Conveners
R1-7 Cosmic Frontier: Dark Matter V (PPD) / Frontière cosmique: matière sombre V (PPD)
- Gilles Gerbier (Queen's Univesrity)
Guillaume Giroux
(Queen's University)
16/06/2016, 08:15
Particle Physics / Physique des particules (PPD)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
The PICO collaboration uses superheated liquid detectors, or "bubble chambers", to search for dark matter. Recent operation of the PICO-2L and PICO-60 detectors at SNOLAB allows the most stringent constraints for WIMP dark matter interaction in the spin-dependent sector despite the presence of an anomalous background attributed to the presence of dust particulates in the superheated fluid. I...
Dr
Christian Ouellet
(Carleton University)
16/06/2016, 08:30
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
Astrophysical lines of evidence point towards dark matter constituting 27\% of the energy density of the Universe and 85\% of all matter.
DEAP-3600, located at SNOLAB in Sudbury Canada, is a single phase liquid argon direct detection dark matter experiment.
The light produced by nuclear recoil within liquid argon has considerable light yield and is characteristic of the interaction ...
Dr
Rashid Mehdiyev
(Carleton Unversity, Department of Physics)
16/06/2016, 08:45
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
Rashid Mehdiyev, for the DEAP Collaboration,
Carleton University, Department of Physics
DEAP-3600 is a direct dark matter search experiment at SNOLAB. The optical system for DEAP-3600 consists of 255 high quantum efficiency photomultipier tubes (PMTs), which detect and monitor the scintillation light produced by particle interactions in the liquid argon target of the detector. The PMT...
Scott Fallows
(University of Alberta)
16/06/2016, 09:00
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The PICO collaboration searches for dark matter particles with superheated fluid detectors operated under conditions in which they are insensitive to the electron recoils that constitute the traditionally dominant background for direct detection searches. By measuring the acoustic energy emitted during bubble formation, these detectors are also able to discriminate against alpha particle...
Dr
Ian Lawson
(SNOLAB)
16/06/2016, 09:15
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The DAMIC detector, currently taking data at SNOLAB, is a Dark Matter search experiment
that employs scientific grade CCDs made of silicon as target material. The low readout noise of the CCDs yield to a ionization energy threshold below 60 eVee and provides optimal sensitivity for low mass WIMPs (< 20 GeV). The pixelization (15 microns) and superb energy resolution of the detectors allow...
Bei Cai
(Queen's University)
16/06/2016, 09:30
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The NEWS (New Experiments with Spheres) project employs novel spherical gas detectors that are very sensitive to very low energy deposition. Each detector consists of a spherical gas volume with a small central electrode forming a radial electric field. At Queen's University we are currently working with a few prototype detectors for their characterization under different working conditions...
Dr
Alvine Kamaha
(Queen's University)
16/06/2016, 09:45
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
Modern precision astronomy strongly suggests the presence of Dark Matter particles whose hunt is among the forefront activities in particle physics nowadays. The NEWS-SNO project (News Experiment With Spheres in SNOLAB) is setting up to probe very low mass Dark Matter particles using a large spherical gaseous detector and very light target nuclei such as H, He and Ne. A 60 cm diameter...
Dr
RUSLAN PODVIIANIUK
(Laurentian University)
16/06/2016, 10:00
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The PICO (PICASSO+COUPP) experiment searches for cold dark matter through the direct detection of weakly interacting massive particles (WIMPs) via their spin-dependent interactions with fluorine at SNOLAB, Sudbury - ON. The detection principle is based on the bubble chamber technique. The muon veto for PICO-60 experiment has been developed to reject the signals from muons. Muons interaction...
Dr
Belina von Krosigk
(University of British Columbia)
16/06/2016, 10:15
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
A compelling set of diverse astrophysical observations points to the existence of dark matter, motivating the quest for its direct detection. The most widely accepted dark matter candidates are weakly interacting massive particles (WIMPs). SuperCDMS, the advanced successor of the Cryogenic Dark Matter Search, is designed to directly observe galactic WIMPs via keV-scale nuclear recoils in...
