منابع مشابه
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عنوان ژورنال:
- Physical review letters
دوره 107 14 شماره
صفحات -
تاریخ انتشار 2011