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Meghan Naar (TRIUMF)23/06/2026, 18:00Particle Physics / Physique des particules (PPD)Poster Competition (Graduate Student) / Compétition affiches (Étudiant(e) 2e ou 3e cycle)
The PIONEER experiment is a next-generation investigation into rare pion decays, aimed at probing beyond the Standard Model (SM) physics by accurately measuring the charged-pion branching ratio of electrons versus muons Re/$\mu$ - providing a sensitive test of Lepton Flavour Universality. The SM provides a calculation of Re/$\mu$ at the 0.01% level, a factor 15 times better than the most...
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Grace Zhang (University of Western Ontario)23/06/2026, 18:00Physics in Medicine and Biology / Physique en médecine et en biologie (DPMB-DPMB)Poster Competition (Undergraduate Student) / Compétition affiches (Étudiant(e) du 1er cycle)
Positron emission tomography (PET) is a molecular imaging technique that detects gamma photons from an injected radiotracer to map biological activity in the body. Accurate attenuation correction provided by computed tomography (CT) maps is important for PET to increase image quality, but standalone PET scanners don’t have a co-registered CT map which limits the correction quality and...
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Devon Leskiw (Carleton University)23/06/2026, 18:00Particle Physics / Physique des particules (PPD)Poster Competition (Graduate Student) / Compétition affiches (Étudiant(e) 2e ou 3e cycle)
This study investigates the impact of dark matter halo rotation on satellite orbital decay rates and tidal stream formation, with a focus on the role of dynamical friction and energy loss. Using N-body simulations and analytical models, the effects of varying halo spin isotropies on satellite motion and the resulting tidal streams are examined. The results show that co-rotation with the...
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Kimia Ghanaatpisheh (Carleton University)23/06/2026, 18:00Particle Physics / Physique des particules (PPD)Poster Competition (Graduate Student) / Compétition affiches (Étudiant(e) 2e ou 3e cycle)
Electroweak phase transitions in the early Universe are widely studied because they can provide the out-of-equilibrium conditions needed for baryogenesis. We consider a two-field scenario where an extra real scalar field is coupled to the Higgs field, and the thermal history happens in two steps: first, the scalar field develops a non-zero vacuum expectation value while the Higgs vacuum...
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Keiran Nicholson (University of Alberta)23/06/2026, 18:00Particle Physics / Physique des particules (PPD)Poster Competition (Graduate Student) / Compétition affiches (Étudiant(e) 2e ou 3e cycle)
Dark matter (DM) constitutes the majority of the universe’s mass but remains undetected on Earth. The New Experiments with Spheres - Gas (NEWS-G) experiment is designed to directly detect low-mass dark matter candidates using a spherical proportional counter filled with light noble gases, enabling sensitivity to single electrons. At these low energies, the coherent elastic scattering of solar...
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Fazlul Yasin (Carleton University Ottawa)23/06/2026, 18:00Particle Physics / Physique des particules (PPD)Poster Competition (Graduate Student) / Compétition affiches (Étudiant(e) 2e ou 3e cycle)
Astronomical observations indicate that dark matter exists, but what it is and how it is produced remains unsolved. We consider the possibility that dark matter is made up of a sea of cold degenerate fermions. Such particles may be produced out of thermal equilibrium in the very early universe, just after inflation. Production happens through the non-perturbative mechanism of fermionic...
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Florian Brandstatter (University of Toronto)23/06/2026, 18:00Particle Physics / Physique des particules (PPD)Poster Competition (Undergraduate Student) / Compétition affiches (Étudiant(e) du 1er cycle)
Astrophysical observations suggest that the Standard Model of particle physics is incomplete. The abundance of matter over antimatter in the universe requires new physics that violates time-reversal (T) symmetry. Moreover, axionlike particles, a well-motivated dark matter candidate, produce oscillating T-violation. Gluon couplings to new particles or fields lead to T-violating nuclear moments,...
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Cassandra Harms (University of Toronto)23/06/2026, 18:00Particle Physics / Physique des particules (PPD)Poster Competition (Graduate Student) / Compétition affiches (Étudiant(e) 2e ou 3e cycle)
SuperCDMS is searching for dark matter in the sub 10 GeV region using silicon and germanium detectors cooled to <20mK. The cooling is done with a suite of cryocoolers, including 2 Gifford-McMahon coolers, 3 pulse tube coolers, and one dilution refrigerator. For cryogenic control SuperCDMS relies on a large number of thermometers, heaters, pressure transducers, and valves to control and monitor...
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Xiaoqing Wu (Carleton University)23/06/2026, 18:00Particle Physics / Physique des particules (PPD)Poster Competition (Undergraduate Student) / Compétition affiches (Étudiant(e) du 1er cycle)
Entangled quantum systems violate Bell's inequality. Quantum entanglement has been observed in photon systems through Bell's inequality test. Particle physicists have been interested in testing Bell's inequality at various particle colliders, e.g. through top quark pairs at the LHC, providing a new realm of entangled systems at much higher energies than previously observed. One such entangled...
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