Search for Axions with the CDMS Experiment
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We report on the first axion search results from the Cryogenic Dark Matter Search (CDMS) experiment at the Soudan Underground Laboratory. An energy threshold of 2 keV for electron-recoil events allows a search for possible solar axion conversion into photons or local galactic axion conversion into electrons in the germanium crystal detectors. The solar axion search sets an upper limit on the Primakov coupling g[subscript aγγ] of 2.4×10[superscript -9] GeV[superscript -1] at the 95% confidence level for an axion mass less than 0.1 keV/c[superscript 2]. This limit benefits from the first precise measurement of the absolute crystal plane orientations in this type of experiment. The galactic axion search analysis sets a world-leading experimental upper limit on the axioelectric coupling g[subscript ae[over-bar] e] of 1.4×10[superscript -12] at the 90% confidence level for an axion mass of 2.5 keV/c[superscript 2].
Date issued
2009-10Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. School of Science; MIT Kavli Institute for Astrophysics and Space ResearchJournal
Physical Review Letters
Publisher
American Physical Society
Citation
CDMS Collaboration et al. “Search for Axions with the CDMS Experiment.” Physical Review Letters 103.14 (2009): 141802. ©2009 American Physical Society.
Version: Final published version
ISSN
0031-9007