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Nigel Smith (SNOLab)10/05/2021, 11:00
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Jeter Hall (SNOLAB)10/05/2021, 11:10
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Sunil Golwala10/05/2021, 12:00
SuperCDMS SNOLAB will search for dark matter using phonon- and ionization-mediated sub-Kelvin detectors in a new low-background, cryogenic facility under construction in the SNOLAB Ladder Lab. The experiment will have sensitivity to the mass range 0.5-5 GeV using nuclear recoils and to MeV masses using electron recoils. We anticipate science data-taking will begin in 2023 with two science runs...
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Alan Robinson (Université de Montréal)10/05/2021, 12:20
Freon filled bubble chambers have several characteristics that strongly complement other dark matter search techniques. Starting operation in 2023, PICO-500 will be the focus of PICO scientific efforts through this decade. Larger detectors require a candidate material to replace the synthetic silica as the inner vessel container. Several candidate materials are under investigation, and...
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Mark Boulay (Carleton University)10/05/2021, 12:40
It has long been known that most of the matter in our Universe is dark. The direct detection of dark matter particle interactions is one of the most important topics in particle physics - a positive measurement would provide unambiguous evidence of the particle nature of dark matter in the Universe. In this talk we will present an overview of the phased approach to dark matter searches by the...
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Prof. Marc Schumann (Albert Ludwigs Universitaet Freiburg (DE))10/05/2021, 13:30
I will present the science case and the status of DARWIN, a liquid xenon time projection chamber (TPC) with a target mass of ~40 t. It will be sensitive to WIMP dark matter interactions down to the neutrino floor, the double beta decay of Xe-136, will allow for a precision measurement of low energy solar neutrinos, and will be sensitive to many other rare processes as well
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Ken Clark (Queen's University)10/05/2021, 13:50
Increased attention to low mass dark matter has necessitated the need for detectors with lowered energy thresholds. The Scintillating Bubble Chamber, to be installed at SNOLAB in 2022, builds on the world-leading work of the PICO collaboration, replacing the fluorine-based target with a noble liquid. The associated reduction in gamma sensitivity allows a much lower threshold to be set. Plans...
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Shawn Westerdale (Carleton University)10/05/2021, 14:10
DarkSide-LowMass is a tonne-scale liquid argon time projection chamber (LAr TPC) being planned by the Global Argon Dark Matter Collaboration (GADMC) to search for dark matter candidates with masses below 10 GeV/c^2 by optimizing the TPC for an electron-counting analysis and using underground argon that has been further depleted in argon-39. The DarkSide-50 detector has previously set leading...
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juan estrada (fermilab)10/05/2021, 15:00
The proposed Oscura project plans to deploy a skipper-CCD detector with 10 kg of active mass to search for low mass dark matter at SNOLAB. This projects brings together the teams working in previous CCD and skipper-CCD experiments (DAMIC,SENSEI, DAMIC-M) and is currently in its R&D stage. I will discuss the scientific reach of this project, and its status and plans.
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Guillaume Giroux (Queen's University)10/05/2021, 15:20
The NEWS-G collaboration searches for low mass dark matter particles with spherical proportional counters (SPCs) filled with light atomic mass gases. The current phase of the experiment, a 140-cm diameter SPC, is set to start searching for dark matter as soon as spring or summer 2021. The collaboration is planning to replace the commercial copper SPC with a fully electroformed SPC to be...
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Daniel Mckinsey10/05/2021, 15:40
The TESSERACT project is currently in a planning phase, funded under the DOE Dark Matter New Initiatives program, and aims to produce fully defined experiments (dubbed HeRALD and SPICE) that will explore DM mass parameter space down to 10 MeV, with upgrade paths to sub-MeV. It will be sensitive to both nuclear recoil DM
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(NRDM) and electron recoil (ERDM). An initial period of targeted R&D is... -
Laura Cardani (INFN - National Institute for Nuclear Physics)11/05/2021, 11:00
Superconducting circuits are emerging among the leading technologies to develop quantum processors. There are increasing evidences that a low-radioactivity environment could largely benefit next-generation quantum bits both in terms of coherence time and quantum error correction protocols. In this talk I will review the status and perspectives of the studies relating radioactivity to quantum bits.
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Jake Pirkkanen (Laurentian University)11/05/2021, 11:20
Researching the Effects of the Absence and Presence of Ionizing Radiation (REPAIR) is a deep-underground radiobiology experiment investigating the effects of Natural Background Radiation (NBR) on biological systems. Utilizing a specialized experimental incubator that was designed and engineered to shield NBR below levels found at the surface, REPAIR is using several biological model systems to...
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Thomas Merritt (LU)11/05/2021, 11:40
Working deep underground is a physiological challenge. Anecdotally, we know that working deep underground is physically and mentally demanding adding a challenge beyond what we experience on the surface. As mines, and laboratories go deeper, these challenges will become more pronounced. What if we could reduce this stress? As a first step in this process, we have quantified the effect of...
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Silvia Scorza (SNOLAB)11/05/2021, 12:00
The Cosmic Ray Live project aims at building three muon detectors at SNOLAB. The detectors can measure muons in real time and show their trajectories. They would add significant data to the existing array and promote the international relationships that make science possible. One of SNOLAB’s missions is to inspire the next generation of innovators through strong educational outreach. This...
