Conveners
W2-8 Cosmic Frontier: Dark Matter IV (PPD) / Frontière cosmique: matière sombre IV (PPD)
- Darren Grant (University of Alberta)
Thomas McElroy
(University of Alberta)
15/06/2016, 13:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
DEAP-3600, comprised of a 1 tonne fiducial mass of ultra-pure liquid argon, is designed to achieve world-leading sensitivity for spin-independent dark matter interactions. DEAP-3600 uses an array of photomultiplier tubes (PMTs) to measure the time distribution of scintillation light arising from the de-excitation of argon dimers. This measurement allows background events from Ar-39 decays to...
SAHAR BAHRAMI
(CONCORDIA UNIVERSITY)
15/06/2016, 13:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
In this work we analyze the effects of introducing vectorlike leptons in the Higgs triplet model to provide a scenario that can explain both neutrino masses and provide a Dark Matter candidate, two essential shortcomings of the Standard Model. We investigate constraints, including the invisible decay width of the Higgs boson and the electroweak precision variables, and impose restrictions on...
Mr
Pietro Giampa
(Queen's University)
15/06/2016, 13:45
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The DEAP-3600 experiment, located 6800 feet underground at the SNOLAB facility, uses 3.6 tons of liquid argon for a direct detection search for weakly-interacting massive particle (WIMP) dark matter. The target sensitivity to the spin-independent WIMP-nucleon cross section is 10$^{-46}$ cm$^{2}$ at 100 GeV/c$^{2}$ WIMP mass. The success of dark matter experiments depends critically on...
Robyn Campbell
(Carleton University)
15/06/2016, 14:00
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We consider a variant of the Standard Model with a Higgs-like dilaton, extended to include a singlet scalar dark matter candidate. In this model, the properties of the dilaton are constrained by the observed Higgs properties, dark matter relic abundance, and dark matter direct detection limits, as well as the latest collider limits. We place constraints on the free parameters of the model:...
Courtney Mielnichuk
(for the DEAP Collaboration, University of Alberta, Department of Physics)
15/06/2016, 14:15
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The DEAP-3600 experiment searches for spin-independent interactions of weakly interacting massive particle (WIMP) dark matter candidates. The detector utilizes a 3600 kg mass of liquid argon as the dark matter target, which is contained in a spherical acrylic vessel. There is an opening at the top of the acrylic vessel where the cooling system is located, in the ‘neck’ of the detector. The...
Mr
Shihao Wu
(Memorial University Grenfell Campus)
15/06/2016, 14:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Based on the simple U’(1) extension of Standard Model (SM), we have used Dark Vector boson kinetic and mass mixings to generate the new beyond the SM extension: dark photon and Z’ bosons. Both dark photon and Z’ have different masses and couplings to the original SM particles defined by the set of mixing parameters. In addition, Z’ boson...
