Conveners
W2-5 Dark matter searches (PPD) | Recherche de matière sombre (PPD)
- Isabel Trigger (TRIUMF (CA))
The DEAP-3600 detector based 2km underground at SNOLAB (Sudbury, Canada) is a dark matter direct detection experiment. The detector consists of a single-phase liquid argon (LAr) target, of 3279 kg mass. Currently, there have been two WIMP dark matter searches performed by the DEAP-3600 collaboration; for both results, a cut-and-count approach was employed. In this talk, the development of a...
For the last decade, bubble chamber detectors have filled a niche in probing the spin-dependent dark matter parameter space, due to the use of fluorinated targets and the innate rejection of electron recoil events. Located at the SNOLAB underground facility, PICO-40L is the successor to the PICO-60 experiment which produced world-leading WIMP-proton cross section limits, with final results...
The NEWS-G collaboration employs Spherical Proportional Counters (SPCs) to search for low-mass dark matter. Their excellent sensitivity to the minute energy depositions expected from light dark matter scattering make SPCs fundamentally well-suited for this task, but demands exquisite understanding of the detector response at the level of single electron/ion pair events. A novel UV laser...
The DEAP-3600 experiment searches for spin-independent interactions of weakly interacting massive particle (WIMP) dark matter candidates. The detector utilizes a 3279 kg mass of liquid argon as the dark matter target, which is contained in a spherical acrylic vessel. Results from the analysis of data taken during the first year of operation were released in February 2019. The analysis of this...
The PICO experiment aims to detect nuclear recoils caused by interactions with WIMP dark matter using bubble chambers with superheated $\textrm{C}_{3}\textrm{F}_{8}$. PICO-40L is a detector with a 40-litre active volume currently being installed at SNOLAB, while PICO-500 is a ton-scale detector in the design phase. This talk discusses the physics reach of both detectors, including the...
The Super Cryogenic Dark Matter Search (SuperCDMS) uses cryogenic semiconductor detectors to search for dark matter, primarily in the form of Weakly Interacting Massive Particles (WIMPs) scattering off of target nuclei. However, there are promising dark matter candidates that are absorbed by bound electrons in a manner analogous to the photoelectric effect, a process referred to as dark...