Conveners
M3-8 Dark Matter Experiment II (PPD) | Experiences de matière sombre II (PPD)
- Marie-Cécile Piro (University of Alberta)
The NEWS-G direct dark matter search experiment uses spherical proportional counters (SPC) with light noble gases to explore low WIMP masses. The first results obtained with an SPC prototype operated with neon gas at the Laboratoire Souterrain de Modane (LSM) have already set competitive results for low-mass WIMPs. The next phase of the experiment consists of a large 140 cm diameter SPC...
The DEAP-3600 experiment (Dark matter Experiment using Argon Pulseshape discrimination) at SNOLAB in Sudbury, Ontario is searching for dark matter via the elastic scattering of argon nuclei by dark matter particles as they traverse through the detector. The detector uses 255 photomultiplier tubes (PMTs) looking at ~3300kg of liquid argon in a spherical acrylic vessel. In addition to being...
The DEAP-3600 experiment located at SNOLAB is a single phase liquid argon detector looking to confirm the existence of dark matter via direct detection. The energy signature of the dark matter may be examined with 255 photomultiplier tubes (PMTs) measuring the scintillation signal produced via nuclear recoils of argon nuclei by a dark matter particle. As a result, modelling background channels...
A bubble chamber using fluorocarbons or liquid noble gases is a competitive technology to detect a low-energy nuclear recoil due to elastic scattering of weakly interacting massive particle (WIMP) dark matter. It consists of pressure and a temperature-controlled vessel filled with a liquid in the superheated state. Bubble nucleation from liquid to vapor phase can only occur if the energy...
The Spherical Proportional Counter (SPC) is used in NEWS-G to search for low-mass Weakly Interacting Massive Particles (WIMPs). UV laser and Ar37 data calibrations were previously taken at the Laboratoire Souterrain de Modane (LSM) with a 1.35m diameter SPC filled with pure CH4 gas. To verify our understanding of the detector behaviour and the physics model we are using, a simulation of the...
NEWS-G is a direct detection dark matter experiment specializing in low mass (sub ~1 GeV) WIMP (Weakly Interacting Massive Particles) searches. NEWS-G uses spherical proportional counters (SPCs), a type of gas-ionization detector capable of observing the signal from single-electrons via a small (~1 mm radius) high-voltage anode sensor. While SPCs primarily use noble gases as their target...
