Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector

C.E. Aalseth , P.S. Barbeau , N.S. Bowden , B. Cabrera-Palmer , J. Colaresi , J.I. Collar , S. Dazeley , P. De Lurgio

show 19 more authors

G. Drake J.E. Fast N. Fields C.H. Greenberg T.W. Hossbach M.E. Keillor J.D. Kephart M.G. Marino H.S. Miley M.L. Miller J.L. Orrell D.C. Radford D. Reyna R.G.H. Robertson R.L. Talaga O. Tench T.D. Van Wechel J.F. Wilkerson K.M. Yocum (CoGeNT collaboration)

Authors on Pith no claims yet

classification 🌌 astro-ph.CO hep-exphysics.ins-det

keywords damadarkdetectoreffecteventsgermaniumlibramatter

0 comments

read the original abstract

We report on several features present in the energy spectrum from an ultra low-noise germanium detector operated at 2,100 m.w.e. By implementing a new technique able to reject surface events, a number of cosmogenic peaks can be observed for the first time. We discuss several possible causes for an irreducible excess of bulk-like events below 3 keVee, including a dark matter candidate common to the DAMA/LIBRA annual modulation effect, the hint of a signal in CDMS, and phenomenological predictions. Improved constraints are placed on a cosmological origin for the DAMA/LIBRA effect.

This paper has not been read by Pith yet.

Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector

discussion (0)