Speaker
Jonathan Davis
(IPPP, Durham University)
Description
Data from the CoGeNT experiment has been claimed to be compatible with a light Dark Matter particle scattering off nucleons, to a significance of approximately 2.5 sigma. I will critically assess this possibility, using the methods introduced in arXiv:1405.0495. I present a Bayesian and frequentist analysis of CoGeNT data, with particular focus on the removal of surface events. By marginalising over the uncertainty in the surface event background, I find less than one sigma evidence for Dark Matter recoils in CoGeNT data.
Primary author
Jonathan Davis
(IPPP, Durham University)
