Results from a search for light-mass dark matter with a p-type point contact germanium detector.
Publication
, Journal Article
Aalseth, CE; Barbeau, PS; Bowden, NS; Cabrera-Palmer, B; Colaresi, J; Collar, JI; Dazeley, S; de Lurgio, P; Fast, JE; Fields, N; Greenberg, CH ...
Published in: Physical review letters
April 2011
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.
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Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
April 2011
Volume
106
Issue
13
Start / End Page
131301
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences
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Aalseth, C. E., Barbeau, P. S., Bowden, N. S., Cabrera-Palmer, B., Colaresi, J., Collar, J. I., … CoGeNT Collaboration, . (2011). Results from a search for light-mass dark matter with a p-type point contact germanium detector. Physical Review Letters, 106(13), 131301. https://doi.org/10.1103/physrevlett.106.131301
Aalseth, C. E., P. S. Barbeau, N. S. Bowden, B. Cabrera-Palmer, J. Colaresi, J. I. Collar, S. Dazeley, et al. “Results from a search for light-mass dark matter with a p-type point contact germanium detector.” Physical Review Letters 106, no. 13 (April 2011): 131301. https://doi.org/10.1103/physrevlett.106.131301.
Aalseth CE, Barbeau PS, Bowden NS, Cabrera-Palmer B, Colaresi J, Collar JI, et al. Results from a search for light-mass dark matter with a p-type point contact germanium detector. Physical review letters. 2011 Apr;106(13):131301.
Aalseth, C. E., et al. “Results from a search for light-mass dark matter with a p-type point contact germanium detector.” Physical Review Letters, vol. 106, no. 13, Apr. 2011, p. 131301. Epmc, doi:10.1103/physrevlett.106.131301.
Aalseth CE, Barbeau PS, Bowden NS, Cabrera-Palmer B, Colaresi J, Collar JI, Dazeley S, de Lurgio P, Fast JE, Fields N, Greenberg CH, Hossbach TW, Keillor ME, Kephart JD, Marino MG, Miley HS, Miller ML, Orrell JL, Radford DC, Reyna D, Tench O, Van Wechel TD, Wilkerson JF, Yocum KM, CoGeNT Collaboration. Results from a search for light-mass dark matter with a p-type point contact germanium detector. Physical review letters. 2011 Apr;106(13):131301.
Published In
Physical review letters
DOI
EISSN
1079-7114
ISSN
0031-9007
Publication Date
April 2011
Volume
106
Issue
13
Start / End Page
131301
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences