Seminari

Aperitivo scientifico: Searching for Weakly interacting massive particles with DEAp-3600

Name: Aperitivo scientifico: Searching for Weakly interacting massive particles with DEAp-3600
Start: 2017-06-08T11:30:00+02:00
End: 2017-06-08T12:30:00+02:00
Location: Department of Physics and Astronomy

by Dr Pietro Giampa (TRIUMF, Ca)

Thursday 8 Jun 2017, 11:30 → 12:30 Europe/Rome

sala riunioni (Department of Physics and Astronomy)

sala riunioni

Department of Physics and Astronomy

via Irnerio 46

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}. 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, and in-situ sanding of the acrylic vessel to mitigate radon exposure of surfaces during construction and fabrication. The WIMP search run began in 2016. This presentation gives an overview of the DEAP-3600 experiment and reports on recent results.