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Michela Lai (Queen's University)28/07/2026, 10:30
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Mason Buchanan (University of Toronto)28/07/2026, 11:30
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Avani Bhardwaj28/07/2026, 11:50
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Peter Taylor (Queens University)28/07/2026, 12:10
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Shailaja Mohanty28/07/2026, 12:30
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Carter Garrah (Queen's University)28/07/2026, 15:30
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Dr William Woodley (University of Alberta)28/07/2026, 15:50
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Ezri Wyman (Queen's University)28/07/2026, 16:10
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Udaykaran Madaan (TRIUMF)28/07/2026, 16:30
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Alex Hayes (Queen's University)28/07/2026, 16:5020-Minute Talk (15-minute presentation, 5-min Q&A)
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Ryan Plestid29/07/2026, 09:00
Dark matter direct detection has seen a surge of progress in the mass window of 1 MeV - 1 GeV, however very-light but particle light dark matter remains a stubbornly elusive target. In this talk I will explain a detection strategy using "recoilless" quantum observables that are accessible via interferometry. These observables allow one to access particle-like dark matter all the way down to...
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Matt Stukkel29/07/2026, 09:30
Cryogenic (O(mK)) technologies are used for a variety of applications in astroparticle, nuclear, and quantum physics. Through my research I seek to optimize these technologies to measure very faint signals. This includes experiments searching for dark matter (SuperCDMS and COSINUS) and highly forbidden nuclear decays (RAMPS/LUCE). These experiments all utilize similar cryogenic systems but...
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Vijay Iyer29/07/2026, 10:00
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Dean Reiter (TRIUMF)29/07/2026, 11:00
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Han Wu (Queen's University, McDonald Institute)29/07/2026, 11:20
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Drona Vatsyayan (Carleton University)29/07/2026, 11:40
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Andrew Buchanan (Queen's University)29/07/2026, 12:00
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Jessie Thwaites (Queen's University)29/07/2026, 14:00
One of the key open questions of high energy astrophysics is the nature of astrophysical particle accelerators. Neutrinos may hold the key to solving this mystery: if protons are being accelerated in addition to electrons in the source, neutrinos will be produced alongside their electromagnetic radiation, providing a clear signature for the type of particles involved. Using signatures from...
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Conor McGrath (Queen's University)29/07/2026, 14:30
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Jakub Stacho29/07/2026, 14:50
The Pacific Ocean Neutrino Experiment (P-ONE) is a cubic-kilometre scale neutrino telescope planned to be deployed 2.6 km deep in the Pacific Ocean off Canada’s West Coast. P-ONE is designed to observe high-energy TeV to PeV astrophysical neutrinos and aims to identify their sources throughout the universe. The detector will consist of a three-dimensional lattice of optical modules...
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Bryan Owens (Queen's University)29/07/2026, 15:40
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Samin Majidi29/07/2026, 16:00
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Abo-bakr Emara29/07/2026, 16:20
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29/07/2026, 16:40
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Anupam Ray (Queen's University)20-Minute Talk (15-minute presentation, 5-min Q&A)
In this talk, I will walk you through how mono-energetic axions can be produced in abundance through nuclear de-excitations inside stars. If the axion couples to both nucleons and photons and is ultralight, these axions can convert into photons in the magnetic fields permeating astrophysical systems, generating monochromatic hard X-ray signatures. The non-detection of such X-ray lines...
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Anupam Ray (Queen's University)
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Alex Hayes (Queen's University)20-Minute Talk (15-minute presentation, 5-min Q&A)
This presentation will show a new analysis of bubble chamber dark matter detectors which could be used to discover composite dark matter. A bubble chamber contains a volume of superheated fluid which nucleates a bubble when enough energy is deposited in the fluid. Traditional analysis assumes that a bubble is nucleated from a single, high-energy interaction with a dark matter particle....
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Drona Vatsyayan (Carleton University)20-Minute Talk (15-minute presentation, 5-min Q&A)
Strong self-interaction among the active neutrinos mediated by a neutrinophilic scalar is a well-motivated target of particle physics and cosmological probes. In this talk, I will present precision electroweak constraints on models for neutrino self-interaction, pointing out the importance of neutrino charged-current coupling correction and its impact on the Fermi constant measurements. This...
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Han Wu (Queen's University, McDonald Institute)20-Minute Talk (15-minute presentation, 5-min Q&A)
The recent discoveries of the high-redshift quasars at $z\sim6-10.1$ present a challenge to conventional supermassive black hole (SMBH) formation scenarios: their central SMBH is too large to have grown from early stellar remnants, even under efficient super-Eddington accretion. An alternative approach is the direct collapse of primordial, dust and metal-free gas clouds into black hole seeds...
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Samin Majidi20-Minute Talk (15-minute presentation, 5-min Q&A)
Neutrinoless double beta decay ($0\nu\beta\beta$) is a hypothetical nuclear process in which two neutrons in a nucleus transform into two protons and two electrons without emitting electron antineutrinos. Its observation would demonstrate lepton number violation in weak processes and confirm that neutrinos are Majorana particles. Next-generation $0\nu\beta\beta$ searches using candidate...
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Dean Reiter (TRIUMF)20-Minute Talk (15-minute presentation, 5-min Q&A)
The DarkLight experiment being commissioned at TRIUMF will search for evidence of a new, fifth force carrier that is hypothesized to explain recent experimental anomalies and potentially couple to the dark sector. Collider experiments like DarkLight complement direct detection searches for weakly-interacting massive particles (WIMPs) and axions by offering sensitivity to alternative models in...
