Conveners
(W2-7) Future of Cosmic Frontier: Dark Matter I - PPD-DNP-DTP / Avenir de la frontière cosmique: matière sombre I - PPD-DPN-DPT
- Matt Dobbs (Lawrence Berkeley National Lab. (US))
Aksel Hallin
(University of Alberta)
18/06/2014, 13:45
Particle Physics / Physique des particules (PPD)
Oral (Non-Student) / orale (non-étudiant)
The DEAP-3600 dark matter detector consists of 3,600kg of liquid argon in an ultra-pure acrylic cryogenic vessel and is in the final stages of construction, with commissioning beginning at SNOLAB. The experiment observes scintillation light with 255 high-efficiency room temperature PMTs. Most backgrounds are mitigated by ensuring excellent radiopurity and with a high efficiency neutron...
Benjamin Broerman
(Queen's University)
18/06/2014, 14:00
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
DEAP-3600 is a single phase liquid argon dark matter detector. Particle interactions in liquid argon produce light at a peak wavelength of 128nm, which is below the wavelength range of efficient detection with photomultiplier tubes. To shift the light to the region of peak PMT efficiency, the inner surface of the acrylic vessel is coated with tetraphenyl butadiene, an organic wavelength...
Alan Robinson
(University of Chicago)
18/06/2014, 14:15
Particle Physics / Physique des particules (PPD)
Oral (Student, Not in Competition) / Orale (Étudiant(e), pas dans la compétition)
Bubble chambers are a compelling technology to use in the search for Weakly Interacting Massive Particle (WIMP) dark matter. They can be operated in a regime that is sensitive to the nuclear recoils produced by dark matter interactions, but insensitive to the typically-dominant background of electron recoils. Using fluorinated targets, they provide data that is complementarity to other...
Prof.
Scott Oser
(University of British Columbia)
18/06/2014, 14:30
Particle Physics / Physique des particules (PPD)
Invited Speaker / Conférencier invité
The nature of the non-baryonic dark matter that is believed to dominate the matter budget of the universe is still obscure, in spite of decades of searches using increasingly sophisticated detectors. Although it might seem that every few years will yield another order of magnitude improvement in limits on dark matter interactions with ordinary matter, to be continued ad infinitum, in fact the...
