A maximum likelihood analysis of the CoGeNT public dataset
The CoGeNT detector, located in the Soudan Underground Laboratory in Northern Minnesota, consists of a 475 grams (fiducial mass of 330 grams) target mass of p-type point contact germanium detector that measures the ionization charge created by nuclear recoils. This detector has searched for recoils created by dark matter since December of 2009. We analyze the public dataset from the CoGeNT experiment to search for evidence of dark matter interactions with the detector. We perform an unbinned maximum likelihood fit to the data and compare the significance of different WIMP hypotheses relative to each other and the null hypothesis of no WIMP interactions. This work presents the current status of the analysis.
AIP Conference Proceedings
Digital Object Identifier (DOI)
Chris Kelso. (2016) "A maximum likelihood analysis of the CoGeNT public dataset", AIP Conference Proceedings 1743, 020006. https://doi.org/10.1063/1.4953273