Abstract
Dark matter candidates at Planck scale masses might have been produced by many cosmological mechanisms in the early Universe. Underground detectors like DEAP-3600, designed for the search of Weakly Interacting Massive Particles, can actually be sensitive to these super-heavy dark matter candidates. The collaboration has performed a blind analysis of data from DEAP-3600 over 813 days of lifetime, by looking for a multi-scattering signal. As no event is found after the unblinding, leading exclusion limits are set, constraining dark matter in the mass range of (8.3 × 106 — 1.2 × 1019) GeV/c2, and dark matter-argon nucleus cross-sections in the range (1.0 × 10−23 — 2.4 × 10−18) cm2.
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