Speaker
Dr
Fatemighomi Nasim
(Royal Holloway University of London)
Description
DEAP-3600 is a single phase liquid argon (LAr) dark matter experiment, located 2 km underground at SNOLAB, in Sudbury, Ontario. The detector has 1 tonne fiducial mass of LAr. The target sensitivity to spin-independent scattering of 100 GeV WIMPs is 10$^{-46}$ cm$^{2}$ which gives one order of magnitude improvement over current results. The DEAP-3600 background target is < 1 background events in the WIMP region of interest in 3 tonne-years. The strategies to achieve this background are pulse shape discrimination to mitigate electron recoils, ultra low radioactive materials for detector construction to reduce neutron and alpha backgrounds, in-situ sanding of the acrylic vessel to mitigate radon exposure of surfaces during construction and fabrication. The experiment is currently in commissioning phase and will begin physics data taking later this year. This presentation gives an overview of the DEAP-3600 experiment and shows some of the recent commissioning data.
Primary author
Dr
Fatemighomi Nasim
(Royal Holloway University of London)