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Mason Buchanan (University of Toronto)20-Minute Talk (15-minute presentation, 5-min Q&A)
As part of the SuperCDMS (Cryogenic Dark Matter Search) experiment, small instruments dubbed HVeV (high-voltage, electronvolt-scale resolution) detectors have been under continuous development to aid in the search for dark matter at masses below 1 MeV/c², achieving a much finer energy resolution than the kilogram-scale HV detectors. Similar to the HV detectors, HVeV detectors hold silicon...
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Ezri Wyman (Queen's University)20-Minute Talk (15-minute presentation, 5-min Q&A)
The Scintillating Bubble Chamber (SBC) dark matter experiment uses superheated xenon-doped liquid argon to probe new areas of the WIMP mass-cross section parameter space. Accurate simulations of the behaviour of both the liquid argon active volume and CF4 hydraulic fluid components of the detector are integral to ensuring smooth operation and an accurate understanding of nucleation threshold....
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Peter Taylor (Queens University)20-Minute Talk (15-minute presentation, 5-min Q&A)
With the technical complexity required by ongoing dark matter direct detection experiments, as well as requiring more refined background rejection techniques, some direct detection experiments have the ability to investigate neutrinos as well. One such detector in recent years involves the liquid argon based DEAP-3600 experiment. The detector assembly allows for nearly 3600 kg of liquid argon...
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Bryan Owens (Queen's University)20-Minute Talk (15-minute presentation, 5-min Q&A)
The Pacific Ocean Neutrino Experiment (P-ONE) is a proposed next-generation, cubic-kilometer-scale ocean neutrino telescope for studying high-energy astrophysical neutrinos. Neutrinos are detected indirectly through the Cherenkov radiation produced when charged particles, created in neutrino interactions, travel through the water faster than the local speed of light. Photomultiplier tubes...
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Dr William Woodley (University of Alberta)20-Minute Talk (15-minute presentation, 5-min Q&A)
The PICO Collaboration searches for Weakly Interacting Massive Particles (WIMPs) using superheated C$_3$F$_8$ bubble chambers, achieving world-leading sensitivity to spin-dependent WIMP–proton interactions. The PICO-40L detector, housed at SNOLAB, is the first large-scale implementation of the "right-side-up" bubble chamber design in which the absence of a buffer fluid in contact with the...
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Andrew Buchanan (Queen's University)20-Minute Talk (15-minute presentation, 5-min Q&A)
Many realistic models for dark matter predict the formation of extremely heavy composite particles in the early universe, with masses well in excess of 10^20 GeV. Today, the fluxes of these particles today would too low to be detectable in direct detection experiments on human timescales. This motivates searches for dark matter signatures in minerals with several billion years. I discuss prior...
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Nahee Park20-Minute Talk (15-minute presentation, 5-min Q&A)
HELIX is a balloon-borne experiment designed to measure the chemical and isotopic abundances of light cosmic ray nuclei. HELIX is designed to achieve an event-by-event mass resolution of 3%. The detector consists of a 1 Tesla superconducting magnet, a high-resolution drift-chamber tracker, a time-of-flight detector, and a ring-imaging Cherenkov detector. HELIX had a successful engineering...
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Shailaja Mohanty20-Minute Talk (15-minute presentation, 5-min Q&A)
This talk presents the preliminary design of the Argon Ultra‑Radiopure Observatory for Rare‑event Analysis (AURORA), a proposed experiment using doped argon and targeting dark matter in the sub‑GeV mass range. The experiment will feature a dual-phase time projection chamber (TPC) instrumented with silicon photomultipliers and filled with argon mixed with a few ppm of dopants, such as xenon,...
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Carter Garrah (Queen's University)20-Minute Talk (15-minute presentation, 5-min Q&A)
Bubble chambers are a detector technology that has experienced renewed interest in particle physics in recent years, particularly for dark matter searches. By employing a superheated liquid target, bubble chambers enable dual-channel event discrimination through correlated optical and acoustic signals generated during bubble nucleation. The Scintillating Bubble Chamber (SBC) experiment...
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Mr Edward Thomas (Queen's University (Arthur B. McDonald Canadian Astroparticle Physics Research Institute))20-Minute Talk (15-minute presentation, 5-min Q&A)
Test Abstract about my Kingston Coffee Roasters "Dark Matter" blend.
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Avani Bhardwaj20-Minute Talk (15-minute presentation, 5-min Q&A)
The CATCHY experiment (Coherent Atomic Transitions in Cold Hydrogen) is a direct dark matter search designed to amplify weak particle interactions through macroscopic quantum coherence. Standard direct detection methods improve sensitivity by increasing target mass and exposure time, a regime where signal rates scale linearly ($N$). In contrast, a CATCHY-style detector uses two-photon...
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Abo-bakr Emara20-Minute Talk (15-minute presentation, 5-min Q&A)
Physics experiments searching for rare particle interactions, such as dark matter detection and neutrinoless double beta decay, require extremely low levels of intrinsic radioactivity in their detectors. Material screening for natural radioactivity is therefore critical to achieving the sensitivity needed for these searches. One of the dominant background sources in such experiments is radon...
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Udaykaran Madaan (TRIUMF)20-Minute Talk (15-minute presentation, 5-min Q&A)
Silicon photomultipliers (SiPMs) are increasingly important photosensors in rare-event and low-background experiments, including dark matter and neutrino detector programs, due to their high gain, compactness, improved radiopurity relative to PMTs, and single-photon resolution. As these experiments demand lower thresholds and improved background rejection, a more detailed understanding of...
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Udaykaran Madaan (TRIUMF)
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