28 July 2020 to 6 August 2020
virtual conference
Europe/Prague timezone

Dark matter search results from DEAP-3600 at SNOLAB

29 Jul 2020, 18:55
25m
virtual conference

virtual conference

Talk 09. Dark Matter Detection Dark Matter Detection

Speaker

Simon Viel (Carleton University)

Description

Dark matter search results and a detailed background model for DEAP-3600 will be presented. DEAP-3600 is searching for dark matter interactions with a liquid argon target, shielded from cosmic rays by over 2 km of rock at SNOLAB in Sudbury, Canada. The spherical detector consists of 3.3 tonnes of liquid argon in a large ultralow-background acrylic cryostat instrumented with 255 photomultiplier tubes. DEAP-3600 is sensitive to nuclear recoils from dark matter particles, which cause the emission of prompt scintillation light. Backgrounds come from alpha particles on the inner detector surfaces, from external neutrons, from argon-39 beta decays, and from trace radioactivity in detector components. This talk presents the latest results from DEAP-3600, which demonstrate excellent performance for pulse-shape discrimination, event reconstruction, background rejection and sensitivity to dark matter.

Secondary track (number) 08

Primary author

Simon Viel (Carleton University)

Presentation Materials