Detection Of Heavy Dark Matter Particles In DEAP-3600

30 Aug 2021, 17:10
Talk in parallel session Dark Matter and its detection Discussion Panel Dark Matter 1


Michela Lai (University of Cagliari)


DEAP-3600, hosted at SNOLAB, has been designed for the search of WIMPs, Weakly Interacting Massive Particles; its target of 3.3 t of liquid argon makes it the largest direct detection experiment. In addition to its sensitivity to WIMPs, DEAP-3600 is sensitive to super-massive dark matter candidates with masses up to the Planck scale. For particles with masses above 10^{16} GeV and cross-sections with argon above 10^{-24} cm^2, these dark matter particles are expected to reach an underground experiment and give a detectable signal in liquid argon. Due to the large cross-section, the expected signal in DEAP-3600 is a collinear sequence of nuclear recoils in the same acquisition window, giving a very distinguishable and unique signature; hence, we refer to them as Multi-Scattering Heavy Dark Matter Particles.
In this talk, the search for this candidate in three years of data-taking is presented, starting from the expected signal compared to the expected background, and Monte Carlo model developed; then, the results of the unblinding procedure will be presented.

Primary author

Michela Lai (University of Cagliari)

Presentation Materials

Your browser is out of date!

Update your browser to view this website correctly. Update my browser now