Conveners
PPD Poster Session | Session d'affiches PPD (9)
- Steven Robertson
Radon-222 and its daughters are a primary background within SNO+, a large liquid scintillator detector located deep underground at SNOLAB, designed to detect rare neutrino interactions. Therefore it is crucial to determine the remaining trace amounts contributing to the experiments background signal carefully.
A cryogenic radon trapping system is used to monitor the backgrounds observed in...
The DEAP-3600 dark matter experiment is a single phase liquid argon (LAr) based detector located 2km underground at the SNOLAB facility near Sudbury, Ontario. This experiment requires thorough characterization of all expected backgrounds in order to push the current limits on the spin-independent Weakly Interacting Massive Particle (WIMP) scattering cross section. As such, key systematics must...
Although the nature and properties of dark matter (DM) are not well known, it is expected to have some large scale gravitational effects. The DAMA collaboration claims to have made a direct detection of DM through the observation of an annual modulated signal in the 2-6 keV region, which is an expected feature of the currently accepted model for DM. However, the NaI crystals used for this...
The Super Cryogenic Dark Matter Search (SuperCDMS) hunts for direct evidence of dark matter in the form of WIMPs. Cryogenic Germanium detectors are deployed in a well shielded environment deep underground to minimize interactions from cosmogenic and radiogenic particles. Particle interactions in the detector deposit vibrational energy (phonons) and free electron-hole pairs. Sensors on the...
The DEAP-3600 spin-independent WIMP search experiment has been taking data since 2016. In order to exclude WIMP-like backgrounds, it is necessary to make a fiducial volume cut. This is only possible through effective event position reconstruction. The results of Monte Carlo studies on the probability of events that occur outside the fiducial volume being reconstructed within the fiducial...
DEAP-3600 is a direct-detection dark matter experiment using natural liquid argon as its target material. This experiment is located 2km underground in the SNOLAB facility at VALE’s Creighton Mine near Sudbury, Ontario. Natural atmospheric argon has three long-lived radioactive isotopes, one of which ($^{39}$Ar) contributes significantly to the overall rate of background events in DEAP-3600....
The SNO+ experiment is searching for neutrinoless double beta decay with Tellurium-130 isotope. Tellurium is synthesised from Telluric Acid into Tellurium Butane Diol (TeBD), this is dissolved in 780 tonnes of liquid scintillator (Linear Alkyl Benzene, LAB), and this is then circulated back into the acrylic vessel of the detector. In the first phase of the competitive neutrinoless double beta...
The Standard Model in 1967 (Salam 1968, Weinberg 1967) incorporated the theoretical Higgs boson unified theory for the weak and electromagnetic interactions. In 2012 Higgs boson was confirmed as a new particle with characteristics very similar to those first predicted theoretically in 1964 (Higgs 1964). Standard Model is the theory currently accepted by the scientific community to explain the...
The Super Cryogenic Dark Matter Search (SuperCDMS) will be one of the leading efforts to directly search for Weakly Interacting Massive Particles (WIMPs) at the low mass scale (below 10 GeV/$c^{2}$). The SuperCDMS SNOLAB data acquisition (DAQ) and trigger system will use the MIDAS (Maximum Integrated Data Acquisition System) program - a flexible, open source C++-based DAQ framework, with...
The Super Cryogenic Dark Matter Search (SuperCDMS) operates cryogenic detectors to search for a particle candidate constituting approximately 85% of the matter in the universe. The cryogenic system of the previous experimental setup at the underground laboratory in Soudan, Minnesota was shown to introduce vibrations that limited the sensitivity of the experiment. As a first step towards...
