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DEAP-3600 Dark Matter Search

Authors :: DEAP Collaboration
Amaudruz, P. -A.
Batygov, M.
Beltran, B.
Bonatt, J.
Boulay, M. G.
Broerman, B.
Bueno, J. F.
Butcher, A.
Cai, B.
Chen, M.
Chouinard, R.
Cleveland, B. T.
Dering, K.
DiGioseffo, J.
Duncan, F.
Flower, T.
Ford, R.
Giampa, P.
Gorel, P.
Graham, K.
Grant, D. R.
Guliyev, E.
Hallin, A. L.
Hamstra, M.
Harvey, P.
Jillings, C. J.
Kuźniak, M.
Lawson, I.
Li, O.
Liimatainen, P.
Majewski, P.
McDonald, A. B.
McElroy, T.
McFarlane, K.
Monroe, J.
Muir, A.
Nantais, C.
Ng, C.
Noble, A. J.
Ouellet, C.
Palladino, K.
Pasuthip, P.
Peeters, S. J. M.
Pollmann, T.
Rau, W.
Retière, F.
Seeburn, N.
Singhrao, K.
Skensved, P.
Smith, B.
Sonley, T.
Tang, J.
Vázquez-Jáuregui, E.
Veloce, L.
Walding, J.
Ward, M.
Source :: Nuclear and Particle Physics Proceedings 273-275 (2016) 340-346
Publication Year :: 2014
Abstract: The DEAP-3600 experiment is located 2 km underground at SNOLAB, in Sudbury, Ontario. It is a single-phase detector that searches for dark matter particle interactions within a 1000-kg fiducial mass target of liquid argon. A first generation prototype detector (DEAP-1) with a 7-kg liquid argon target mass demonstrated a high level of pulse-shape discrimination (PSD) for reducing $\beta$/$\gamma$ backgrounds and helped to develop low radioactivity techniques to mitigate surface-related $\alpha$ backgrounds. Construction of the DEAP-3600 detector is nearly complete and commissioning is starting in 2014. The target sensitivity to spin-independent scattering of Weakly Interacting Massive Particles (WIMPs) on nucleons of 10$^{-46}$ cm$^2$ will allow one order of magnitude improvement in sensitivity over current searches at 100 GeV WIMP mass. This paper presents an overview and status of the DEAP-3600 project and discusses plans for a future multi-tonne experiment, DEAP-50T.<br />Comment: International Conference on High Energy Physics (ICHEP 2014), Valencia, 2014