Search for low-mass WIMPs in a 0.6 kg day exposure of the DAMIC   experiment at SNOLAB
  We present results of a dark matter search performed with a 0.6 kg day exposure of the DAMIC experiment at the SNOLAB underground laboratory. We measure the energy spectrum of ionization events in the bulk silicon of charge-coupled devices down to a signal of 60 eV electron equivalent. The data are consistent with radiogenic backgrounds, and constraints on the spin-independent WIMP-nucleon elastic-scattering cross section are accordingly placed. A region of parameter space relevant to the potential signal from the CDMS-II Si experiment is excluded using the same target for the first time. This result obtained with a limited exposure demonstrates the potential to explore the low-mass WIMP region (<10 GeV/$c^{2}$) of the upcoming DAMIC100, a 100 g detector currently being installed in SNOLAB. 
A. Aguilar-Arevalo, D. Amidei, X. Bertou, M. Butner, G. Cancelo, A.   Casta\~neda V\'azquez, B.A. Cervantes Vergara, A.E. Ch...
astro-ph.CO astro-ph.IM hep-ex hep-ph physics.ins-det