Journal
PHYSICAL REVIEW LETTERS
Volume 106, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.131301
Keywords
-
Categories
Funding
- NSF [PHY-0653605, PHY-0239812, PHY-0114422]
- LLNL [DE-AC52-07NA27344]
- Office of Nuclear Physics, U.S. DOE
- DOE/NNSA [2010-1375J, LLNL-JRNL-425007]
Ask authors/readers for more resources
We report on several features in the energy spectrum from an ultralow-noise germanium detector operated deep underground. By implementing a new technique able to reject surface events, a number of cosmogenic peaks can be observed for the first time. We discuss an irreducible excess of bulklike events below 3 keV in ionization energy. These could be caused by unknown backgrounds, but also dark matter interactions consistent with DAMA/LIBRA. It is not yet possible to determine their origin. Improved constraints are placed on a cosmological origin for the DAMA/LIBRA effect.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available