First dark matter search results from a surface run of the 10-L DMTPC directional dark matter detector

Author(s)
Ahlen, S.; Battat, J.B.R.; Caldwell, T.; Deaconu, C.; Fedus, W.; ... Show more
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Abstract
The Dark Matter Time Projection Chamber (DMTPC) is a low pressure (75 Torr CF 4 ) 10 liter detector capable of measuring the vector direction of nuclear recoils with the goal of directional dark matter detection. In this Letter we present the first dark matter limit from DMTPC from a surface run at MIT. In an analysis window of 80-200 keV recoil energy, based on a 35.7 g-day exposure, we set a 90% C.L. upper limit on the spin-dependent WIMP-proton cross section of 2.0×10 -33 cm2 for 115 GeV/c 2 dark matter particle mass. Keywords: Dark matter; WIMP; Direction-sensitive; Time projection chamber
Date issued
2010-11
URI
http://hdl.handle.net/1721.1/116451
Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering; Massachusetts Institute of Technology. Laboratory for Nuclear Science; MIT Kavli Institute for Astrophysics and Space Research
Journal
Physics Letters B
Publisher
Elsevier BV
Citation
Ahlen, S. et al. “First Dark Matter Search Results from a Surface Run of the 10-L DMTPC Directional Dark Matter Detector.” Physics Letters B 695, 1–4 (January 2011): 124–129 © 2010 Elsevier B.V.
Version: Final published version
ISSN
0370-2693
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