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Steven Douglas Biller (University of Oxford (GB))11/05/2021, 13:00
The origin of neutrino mass is one of the central puzzles in particle physics today. It is intimately connected to the question of whether neutrinos can act as their own antiparticle, with fundamental implications for both particle physics and cosmology. The only known experimental approach that can be practically used to address this question is the search for neutrinoless double beta decay,...
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Thomas Brunner (McGill University)11/05/2021, 13:20
Despite tremendous progress in understanding the fundamental properties of neutrinos over the past decades, several key questions remain unanswered. In particular, we do not yet know if neutrinos are Majorana particles, i.e., are neutrinos and antineutrinos identical? The most sensitive experimental probe of the Majorana nature of the neutrino is to search for the lepton-number violating...
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Matteo Agostini (University College London)11/05/2021, 13:40
The LEGEND Collaboration pursues an experimental program to discover the neutrinoless double-beta decay of Ge-76, using an array of high-purity Ge detectors operated in a bath of liquid argon. The program follows a staged approach starting with a 200-kg mass experiment currently under preparation at the Gran Sasso Laboratory in Italy. LEGEND-200 will begin operations in 2021, reaching in five...
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Juan Jose Gomez Cadenas (Donostia International Physics Center (DIPC) (ES))11/05/2021, 14:30
The NEXT project will be presented, describing the excellent performance of the current NEXT-White apparatus (5 kg of enriched xenon), and the status of NEXT-100 detector (100 kg of enriched xenon), currently under construction. Plans for the ton-scale phase will also be discussed. Currently two options are being studied by the collaboration. NEXT-HD would be a detector with a mass in the...
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Robert Charles Svoboda (University of California Davis (US))11/05/2021, 14:50
Traditional optical neutrino detectors have fallen into two general categories: Cherenkov detectors that utilize the prompt, directional light from superluminal charged particles, and scintillator detectors that use the isotropic light from excitation of aromatic molecules via ionization. Both types have advantages and disadvantages as regards to tracking, energy resolution, and particle...
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Julieta Y Gruszko11/05/2021, 15:10
NuDOT is a ton-scale prototype of a directional liquid scintillator. The direction of particles is reconstructed using a combination of fast photodetector timing, long wavelength sensitivity and novel liquid scintillators. The detector has been constructed and will be commissioned this summer. We have currently planned a 3-5 yr surface run for demonstrating the technique on this scale and the...
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Wolfgang Rau12/05/2021, 11:00
The Cryogenic Underground TEst facility (CUTE) – developed as a test facility for devices that require low temperatures (~10 mK) and low backgrounds – is operational at SNOLAB since 2019. Particular care was also taken in providing a low-noise and low-vibration environment for the experimental setup. This presentation discusses the features and performance of the facility, the current...
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Caio Licciardi (Laurentian University)12/05/2021, 11:20
The possible need of nearly 50 tonnes of 136Xe to search for neutrinoless double beta decay motivates an investigation of economical ways to enrich the xenon. The technique currently available at a limited number of manufacturers is centrifuge separation. Distillation is a potential alternative that relies on the isotopic variation of vapour pressures. Our group has provided the first credible...
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Silvia Scorza (SNOLAB)12/05/2021, 11:40
Astroparticle physics experiments searching for rare events, such as neutrinoless double beta decay and dark matter particle interactions, have to be shielded from background radiation and have to exhibit a radioactive background as low as reasonably achievable. The material selection for the next generation of low-background experiments is becoming crucial to inform the final design of the...
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Lina Anselmo (SNOLAB)12/05/2021, 12:30
Scientific Support Services play an integral role in the science at SNOLAB providing quality data, expertise and support to experiments, internal projects, and operations. Capabilities include low background counting, analytical and radio assay techniques, radon emanation studies and chemical purification processes.
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I will be presenting a general overview of our scientific capabilities,... -
Shaun Hall (SNOLAB)12/05/2021, 12:35
As the inexorable march of particle and astrophysics continues, the requirements for purity of metals for use in every conceivable aspect of these experiments grows. Returning to one of the very first metals utilized in large scale by humans, we are embarking upon a New Copper Age in particle and astrophysics, requiring previously near inconceivable levels of elemental purity and perfection...
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Nasim Fatemi12/05/2021, 12:55
Backgrounds from radon decay products are problematic for current and future low energy neutrino and rare-event searches. At SNOLAB we have various instruments in order to monitor radon in the air and in ultra pure water and to constrain radon emanating from detector components. We also have brand new data acquisition system used for radon counting. My talk will focus on these topics and...
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Steven Back (SNOLAB)12/05/2021, 13:10
Multiple projects as SNOLAB use liquid nitrogen to cool and operate their experiments on a day-to-day basis. High purity Nitrogen is also used for cover gas, purification processes, and operating high purity equipment. Currently, up to 3,000 L per week of Liquid Nitrogen is shipped underground at SNOLAB and consumed.
This project will generate high purity liquid nitrogen (99.999%)...
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12/05/2021, 15:30
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Blaire Flynn (SNOLAB), Daniel Banks12/05/2021, 15:40
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12/05/2021, 16:10
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