First Dark Matter Search Results from a Surface Run of the 10-L DMTPC Directional Dark Matter Detector

Details First Dark Matter Search Results from a Surface Run of the 10-L DMTPC Directional Dark Matter Detector First Dark Matter Search Results from a Surface Run of the 10-L DMTPC Directional Dark Matter Detector

2010-06-15

arxiv.org/abs/1006.2928v3

Phys.Lett.B695:124-129,2011

Physics

High Energy Physics

High Energy Physics - Experiment

accepted for publication in Physics Letters B

Scientific paper

10.1016/j.physletb.2010.11.041

The Dark Matter Time Projection Chamber (DMTPC) is a low pressure (75 Torr CF4) 10 liter detector capable of measuring the vector direction of nuclear recoils with the goal of directional dark matter detection. In this paper we present the first dark matter limit from DMTPC. 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 x 10^{-33} cm^{2} for 115 GeV/c^2 dark matter particle mass.

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